diff --git a/Makefile.in b/Makefile.in
index 060299b7f7ec..52946a266d00 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -904,20 +904,18 @@ uninstall-am:
 	tags tags-recursive uninstall uninstall-am
 
 srpm-modules:
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" srpm-common
+@CONFIG_KERNEL_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" srpm-common
 
 srpm-utils:
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" srpm-common
+@CONFIG_USER_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" srpm-common
 
 srpm: srpm-modules srpm-utils
 
 rpm-modules: srpm-modules
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" rpm-common
+@CONFIG_KERNEL_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" rpm-common
 
 rpm-utils: srpm-utils
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" rpm-common
-
-rpm-modules: srpm-modules
+@CONFIG_USER_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" rpm-common
 
 rpm: rpm-modules rpm-utils
 
@@ -995,25 +993,25 @@ deb-local:
 	fi)
 
 deb-modules: deb-local rpm-modules
-	name=${PACKAGE}-modules; \
-	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
-	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
-	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
-	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
-	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
-	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2; \
-	$(RM) $$pkg1 $$pkg2
+@CONFIG_KERNEL_TRUE@	name=${PACKAGE}-modules; \
+@CONFIG_KERNEL_TRUE@	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
+@CONFIG_KERNEL_TRUE@	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
+@CONFIG_KERNEL_TRUE@	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
+@CONFIG_KERNEL_TRUE@	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
+@CONFIG_KERNEL_TRUE@	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
+@CONFIG_KERNEL_TRUE@	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2; \
+@CONFIG_KERNEL_TRUE@	$(RM) $$pkg1 $$pkg2
 
 deb-utils: deb-local rpm-utils
-	name=${PACKAGE}; \
-	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
-	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
-	pkg1=$${name}-$${version}.$${arch}.rpm; \
-	pkg2=$${name}-devel-$${version}.$${arch}.rpm; \
-	pkg3=$${name}-test-$${version}.$${arch}.rpm; \
-	pkg4=$${name}-dracut-$${version}.$${arch}.rpm; \
-	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2 $$pkg3 $$pkg4; \
-	$(RM) $$pkg1 $$pkg2 $$pkg3 $$pkg4
+@CONFIG_USER_TRUE@	name=${PACKAGE}; \
+@CONFIG_USER_TRUE@	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
+@CONFIG_USER_TRUE@	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
+@CONFIG_USER_TRUE@	pkg1=$${name}-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	pkg2=$${name}-devel-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	pkg3=$${name}-test-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	pkg4=$${name}-dracut-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2 $$pkg3 $$pkg4; \
+@CONFIG_USER_TRUE@	$(RM) $$pkg1 $$pkg2 $$pkg3 $$pkg4
 
 deb: deb-modules deb-utils
 tgz-local:
@@ -1026,24 +1024,24 @@ tgz-local:
 	fi)
 
 tgz-modules: tgz-local rpm-modules
-	name=${PACKAGE}-modules; \
-	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
-	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
-	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
-	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
-	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
-	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2; \
-	$(RM) $$pkg1 $$pkg2
+@CONFIG_KERNEL_TRUE@	name=${PACKAGE}-modules; \
+@CONFIG_KERNEL_TRUE@	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
+@CONFIG_KERNEL_TRUE@	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
+@CONFIG_KERNEL_TRUE@	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
+@CONFIG_KERNEL_TRUE@	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
+@CONFIG_KERNEL_TRUE@	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
+@CONFIG_KERNEL_TRUE@	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2; \
+@CONFIG_KERNEL_TRUE@	$(RM) $$pkg1 $$pkg2
 
 tgz-utils: tgz-local rpm-utils
-	name=${PACKAGE}; \
-	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
-	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
-	pkg1=$${name}-$${version}.$${arch}.rpm; \
-	pkg2=$${name}-devel-$${version}.$${arch}.rpm; \
-	pkg3=$${name}-test-$${version}.$${arch}.rpm; \
-	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2 $$pkg3; \
-	$(RM) $$pkg1 $$pkg2 $$pkg3
+@CONFIG_USER_TRUE@	name=${PACKAGE}; \
+@CONFIG_USER_TRUE@	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
+@CONFIG_USER_TRUE@	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
+@CONFIG_USER_TRUE@	pkg1=$${name}-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	pkg2=$${name}-devel-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	pkg3=$${name}-test-$${version}.$${arch}.rpm; \
+@CONFIG_USER_TRUE@	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2 $$pkg3; \
+@CONFIG_USER_TRUE@	$(RM) $$pkg1 $$pkg2 $$pkg3
 
 tgz: tgz-modules tgz-utils
 
@@ -1056,10 +1054,10 @@ sarch-utils:
 sarch: sarch-modules sarch-utils
 
 arch-modules:
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" arch-common
+@CONFIG_KERNEL_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" arch-common
 
 arch-utils:
-	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" arch-common
+@CONFIG_USER_TRUE@	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" arch-common
 
 arch: arch-modules arch-utils
 
diff --git a/README.markdown b/README.markdown
index 739370cb006e..a8abb00d3484 100644
--- a/README.markdown
+++ b/README.markdown
@@ -7,5 +7,11 @@ and ZVOL with a ZFS Posix Layer (ZPL) on the way!
     $ ./configure
     $ make pkg
 
+To copy the kernel code inside your kernel source tree for builtin
+compilation:
+
+    $ ./configure --enable-linux-builtin --with-linux=/usr/src/linux-...
+    $ ./copy-builtin /usr/src/linux-...
+
 Full documentation for building, configuring, and using ZFS can be
 found at: <http://zfsonlinux.org>
diff --git a/config/arch.am b/config/arch.am
index 591013afd10c..da43fe73898e 100644
--- a/config/arch.am
+++ b/config/arch.am
@@ -13,10 +13,14 @@ sarch-utils:
 sarch: sarch-modules sarch-utils
 
 arch-modules:
+if CONFIG_KERNEL
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" arch-common
+endif
 
 arch-utils:
+if CONFIG_USER
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" arch-common
+endif
 
 arch: arch-modules arch-utils
 
diff --git a/config/deb.am b/config/deb.am
index 18b56547bc04..36204b41c742 100644
--- a/config/deb.am
+++ b/config/deb.am
@@ -15,6 +15,7 @@ deb-local:
 	fi)
 
 deb-modules: deb-local rpm-modules
+if CONFIG_KERNEL
 	name=${PACKAGE}-modules; \
 	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
 	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
@@ -23,8 +24,10 @@ deb-modules: deb-local rpm-modules
 	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
 	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2; \
 	$(RM) $$pkg1 $$pkg2
+endif
 
 deb-utils: deb-local rpm-utils
+if CONFIG_USER
 	name=${PACKAGE}; \
 	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
 	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
@@ -34,5 +37,6 @@ deb-utils: deb-local rpm-utils
 	pkg4=$${name}-dracut-$${version}.$${arch}.rpm; \
 	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2 $$pkg3 $$pkg4; \
 	$(RM) $$pkg1 $$pkg2 $$pkg3 $$pkg4
+endif
 
