Factor out non-portable vnode_t usage

On FreeBSD file offset state is maintained in struct file. A given vnode can be referenced from many different struct file *. As a consequence, FreeBSD's SPL doesn't support vn_rdwr with the FAPPEND flag. This change replaces the non-portable vnode_t with the portable file_t in the common code. Signed-off-by: Matt Macy <[email protected]>
openzfs · Nov 19, 2019 · 2727960 · 2727960
1 parent 8221bcf
commit 2727960
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diff --git a/cmd/ztest/ztest.c b/cmd/ztest/ztest.c
@@ -5826,8 +5826,8 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
 			    (long long)vd0->vdev_id, (int)maxfaults);
 
 			if (vf != NULL && ztest_random(3) == 0) {
-				(void) close(vf->vf_vnode->v_fd);
-				vf->vf_vnode->v_fd = -1;
+				(void) close(vf->vf_file->f_fd);
+				vf->vf_file->f_fd = -1;
 			} else if (ztest_random(2) == 0) {
 				vd0->vdev_cant_read = B_TRUE;
 			} else {

diff --git a/include/os/linux/spl/sys/Makefile.am b/include/os/linux/spl/sys/Makefile.am
@@ -19,11 +19,9 @@ KERNEL_H = \
 	$(top_srcdir)/include/os/linux/spl/sys/isa_defs.h \
 	$(top_srcdir)/include/os/linux/spl/sys/kmem_cache.h \
 	$(top_srcdir)/include/os/linux/spl/sys/kmem.h \
-	$(top_srcdir)/include/os/linux/spl/sys/kobj.h \
 	$(top_srcdir)/include/os/linux/spl/sys/kstat.h \
 	$(top_srcdir)/include/os/linux/spl/sys/list.h \
 	$(top_srcdir)/include/os/linux/spl/sys/mod_os.h \
-	$(top_srcdir)/include/os/linux/spl/sys/mode.h \
 	$(top_srcdir)/include/os/linux/spl/sys/mutex.h \
 	$(top_srcdir)/include/os/linux/spl/sys/param.h \
 	$(top_srcdir)/include/os/linux/spl/sys/processor.h \

diff --git a/include/os/linux/spl/sys/kobj.h b/include/os/linux/spl/sys/kobj.h
diff --git a/include/os/linux/spl/sys/mode.h b/include/os/linux/spl/sys/mode.h
diff --git a/include/os/linux/spl/sys/vnode.h b/include/os/linux/spl/sys/vnode.h
@@ -102,23 +102,7 @@
 #define	CREATE_XATTR_DIR	0x04
 #define	ATTR_NOACLCHECK		0x20
 
