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-rw-r--r--module/zfs/zfs_vfsops.c1718
1 files changed, 508 insertions, 1210 deletions
diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index 77bef009b..bb2fdb029 100644
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -38,6 +38,7 @@
#include <sys/cmn_err.h>
#include "fs/fs_subr.h"
#include <sys/zfs_znode.h>
+#include <sys/zfs_vnops.h>
#include <sys/zfs_dir.h>
#include <sys/zil.h>
#include <sys/fs/zfs.h>
@@ -55,7 +56,6 @@
#include <sys/modctl.h>
#include <sys/refstr.h>
#include <sys/zfs_ioctl.h>
-#include <sys/zfs_ctldir.h>
#include <sys/zfs_fuid.h>
#include <sys/bootconf.h>
#include <sys/sunddi.h>
@@ -63,113 +63,48 @@
#include <sys/dmu_objset.h>
#include <sys/spa_boot.h>
#include <sys/sa.h>
+#include <sys/zpl.h>
#include "zfs_comutil.h"
-#ifdef HAVE_ZPL
-int zfsfstype;
-vfsops_t *zfs_vfsops = NULL;
-static major_t zfs_major;
-static minor_t zfs_minor;
-static kmutex_t zfs_dev_mtx;
-
-extern int sys_shutdown;
-
-static int zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr);
-static int zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr);
-static int zfs_mountroot(vfs_t *vfsp, enum whymountroot);
-static int zfs_root(vfs_t *vfsp, vnode_t **vpp);
-static int zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp);
-static int zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp);
-static void zfs_freevfs(vfs_t *vfsp);
-
-static const fs_operation_def_t zfs_vfsops_template[] = {
- VFSNAME_MOUNT, { .vfs_mount = zfs_mount },
- VFSNAME_MOUNTROOT, { .vfs_mountroot = zfs_mountroot },
- VFSNAME_UNMOUNT, { .vfs_unmount = zfs_umount },
- VFSNAME_ROOT, { .vfs_root = zfs_root },
- VFSNAME_STATVFS, { .vfs_statvfs = zfs_statvfs },
- VFSNAME_SYNC, { .vfs_sync = zfs_sync },
- VFSNAME_VGET, { .vfs_vget = zfs_vget },
- VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs },
- NULL, NULL
-};
-
-static const fs_operation_def_t zfs_vfsops_eio_template[] = {
- VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs },
- NULL, NULL
-};
-
-/*
- * We need to keep a count of active fs's.
- * This is necessary to prevent our module
- * from being unloaded after a umount -f
- */
-static uint32_t zfs_active_fs_count = 0;
-
-static char *noatime_cancel[] = { MNTOPT_ATIME, NULL };
-static char *atime_cancel[] = { MNTOPT_NOATIME, NULL };
-static char *noxattr_cancel[] = { MNTOPT_XATTR, NULL };
-static char *xattr_cancel[] = { MNTOPT_NOXATTR, NULL };
-
-/*
- * MO_DEFAULT is not used since the default value is determined
- * by the equivalent property.
- */
-static mntopt_t mntopts[] = {
- { MNTOPT_NOXATTR, noxattr_cancel, NULL, 0, NULL },
- { MNTOPT_XATTR, xattr_cancel, NULL, 0, NULL },
- { MNTOPT_NOATIME, noatime_cancel, NULL, 0, NULL },
- { MNTOPT_ATIME, atime_cancel, NULL, 0, NULL }
-};
-
-static mntopts_t zfs_mntopts = {
- sizeof (mntopts) / sizeof (mntopt_t),
- mntopts
-};
/*ARGSUSED*/
int
-zfs_sync(vfs_t *vfsp, short flag, cred_t *cr)
+zfs_sync(zfs_sb_t *zsb, short flag, cred_t *cr)
{
/*
* Data integrity is job one. We don't want a compromised kernel
* writing to the storage pool, so we never sync during panic.
*/
- if (panicstr)
- return (0);
-
- /*
- * SYNC_ATTR is used by fsflush() to force old filesystems like UFS
- * to sync metadata, which they would otherwise cache indefinitely.
- * Semantically, the only requirement is that the sync be initiated.
- * The DMU syncs out txgs frequently, so there's nothing to do.
- */
- if (flag & SYNC_ATTR)
+ if (unlikely(oops_in_progress))
return (0);
- if (vfsp != NULL) {
+ if (zsb != NULL) {
/*
* Sync a specific filesystem.
*/
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
dsl_pool_t *dp;
- ZFS_ENTER(zfsvfs);
- dp = dmu_objset_pool(zfsvfs->z_os);
+ ZFS_ENTER(zsb);
+ dp = dmu_objset_pool(zsb->z_os);
+#ifdef HAVE_SHUTDOWN
/*
* If the system is shutting down, then skip any
* filesystems which may exist on a suspended pool.
+ *
+ * XXX: This can be implemented using the Linux reboot
+ * notifiers: {un}register_reboot_notifier().