 deb: deb-modules deb-utils
diff --git a/config/kernel-bdi-setup-and-register.m4 b/config/kernel-bdi-setup-and-register.m4
index 56fab8757374..4196091e91be 100644
--- a/config/kernel-bdi-setup-and-register.m4
+++ b/config/kernel-bdi-setup-and-register.m4
@@ -5,11 +5,17 @@ dnl # exported by the kernel.  This is a trivial helper function but
 dnl # using it significantly simplifies the code surrounding setting
 dnl # up and tearing down the bdi structure.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[bdi_setup_and_register],
-		[mm/backing-dev.c],
-		[AC_DEFINE(HAVE_BDI_SETUP_AND_REGISTER, 1,
-		[bdi_setup_and_register() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER],
+	[AC_MSG_CHECKING([whether bdi_setup_and_register() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/backing-dev.h>
+	], [
+		bdi_setup_and_register(NULL, NULL, 0);
+	], [bdi_setup_and_register], [mm/backing-dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_BDI_SETUP_AND_REGISTER, 1,
+		          [bdi_setup_and_register() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-blkdev-get-by-path.m4 b/config/kernel-blkdev-get-by-path.m4
index 0d5d2b120dec..40ecc06b6c92 100644
--- a/config/kernel-blkdev-get-by-path.m4
+++ b/config/kernel-blkdev-get-by-path.m4
@@ -3,11 +3,17 @@ dnl # 2.6.38 API change
 dnl # open_bdev_exclusive() changed to blkdev_get_by_path()
 dnl # close_bdev_exclusive() changed to blkdev_put()
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[blkdev_get_by_path],
-		[fs/block_dev.c],
-		[AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
-		[blkdev_get_by_path() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH],
+	[AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		blkdev_get_by_path(NULL, 0, NULL);
+	], [blkdev_get_by_path], [fs/block_dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
+		          [blkdev_get_by_path() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-check-disk-size-change.m4 b/config/kernel-check-disk-size-change.m4
index 1a730c0c5715..ea5c75f39f20 100644
--- a/config/kernel-check-disk-size-change.m4
+++ b/config/kernel-check-disk-size-change.m4
@@ -2,11 +2,17 @@ dnl #
 dnl # 2.6.28 API change
 dnl # Added check_disk_size_change() helper function.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_CHECK_DISK_SIZE_CHANGE], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[check_disk_size_change],
-		[fs/block_dev.c],
-		[AC_DEFINE(HAVE_CHECK_DISK_SIZE_CHANGE, 1,
-		[check_disk_size_change() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_CHECK_DISK_SIZE_CHANGE],
+	[AC_MSG_CHECKING([whether check_disk_size_change() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		check_disk_size_change(NULL, NULL);
+	], [check_disk_size_change], [fs/block_dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_CHECK_DISK_SIZE_CHANGE, 1,
+		          [check_disk_size_change() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-clear-inode.m4 b/config/kernel-clear-inode.m4
index e3eace2b26a7..8d880fcd8f50 100644
--- a/config/kernel-clear-inode.m4
+++ b/config/kernel-clear-inode.m4
@@ -19,11 +19,16 @@ dnl # Therefore, to ensure we have the correct API we only allow the
 dnl # clear_inode() compatibility code to be defined iff the evict_inode()
 dnl # functionality is also detected.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_CLEAR_INODE], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[clear_inode],
-		[fs/inode.c],
-		[AC_DEFINE(HAVE_CLEAR_INODE, 1,
-		[clear_inode() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_CLEAR_INODE],
+	[AC_MSG_CHECKING([whether clear_inode() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		clear_inode(NULL);
+	], [clear_inode], [fs/inode.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_CLEAR_INODE, 1, [clear_inode() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-d-make-root.m4 b/config/kernel-d-make-root.m4
index fd2c52d74a40..9c2b73dcbf59 100644
--- a/config/kernel-d-make-root.m4
+++ b/config/kernel-d-make-root.m4
@@ -2,11 +2,16 @@ dnl #
 dnl # 3.4.0 API change
 dnl # Added d_make_root() to replace previous d_alloc_root() function.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_D_MAKE_ROOT], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[d_make_root],
-		[fs/dcache.c],
-		[AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
-		[d_make_root() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_D_MAKE_ROOT],
+	[AC_MSG_CHECKING([whether d_make_root() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/dcache.h>
+	], [
+		d_make_root(NULL);
+	], [d_make_root], [fs/dcache.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_D_MAKE_ROOT, 1, [d_make_root() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-d-obtain-alias.m4 b/config/kernel-d-obtain-alias.m4
index d80a1c89c446..2b4b11eccc1b 100644
--- a/config/kernel-d-obtain-alias.m4
+++ b/config/kernel-d-obtain-alias.m4
@@ -2,11 +2,17 @@ dnl #
 dnl # 2.6.28 API change
 dnl # Added d_obtain_alias() helper function.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_D_OBTAIN_ALIAS], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[d_obtain_alias],
-		[fs/dcache.c],
-		[AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
-		[d_obtain_alias() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_D_OBTAIN_ALIAS],
+	[AC_MSG_CHECKING([whether d_obtain_alias() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/dcache.h>
+	], [
+		d_obtain_alias(NULL);
+	], [d_obtain_alias], [fs/dcache.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
+		          [d_obtain_alias() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-get-gendisk.m4 b/config/kernel-get-gendisk.m4
index 8cd725f0e0b3..b0913770e43d 100644
--- a/config/kernel-get-gendisk.m4
+++ b/config/kernel-get-gendisk.m4
@@ -1,11 +1,17 @@
 dnl #
 dnl # 2.6.34 API change
-dnl # Verify the get_gendisk() symbol is exported.
+dnl # Verify the get_gendisk() symbol is available.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_GET_GENDISK], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[get_gendisk],
-		[block/genhd.c],
-		[AC_DEFINE(HAVE_GET_GENDISK, 1, [get_gendisk() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_GET_GENDISK],
+	[AC_MSG_CHECKING([whether get_gendisk() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/genhd.h>
+	], [
+		get_gendisk(0, NULL);
+	], [get_gendisk], [block/genhd.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_GET_GENDISK, 1, [get_gendisk() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-insert-inode-locked.m4 b/config/kernel-insert-inode-locked.m4
index 1faff7e642b3..da141d180a9e 100644
--- a/config/kernel-insert-inode-locked.m4
+++ b/config/kernel-insert-inode-locked.m4
@@ -2,11 +2,17 @@ dnl #
 dnl # 2.6.28 API change
 dnl # Added insert_inode_locked() helper function.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_INSERT_INODE_LOCKED], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[insert_inode_locked],
-		[fs/inode.c],
-		[AC_DEFINE(HAVE_INSERT_INODE_LOCKED, 1,
-		[insert_inode_locked() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_INSERT_INODE_LOCKED],
+	[AC_MSG_CHECKING([whether insert_inode_locked() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		insert_inode_locked(NULL);
+	], [insert_inode_locked], [fs/inode.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_INSERT_INODE_LOCKED, 1,
+		          [insert_inode_locked() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-mount-nodev.m4 b/config/kernel-mount-nodev.m4
index 9229d5b1bb0d..28a45157e4d0 100644
--- a/config/kernel-mount-nodev.m4
+++ b/config/kernel-mount-nodev.m4
@@ -5,11 +5,16 @@ dnl # in the file_system_type structure.  When using the new
 dnl # interface the caller must now use the mount_nodev() helper.
 dnl # This updated callback and helper no longer pass the vfsmount.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_MOUNT_NODEV], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[mount_nodev],
-		[fs/super.c],
-		[AC_DEFINE(HAVE_MOUNT_NODEV, 1,
-		[mount_nodev() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_MOUNT_NODEV],
+	[AC_MSG_CHECKING([whether mount_nodev() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		mount_nodev(NULL, 0, NULL, NULL);
+	], [mount_nodev], [fs/super.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_MOUNT_NODEV, 1, [mount_nodev() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-open-bdev-exclusive.m4 b/config/kernel-open-bdev-exclusive.m4
index 734b2134cc43..0661315a610f 100644
--- a/config/kernel-open-bdev-exclusive.m4
+++ b/config/kernel-open-bdev-exclusive.m4
@@ -2,11 +2,17 @@ dnl #
 dnl # 2.6.28 API change
 dnl # open/close_bdev_excl() renamed to open/close_bdev_exclusive()
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[open_bdev_exclusive],
-		[fs/block_dev.c],
-		[AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,
-		[open_bdev_exclusive() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE],
+	[AC_MSG_CHECKING([whether open_bdev_exclusive() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		open_bdev_exclusive(NULL, 0, NULL);
+	], [open_bdev_exclusive], [fs/block_dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,
+		          [open_bdev_exclusive() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel-truncate-setsize.m4 b/config/kernel-truncate-setsize.m4
index d8b2b47bd7de..7e4aff479a90 100644
--- a/config/kernel-truncate-setsize.m4
+++ b/config/kernel-truncate-setsize.m4
@@ -2,11 +2,17 @@ dnl #
 dnl # 2.6.35 API change
 dnl # Added truncate_setsize() helper function.
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_TRUNCATE_SETSIZE], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[truncate_setsize],
-		[mm/truncate.c],
-		[AC_DEFINE(HAVE_TRUNCATE_SETSIZE, 1,
-		[truncate_setsize() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_TRUNCATE_SETSIZE],
+	[AC_MSG_CHECKING([whether truncate_setsize() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/mm.h>
+	], [
+		truncate_setsize(NULL, 0);
+	], [truncate_setsize], [mm/truncate.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_TRUNCATE_SETSIZE, 1,
+		          [truncate_setsize() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
diff --git a/config/kernel.m4 b/config/kernel.m4
index c65c58cc0ff1..a40bb5b6c1d3 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -4,6 +4,7 @@ dnl #
 AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
 	ZFS_AC_KERNEL
 	ZFS_AC_SPL
+	ZFS_AC_TEST_MODULE
 	ZFS_AC_KERNEL_CONFIG
 	ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS
 	ZFS_AC_KERNEL_TYPE_FMODE_T
@@ -86,7 +87,7 @@ dnl #
 AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [
 	modpost=$LINUX/scripts/Makefile.modpost
 	AC_MSG_CHECKING([kernel file name for module symbols])
-	AS_IF([test -f "$modpost"], [
+	AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [
 		AS_IF([grep -q Modules.symvers $modpost], [
 			LINUX_SYMBOLS=Modules.symvers
 		], [
@@ -158,7 +159,7 @@ AC_DEFUN([ZFS_AC_KERNEL], [
 		], [test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}], [
 			kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu}
 		], [test -d ${kernelsrc}-obj/${target_cpu}/default], [
-		        kernelbuild=${kernelsrc}-obj/${target_cpu}/default
+			kernelbuild=${kernelsrc}-obj/${target_cpu}/default
 		], [test -d `dirname ${kernelsrc}`/build-${target_cpu}], [
 			kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu}
 		], [
@@ -191,7 +192,13 @@ AC_DEFUN([ZFS_AC_KERNEL], [
 		])
 	], [
 		AC_MSG_RESULT([Not found])
-		AC_MSG_ERROR([*** Cannot find UTS_RELEASE definition.])
+		if test "x$enable_linux_builtin" != xyes; then
+			AC_MSG_ERROR([*** Cannot find UTS_RELEASE definition.])
+		else
+			AC_MSG_ERROR([
+	*** Cannot find UTS_RELEASE definition.
+	*** Please run 'make prepare' inside the kernel source tree.])
+		fi
 	])
 
 	AC_MSG_RESULT([$kernsrcver])
@@ -312,6 +319,25 @@ AC_DEFUN([ZFS_AC_SPL], [
 	ZFS_AC_SPL_MODULE_SYMVERS
 ])
 