-typedef enum vtype {
-	VNON		= 0,
-	VREG		= 1,
-	VDIR		= 2,
-	VBLK		= 3,
-	VCHR		= 4,
-	VLNK		= 5,
-	VFIFO		= 6,
-	VDOOR		= 7,
-	VPROC		= 8,
-	VSOCK		= 9,
-	VPORT		= 10,
-	VBAD		= 11
-} vtype_t;
-
 typedef struct vattr {
-	enum vtype	va_type;	/* vnode type */
 	uint32_t	va_mask;	/* attribute bit-mask */
 	ushort_t	va_mode;	/* acc mode */
 	uid_t		va_uid;		/* owner uid */
@@ -133,70 +117,6 @@ typedef struct vattr {
 	dev_t		va_rdev;	/* dev */
 	uint64_t	va_nblocks;	/* space used */
 	uint32_t	va_blksize;	/* block size */
-	uint32_t	va_seq;		/* sequence */
 	struct dentry	*va_dentry;	/* dentry to wire */
 } vattr_t;
-
-typedef struct vnode {
-	struct file	*v_file;
-	kmutex_t	v_lock;		/* protects vnode fields */
-	uint_t		v_flag;		/* vnode flags (see below) */
-	uint_t		v_count;	/* reference count */
-	void		*v_data;	/* private data for fs */
-	struct vfs	*v_vfsp;	/* ptr to containing VFS */
-	struct stdata	*v_stream;	/* associated stream */
-	enum vtype	v_type;		/* vnode type */
-	dev_t		v_rdev;		/* device (VCHR, VBLK) */
-	gfp_t		v_gfp_mask;	/* original mapping gfp mask */
-} vnode_t;
-
-typedef struct vn_file {
-	int		f_fd;		/* linux fd for lookup */
-	struct task_struct *f_task;	/* linux task this fd belongs to */
-	struct file	*f_file;	/* linux file struct */
-	atomic_t	f_ref;		/* ref count */
-	kmutex_t	f_lock;		/* struct lock */
-	loff_t		f_offset;	/* offset */
-	vnode_t		*f_vnode;	/* vnode */
-	struct list_head f_list;	/* list referenced file_t's */
-} file_t;
-
-extern vnode_t *vn_alloc(int flag);
-void vn_free(vnode_t *vp);
-extern vtype_t vn_mode_to_vtype(mode_t);
-extern mode_t vn_vtype_to_mode(vtype_t);
-extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode,
-    vnode_t **vpp, int x1, void *x2);
-extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode,
-    vnode_t **vpp, int x1, void *x2, vnode_t *vp, int fd);
-extern int vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len,
-    offset_t off, uio_seg_t seg, int x1, rlim64_t x2,
-    void *x3, ssize_t *residp);
-extern int vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4);
-extern int vn_seek(vnode_t *vp, offset_t o, offset_t *op, void *ct);
-
-extern int vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4);
-extern int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4);
-extern int vn_space(vnode_t *vp, int cmd, struct flock *bfp, int flag,
-    offset_t offset, void *x6, void *x7);
-extern file_t *vn_getf(int fd);
-extern void vn_releasef(int fd);
-extern void vn_areleasef(int fd, uf_info_t *fip);
-
-int spl_vn_init(void);
-void spl_vn_fini(void);
-
-#define	VOP_CLOSE				vn_close
-#define	VOP_SEEK				vn_seek
-#define	VOP_GETATTR				vn_getattr
-#define	VOP_FSYNC				vn_fsync
-#define	VOP_SPACE				vn_space
-#define	VOP_PUTPAGE(vp, o, s, f, x1, x2)	((void)0)
-#define	vn_is_readonly(vp)			0
-#define	getf					vn_getf
-#define	releasef				vn_releasef
-#define	areleasef				vn_areleasef
-
-extern vnode_t *rootdir;
-
 #endif /* SPL_VNODE_H */
diff --git a/include/os/linux/zfs/sys/policy.h b/include/os/linux/zfs/sys/policy.h
@@ -51,7 +51,7 @@ int secpolicy_zfs(const cred_t *);
 void secpolicy_setid_clear(vattr_t *, cred_t *);
 int secpolicy_setid_setsticky_clear(struct inode *, vattr_t *,
     const vattr_t *, cred_t *);
-int secpolicy_xvattr(xvattr_t *, uid_t, cred_t *, vtype_t);
+int secpolicy_xvattr(xvattr_t *, uid_t, cred_t *, mode_t);
 int secpolicy_vnode_setattr(cred_t *, struct inode *, struct vattr *,
     const struct vattr *, int, int (void *, int, cred_t *), void *);
 int secpolicy_basic_link(const cred_t *);

diff --git a/include/os/linux/zfs/sys/zfs_vnops.h b/include/os/linux/zfs/sys/zfs_vnops.h
@@ -32,6 +32,7 @@
 #include <sys/fcntl.h>
 #include <sys/pathname.h>
 #include <sys/zpl.h>
+#include <sys/zfs_file.h>
 
 #ifdef	__cplusplus
 extern "C" {

diff --git a/include/sys/Makefile.am b/include/sys/Makefile.am
@@ -104,6 +104,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/zfs_context.h \
 	$(top_srcdir)/include/sys/zfs_debug.h \
 	$(top_srcdir)/include/sys/zfs_delay.h \
+	$(top_srcdir)/include/sys/zfs_file.h \
 	$(top_srcdir)/include/sys/zfs_fuid.h \
 	$(top_srcdir)/include/sys/zfs_project.h \
 	$(top_srcdir)/include/sys/zfs_ratelimit.h \

diff --git a/include/sys/dmu.h b/include/sys/dmu.h
@@ -49,6 +49,7 @@
 #include <sys/zio_compress.h>
 #include <sys/zio_priority.h>
 #include <sys/uio.h>
+#include <sys/zfs_file.h>
 
 #ifdef	__cplusplus
 extern "C" {
@@ -1071,7 +1072,7 @@ void dmu_traverse_objset(objset_t *os, uint64_t txg_start,
     dmu_traverse_cb_t cb, void *arg);
 
 int dmu_diff(const char *tosnap_name, const char *fromsnap_name,
-    struct vnode *vp, offset_t *offp);
+    zfs_file_t *fp, offset_t *offp);
 
