zfs-kmod-2.0.0-r1.ebuild to incorporate

openzfs/zfs#11309 and allow
building against rt-sources

sys-fs/zfs-kmod/Manifest

@@ -1 +1,4 @@
+AUX rm-rw_semaphore.wait_lock-config-check.patch 1983 BLAKE2B d359d0290931be19ee30073a15e348ada575e0192281bfaed2c3147e4c3e545351fe0b7ff888d47ac4107f5e9926e5b56fda870775dcd04fceb38b24ce29210f SHA512 67d74d82ebe46b1638c0bcbbe814372d435830f53f7d2a0c59c0edf17b4de32b7ef6cbf19b5a6828cc772740fde7a2ddc365ef6748bf2ea1e8e04f8478dfc0af
+DIST zfs-2.0.0.tar.gz 12989903 BLAKE2B 2961b97aa6736af9b4a2bc968d1488f49ec0c0fd7bb22b6bc015047239279efd2d48f8d7c593f9b467ac9d40f99d67363ab551bdfaf1dd71335c37c48c759875 SHA512 2706ae1aa54b882b272502e7a46e57ff41f9db9b123e8cd5dafbdd7f61975d05538167016f943804145d22aa018a1f11c884f692dc3992b28c24eac08112650f
+EBUILD zfs-kmod-2.0.0-r1.ebuild 4336 BLAKE2B 013860135009ec933778a18f6d93cd4f368f723fa55c190e4b840873769638592b5bb92f84eaec59ee56e73b9cb2ca003449efff8b39c82675890935740fca6c SHA512 8f8e91f6f14e67fee682a35c2e6bd2983b62d928097086902e3c252f38ad2e16995510b208b34c8d0894efd80081e8d3c1ffa40d729c2cd96a58c0e6406066e6
 EBUILD zfs-kmod-9999.ebuild 4113 BLAKE2B f42f666d8f9b1a91d7f44ee34ac7699a25c2a16e4c5843f780c65b651b81099260d27249b02a4e506eb945b57b0b140cc3b1881bce2de2ddee82d414e6d0b5c0 SHA512 84f7985ff480a3dbfddd9044ba600392d1f394c7749c80ff1cdb01232c6304a876be84eac39a8622645d38aeed4eefc8380eed8f3517aa7461941ef5db414f13

sys-fs/zfs-kmod/files/rm-rw_semaphore.wait_lock-config-check.patch

@@ -0,0 +1,66 @@
+From 99e1ac03846880675b9d7a7ca475a1410426a4d6 Mon Sep 17 00:00:00 2001
+From: Orivej Desh <[email protected]>
+Date: Tue, 8 Dec 2020 02:21:01 +0000
+Subject: [PATCH] Delete rw_semaphore.wait_lock configure check
+
+Last use of wait_lock was removed in "Linux 5.3 compat: retire
+rw_tryupgrade()" (e7a99dab2b065ac2f8736a65d1b226d21754d771).
+
+Fixes the issue reported in
+https://github.com/openzfs/zfs/issues/11097#issuecomment-714532367
+
+Signed-off-by: Orivej Desh <[email protected]>
+---
+ config/kernel-rwsem.m4 | 28 ----------------------------
+ 1 file changed, 28 deletions(-)
+
+diff --git a/config/kernel-rwsem.m4 b/config/kernel-rwsem.m4
+index 824f4a3ffd4..d3a64a8efa1 100644
+--- a/config/kernel-rwsem.m4
++++ b/config/kernel-rwsem.m4
+@@ -1,29 +1,3 @@
+-dnl #
+-dnl # 3.1 API Change
+-dnl #
+-dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to
+-dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1.
+-dnl #
+-AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW], [
+-	ZFS_LINUX_TEST_SRC([rwsem_spinlock_is_raw], [
+-		#include <linux/rwsem.h>
+-	],[
+-		struct rw_semaphore dummy_semaphore __attribute__ ((unused));
+-		raw_spinlock_t dummy_lock __attribute__ ((unused)) =
+-		    __RAW_SPIN_LOCK_INITIALIZER(dummy_lock);
+-		dummy_semaphore.wait_lock = dummy_lock;
+-	])
+-])
+-
+-AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [
+-	AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
+-	ZFS_LINUX_TEST_RESULT([rwsem_spinlock_is_raw], [
+-		AC_MSG_RESULT(yes)
+-	],[
+-		ZFS_LINUX_TEST_ERROR([rwsem_spinlock_is_raw])
+-	])
+-])
+-
+ dnl #
+ dnl # 3.16 API Change
+ dnl #
+@@ -76,13 +50,11 @@ AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [
+ ])
+
+ AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM], [
+-	ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW
+ 	ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY
+ 	ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT
+ ])
+
+ AC_DEFUN([ZFS_AC_KERNEL_RWSEM], [
+-	ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW
+ 	ZFS_AC_KERNEL_RWSEM_ACTIVITY
+ 	ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT
+ ])
+
+