+dnl #
+dnl # Basic toolchain sanity check.
+dnl #
+AC_DEFUN([ZFS_AC_TEST_MODULE],
+	[AC_MSG_CHECKING([whether modules can be built])
+	ZFS_LINUX_TRY_COMPILE([],[],[
+		AC_MSG_RESULT([yes])
+	],[
+		AC_MSG_RESULT([no])
+		if test "x$enable_linux_builtin" != xyes; then
+			AC_MSG_ERROR([*** Unable to build an empty module.])
+		else
+			AC_MSG_ERROR([
+	*** Unable to build an empty module.
+	*** Please run 'make scripts' inside the kernel source tree.])
+		fi
+	])
+])
+
 dnl #
 dnl # Certain kernel build options are not supported.  These must be
 dnl # detected at configure time and cause a build failure.  Otherwise
@@ -418,10 +444,12 @@ dnl # ZFS_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE
 dnl #
 AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [
 	m4_ifvaln([$1], [ZFS_LINUX_CONFTEST([$1])])
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
 	AS_IF(
-		[AC_TRY_COMMAND(cp conftest.c build && make [$2] -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
+		[AC_TRY_COMMAND(cp conftest.c build && make [$2] -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag) >/dev/null && AC_TRY_COMMAND([$3])],
 		[$4],
 		[_AC_MSG_LOG_CONFTEST m4_ifvaln([$5],[$5])]
 	)
@@ -463,30 +491,48 @@ dnl #
 dnl # ZFS_CHECK_SYMBOL_EXPORT
 dnl # check symbol exported or not
 dnl #
-AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT],
-	[AC_MSG_CHECKING([whether symbol $1 is exported])
+AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [
 	grep -q -E '[[[:space:]]]$1[[[:space:]]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
-	AS_IF([test $rc -ne 0], [
+	if test $rc -ne 0; then
 		export=0
 		for file in $2; do
-			grep -q -E "EXPORT_SYMBOL.*($1)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*($1)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
-			AS_IF([test $rc -eq 0], [
+			if test $rc -eq 0; then
 				export=1
 				break;
-			])
+			fi
 		done
-		AS_IF([test $export -eq 0], [
-			AC_MSG_RESULT([no])
+		if test $export -eq 0; then :
 			$4
-		], [
-			AC_MSG_RESULT([yes])
+		else :
 			$3
-		])
-	], [
-		AC_MSG_RESULT([yes])
+		fi
+	else :
 		$3
-	])
+	fi
+])
+
+dnl #
+dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL
+dnl # like ZFS_LINUX_TRY_COMPILE, except ZFS_CHECK_SYMBOL_EXPORT
+dnl # is called if not compiling for builtin
+dnl #
+AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [
+	ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1])
+	if test $rc -ne 0; then :
+		$6
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+			ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1])
+		fi
+		if test $rc -ne 0; then :
+			$6
+		else :
+			$5
+		fi
+	fi
 ])
diff --git a/config/rpm.am b/config/rpm.am
index 41107d5eeb43..c5929833b57f 100644
--- a/config/rpm.am
+++ b/config/rpm.am
@@ -1,18 +1,24 @@
 srpm-modules:
+if CONFIG_KERNEL
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" srpm-common
+endif
 
 srpm-utils:
+if CONFIG_USER
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" srpm-common
+endif
 
 srpm: srpm-modules srpm-utils
 
 rpm-modules: srpm-modules
+if CONFIG_KERNEL
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" rpm-common
+endif
 
 rpm-utils: srpm-utils
+if CONFIG_USER
 	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" rpm-common
-
-rpm-modules: srpm-modules
+endif
 
 rpm: rpm-modules rpm-utils
 
diff --git a/config/tgz.am b/config/tgz.am
index 1c13858ff5cf..1ed09ca40ea6 100644
--- a/config/tgz.am
+++ b/config/tgz.am
@@ -8,6 +8,7 @@ tgz-local:
 	fi)
 
 tgz-modules: tgz-local rpm-modules
+if CONFIG_KERNEL
 	name=${PACKAGE}-modules; \
 	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
 	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
@@ -16,8 +17,10 @@ tgz-modules: tgz-local rpm-modules
 	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
 	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2; \
 	$(RM) $$pkg1 $$pkg2
+endif
 
 tgz-utils: tgz-local rpm-utils
+if CONFIG_USER
 	name=${PACKAGE}; \
 	version=${ZFS_META_VERSION}-${ZFS_META_RELEASE}; \
 	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch} | tail -1`; \
@@ -26,5 +29,6 @@ tgz-utils: tgz-local rpm-utils
 	pkg3=$${name}-test-$${version}.$${arch}.rpm; \
 	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2 $$pkg3; \
 	$(RM) $$pkg1 $$pkg2 $$pkg3
+endif
 
 tgz: tgz-modules tgz-utils
diff --git a/config/zfs-build.m4 b/config/zfs-build.m4
index 6bfea51951ce..8e6b13b249f4 100644
--- a/config/zfs-build.m4
+++ b/config/zfs-build.m4
@@ -73,6 +73,11 @@ AC_DEFUN([ZFS_AC_CONFIG], [
 		AS_HELP_STRING([--with-config=CONFIG],
 		[Config file 'kernel|user|all|srpm']),
 		[ZFS_CONFIG="$withval"])
+	AC_ARG_ENABLE([linux-builtin],
+		[AC_HELP_STRING([--enable-linux-builtin],
+		[Configure for builtin in-tree kernel modules @<:@default=no@:>@])],
+		[],
+		[enable_linux_builtin=no])
 
 	AC_MSG_CHECKING([zfs config])
 	AC_MSG_RESULT([$ZFS_CONFIG]);
@@ -93,11 +98,10 @@ AC_DEFUN([ZFS_AC_CONFIG], [
 	esac
 
 	AM_CONDITIONAL([CONFIG_USER],
-	               [test "$ZFS_CONFIG" = user] ||
-	               [test "$ZFS_CONFIG" = all])
+		       [test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all])
 	AM_CONDITIONAL([CONFIG_KERNEL],
-	               [test "$ZFS_CONFIG" = kernel] ||
-	               [test "$ZFS_CONFIG" = all])
+		       [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+		       [test "x$enable_linux_builtin" != xyes ])
 ])
 
 dnl #
diff --git a/configure b/configure
index 22687f5197c1..9b97fb427afa 100755
--- a/configure
+++ b/configure
@@ -981,6 +981,7 @@ enable_fast_install
 with_gnu_ld
 enable_libtool_lock
 with_config
+enable_linux_builtin
 with_linux
 with_linux_obj
 with_spl
@@ -1643,6 +1644,8 @@ Optional Features:
   --enable-fast-install[=PKGS]
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-linux-builtin  Configure for builtin in-tree kernel modules
+                          [default=no]
   --enable-debug          Enable generic debug support [default=no]
   --enable-debug-dmu-tx   Enable dmu tx validation [default=no]
 
@@ -4839,13 +4842,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:4842: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:4845: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4845: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:4848: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4848: output\"" >&5)
+  (eval echo "\"\$as_me:4851: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -6051,7 +6054,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 6054 "configure"' > conftest.$ac_ext
+  echo '#line 6057 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -7904,11 +7907,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7907: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7910: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7911: \$? = $ac_status" >&5
+   echo "$as_me:7914: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8243,11 +8246,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8246: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8249: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8250: \$? = $ac_status" >&5
+   echo "$as_me:8253: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8348,11 +8351,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8351: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8354: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8355: \$? = $ac_status" >&5
+   echo "$as_me:8358: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8403,11 +8406,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8406: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8409: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8410: \$? = $ac_status" >&5
+   echo "$as_me:8413: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -11206,7 +11209,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11209 "configure"
+#line 11212 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11302,7 +11305,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11305 "configure"
+#line 11308 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11945,6 +11948,13 @@ if test "${with_config+set}" = set; then
   withval=$with_config; ZFS_CONFIG="$withval"
 fi
 
+	# Check whether --enable-linux-builtin was given.
+if test "${enable_linux_builtin+set}" = set; then
+  enableval=$enable_linux_builtin;
+else
+  enable_linux_builtin=no
+fi
+
 
 	{ $as_echo "$as_me:$LINENO: checking zfs config" >&5
 $as_echo_n "checking zfs config... " >&6; }
@@ -12123,7 +12133,7 @@ elif test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}; then
 
 elif test -d ${kernelsrc}-obj/${target_cpu}/default; then
 
-		        kernelbuild=${kernelsrc}-obj/${target_cpu}/default
+			kernelbuild=${kernelsrc}-obj/${target_cpu}/default
 
 elif test -d `dirname ${kernelsrc}`/build-${target_cpu}; then
 
@@ -12183,9 +12193,19 @@ else
 
 		{ $as_echo "$as_me:$LINENO: result: Not found" >&5
 $as_echo "Not found" >&6; }
-		{ { $as_echo "$as_me:$LINENO: error: *** Cannot find UTS_RELEASE definition." >&5
+		if test "x$enable_linux_builtin" != xyes; then
+			{ { $as_echo "$as_me:$LINENO: error: *** Cannot find UTS_RELEASE definition." >&5
 $as_echo "$as_me: error: *** Cannot find UTS_RELEASE definition." >&2;}
    { (exit 1); exit 1; }; }
+		else
+			{ { $as_echo "$as_me:$LINENO: error:
+	*** Cannot find UTS_RELEASE definition.
+	*** Please run 'make prepare' inside the kernel source tree." >&5
+$as_echo "$as_me: error:
+	*** Cannot find UTS_RELEASE definition.
+	*** Please run 'make prepare' inside the kernel source tree." >&2;}
+   { (exit 1); exit 1; }; }
+		fi
 
 fi
 
@@ -12205,7 +12225,7 @@ $as_echo "$kernsrcver" >&6; }
 	modpost=$LINUX/scripts/Makefile.modpost
 	{ $as_echo "$as_me:$LINENO: checking kernel file name for module symbols" >&5
 $as_echo_n "checking kernel file name for module symbols... " >&6; }
-	if test -f "$modpost"; then
+	if test "x$enable_linux_builtin" != xyes -a -f "$modpost"; then
 
 		if grep -q Modules.symvers $modpost; then
 
@@ -12394,6 +12414,76 @@ $as_echo "$SPL_SYMBOLS" >&6; }
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether modules can be built" >&5
+$as_echo_n "checking whether modules can be built... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+		if test "x$enable_linux_builtin" != xyes; then
+			{ { $as_echo "$as_me:$LINENO: error: *** Unable to build an empty module." >&5
+$as_echo "$as_me: error: *** Unable to build an empty module." >&2;}
+   { (exit 1); exit 1; }; }
+		else
+			{ { $as_echo "$as_me:$LINENO: error:
+	*** Unable to build an empty module.
+	*** Please run 'make scripts' inside the kernel source tree." >&5
+$as_echo "$as_me: error:
+	*** Unable to build an empty module.
+	*** Please run 'make scripts' inside the kernel source tree." >&2;}
+   { (exit 1); exit 1; }; }
+		fi
+
+
+
+fi
+
+	rm -Rf build
+
+
+
 