*/
if (sys_shutdown && spa_suspended(dp->dp_spa)) {
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
return (0);
}
+#endif /* HAVE_SHUTDOWN */
- if (zfsvfs->z_log != NULL)
- zil_commit(zfsvfs->z_log, 0);
+ if (zsb->z_log != NULL)
+ zil_commit(zsb->z_log, 0);
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
} else {
/*
* Sync all ZFS filesystems. This is what happens when you
@@ -181,169 +116,111 @@ zfs_sync(vfs_t *vfsp, short flag, cred_t *cr)
return (0);
}
-
-static int
-zfs_create_unique_device(dev_t *dev)
-{
- major_t new_major;
-
- do {
- ASSERT3U(zfs_minor, <=, MAXMIN32);
- minor_t start = zfs_minor;
- do {
- mutex_enter(&zfs_dev_mtx);
- if (zfs_minor >= MAXMIN32) {
- /*
- * If we're still using the real major
- * keep out of /dev/zfs and /dev/zvol minor
- * number space. If we're using a getudev()'ed
- * major number, we can use all of its minors.
- */
- if (zfs_major == ddi_name_to_major(ZFS_DRIVER))
- zfs_minor = ZFS_MIN_MINOR;
- else
- zfs_minor = 0;
- } else {
- zfs_minor++;
- }
- *dev = makedevice(zfs_major, zfs_minor);
- mutex_exit(&zfs_dev_mtx);
- } while (vfs_devismounted(*dev) && zfs_minor != start);
- if (zfs_minor == start) {
- /*
- * We are using all ~262,000 minor numbers for the
- * current major number. Create a new major number.
- */
- if ((new_major = getudev()) == (major_t)-1) {
- cmn_err(CE_WARN,
- "zfs_mount: Can't get unique major "
- "device number.");
- return (-1);
- }
- mutex_enter(&zfs_dev_mtx);
- zfs_major = new_major;
- zfs_minor = 0;
-
- mutex_exit(&zfs_dev_mtx);
- } else {
- break;
- }
- /* CONSTANTCONDITION */
- } while (1);
-
- return (0);
-}
+EXPORT_SYMBOL(zfs_sync);
static void
atime_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+ struct vfsmount *vfs = zsb->z_vfs;
if (newval == TRUE) {
- zfsvfs->z_atime = TRUE;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_ATIME, NULL, 0);
+ vfs->mnt_flags &= ~MNT_NOATIME;
+ sb->s_flags &= ~MS_NOATIME;
+ zsb->z_atime = TRUE;
} else {
- zfsvfs->z_atime = FALSE;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_ATIME);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME, NULL, 0);
+ vfs->mnt_flags |= MNT_NOATIME;
+ sb->s_flags |= MS_NOATIME;
+ zsb->z_atime = FALSE;
}
}
static void
xattr_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
if (newval == TRUE) {
- /* XXX locking on vfs_flag? */
- zfsvfs->z_vfs->vfs_flag |= VFS_XATTR;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_XATTR, NULL, 0);
+ zsb->z_flags |= ZSB_XATTR_USER;
} else {
- /* XXX locking on vfs_flag? */
- zfsvfs->z_vfs->vfs_flag &= ~VFS_XATTR;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_XATTR);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR, NULL, 0);
+ zsb->z_flags &= ~ZSB_XATTR_USER;
}
}
static void
blksz_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
if (newval < SPA_MINBLOCKSIZE ||
newval > SPA_MAXBLOCKSIZE || !ISP2(newval))
newval = SPA_MAXBLOCKSIZE;
- zfsvfs->z_max_blksz = newval;
- zfsvfs->z_vfs->vfs_bsize = newval;
+ zsb->z_max_blksz = newval;
}
static void
readonly_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+ struct vfsmount *vfs = zsb->z_vfs;
if (newval) {
- /* XXX locking on vfs_flag? */
- zfsvfs->z_vfs->vfs_flag |= VFS_RDONLY;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RW);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RO, NULL, 0);
+ vfs->mnt_flags |= MNT_READONLY;
+ sb->s_flags |= MS_RDONLY;
} else {
- /* XXX locking on vfs_flag? */
- zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RO);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RW, NULL, 0);
+ vfs->mnt_flags &= ~MNT_READONLY;
+ sb->s_flags &= ~MS_RDONLY;
}
}
static void
devices_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+ struct vfsmount *vfs = zsb->z_vfs;
if (newval == FALSE) {
- zfsvfs->z_vfs->vfs_flag |= VFS_NODEVICES;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES, NULL, 0);
+ vfs->mnt_flags |= MNT_NODEV;
+ sb->s_flags |= MS_NODEV;
} else {
- zfsvfs->z_vfs->vfs_flag &= ~VFS_NODEVICES;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES, NULL, 0);
+ vfs->mnt_flags &= ~MNT_NODEV;
+ sb->s_flags &= ~MS_NODEV;
}
}
static void
setuid_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+ struct vfsmount *vfs = zsb->z_vfs;
if (newval == FALSE) {
- zfsvfs->z_vfs->vfs_flag |= VFS_NOSETUID;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_SETUID);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID, NULL, 0);
+ vfs->mnt_flags |= MNT_NOSUID;
+ sb->s_flags |= MS_NOSUID;
} else {
- zfsvfs->z_vfs->vfs_flag &= ~VFS_NOSETUID;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_SETUID, NULL, 0);