sys-fs/zfs-kmod/zfs-kmod-2.0.0-r1.ebuild

@@ -0,0 +1,174 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools flag-o-matic linux-mod toolchain-funcs
+
+DESCRIPTION="Linux ZFS kernel module for sys-fs/zfs"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	MY_PV="2.0.0"
+	SRC_URI="https://github.com/openzfs/zfs/releases/download/zfs-${MY_PV}/zfs-${MY_PV}.tar.gz"
+	KEYWORDS="~amd64 ~arm64 ~ppc64"
+	S="${WORKDIR}/zfs-${PV%_rc?}"
+	ZFS_KERNEL_COMPAT="5.9"
+fi
+
+LICENSE="CDDL MIT debug? ( GPL-2+ )"
+SLOT="0"
+IUSE="custom-cflags debug +rootfs"
+
+DEPEND=""
+
+RDEPEND="${DEPEND}
+	!sys-kernel/spl
+"
+
+BDEPEND="
+	dev-lang/perl
+	virtual/awk
+"
+
+RESTRICT="debug? ( strip ) test"
+
+DOCS=( AUTHORS COPYRIGHT META README.md )
+PATCHES=( 
+	"${FILESDIR}/rm-rw_semaphore.wait_lock-config-check.patch"
+ )
+
+pkg_setup() {
+	CONFIG_CHECK="
+		!DEBUG_LOCK_ALLOC
+		EFI_PARTITION
+		MODULES
+		!PAX_KERNEXEC_PLUGIN_METHOD_OR
+		!TRIM_UNUSED_KSYMS
+		ZLIB_DEFLATE
+		ZLIB_INFLATE
+	"
+
+	use debug && CONFIG_CHECK="${CONFIG_CHECK}
+		FRAME_POINTER
+		DEBUG_INFO
+		!DEBUG_INFO_REDUCED
+	"
+
+	use rootfs && \
+		CONFIG_CHECK="${CONFIG_CHECK}
+			BLK_DEV_INITRD
+			DEVTMPFS
+	"
+
+	kernel_is -lt 5 && CONFIG_CHECK="${CONFIG_CHECK} IOSCHED_NOOP"
+
+	if [[ ${PV} != "9999" ]]; then
+		local kv_major_max kv_minor_max zcompat
+		zcompat="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+		kv_major_max="${zcompat%%.*}"
+		zcompat="${zcompat#*.}"
+		kv_minor_max="${zcompat%%.*}"
+		kernel_is -le "${kv_major_max}" "${kv_minor_max}" || die \
+			"Linux ${kv_major_max}.${kv_minor_max} is the latest supported version"
+
+	fi
+
+	kernel_is -ge 3 10 || die "Linux 3.10 or newer required"
+
+	linux-mod_pkg_setup
+}
+
+src_prepare() {
+	default
+	eautoreconf
+	# Set module revision number
+	sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+}
+
+src_configure() {
+	set_arch_to_kernel
+
+	use custom-cflags || strip-flags
+
+	filter-ldflags -Wl,*
+
+	local myconf=(
+		CROSS_COMPILE="${CHOST}-"
+		HOSTCC="$(tc-getBUILD_CC)"
+		--bindir="${EPREFIX}/bin"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=kernel
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		$(use_enable debug)
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	set_arch_to_kernel
+
+	myemakeargs=(
+		CROSS_COMPILE="${CHOST}-"
+		HOSTCC="$(tc-getBUILD_CC)"
+		V=1
+	)
+
+	emake "${myemakeargs[@]}"
+}
+
+src_install() {
+	set_arch_to_kernel
+
+	myemakeargs+=(
+		DEPMOD="/bin/true"
+		DESTDIR="${D}"
+		INSTALL_MOD_PATH="${INSTALL_MOD_PATH:-$EROOT}"
+	)
+
+	emake "${myemakeargs[@]}" install
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	linux-mod_pkg_postinst
+
+	# Remove old modules
+	if [[ -d "${EROOT}/lib/modules/${KV_FULL}/addon/zfs" ]]; then
+		ewarn "${PN} now installs modules in ${EROOT}/lib/modules/${KV_FULL}/extra/zfs"
+		ewarn "Old modules were detected in ${EROOT}/lib/modules/${KV_FULL}/addon/zfs"
+		ewarn "Automatically removing old modules to avoid problems."
+		rm -r "${EROOT}/lib/modules/${KV_FULL}/addon/zfs" || die "Cannot remove modules"
+		rmdir --ignore-fail-on-non-empty "${EROOT}/lib/modules/${KV_FULL}/addon"
+	fi
+
+	if use x86 || use arm; then
+		ewarn "32-bit kernels will likely require increasing vmalloc to"
+		ewarn "at least 256M and decreasing zfs_arc_max to some value less than that."
+	fi
+
+	ewarn "This version of OpenZFS includes support for new feature flags"
+	ewarn "that are incompatible with previous versions. GRUB2 support for"
+	ewarn "/boot with the new feature flags is not yet available."
+	ewarn "Do *NOT* upgrade root pools to use the new feature flags."
+	ewarn "Any new pools will be created with the new feature flags by default"
+	ewarn "and will not be compatible with older versions of ZFSOnLinux. To"
+	ewarn "create a newpool that is backward compatible wih GRUB2, use "
+	ewarn
+	ewarn "zpool create -d -o feature@async_destroy=enabled "
+	ewarn "	-o feature@empty_bpobj=enabled -o feature@lz4_compress=enabled"
+	ewarn "	-o feature@spacemap_histogram=enabled"
+	ewarn "	-o feature@enabled_txg=enabled "
+	ewarn "	-o feature@extensible_dataset=enabled -o feature@bookmarks=enabled"
+	ewarn "	..."
+	ewarn
+	ewarn "GRUB2 support will be updated as soon as either the GRUB2"
+	ewarn "developers do a tag or the Gentoo developers find time to backport"
+	ewarn "support from GRUB2 HEAD."
+}