 
 	if test "$ZFS_META_LICENSE" = GPL; then
@@ -12438,9 +12528,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12510,9 +12602,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12562,9 +12656,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12671,9 +12767,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12736,9 +12834,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12802,9 +12902,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12868,9 +12970,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -12905,35 +13009,101 @@ fi
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether blkdev_get_by_path() is available" >&5
+$as_echo_n "checking whether blkdev_get_by_path() is available... " >&6; }
+
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		blkdev_get_by_path(NULL, 0, NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
+fi
+
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol blkdev_get_by_path is exported" >&5
-$as_echo_n "checking whether symbol blkdev_get_by_path is exported... " >&6; }
 	grep -q -E '[[:space:]]blkdev_get_by_path[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(blkdev_get_by_path)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(blkdev_get_by_path)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
@@ -12941,63 +13111,103 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether open_bdev_exclusive() is available" >&5
+$as_echo_n "checking whether open_bdev_exclusive() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BLKDEV_GET_BY_PATH 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		open_bdev_exclusive(NULL, 0, NULL);
+
+  ;
+  return 0;
+}
+
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol open_bdev_exclusive is exported" >&5
-$as_echo_n "checking whether symbol open_bdev_exclusive is exported... " >&6; }
 	grep -q -E '[[:space:]]open_bdev_exclusive[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(open_bdev_exclusive)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(open_bdev_exclusive)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_OPEN_BDEV_EXCLUSIVE 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -13007,8 +13217,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -13040,9 +13250,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13108,9 +13320,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13176,9 +13390,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13242,9 +13458,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13310,9 +13528,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13376,9 +13596,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13446,9 +13668,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13513,9 +13737,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13579,9 +13805,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13645,9 +13873,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13713,9 +13943,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13781,9 +14013,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13850,9 +14084,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13918,9 +14154,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -13987,9 +14225,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14056,9 +14296,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14126,9 +14368,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14196,9 +14440,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14265,9 +14511,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14334,9 +14582,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14403,9 +14653,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14473,9 +14725,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14542,9 +14796,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14610,9 +14866,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14679,9 +14937,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14748,9 +15008,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14817,9 +15079,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -14855,57 +15119,110 @@ fi
 
 	EXTRA_KCFLAGS="$tmp_flags"
 
+	{ $as_echo "$as_me:$LINENO: checking whether get_gendisk() is available" >&5
+$as_echo_n "checking whether get_gendisk() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol get_gendisk is exported" >&5
-$as_echo_n "checking whether symbol get_gendisk is exported... " >&6; }
-	grep -q -E '[[:space:]]get_gendisk[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in block/genhd.c; do
-			grep -q -E "EXPORT_SYMBOL.*(get_gendisk)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
-
-				export=1
-				break;
-
-fi
-
-		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GET_GENDISK 1
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
 _ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
 
-fi
+		#include <linux/genhd.h>
 
+int
+main (void)
+{
 
-else
+		get_gendisk(0, NULL);
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GET_GENDISK 1
 _ACEOF
 
 
-fi
-
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
+fi
+
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]get_gendisk[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in block/genhd.c; do
+			grep -q -E "EXPORT_SYMBOL.*(get_gendisk)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GET_GENDISK 1
+_ACEOF
+
+
+		fi
+	fi
 
 
 
@@ -14939,9 +15256,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15010,9 +15329,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15088,9 +15409,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15157,9 +15480,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15227,9 +15552,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15297,9 +15624,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15366,9 +15695,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15430,9 +15761,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15494,9 +15827,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15558,9 +15893,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15622,9 +15959,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15686,9 +16025,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15753,9 +16094,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15822,9 +16165,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15891,9 +16236,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -15960,9 +16307,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16028,9 +16377,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16096,9 +16447,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16166,9 +16519,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16235,9 +16590,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16303,9 +16660,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16372,9 +16731,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16409,329 +16770,327 @@ fi
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether clear_inode() is available" >&5
+$as_echo_n "checking whether clear_inode() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol clear_inode is exported" >&5
-$as_echo_n "checking whether symbol clear_inode is exported... " >&6; }
-	grep -q -E '[[:space:]]clear_inode[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in fs/inode.c; do
-			grep -q -E "EXPORT_SYMBOL.*(clear_inode)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/fs.h>
 
+int
+main (void)
+{
 
-else
+		clear_inode(NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CLEAR_INODE 1
 _ACEOF
 
 
-fi
-
-
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
 else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CLEAR_INODE 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-fi
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol insert_inode_locked is exported" >&5
-$as_echo_n "checking whether symbol insert_inode_locked is exported... " >&6; }
-	grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
+	grep -q -E '[[:space:]]clear_inode[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/inode.c; do
-			grep -q -E "EXPORT_SYMBOL.*(insert_inode_locked)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(clear_inode)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_INSERT_INODE_LOCKED 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_INSERT_INODE_LOCKED 1
+#define HAVE_CLEAR_INODE 1
 _ACEOF
 
 
-fi
-
-
+		fi
+	fi
 
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol d_make_root is exported" >&5
-$as_echo_n "checking whether symbol d_make_root is exported... " >&6; }
-	grep -q -E '[[:space:]]d_make_root[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
+	{ $as_echo "$as_me:$LINENO: checking whether insert_inode_locked() is available" >&5
+$as_echo_n "checking whether insert_inode_locked() is available... " >&6; }
 
-		export=0
-		for file in fs/dcache.c; do
-			grep -q -E "EXPORT_SYMBOL.*(d_make_root)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/fs.h>
 
+int
+main (void)
+{
 
-else
+		insert_inode_locked(NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_MAKE_ROOT 1
 _ACEOF
 
 
-fi
-
-
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
 else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_MAKE_ROOT 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-fi
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol d_obtain_alias is exported" >&5
-$as_echo_n "checking whether symbol d_obtain_alias is exported... " >&6; }
-	grep -q -E '[[:space:]]d_obtain_alias[[:space:]]' \
+	grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
-		for file in fs/dcache.c; do
-			grep -q -E "EXPORT_SYMBOL.*(d_obtain_alias)" "$LINUX/$file" 2>/dev/null
+		for file in fs/inode.c; do
+			grep -q -E "EXPORT_SYMBOL.*(insert_inode_locked)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_OBTAIN_ALIAS 1
+#define HAVE_INSERT_INODE_LOCKED 1
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether d_make_root() is available" >&5
+$as_echo_n "checking whether d_make_root() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_OBTAIN_ALIAS 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
 _ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
 
-fi
+		#include <linux/dcache.h>
 
+int
+main (void)
+{
 
+		d_make_root(NULL);
 
+  ;
+  return 0;
+}
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol check_disk_size_change is exported" >&5
-$as_echo_n "checking whether symbol check_disk_size_change is exported... " >&6; }
-	grep -q -E '[[:space:]]check_disk_size_change[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(check_disk_size_change)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
-
-				export=1
-				break;
-
-fi
-
-		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CHECK_DISK_SIZE_CHANGE 1
 _ACEOF
 
 
-fi
-
-
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
 else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CHECK_DISK_SIZE_CHANGE 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-fi
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol truncate_setsize is exported" >&5
-$as_echo_n "checking whether symbol truncate_setsize is exported... " >&6; }
-	grep -q -E '[[:space:]]truncate_setsize[[:space:]]' \
+	grep -q -E '[[:space:]]d_make_root[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
-		for file in mm/truncate.c; do
-			grep -q -E "EXPORT_SYMBOL.*(truncate_setsize)" "$LINUX/$file" 2>/dev/null
+		for file in fs/dcache.c; do
+			grep -q -E "EXPORT_SYMBOL.*(d_make_root)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_TRUNCATE_SETSIZE 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_TRUNCATE_SETSIZE 1
+#define HAVE_D_MAKE_ROOT 1
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether d_obtain_alias() is available" >&5
+$as_echo_n "checking whether d_obtain_alias() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether security_inode_init_security wants 6 args" >&5
-$as_echo_n "checking whether security_inode_init_security wants 6 args... " >&6; }
-	tmp_flags="$EXTRA_KCFLAGS"
-	EXTRA_KCFLAGS="-Werror"
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -16742,20 +17101,13 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 
-		#include <linux/security.h>
+		#include <linux/dcache.h>
 
 int
 main (void)
 {
 
-		struct inode *ip __attribute__ ((unused)) = NULL;
-		struct inode *dip __attribute__ ((unused)) = NULL;
-		const struct qstr *str __attribute__ ((unused)) = NULL;
-		char *name __attribute__ ((unused)) = NULL;
-		void *value __attribute__ ((unused)) = NULL;
-		size_t len __attribute__ ((unused)) = 0;
-
-		security_inode_init_security(ip, dip, str, &name, &value, &len);
+		d_obtain_alias(NULL);
 
   ;
   return 0;
@@ -16764,9 +17116,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16777,36 +17131,72 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_6ARGS_SECURITY_INODE_INIT_SECURITY 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]d_obtain_alias[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in fs/dcache.c; do
+			grep -q -E "EXPORT_SYMBOL.*(d_obtain_alias)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
 
 		{ $as_echo "$as_me:$LINENO: result: no" >&5
 $as_echo "no" >&6; }
 
+		else :
 
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
 
-fi
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_D_OBTAIN_ALIAS 1
+_ACEOF
 
-	rm -Rf build
 
+		fi
+	fi
 
-	EXTRA_KCFLAGS="$tmp_flags"
 