+ vfs->mnt_flags &= ~MNT_NOSUID;
+ sb->s_flags &= ~MS_NOSUID;
}
}
static void
exec_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+ struct vfsmount *vfs = zsb->z_vfs;
if (newval == FALSE) {
- zfsvfs->z_vfs->vfs_flag |= VFS_NOEXEC;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_EXEC);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC, NULL, 0);
+ vfs->mnt_flags |= MNT_NOEXEC;
+ sb->s_flags |= MS_NOEXEC;
} else {
- zfsvfs->z_vfs->vfs_flag &= ~VFS_NOEXEC;
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_EXEC, NULL, 0);
+ vfs->mnt_flags &= ~MNT_NOEXEC;
+ sb->s_flags &= ~MS_NOEXEC;
}
}
@@ -358,138 +235,89 @@ exec_changed_cb(void *arg, uint64_t newval)
static void
nbmand_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
- if (newval == FALSE) {
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND, NULL, 0);
+ zfs_sb_t *zsb = arg;
+ struct super_block *sb = zsb->z_sb;
+
+ if (newval == TRUE) {
+ sb->s_flags |= MS_MANDLOCK;
} else {
- vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND);
- vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND, NULL, 0);
+ sb->s_flags &= ~MS_MANDLOCK;
}
}
static void
snapdir_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
-
- zfsvfs->z_show_ctldir = newval;
+ ((zfs_sb_t *)arg)->z_show_ctldir = newval;
}
static void
vscan_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
-
- zfsvfs->z_vscan = newval;
+ ((zfs_sb_t *)arg)->z_vscan = newval;
}
static void
acl_inherit_changed_cb(void *arg, uint64_t newval)
{
- zfsvfs_t *zfsvfs = arg;
-
- zfsvfs->z_acl_inherit = newval;
+ ((zfs_sb_t *)arg)->z_acl_inherit = newval;
}
-static int
-zfs_register_callbacks(vfs_t *vfsp)
+int
+zfs_register_callbacks(zfs_sb_t *zsb)
{
+ struct vfsmount *vfsp = zsb->z_vfs;
struct dsl_dataset *ds = NULL;
- objset_t *os = NULL;
- zfsvfs_t *zfsvfs = NULL;
+ objset_t *os = zsb->z_os;
uint64_t nbmand;
- int readonly, do_readonly = B_FALSE;
- int setuid, do_setuid = B_FALSE;
- int exec, do_exec = B_FALSE;
- int devices, do_devices = B_FALSE;
- int xattr, do_xattr = B_FALSE;
- int atime, do_atime = B_FALSE;
+ boolean_t readonly = B_FALSE;
+ boolean_t setuid = B_TRUE;
+ boolean_t exec = B_TRUE;
+ boolean_t devices = B_TRUE;
+ boolean_t xattr = B_TRUE;
+ boolean_t atime = B_TRUE;
+ char osname[MAXNAMELEN];
int error = 0;
- ASSERT(vfsp);
- zfsvfs = vfsp->vfs_data;
- ASSERT(zfsvfs);
- os = zfsvfs->z_os;
-
/*
- * The act of registering our callbacks will destroy any mount
- * options we may have. In order to enable temporary overrides
- * of mount options, we stash away the current values and
- * restore them after we register the callbacks.
+ * While Linux allows multiple vfs mounts per super block we have
+ * limited it artificially to one in zfs_fill_super. Thus it is
+ * safe for us to modify the vfs mount fails through the callbacks.
*/
- if (vfs_optionisset(vfsp, MNTOPT_RO, NULL) ||
- !spa_writeable(dmu_objset_spa(os))) {
+ if ((vfsp->mnt_flags & MNT_READONLY) ||
+ !spa_writeable(dmu_objset_spa(os)))
readonly = B_TRUE;
- do_readonly = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_RW, NULL)) {
- readonly = B_FALSE;
- do_readonly = B_TRUE;
- }
- if (vfs_optionisset(vfsp, MNTOPT_NOSUID, NULL)) {
+
+ if (vfsp->mnt_flags & MNT_NOSUID) {
devices = B_FALSE;
setuid = B_FALSE;
- do_devices = B_TRUE;
- do_setuid = B_TRUE;
} else {
- if (vfs_optionisset(vfsp, MNTOPT_NODEVICES, NULL)) {
+ if (vfsp->mnt_flags & MNT_NODEV)
devices = B_FALSE;
- do_devices = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_DEVICES, NULL)) {
- devices = B_TRUE;
- do_devices = B_TRUE;
- }
-
- if (vfs_optionisset(vfsp, MNTOPT_NOSETUID, NULL)) {
- setuid = B_FALSE;
- do_setuid = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_SETUID, NULL)) {
- setuid = B_TRUE;
- do_setuid = B_TRUE;
- }
}
- if (vfs_optionisset(vfsp, MNTOPT_NOEXEC, NULL)) {
+
+ if (vfsp->mnt_flags & MNT_NOEXEC)
exec = B_FALSE;
- do_exec = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_EXEC, NULL)) {
- exec = B_TRUE;
- do_exec = B_TRUE;
- }
- if (vfs_optionisset(vfsp, MNTOPT_NOXATTR, NULL)) {
- xattr = B_FALSE;
- do_xattr = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_XATTR, NULL)) {
- xattr = B_TRUE;
- do_xattr = B_TRUE;
- }
- if (vfs_optionisset(vfsp, MNTOPT_NOATIME, NULL)) {
+
+ if (vfsp->mnt_flags & MNT_NOATIME)
atime = B_FALSE;
- do_atime = B_TRUE;
- } else if (vfs_optionisset(vfsp, MNTOPT_ATIME, NULL)) {
- atime = B_TRUE;
- do_atime = B_TRUE;
- }
/*
- * nbmand is a special property. It can only be changed at
- * mount time.