 /* CRC64 table */
 #define	ZFS_CRC64_POLY	0xC96C5795D7870F42ULL	/* ECMA-182, reflected form */

diff --git a/include/sys/dmu_recv.h b/include/sys/dmu_recv.h
@@ -62,7 +62,7 @@ typedef struct dmu_recv_cookie {
 	nvlist_t *drc_begin_nvl;
 
 	objset_t *drc_os;
-	vnode_t *drc_vp; /* The vnode to read the stream from */
+	zfs_file_t *drc_fp; /* The file to read the stream from */
 	uint64_t drc_voff; /* The current offset in the stream */
 	uint64_t drc_bytes_read;
 	/*
@@ -82,7 +82,7 @@ typedef struct dmu_recv_cookie {
 int dmu_recv_begin(char *tofs, char *tosnap, dmu_replay_record_t *drr_begin,
     boolean_t force, boolean_t resumable, nvlist_t *localprops,
     nvlist_t *hidden_args, char *origin, dmu_recv_cookie_t *drc,
-    vnode_t *vp, offset_t *voffp);
+    zfs_file_t *fp, offset_t *voffp);
 int dmu_recv_stream(dmu_recv_cookie_t *drc, int cleanup_fd,
     uint64_t *action_handlep, offset_t *voffp);
 int dmu_recv_end(dmu_recv_cookie_t *drc, void *owner);

diff --git a/include/sys/vdev_file.h b/include/sys/vdev_file.h
@@ -34,7 +34,7 @@ extern "C" {
 #endif
 
 typedef struct vdev_file {
-	vnode_t		*vf_vnode;
+	zfs_file_t	*vf_file;
 } vdev_file_t;
 
 extern void vdev_file_init(void);

diff --git a/include/sys/vdev_impl.h b/include/sys/vdev_impl.h
@@ -220,8 +220,6 @@ struct vdev {
 	vdev_ops_t	*vdev_ops;	/* vdev operations		*/
 	spa_t		*vdev_spa;	/* spa for this vdev		*/
 	void		*vdev_tsd;	/* type-specific data		*/
-	vnode_t		*vdev_name_vp;	/* vnode for pathname		*/
-	vnode_t		*vdev_devid_vp;	/* vnode for devid		*/
 	vdev_t		*vdev_top;	/* top-level vdev		*/
 	vdev_t		*vdev_parent;	/* parent vdev			*/
 	vdev_t		**vdev_child;	/* array of children		*/

diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
@@ -42,7 +42,6 @@
 #include <sys/vmem.h>
 #include <sys/taskq.h>
 #include <sys/param.h>
-#include <sys/kobj.h>
 #include <sys/disp.h>
 #include <sys/debug.h>
 #include <sys/random.h>
@@ -515,16 +514,6 @@ extern void	system_taskq_fini(void);
 #define	XVA_MAPSIZE	3
 #define	XVA_MAGIC	0x78766174
 
-/*
- * vnodes
- */
-typedef struct vnode {
-	uint64_t	v_size;
-	int		v_fd;
-	char		*v_path;
-	int		v_dump_fd;
-} vnode_t;
-
 extern char *vn_dumpdir;
 #define	AV_SCANSTAMP_SZ	32		/* length of anti-virus scanstamp */
 
@@ -594,38 +583,6 @@ typedef struct vsecattr {
 
 #define	F_FREESP	11
 
-extern int fop_getattr(vnode_t *vp, vattr_t *vap);
-
-#define	VOP_CLOSE(vp, f, c, o, cr, ct)	vn_close(vp)
-#define	VOP_PUTPAGE(vp, of, sz, fl, cr, ct)	0
-#define	VOP_GETATTR(vp, vap, fl, cr, ct)  fop_getattr((vp), (vap));
-
-#define	VOP_FSYNC(vp, f, cr, ct)	fsync((vp)->v_fd)
-
-#if defined(FALLOC_FL_PUNCH_HOLE) && defined(FALLOC_FL_KEEP_SIZE)
-#define	VOP_SPACE(vp, cmd, flck, fl, off, cr, ct) \
-	fallocate((vp)->v_fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, \
-	    (flck)->l_start, (flck)->l_len)
-#else
-#define	VOP_SPACE(vp, cmd, flck, fl, off, cr, ct) (0)
-#endif
-
-#define	VN_RELE(vp)	vn_close(vp)
-
-extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
-    int x2, int x3);
-extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
-    int x2, int x3, vnode_t *vp, int fd);
-extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
-    offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
-extern void vn_close(vnode_t *vp);
-
-#define	vn_remove(path, x1, x2)		remove(path)
-#define	vn_rename(from, to, seg)	rename((from), (to))
-#define	vn_is_readonly(vp)		B_FALSE
-
-extern vnode_t *rootdir;
-
 #include <sys/file.h>		/* for FREAD, FWRITE, etc */
 
 /*
@@ -758,11 +715,6 @@ typedef struct ace_object {
 #define	ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE	0x07
 #define	ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE	0x08
 
-extern struct _buf *kobj_open_file(char *name);
-extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
-    unsigned off);
-extern void kobj_close_file(struct _buf *file);
-extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
     cred_t *cr);