+	{ $as_echo "$as_me:$LINENO: checking whether check_disk_size_change() is available" >&5
+$as_echo_n "checking whether check_disk_size_change() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether security_inode_init_security wants callback" >&5
-$as_echo_n "checking whether security_inode_init_security wants callback... " >&6; }
-	tmp_flags="$EXTRA_KCFLAGS"
-	EXTRA_KCFLAGS="-Werror"
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -16817,18 +17207,13 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 
-		#include <linux/security.h>
+		#include <linux/fs.h>
 
 int
 main (void)
 {
 
-		struct inode *ip __attribute__ ((unused)) = NULL;
-		struct inode *dip __attribute__ ((unused)) = NULL;
-		const struct qstr *str __attribute__ ((unused)) = NULL;
-		initxattrs func __attribute__ ((unused)) = NULL;
-
-		security_inode_init_security(ip, dip, str, func, NULL);
+		check_disk_size_change(NULL, NULL);
 
   ;
   return 0;
@@ -16837,9 +17222,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16850,22 +17237,11 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CALLBACK_SECURITY_INODE_INIT_SECURITY 1
-_ACEOF
-
-
+  rc=0
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
-
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
+ rc=1
 
 
 fi
@@ -16873,64 +17249,60 @@ fi
 	rm -Rf build
 
 
-	EXTRA_KCFLAGS="$tmp_flags"
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol mount_nodev is exported" >&5
-$as_echo_n "checking whether symbol mount_nodev is exported... " >&6; }
-	grep -q -E '[[:space:]]mount_nodev[[:space:]]' \
+	grep -q -E '[[:space:]]check_disk_size_change[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
-		for file in fs/super.c; do
-			grep -q -E "EXPORT_SYMBOL.*(mount_nodev)" "$LINUX/$file" 2>/dev/null
+		for file in fs/block_dev.c; do
+			grep -q -E "EXPORT_SYMBOL.*(check_disk_size_change)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_MOUNT_NODEV 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_MOUNT_NODEV 1
+#define HAVE_CHECK_DISK_SIZE_CHANGE 1
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether truncate_setsize() is available" >&5
+$as_echo_n "checking whether truncate_setsize() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether super_block has s_shrink" >&5
-$as_echo_n "checking whether super_block has s_shrink... " >&6; }
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -16941,19 +17313,13 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 
-		#include <linux/fs.h>
+		#include <linux/mm.h>
 
 int
 main (void)
 {
 
-		int (*shrink)(struct shrinker *, struct shrink_control *sc)
-			__attribute__ ((unused)) = NULL;
-		struct super_block sb __attribute__ ((unused)) = {
-			.s_shrink.shrink = shrink,
-			.s_shrink.seeks = DEFAULT_SEEKS,
-			.s_shrink.batch = 0,
-		};
+		truncate_setsize(NULL, 0);
 
   ;
   return 0;
@@ -16962,9 +17328,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -16975,23 +17343,11 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_SHRINK 1
-_ACEOF
-
-
-
+  rc=0
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
-
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
+ rc=1
 
 
 fi
@@ -16999,10 +17355,62 @@ fi
 	rm -Rf build
 
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether super_block has s_bdi" >&5
-$as_echo_n "checking whether super_block has s_bdi... " >&6; }
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]truncate_setsize[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in mm/truncate.c; do
+			grep -q -E "EXPORT_SYMBOL.*(truncate_setsize)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_TRUNCATE_SETSIZE 1
+_ACEOF
+
+
+		fi
+	fi
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking whether security_inode_init_security wants 6 args" >&5
+$as_echo_n "checking whether security_inode_init_security wants 6 args... " >&6; }
+	tmp_flags="$EXTRA_KCFLAGS"
+	EXTRA_KCFLAGS="-Werror"
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -17013,14 +17421,20 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 
-		#include <linux/fs.h>
+		#include <linux/security.h>
 
 int
 main (void)
 {
 
-		struct super_block sb __attribute__ ((unused));
-		sb.s_bdi = NULL;
+		struct inode *ip __attribute__ ((unused)) = NULL;
+		struct inode *dip __attribute__ ((unused)) = NULL;
+		const struct qstr *str __attribute__ ((unused)) = NULL;
+		char *name __attribute__ ((unused)) = NULL;
+		void *value __attribute__ ((unused)) = NULL;
+		size_t len __attribute__ ((unused)) = 0;
+
+		security_inode_init_security(ip, dip, str, &name, &value, &len);
 
   ;
   return 0;
@@ -17029,9 +17443,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -17047,7 +17463,7 @@ _ACEOF
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_BDI 1
+#define HAVE_6ARGS_SECURITY_INODE_INIT_SECURITY 1
 _ACEOF
 
 
@@ -17065,63 +17481,86 @@ fi
 	rm -Rf build
 
 
+	EXTRA_KCFLAGS="$tmp_flags"
 
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol bdi_setup_and_register is exported" >&5
-$as_echo_n "checking whether symbol bdi_setup_and_register is exported... " >&6; }
-	grep -q -E '[[:space:]]bdi_setup_and_register[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
+	{ $as_echo "$as_me:$LINENO: checking whether security_inode_init_security wants callback" >&5
+$as_echo_n "checking whether security_inode_init_security wants callback... " >&6; }
+	tmp_flags="$EXTRA_KCFLAGS"
+	EXTRA_KCFLAGS="-Werror"
 
-		export=0
-		for file in mm/backing-dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(bdi_setup_and_register)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-fi
 
-		done
-		if test $export -eq 0; then
+		#include <linux/security.h>
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+int
+main (void)
+{
 
+		struct inode *ip __attribute__ ((unused)) = NULL;
+		struct inode *dip __attribute__ ((unused)) = NULL;
+		const struct qstr *str __attribute__ ((unused)) = NULL;
+		initxattrs func __attribute__ ((unused)) = NULL;
 
-else
+		security_inode_init_security(ip, dip, str, func, NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BDI_SETUP_AND_REGISTER 1
 _ACEOF
 
 
-fi
-
-
-else
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_BDI_SETUP_AND_REGISTER 1
+#define HAVE_CALLBACK_SECURITY_INODE_INIT_SECURITY 1
 _ACEOF
 
 
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
 fi
 
+	rm -Rf build
+
 
+	EXTRA_KCFLAGS="$tmp_flags"
 
+	{ $as_echo "$as_me:$LINENO: checking whether mount_nodev() is available" >&5
+$as_echo_n "checking whether mount_nodev() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether set_nlink() is available" >&5
-$as_echo_n "checking whether set_nlink() is available... " >&6; }
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -17138,9 +17577,7 @@ int
 main (void)
 {
 
-		struct inode node;
-		unsigned int link = 0;
-		(void) set_nlink(&node, link);
+		mount_nodev(NULL, 0, NULL, NULL);
 
   ;
   return 0;
@@ -17149,9 +17586,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -17162,110 +17601,466 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_SET_NLINK 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+
+	if test $rc -ne 0; then :
 
 		{ $as_echo "$as_me:$LINENO: result: no" >&5
 $as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
+	grep -q -E '[[:space:]]mount_nodev[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in fs/super.c; do
+			grep -q -E "EXPORT_SYMBOL.*(mount_nodev)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
-	rm -Rf build
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+		else :
 
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MOUNT_NODEV 1
+_ACEOF
 
 
-	if test "$LINUX_OBJ" != "$LINUX"; then
+		fi
+	fi
 
-		KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$LINUX_OBJ"
 
-fi
 
+	{ $as_echo "$as_me:$LINENO: checking whether super_block has s_shrink" >&5
+$as_echo_n "checking whether super_block has s_shrink... " >&6; }
 
 
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-			KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_UNUSED_BUT_SET_VARIABLE"
-	KERNELCPPFLAGS="$KERNELCPPFLAGS -DHAVE_SPL -D_KERNEL"
-	KERNELCPPFLAGS="$KERNELCPPFLAGS -DTEXT_DOMAIN=\\\"zfs-linux-kernel\\\""
 
+		#include <linux/fs.h>
 
- ;;
-		user)
+int
+main (void)
+{
 
+		int (*shrink)(struct shrinker *, struct shrink_control *sc)
+			__attribute__ ((unused)) = NULL;
+		struct super_block sb __attribute__ ((unused)) = {
+			.s_shrink.shrink = shrink,
+			.s_shrink.seeks = DEFAULT_SEEKS,
+			.s_shrink.batch = 0,
+		};
 
-# Check whether --with-udevdir was given.
-if test "${with_udevdir+set}" = set; then
-  withval=$with_udevdir; udevdir=$withval
-else
-  udevdir='${exec_prefix}/lib/udev'
-fi
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SHRINK 1
+_ACEOF
 
 
 
-# Check whether --with-udevruledir was given.
-if test "${with_udevruledir+set}" = set; then
-  withval=$with_udevruledir; udevruledir=$withval
 else
-  udevruledir='${udevdir}/rules.d'
-fi
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
 
 
+fi
 
+	rm -Rf build
 
-	{ $as_echo "$as_me:$LINENO: checking for target asm dir" >&5
-$as_echo_n "checking for target asm dir... " >&6; }
-	TARGET_ARCH=`echo ${target_cpu} | sed -e s/i.86/i386/`
 
-	case $TARGET_ARCH in
-	i386|x86_64)
-		TARGET_ASM_DIR=asm-${TARGET_ARCH}
-		;;
-	*)
-		TARGET_ASM_DIR=asm-generic
-		;;
-	esac
 
 
-	{ $as_echo "$as_me:$LINENO: result: $TARGET_ASM_DIR" >&5
-$as_echo "$TARGET_ASM_DIR" >&6; }
+	{ $as_echo "$as_me:$LINENO: checking whether super_block has s_bdi" >&5
+$as_echo_n "checking whether super_block has s_bdi... " >&6; }
 
 
-	{ $as_echo "$as_me:$LINENO: checking for ioctl()" >&5
-$as_echo_n "checking for ioctl()... " >&6; }
-	cat >conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.c
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#include <unistd.h>
 
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "ioctl" >/dev/null 2>&1; then
-  is_unistd=yes
-else
-  is_unistd=no
-fi
-rm -f conftest*
 