+ * nbmand is a special property which may only be changed at
+ * mount time. Unfortunately, Linux does not have a VFS mount
+ * flag instead this is a super block flag. So setting this
+ * option at mount time will have to wait until we can parse
+ * the mount option string. For now we rely on the nbmand
+ * value stored with the object set. Additional mount option
+ * string to be handled:
*
- * This is weird, but it is documented to only be changeable
- * at mount time.
+ * case: sensitive|insensitive|mixed
+ * zerocopy: on|off
*/
- if (vfs_optionisset(vfsp, MNTOPT_NONBMAND, NULL)) {
- nbmand = B_FALSE;
- } else if (vfs_optionisset(vfsp, MNTOPT_NBMAND, NULL)) {
- nbmand = B_TRUE;
- } else {
- char osname[MAXNAMELEN];
- dmu_objset_name(os, osname);
- if (error = dsl_prop_get_integer(osname, "nbmand", &nbmand,
- NULL)) {
- return (error);
- }
- }
+ dmu_objset_name(os, osname);
+ if ((error = dsl_prop_get_integer(osname, "nbmand", &nbmand, NULL)))
+ return (error);
/*
* Register property callbacks.
@@ -499,45 +327,39 @@ zfs_register_callbacks(vfs_t *vfsp)
* overboard...
*/
ds = dmu_objset_ds(os);
- error = dsl_prop_register(ds, "atime", atime_changed_cb, zfsvfs);
+ error = dsl_prop_register(ds,
+ "atime", atime_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "xattr", xattr_changed_cb, zfsvfs);
+ "xattr", xattr_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "recordsize", blksz_changed_cb, zfsvfs);
+ "recordsize", blksz_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "readonly", readonly_changed_cb, zfsvfs);
+ "readonly", readonly_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "devices", devices_changed_cb, zfsvfs);
+ "devices", devices_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "setuid", setuid_changed_cb, zfsvfs);
+ "setuid", setuid_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "exec", exec_changed_cb, zfsvfs);
+ "exec", exec_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "snapdir", snapdir_changed_cb, zfsvfs);
+ "snapdir", snapdir_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "aclinherit", acl_inherit_changed_cb, zfsvfs);
+ "aclinherit", acl_inherit_changed_cb, zsb);
error = error ? error : dsl_prop_register(ds,
- "vscan", vscan_changed_cb, zfsvfs);
+ "vscan", vscan_changed_cb, zsb);
if (error)
goto unregister;
/*
- * Invoke our callbacks to restore temporary mount options.
+ * Invoke our callbacks to set required flags.
*/
- if (do_readonly)
- readonly_changed_cb(zfsvfs, readonly);
- if (do_setuid)
- setuid_changed_cb(zfsvfs, setuid);
- if (do_exec)
- exec_changed_cb(zfsvfs, exec);
- if (do_devices)
- devices_changed_cb(zfsvfs, devices);
- if (do_xattr)
- xattr_changed_cb(zfsvfs, xattr);
- if (do_atime)
- atime_changed_cb(zfsvfs, atime);
-
- nbmand_changed_cb(zfsvfs, nbmand);
+ readonly_changed_cb(zsb, readonly);
+ setuid_changed_cb(zsb, setuid);
+ exec_changed_cb(zsb, exec);
+ devices_changed_cb(zsb, devices);
+ xattr_changed_cb(zsb, xattr);
+ atime_changed_cb(zsb, atime);
+ nbmand_changed_cb(zsb, nbmand);
return (0);
@@ -547,21 +369,21 @@ unregister:
* registered, but this is OK; it will simply return ENOMSG,
* which we will ignore.
*/
- (void) dsl_prop_unregister(ds, "atime", atime_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "xattr", xattr_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "recordsize", blksz_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "readonly", readonly_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "devices", devices_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "setuid", setuid_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "exec", exec_changed_cb, zfsvfs);
- (void) dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs);
+ (void) dsl_prop_unregister(ds, "atime", atime_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "xattr", xattr_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "recordsize", blksz_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "readonly", readonly_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "devices", devices_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "setuid", setuid_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "exec", exec_changed_cb, zsb);
+ (void) dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zsb);
(void) dsl_prop_unregister(ds, "aclinherit", acl_inherit_changed_cb,
- zfsvfs);
- (void) dsl_prop_unregister(ds, "vscan", vscan_changed_cb, zfsvfs);
- return (error);
+ zsb);
+ (void) dsl_prop_unregister(ds, "vscan", vscan_changed_cb, zsb);
+ return (error);
}
-#endif /* HAVE_ZPL */
+EXPORT_SYMBOL(zfs_register_callbacks);
static int
zfs_space_delta_cb(dmu_object_type_t bonustype, void *data,
@@ -612,9 +434,8 @@ zfs_space_delta_cb(dmu_object_type_t bonustype, void *data,
return (error);
}
-#ifdef HAVE_ZPL
static void
-fuidstr_to_sid(zfsvfs_t *zfsvfs, const char *fuidstr,
+fuidstr_to_sid(zfs_sb_t *zsb, const char *fuidstr,
char *domainbuf, int buflen, uid_t *ridp)
{
uint64_t fuid;
@@ -622,7 +443,7 @@ fuidstr_to_sid(zfsvfs_t *zfsvfs, const char *fuidstr,
fuid = strtonum(fuidstr, NULL);
- domain = zfs_fuid_find_by_idx(zfsvfs, FUID_INDEX(fuid));
+ domain = zfs_fuid_find_by_idx(zsb, FUID_INDEX(fuid));
if (domain)
(void) strlcpy(domainbuf, domain, buflen);
else
@@ -631,7 +452,7 @@ fuidstr_to_sid(zfsvfs_t *zfsvfs, const char *fuidstr,
}
static uint64_t
-zfs_userquota_prop_to_obj(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type)
+zfs_userquota_prop_to_obj(zfs_sb_t *zsb, zfs_userquota_prop_t type)
{
switch (type) {
case ZFS_PROP_USERUSED:
@@ -639,15 +460,17 @@ zfs_userquota_prop_to_obj(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type)
case ZFS_PROP_GROUPUSED:
return (DMU_GROUPUSED_OBJECT);
case ZFS_PROP_USERQUOTA:
- return (zfsvfs->z_userquota_obj);
+ return (zsb->z_userquota_obj);
case ZFS_PROP_GROUPQUOTA:
- return (zfsvfs->z_groupquota_obj);
+ return (zsb->z_groupquota_obj);
+ default:
+ return (ENOTSUP);
}
return (0);
}
int
-zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+zfs_userspace_many(zfs_sb_t *zsb, zfs_userquota_prop_t type,
uint64_t *cookiep, void *vbuf, uint64_t *bufsizep)
{
int error;
@@ -656,23 +479,23 @@ zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
zfs_useracct_t *buf = vbuf;
uint64_t obj;
- if (!dmu_objset_userspace_present(zfsvfs->z_os))
+ if (!dmu_objset_userspace_present(zsb->z_os))
return (ENOTSUP);
- obj = zfs_userquota_prop_to_obj(zfsvfs, type);
+ obj = zfs_userquota_prop_to_obj(zsb, type);
if (obj == 0) {
*bufsizep = 0;
return (0);
}
- for (zap_cursor_init_serialized(&zc, zfsvfs->z_os, obj, *cookiep);
+ for (zap_cursor_init_serialized(&zc, zsb->z_os, obj, *cookiep);
(error = zap_cursor_retrieve(&zc, &za)) == 0;
zap_cursor_advance(&zc)) {
if ((uintptr_t)buf - (uintptr_t)vbuf + sizeof (zfs_useracct_t) >
*bufsizep)
break;
- fuidstr_to_sid(zfsvfs, za.za_name,
+ fuidstr_to_sid(zsb, za.za_name,
buf->zu_domain, sizeof (buf->zu_domain), &buf->zu_rid);
buf->zu_space = za.za_first_integer;