-	cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		struct super_block sb __attribute__ ((unused));
+		sb.s_bdi = NULL;
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_BDI 1
+_ACEOF
+
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+	rm -Rf build
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking whether bdi_setup_and_register() is available" >&5
+$as_echo_n "checking whether bdi_setup_and_register() is available... " >&6; }
+
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/backing-dev.h>
+
+int
+main (void)
+{
+
+		bdi_setup_and_register(NULL, NULL, 0);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
+fi
+
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]bdi_setup_and_register[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in mm/backing-dev.c; do
+			grep -q -E "EXPORT_SYMBOL.*(bdi_setup_and_register)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_BDI_SETUP_AND_REGISTER 1
+_ACEOF
+
+
+		fi
+	fi
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking whether set_nlink() is available" >&5
+$as_echo_n "checking whether set_nlink() is available... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		struct inode node;
+		unsigned int link = 0;
+		(void) set_nlink(&node, link);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SET_NLINK 1
+_ACEOF
+
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+	rm -Rf build
+
+
+
+
+	if test "$LINUX_OBJ" != "$LINUX"; then
+
+		KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$LINUX_OBJ"
+
+fi
+
+
+
+
+			KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_UNUSED_BUT_SET_VARIABLE"
+	KERNELCPPFLAGS="$KERNELCPPFLAGS -DHAVE_SPL -D_KERNEL"
+	KERNELCPPFLAGS="$KERNELCPPFLAGS -DTEXT_DOMAIN=\\\"zfs-linux-kernel\\\""
+
+
+ ;;
+		user)
+
+
+# Check whether --with-udevdir was given.
+if test "${with_udevdir+set}" = set; then
+  withval=$with_udevdir; udevdir=$withval
+else
+  udevdir='${exec_prefix}/lib/udev'
+fi
+
+
+
+# Check whether --with-udevruledir was given.
+if test "${with_udevruledir+set}" = set; then
+  withval=$with_udevruledir; udevruledir=$withval
+else
+  udevruledir='${udevdir}/rules.d'
+fi
+
+
+
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking for target asm dir" >&5
+$as_echo_n "checking for target asm dir... " >&6; }
+	TARGET_ARCH=`echo ${target_cpu} | sed -e s/i.86/i386/`
+
+	case $TARGET_ARCH in
+	i386|x86_64)
+		TARGET_ASM_DIR=asm-${TARGET_ARCH}
+		;;
+	*)
+		TARGET_ASM_DIR=asm-generic
+		;;
+	esac
+
+
+	{ $as_echo "$as_me:$LINENO: result: $TARGET_ASM_DIR" >&5
+$as_echo "$TARGET_ASM_DIR" >&6; }
+
+
+	{ $as_echo "$as_me:$LINENO: checking for ioctl()" >&5
+$as_echo_n "checking for ioctl()... " >&6; }
+	cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <unistd.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "ioctl" >/dev/null 2>&1; then
+  is_unistd=yes
+else
+  is_unistd=no
+fi
+rm -f conftest*
+
+	cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
@@ -18842,7 +19637,7 @@ elif test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}; then
 
 elif test -d ${kernelsrc}-obj/${target_cpu}/default; then
 
-		        kernelbuild=${kernelsrc}-obj/${target_cpu}/default
+			kernelbuild=${kernelsrc}-obj/${target_cpu}/default
 
 elif test -d `dirname ${kernelsrc}`/build-${target_cpu}; then
 
@@ -18902,9 +19697,19 @@ else
 
 		{ $as_echo "$as_me:$LINENO: result: Not found" >&5
 $as_echo "Not found" >&6; }
-		{ { $as_echo "$as_me:$LINENO: error: *** Cannot find UTS_RELEASE definition." >&5
+		if test "x$enable_linux_builtin" != xyes; then
+			{ { $as_echo "$as_me:$LINENO: error: *** Cannot find UTS_RELEASE definition." >&5
 $as_echo "$as_me: error: *** Cannot find UTS_RELEASE definition." >&2;}
    { (exit 1); exit 1; }; }
+		else
+			{ { $as_echo "$as_me:$LINENO: error:
+	*** Cannot find UTS_RELEASE definition.
+	*** Please run 'make prepare' inside the kernel source tree." >&5
+$as_echo "$as_me: error:
+	*** Cannot find UTS_RELEASE definition.
+	*** Please run 'make prepare' inside the kernel source tree." >&2;}
+   { (exit 1); exit 1; }; }
+		fi
 
 fi
 
@@ -18924,7 +19729,7 @@ $as_echo "$kernsrcver" >&6; }
 	modpost=$LINUX/scripts/Makefile.modpost
 	{ $as_echo "$as_me:$LINENO: checking kernel file name for module symbols" >&5
 $as_echo_n "checking kernel file name for module symbols... " >&6; }
-	if test -f "$modpost"; then
+	if test "x$enable_linux_builtin" != xyes -a -f "$modpost"; then
 
 		if grep -q Modules.symvers $modpost; then
 
@@ -19113,6 +19918,76 @@ $as_echo "$SPL_SYMBOLS" >&6; }
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether modules can be built" >&5
+$as_echo_n "checking whether modules can be built... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+		if test "x$enable_linux_builtin" != xyes; then
+			{ { $as_echo "$as_me:$LINENO: error: *** Unable to build an empty module." >&5
+$as_echo "$as_me: error: *** Unable to build an empty module." >&2;}
+   { (exit 1); exit 1; }; }
+		else
+			{ { $as_echo "$as_me:$LINENO: error:
+	*** Unable to build an empty module.
+	*** Please run 'make scripts' inside the kernel source tree." >&5
+$as_echo "$as_me: error:
+	*** Unable to build an empty module.
+	*** Please run 'make scripts' inside the kernel source tree." >&2;}
+   { (exit 1); exit 1; }; }
+		fi
+
+
+
+fi
+
+	rm -Rf build
+
+
+
 
 
 	if test "$ZFS_META_LICENSE" = GPL; then
@@ -19157,9 +20032,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19229,9 +20106,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19281,9 +20160,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19390,9 +20271,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19455,9 +20338,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19521,9 +20406,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19587,9 +20474,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19624,35 +20513,101 @@ fi
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether blkdev_get_by_path() is available" >&5
+$as_echo_n "checking whether blkdev_get_by_path() is available... " >&6; }
+
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		blkdev_get_by_path(NULL, 0, NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
+fi
+
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol blkdev_get_by_path is exported" >&5
-$as_echo_n "checking whether symbol blkdev_get_by_path is exported... " >&6; }
 	grep -q -E '[[:space:]]blkdev_get_by_path[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(blkdev_get_by_path)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(blkdev_get_by_path)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
@@ -19660,63 +20615,103 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether open_bdev_exclusive() is available" >&5
+$as_echo_n "checking whether open_bdev_exclusive() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BLKDEV_GET_BY_PATH 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
 _ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		open_bdev_exclusive(NULL, 0, NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
 
 fi
 
+	rm -Rf build
+
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol open_bdev_exclusive is exported" >&5
-$as_echo_n "checking whether symbol open_bdev_exclusive is exported... " >&6; }
 	grep -q -E '[[:space:]]open_bdev_exclusive[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(open_bdev_exclusive)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(open_bdev_exclusive)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_OPEN_BDEV_EXCLUSIVE 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -19726,8 +20721,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -19759,9 +20754,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19827,9 +20824,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19895,9 +20894,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -19961,9 +20962,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20029,9 +21032,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20095,9 +21100,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20165,9 +21172,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20232,9 +21241,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20298,9 +21309,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20364,9 +21377,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20432,9 +21447,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20500,9 +21517,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20569,9 +21588,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20637,9 +21658,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20706,9 +21729,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20775,9 +21800,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20845,9 +21872,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20915,9 +21944,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -20984,9 +22015,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21053,9 +22086,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21122,9 +22157,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21192,9 +22229,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21261,9 +22300,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21329,9 +22370,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21398,9 +22441,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21467,9 +22512,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21536,9 +22583,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21574,46 +22623,99 @@ fi
 
 	EXTRA_KCFLAGS="$tmp_flags"
 
+	{ $as_echo "$as_me:$LINENO: checking whether get_gendisk() is available" >&5
+$as_echo_n "checking whether get_gendisk() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol get_gendisk is exported" >&5
-$as_echo_n "checking whether symbol get_gendisk is exported... " >&6; }
-	grep -q -E '[[:space:]]get_gendisk[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in block/genhd.c; do
-			grep -q -E "EXPORT_SYMBOL.*(get_gendisk)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/genhd.h>
 
+int
+main (void)
+{
 
-else
+		get_gendisk(0, NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GET_GENDISK 1
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
 
-else
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]get_gendisk[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in block/genhd.c; do
+			grep -q -E "EXPORT_SYMBOL.*(get_gendisk)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -21623,8 +22725,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -21658,9 +22760,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21729,9 +22833,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21807,9 +22913,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21876,9 +22984,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -21946,9 +23056,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22016,9 +23128,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22085,9 +23199,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22149,9 +23265,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22213,9 +23331,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22277,9 +23397,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22341,9 +23463,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22405,9 +23529,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22472,9 +23598,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22541,9 +23669,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22610,9 +23740,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22679,9 +23811,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22747,9 +23881,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22815,9 +23951,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22885,9 +24023,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -22954,9 +24094,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23022,9 +24164,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23053,15 +24197,192 @@ $as_echo "no" >&6; }
 
 
 
-fi
+fi
+
+	rm -Rf build
+
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking whether eops->encode_fh() wants inode" >&5
+$as_echo_n "checking whether eops->encode_fh() wants inode... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/exportfs.h>
+		int encode_fh(struct inode *inode, __u32 *fh, int *max_len,
+		              struct inode *parent) { return 0; }
+		static struct export_operations eops __attribute__ ((unused))={
+			.encode_fh = encode_fh,
+		};
+
+int
+main (void)
+{
+
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ENCODE_FH_WITH_INODE 1
+_ACEOF
+
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+	rm -Rf build
+
+
+
+	{ $as_echo "$as_me:$LINENO: checking whether clear_inode() is available" >&5
+$as_echo_n "checking whether clear_inode() is available... " >&6; }
+
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		clear_inode(NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
+fi
+
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]clear_inode[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in fs/inode.c; do
+			grep -q -E "EXPORT_SYMBOL.*(clear_inode)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
+
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_CLEAR_INODE 1
+_ACEOF
 