@@ -687,19 +510,20 @@ zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
zap_cursor_fini(&zc);
return (error);
}
+EXPORT_SYMBOL(zfs_userspace_many);
/*
* buf must be big enough (eg, 32 bytes)
*/
static int
-id_to_fuidstr(zfsvfs_t *zfsvfs, const char *domain, uid_t rid,
+id_to_fuidstr(zfs_sb_t *zsb, const char *domain, uid_t rid,
char *buf, boolean_t addok)
{
uint64_t fuid;
int domainid = 0;
if (domain && domain[0]) {
- domainid = zfs_fuid_find_by_domain(zfsvfs, domain, NULL, addok);
+ domainid = zfs_fuid_find_by_domain(zsb, domain, NULL, addok);
if (domainid == -1)
return (ENOENT);
}
@@ -709,7 +533,7 @@ id_to_fuidstr(zfsvfs_t *zfsvfs, const char *domain, uid_t rid,
}
int
-zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+zfs_userspace_one(zfs_sb_t *zsb, zfs_userquota_prop_t type,
const char *domain, uint64_t rid, uint64_t *valp)
{
char buf[32];
@@ -718,25 +542,26 @@ zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
*valp = 0;
- if (!dmu_objset_userspace_present(zfsvfs->z_os))
+ if (!dmu_objset_userspace_present(zsb->z_os))
return (ENOTSUP);
- obj = zfs_userquota_prop_to_obj(zfsvfs, type);
+ obj = zfs_userquota_prop_to_obj(zsb, type);
if (obj == 0)
return (0);
- err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_FALSE);
+ err = id_to_fuidstr(zsb, domain, rid, buf, B_FALSE);
if (err)
return (err);
- err = zap_lookup(zfsvfs->z_os, obj, buf, 8, 1, valp);
+ err = zap_lookup(zsb->z_os, obj, buf, 8, 1, valp);
if (err == ENOENT)
err = 0;
return (err);
}
+EXPORT_SYMBOL(zfs_userspace_one);
int
-zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+zfs_set_userquota(zfs_sb_t *zsb, zfs_userquota_prop_t type,
const char *domain, uint64_t rid, uint64_t quota)
{
char buf[32];
@@ -748,112 +573,115 @@ zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
if (type != ZFS_PROP_USERQUOTA && type != ZFS_PROP_GROUPQUOTA)
return (EINVAL);
- if (zfsvfs->z_version < ZPL_VERSION_USERSPACE)
+ if (zsb->z_version < ZPL_VERSION_USERSPACE)
return (ENOTSUP);
- objp = (type == ZFS_PROP_USERQUOTA) ? &zfsvfs->z_userquota_obj :
- &zfsvfs->z_groupquota_obj;
+ objp = (type == ZFS_PROP_USERQUOTA) ? &zsb->z_userquota_obj :
+ &zsb->z_groupquota_obj;
- err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_TRUE);
+ err = id_to_fuidstr(zsb, domain, rid, buf, B_TRUE);
if (err)
return (err);
- fuid_dirtied = zfsvfs->z_fuid_dirty;
+ fuid_dirtied = zsb->z_fuid_dirty;
- tx = dmu_tx_create(zfsvfs->z_os);
+ tx = dmu_tx_create(zsb->z_os);
dmu_tx_hold_zap(tx, *objp ? *objp : DMU_NEW_OBJECT, B_TRUE, NULL);
if (*objp == 0) {
dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE,
zfs_userquota_prop_prefixes[type]);
}
if (fuid_dirtied)
- zfs_fuid_txhold(zfsvfs, tx);
+ zfs_fuid_txhold(zsb, tx);
err = dmu_tx_assign(tx, TXG_WAIT);
if (err) {
dmu_tx_abort(tx);
return (err);
}
- mutex_enter(&zfsvfs->z_lock);
+ mutex_enter(&zsb->z_lock);
if (*objp == 0) {
- *objp = zap_create(zfsvfs->z_os, DMU_OT_USERGROUP_QUOTA,
+ *objp = zap_create(zsb->z_os, DMU_OT_USERGROUP_QUOTA,
DMU_OT_NONE, 0, tx);
- VERIFY(0 == zap_add(zfsvfs->z_os, MASTER_NODE_OBJ,
+ VERIFY(0 == zap_add(zsb->z_os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[type], 8, 1, objp, tx));
}
- mutex_exit(&zfsvfs->z_lock);
+ mutex_exit(&zsb->z_lock);
if (quota == 0) {
- err = zap_remove(zfsvfs->z_os, *objp, buf, tx);
+ err = zap_remove(zsb->z_os, *objp, buf, tx);
if (err == ENOENT)
err = 0;
} else {
- err = zap_update(zfsvfs->z_os, *objp, buf, 8, 1, &quota, tx);
+ err = zap_update(zsb->z_os, *objp, buf, 8, 1, &quota, tx);
}
ASSERT(err == 0);
if (fuid_dirtied)
- zfs_fuid_sync(zfsvfs, tx);
+ zfs_fuid_sync(zsb, tx);
dmu_tx_commit(tx);
return (err);
}
+EXPORT_SYMBOL(zfs_set_userquota);
boolean_t
-zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid)
+zfs_fuid_overquota(zfs_sb_t *zsb, boolean_t isgroup, uint64_t fuid)
{
char buf[32];
uint64_t used, quota, usedobj, quotaobj;
int err;
usedobj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT;
- quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
+ quotaobj = isgroup ? zsb->z_groupquota_obj : zsb->z_userquota_obj;
- if (quotaobj == 0 || zfsvfs->z_replay)
+ if (quotaobj == 0 || zsb->z_replay)
return (B_FALSE);
(void) sprintf(buf, "%llx", (longlong_t)fuid);
- err = zap_lookup(zfsvfs->z_os, quotaobj, buf, 8, 1, &quota);
+ err = zap_lookup(zsb->z_os, quotaobj, buf, 8, 1, &quota);
if (err != 0)
return (B_FALSE);
- err = zap_lookup(zfsvfs->z_os, usedobj, buf, 8, 1, &used);
+ err = zap_lookup(zsb->z_os, usedobj, buf, 8, 1, &used);
if (err != 0)
return (B_FALSE);
return (used >= quota);
}
+EXPORT_SYMBOL(zfs_fuid_overquota);
boolean_t
-zfs_owner_overquota(zfsvfs_t *zfsvfs, znode_t *zp, boolean_t isgroup)
+zfs_owner_overquota(zfs_sb_t *zsb, znode_t *zp, boolean_t isgroup)
{
uint64_t fuid;
uint64_t quotaobj;
- quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
+ quotaobj = isgroup ? zsb->z_groupquota_obj : zsb->z_userquota_obj;
fuid = isgroup ? zp->z_gid : zp->z_uid;
- if (quotaobj == 0 || zfsvfs->z_replay)
+ if (quotaobj == 0 || zsb->z_replay)
return (B_FALSE);
- return (zfs_fuid_overquota(zfsvfs, isgroup, fuid));
+ return (zfs_fuid_overquota(zsb, isgroup, fuid));
}
+EXPORT_SYMBOL(zfs_owner_overquota);
int
-zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
+zfs_sb_create(const char *osname, zfs_sb_t **zsbp)
{
objset_t *os;
- zfsvfs_t *zfsvfs;
+ zfs_sb_t *zsb;
uint64_t zval;
int i, error;
uint64_t sa_obj;
- zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
+ zsb = kmem_zalloc(sizeof (zfs_sb_t), KM_SLEEP);
/*
* We claim to always be readonly so we can open snapshots;
* other ZPL code will prevent us from writing to snapshots.
*/
- error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zfsvfs, &os);
+ error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zsb, &os);
if (error) {
- kmem_free(zfsvfs, sizeof (zfsvfs_t));
+ kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
@@ -862,48 +690,48 @@ zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
* Should probably make this a kmem cache, shuffle fields,
* and just bzero up to z_hold_mtx[].
*/
- zfsvfs->z_vfs = NULL;
- zfsvfs->z_parent = zfsvfs;
- zfsvfs->z_max_blksz = SPA_MAXBLOCKSIZE;
- zfsvfs->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
- zfsvfs->z_os = os;
+ zsb->z_vfs = NULL;
+ zsb->z_parent = zsb;
+ zsb->z_max_blksz = SPA_MAXBLOCKSIZE;
+ zsb->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
+ zsb->z_os = os;
- error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zfsvfs->z_version);
+ error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zsb->z_version);
if (error) {
goto out;
- } else if (zfsvfs->z_version >
+ } else if (zsb->z_version >
zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) {
- (void) printf("Can't mount a version %lld file system "
+ (void) printk("Can't mount a version %lld file system "
"on a version %lld pool\n. Pool must be upgraded to mount "
- "this file system.", (u_longlong_t)zfsvfs->z_version,
+ "this file system.", (u_longlong_t)zsb->z_version,
(u_longlong_t)spa_version(dmu_objset_spa(os)));
error = ENOTSUP;
goto out;
}
if ((error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &zval)) != 0)
goto out;
- zfsvfs->z_norm = (int)zval;
+ zsb->z_norm = (int)zval;
if ((error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &zval)) != 0)
goto out;
- zfsvfs->z_utf8 = (zval != 0);
+ zsb->z_utf8 = (zval != 0);
if ((error = zfs_get_zplprop(os, ZFS_PROP_CASE, &zval)) != 0)
goto out;
- zfsvfs->z_case = (uint_t)zval;
+ zsb->z_case = (uint_t)zval;
/*
* Fold case on file systems that are always or sometimes case
* insensitive.