-	rm -Rf build
 
+		fi
+	fi
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether insert_inode_locked() is available" >&5
+$as_echo_n "checking whether insert_inode_locked() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether eops->encode_fh() wants inode" >&5
-$as_echo_n "checking whether eops->encode_fh() wants inode... " >&6; }
 
 
 cat confdefs.h - <<_ACEOF >conftest.c
@@ -23072,17 +24393,13 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 
-		#include <linux/exportfs.h>
-		int encode_fh(struct inode *inode, __u32 *fh, int *max_len,
-		              struct inode *parent) { return 0; }
-		static struct export_operations eops __attribute__ ((unused))={
-			.encode_fh = encode_fh,
-		};
+		#include <linux/fs.h>
 
 int
 main (void)
 {
 
+		insert_inode_locked(NULL);
 
   ;
   return 0;
@@ -23091,9 +24408,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23104,22 +24423,11 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_ENCODE_FH_WITH_INODE 1
-_ACEOF
-
-
+  rc=0
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
-
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
+ rc=1
 
 
 fi
@@ -23127,142 +24435,152 @@ fi
 	rm -Rf build
 
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol clear_inode is exported" >&5
-$as_echo_n "checking whether symbol clear_inode is exported... " >&6; }
-	grep -q -E '[[:space:]]clear_inode[[:space:]]' \
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/inode.c; do
-			grep -q -E "EXPORT_SYMBOL.*(clear_inode)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(insert_inode_locked)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CLEAR_INODE 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
-#define HAVE_CLEAR_INODE 1
+#define HAVE_INSERT_INODE_LOCKED 1
 _ACEOF
 
 
-fi
-
-
+		fi
+	fi
 
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol insert_inode_locked is exported" >&5
-$as_echo_n "checking whether symbol insert_inode_locked is exported... " >&6; }
-	grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
+	{ $as_echo "$as_me:$LINENO: checking whether d_make_root() is available" >&5
+$as_echo_n "checking whether d_make_root() is available... " >&6; }
 
-		export=0
-		for file in fs/inode.c; do
-			grep -q -E "EXPORT_SYMBOL.*(insert_inode_locked)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/dcache.h>
 
+int
+main (void)
+{
 
-else
+		d_make_root(NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_INSERT_INODE_LOCKED 1
 _ACEOF
 
 
-fi
-
-
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
 else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_INSERT_INODE_LOCKED 1
-_ACEOF
+fi
 
+	rm -Rf build
 
-fi
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol d_make_root is exported" >&5
-$as_echo_n "checking whether symbol d_make_root is exported... " >&6; }
 	grep -q -E '[[:space:]]d_make_root[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/dcache.c; do
-			grep -q -E "EXPORT_SYMBOL.*(d_make_root)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(d_make_root)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
@@ -23270,52 +24588,105 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether d_obtain_alias() is available" >&5
+$as_echo_n "checking whether d_obtain_alias() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_MAKE_ROOT 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/dcache.h>
+
+int
+main (void)
+{
+
+		d_obtain_alias(NULL);
+
+  ;
+  return 0;
+}
+
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
+
 
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol d_obtain_alias is exported" >&5
-$as_echo_n "checking whether symbol d_obtain_alias is exported... " >&6; }
 	grep -q -E '[[:space:]]d_obtain_alias[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/dcache.c; do
-			grep -q -E "EXPORT_SYMBOL.*(d_obtain_alias)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(d_obtain_alias)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
@@ -23323,52 +24694,105 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether check_disk_size_change() is available" >&5
+$as_echo_n "checking whether check_disk_size_change() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_D_OBTAIN_ALIAS 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		check_disk_size_change(NULL, NULL);
+
+  ;
+  return 0;
+}
+
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol check_disk_size_change is exported" >&5
-$as_echo_n "checking whether symbol check_disk_size_change is exported... " >&6; }
 	grep -q -E '[[:space:]]check_disk_size_change[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in fs/block_dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(check_disk_size_change)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(check_disk_size_change)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
 
 cat >>confdefs.h <<\_ACEOF
@@ -23376,63 +24800,103 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+		fi
+	fi
 
 
-else
+	{ $as_echo "$as_me:$LINENO: checking whether truncate_setsize() is available" >&5
+$as_echo_n "checking whether truncate_setsize() is available... " >&6; }
 
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_CHECK_DISK_SIZE_CHANGE 1
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/mm.h>
+
+int
+main (void)
+{
+
+		truncate_setsize(NULL, 0);
+
+  ;
+  return 0;
+}
+
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
+
+
+	if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
+	else
+		if test "x$enable_linux_builtin" != xyes; then
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol truncate_setsize is exported" >&5
-$as_echo_n "checking whether symbol truncate_setsize is exported... " >&6; }
 	grep -q -E '[[:space:]]truncate_setsize[[:space:]]' \
 		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
 	rc=$?
 	if test $rc -ne 0; then
-
 		export=0
 		for file in mm/truncate.c; do
-			grep -q -E "EXPORT_SYMBOL.*(truncate_setsize)" "$LINUX/$file" 2>/dev/null
+			grep -q -E "EXPORT_SYMBOL.*(truncate_setsize)" \
+				"$LINUX/$file" 2>/dev/null
 			rc=$?
 			if test $rc -eq 0; then
-
 				export=1
 				break;
-
-fi
-
+			fi
 		done
-		if test $export -eq 0; then
-
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-else
-
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_TRUNCATE_SETSIZE 1
-_ACEOF
-
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
 
-fi
+		fi
+		if test $rc -ne 0; then :
 
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
 
-else
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -23442,8 +24906,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -23483,9 +24947,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23556,9 +25022,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23594,46 +25062,99 @@ fi
 
 	EXTRA_KCFLAGS="$tmp_flags"
 
+	{ $as_echo "$as_me:$LINENO: checking whether mount_nodev() is available" >&5
+$as_echo_n "checking whether mount_nodev() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol mount_nodev is exported" >&5
-$as_echo_n "checking whether symbol mount_nodev is exported... " >&6; }
-	grep -q -E '[[:space:]]mount_nodev[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in fs/super.c; do
-			grep -q -E "EXPORT_SYMBOL.*(mount_nodev)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/fs.h>
 
+int
+main (void)
+{
 
-else
+		mount_nodev(NULL, 0, NULL, NULL);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_MOUNT_NODEV 1
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
 
-else
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]mount_nodev[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in fs/super.c; do
+			grep -q -E "EXPORT_SYMBOL.*(mount_nodev)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -23643,8 +25164,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -23681,9 +25202,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23748,9 +25271,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -23785,46 +25310,99 @@ fi
 
 
 
+	{ $as_echo "$as_me:$LINENO: checking whether bdi_setup_and_register() is available" >&5
+$as_echo_n "checking whether bdi_setup_and_register() is available... " >&6; }
 
-	{ $as_echo "$as_me:$LINENO: checking whether symbol bdi_setup_and_register is exported" >&5
-$as_echo_n "checking whether symbol bdi_setup_and_register is exported... " >&6; }
-	grep -q -E '[[:space:]]bdi_setup_and_register[[:space:]]' \
-		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-
-		export=0
-		for file in mm/backing-dev.c; do
-			grep -q -E "EXPORT_SYMBOL.*(bdi_setup_and_register)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-			if test $rc -eq 0; then
 
-				export=1
-				break;
 
-fi
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
 
-		done
-		if test $export -eq 0; then
 
-			{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
+		#include <linux/backing-dev.h>
 
+int
+main (void)
+{
 
-else
+		bdi_setup_and_register(NULL, NULL, 0);
 
-			{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
+  ;
+  return 0;
+}
 
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BDI_SETUP_AND_REGISTER 1
 _ACEOF
 
 
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+	echo "obj-m := conftest.o" >build/Makefile
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  rc=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ rc=1
+
+
 fi
 
+	rm -Rf build
 
-else
+
+	if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+	else
+		if test "x$enable_linux_builtin" != xyes; then
+
+	grep -q -E '[[:space:]]bdi_setup_and_register[[:space:]]' \
+		$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
+	rc=$?
+	if test $rc -ne 0; then
+		export=0
+		for file in mm/backing-dev.c; do
+			grep -q -E "EXPORT_SYMBOL.*(bdi_setup_and_register)" \
+				"$LINUX/$file" 2>/dev/null
+			rc=$?
+			if test $rc -eq 0; then
+				export=1
+				break;
+			fi
+		done
+		if test $export -eq 0; then :
+			rc=1
+		else :
+			rc=0
+		fi
+	else :
+		rc=0
+	fi
+
+		fi
+		if test $rc -ne 0; then :
+
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+		else :
 
 		{ $as_echo "$as_me:$LINENO: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -23834,8 +25412,8 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
-
+		fi
+	fi
 
 
 
@@ -23868,9 +25446,11 @@ main (void)
 _ACEOF
 
 
-	rm -Rf build && mkdir -p build
+	rm -Rf build && mkdir -p build && touch build/conftest.mod.c
 	echo "obj-m := conftest.o" >build/Makefile
-	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+	modpost_flag=''
+	test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+	if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -25484,8 +27064,7 @@ $as_echo "$as_me: error: Bad value \"$ZFS_CONFIG\" for --with-config,
    { (exit 1); exit 1; }; } ;;
 	esac
 
-	 if test "$ZFS_CONFIG" = user ||
-	               test "$ZFS_CONFIG" = all; then
+	 if test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all; then
   CONFIG_USER_TRUE=
   CONFIG_USER_FALSE='#'
 else
@@ -25493,8 +27072,8 @@ else
   CONFIG_USER_FALSE=
 fi
 
-	 if test "$ZFS_CONFIG" = kernel ||
-	               test "$ZFS_CONFIG" = all; then
+	 if test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all &&
+		       test "x$enable_linux_builtin" != xyes ; then
   CONFIG_KERNEL_TRUE=
   CONFIG_KERNEL_FALSE='#'
 else
diff --git a/copy-builtin b/copy-builtin
new file mode 100755
index 000000000000..a053fd8a37aa
--- /dev/null
+++ b/copy-builtin
@@ -0,0 +1,121 @@
+#!/bin/bash
+
+set -e
+
+usage()
+{
+	echo "usage: $0 <kernel source tree>" >&2
+	exit 1
+}
+
+[ "$#" -eq 1 ] || usage
+KERNEL_DIR="$(readlink --canonicalize-existing "$1")"
+
+MODULES=()
+for MODULE_DIR in module/*
+do
+	[ -d "$MODULE_DIR" ] || continue
+	MODULES+=("${MODULE_DIR##*/}")
+done
+
+if ! [ -e 'zfs_config.h' ]
+then
+	echo >&2
+	echo "    $0: you did not run configure, or you're not in the ZFS source directory." >&2
+	echo "    $0: run configure with --with-linux=$KERNEL_DIR and --enable-linux-builtin." >&2
+	echo >&2
+	exit 1
+fi
+
+make clean || true
+
+rm -rf "$KERNEL_DIR/include/zfs" "$KERNEL_DIR/fs/zfs"
+cp --recursive include "$KERNEL_DIR/include/zfs"
+cp --recursive module "$KERNEL_DIR/fs/zfs"
+cp zfs_config.h "$KERNEL_DIR/"
+
+adjust_obj_paths()
+{
+	local FILE="$1"
+	local LINE OBJPATH
+
+	while IFS='' read -r LINE
+	do
+		OBJPATH="${LINE#\$(MODULE)-objs += }"
+		if [ "$OBJPATH" = "$LINE" ]
+		then
+			echo "$LINE"
+		else
+			echo "\$(MODULE)-objs += ${OBJPATH##*/}"
+		fi
+	done < "$FILE" > "$FILE.new"
+	mv "$FILE.new" "$FILE"
+}
+
+for MODULE in "${MODULES[@]}"
+do
+	adjust_obj_paths "$KERNEL_DIR/fs/zfs/$MODULE/Makefile"
+done
+
+cat > "$KERNEL_DIR/fs/zfs/Kconfig" <<"EOF"
+config ZFS
+	tristate "ZFS"
+	depends on SPL
+	help
+	  This is the ZFS filesystem from the ZFS On Linux project.
+
+	  See http://zfsonlinux.org/
+
+	  To compile this file system support as a module, choose M here.
+
+	  If unsure, say N.
+EOF
+
+{
+	cat <<-"EOF"
+	ZFS_MODULE_CFLAGS  = -I$(srctree)/include/zfs -I$(srctree)/include/spl 
+	ZFS_MODULE_CFLAGS += -include $(srctree)/spl_config.h -include $(srctree)/zfs_config.h
+	export ZFS_MODULE_CFLAGS
+
+	obj-$(CONFIG_ZFS) :=
+	EOF
+
+	for MODULE in "${MODULES[@]}"
+	do
+		echo 'obj-$(CONFIG_ZFS) += ' "$MODULE/"
+	done
+} > "$KERNEL_DIR/fs/zfs/Kbuild"
+
+add_after()
+{
+	local FILE="$1"
+	local MARKER="$2"
+	local NEW="$3"
+	local LINE
+
+	while IFS='' read -r LINE
+	do
+		echo "$LINE"
+
+		if [ -n "$MARKER" -a "$LINE" = "$MARKER" ]
+		then
+			echo "$NEW"
+			MARKER=''
+			if IFS='' read -r LINE
+			then
+				[ "$LINE" != "$NEW" ] && echo "$LINE"
+			fi
+		fi
+	done < "$FILE" > "$FILE.new"
+
+	mv "$FILE.new" "$FILE"
+}
+
+add_after "$KERNEL_DIR/fs/Kconfig" 'if BLOCK' 'source "fs/zfs/Kconfig"'
+add_after "$KERNEL_DIR/fs/Makefile" 'endif' 'obj-$(CONFIG_ZFS) += zfs/'
+
+echo >&2
+echo "    $0: done." >&2
+echo "    $0: now you can build the kernel with ZFS support." >&2
+echo "    $0: make sure you enable ZFS support (CONFIG_ZFS) before building." >&2
+echo >&2
diff --git a/lib/libzfs/libzfs_util.c b/lib/libzfs/libzfs_util.c
index 982a6f05fd97..5618a5cd307f 100644
--- a/lib/libzfs/libzfs_util.c
+++ b/lib/libzfs/libzfs_util.c
@@ -608,27 +608,13 @@ libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
 static int
 libzfs_module_loaded(const char *module)
 {
-	FILE *f;
-	int result = 0;
-	char name[256];
+	const char path_prefix[] = "/sys/module/";
+	char path[256];
 
-	f = fopen("/proc/modules", "r");
-	if (f == NULL)
-		return -1;
+	memcpy(path, path_prefix, sizeof(path_prefix) - 1);
+	strcpy(path + sizeof(path_prefix) - 1, module);
 
-	while (fgets(name, sizeof(name), f)) {
-		char *c = strchr(name, ' ');
-		if (!c)
-			continue;
-		*c = 0;
-		if (strcmp(module, name) == 0) {
-			result = 1;
-			break;
-		}
-	}
-	fclose(f);
-
-	return result;
+	return (access(path, F_OK) == 0);
 }
 
 int
diff --git a/module/Makefile.in b/module/Makefile.in
index 50cbb5891582..c69b8a35560e 100644
--- a/module/Makefile.in
+++ b/module/Makefile.in
@@ -5,6 +5,11 @@ subdir-m += zcommon
 subdir-m += zfs
 subdir-m += zpios
 
+ZFS_MODULE_CFLAGS += -include @SPL_OBJ@/spl_config.h
+ZFS_MODULE_CFLAGS += -include @abs_top_builddir@/zfs_config.h
+ZFS_MODULE_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+export ZFS_MODULE_CFLAGS
+
 modules:
 	@# Make the exported SPL symbols available to these modules.
 	@# They may be in the root of SPL_OBJ when building against
@@ -21,7 +26,7 @@ modules:
 		"*** - @SPL_OBJ@/module/@SPL_SYMBOLS@\n"; \
 		exit 1; \
 	fi
-	$(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ $@
+	$(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ CONFIG_ZFS=m $@
 
 clean:
 	@# Only cleanup the kernel build directories when CONFIG_KERNEL
diff --git a/module/avl/Makefile.in b/module/avl/Makefile.in
index efa414883283..27f9e4af4993 100644
--- a/module/avl/Makefile.in
+++ b/module/avl/Makefile.in
@@ -1,10 +1,7 @@
 MODULE := zavl
 
-EXTRA_CFLAGS  = @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/avl/avl.o
diff --git a/module/nvpair/Makefile.in b/module/nvpair/Makefile.in
index 71c748e5fcc3..b53381f6aa1b 100644
--- a/module/nvpair/Makefile.in
+++ b/module/nvpair/Makefile.in
@@ -1,11 +1,8 @@
 MODULE := znvpair
 
-EXTRA_CFLAGS  = @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/nvpair/nvpair.o
 $(MODULE)-objs += @top_srcdir@/module/nvpair/nvpair_alloc_spl.o
diff --git a/module/unicode/Makefile.in b/module/unicode/Makefile.in
index 14a46b270b04..226e23baa8d8 100644
--- a/module/unicode/Makefile.in
+++ b/module/unicode/Makefile.in
@@ -1,11 +1,8 @@
 MODULE := zunicode
 
-EXTRA_CFLAGS  = @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/unicode/u8_textprep.o
 $(MODULE)-objs += @top_srcdir@/module/unicode/uconv.o
diff --git a/module/zcommon/Makefile.in b/module/zcommon/Makefile.in
index e564b77b4926..d4f5ba7ec70e 100644
--- a/module/zcommon/Makefile.in
+++ b/module/zcommon/Makefile.in
@@ -1,11 +1,8 @@
 MODULE := zcommon
 
-EXTRA_CFLAGS  = @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/zcommon/zfs_deleg.o
 $(MODULE)-objs += @top_srcdir@/module/zcommon/zfs_prop.o
diff --git a/module/zfs/Makefile.in b/module/zfs/Makefile.in
index 5ec75a03af9a..98576d1d2ed5 100644
--- a/module/zfs/Makefile.in
+++ b/module/zfs/Makefile.in
@@ -1,11 +1,8 @@
 MODULE := zfs
 
-EXTRA_CFLAGS += @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/zfs/arc.o
 $(MODULE)-objs += @top_srcdir@/module/zfs/bplist.o
diff --git a/module/zpios/Makefile.in b/module/zpios/Makefile.in
index 93a89a91416e..437bf2287637 100644
--- a/module/zpios/Makefile.in
+++ b/module/zpios/Makefile.in
@@ -1,10 +1,7 @@
 MODULE := zpios
 
-EXTRA_CFLAGS  = @KERNELCPPFLAGS@
-EXTRA_CFLAGS += -include @SPL_OBJ@/spl_config.h
-EXTRA_CFLAGS += -include @abs_top_builddir@/zfs_config.h
-EXTRA_CFLAGS += -I@abs_top_srcdir@/include -I@SPL@/include -I@SPL@
+EXTRA_CFLAGS = $(ZFS_MODULE_CFLAGS) @KERNELCPPFLAGS@
 
-obj-m := $(MODULE).o
+obj-$(CONFIG_ZFS) := $(MODULE).o
 
 $(MODULE)-objs += @top_srcdir@/module/zpios/pios.o