*/
- if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE ||
- zfsvfs->z_case == ZFS_CASE_MIXED)
- zfsvfs->z_norm |= U8_TEXTPREP_TOUPPER;
+ if (zsb->z_case == ZFS_CASE_INSENSITIVE ||
+ zsb->z_case == ZFS_CASE_MIXED)
+ zsb->z_norm |= U8_TEXTPREP_TOUPPER;
- zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os);
- zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os);
+ zsb->z_use_fuids = USE_FUIDS(zsb->z_version, zsb->z_os);
+ zsb->z_use_sa = USE_SA(zsb->z_version, zsb->z_os);
- if (zfsvfs->z_use_sa) {
+ if (zsb->z_use_sa) {
/* should either have both of these objects or none */
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1,
&sa_obj);
@@ -918,83 +746,83 @@ zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
}
error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
- &zfsvfs->z_attr_table);
+ &zsb->z_attr_table);
if (error)
goto out;
- if (zfsvfs->z_version >= ZPL_VERSION_SA)
+ if (zsb->z_version >= ZPL_VERSION_SA)
sa_register_update_callback(os, zfs_sa_upgrade);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1,
- &zfsvfs->z_root);
+ &zsb->z_root);
if (error)
goto out;
- ASSERT(zfsvfs->z_root != 0);
+ ASSERT(zsb->z_root != 0);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_UNLINKED_SET, 8, 1,
- &zfsvfs->z_unlinkedobj);
+ &zsb->z_unlinkedobj);
if (error)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA],
- 8, 1, &zfsvfs->z_userquota_obj);
+ 8, 1, &zsb->z_userquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA],
- 8, 1, &zfsvfs->z_groupquota_obj);
+ 8, 1, &zsb->z_groupquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 8, 1,
- &zfsvfs->z_fuid_obj);
+ &zsb->z_fuid_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SHARES_DIR, 8, 1,
- &zfsvfs->z_shares_dir);
+ &zsb->z_shares_dir);
if (error && error != ENOENT)
goto out;
- mutex_init(&zfsvfs->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
- mutex_init(&zfsvfs->z_lock, NULL, MUTEX_DEFAULT, NULL);
- list_create(&zfsvfs->z_all_znodes, sizeof (znode_t),
+ mutex_init(&zsb->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
+ mutex_init(&zsb->z_lock, NULL, MUTEX_DEFAULT, NULL);
+ list_create(&zsb->z_all_znodes, sizeof (znode_t),
offsetof(znode_t, z_link_node));
- rrw_init(&zfsvfs->z_teardown_lock);
- rw_init(&zfsvfs->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
- rw_init(&zfsvfs->z_fuid_lock, NULL, RW_DEFAULT, NULL);
+ rrw_init(&zsb->z_teardown_lock);
+ rw_init(&zsb->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
+ rw_init(&zsb->z_fuid_lock, NULL, RW_DEFAULT, NULL);
for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
- mutex_init(&zfsvfs->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL);
+ mutex_init(&zsb->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL);
- *zfvp = zfsvfs;
+ *zsbp = zsb;
return (0);
out:
- dmu_objset_disown(os, zfsvfs);
- *zfvp = NULL;
- kmem_free(zfsvfs, sizeof (zfsvfs_t));
+ dmu_objset_disown(os, zsb);
+ *zsbp = NULL;
+ kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
static int
-zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
+zfs_sb_setup(zfs_sb_t *zsb, boolean_t mounting)
{
int error;
- error = zfs_register_callbacks(zfsvfs->z_vfs);
+ error = zfs_register_callbacks(zsb);
if (error)
return (error);
/*
- * Set the objset user_ptr to track its zfsvfs.
+ * Set the objset user_ptr to track its zsb.
*/
- mutex_enter(&zfsvfs->z_os->os_user_ptr_lock);
- dmu_objset_set_user(zfsvfs->z_os, zfsvfs);
- mutex_exit(&zfsvfs->z_os->os_user_ptr_lock);
+ mutex_enter(&zsb->z_os->os_user_ptr_lock);
+ dmu_objset_set_user(zsb->z_os, zsb);
+ mutex_exit(&zsb->z_os->os_user_ptr_lock);
- zfsvfs->z_log = zil_open(zfsvfs->z_os, zfs_get_data);
+ zsb->z_log = zil_open(zsb->z_os, zfs_get_data);
/*
* If we are not mounting (ie: online recv), then we don't
@@ -1008,11 +836,11 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
* During replay we remove the read only flag to
* allow replays to succeed.
*/
- readonly = zfsvfs->z_vfs->vfs_flag & VFS_RDONLY;
+ readonly = zsb->z_vfs->mnt_flags & MNT_READONLY;
if (readonly != 0)
- zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY;
+ zsb->z_vfs->mnt_flags &= ~MNT_READONLY;
else
- zfs_unlinked_drain(zfsvfs);
+ zfs_unlinked_drain(zsb);
/*
* Parse and replay the intent log.
@@ -1041,164 +869,51 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
* allocated and in the unlinked set, and there is an
* intent log record saying to allocate it.
*/
- if (spa_writeable(dmu_objset_spa(zfsvfs->z_os))) {
+ if (spa_writeable(dmu_objset_spa(zsb->z_os))) {
if (zil_replay_disable) {
- zil_destroy(zfsvfs->z_log, B_FALSE);
+ zil_destroy(zsb->z_log, B_FALSE);
} else {
- zfsvfs->z_replay = B_TRUE;
- zil_replay(zfsvfs->z_os, zfsvfs,
+ zsb->z_replay = B_TRUE;
+ zil_replay(zsb->z_os, zsb,
zfs_replay_vector);
- zfsvfs->z_replay = B_FALSE;
+ zsb->z_replay = B_FALSE;
}
}
- zfsvfs->z_vfs->vfs_flag |= readonly; /* restore readonly bit */
+ zsb->z_vfs->mnt_flags |= readonly; /* restore readonly bit */
}
return (0);
}
void
-zfsvfs_free(zfsvfs_t *zfsvfs)
+zfs_sb_free(zfs_sb_t *zsb)
{
int i;
- extern krwlock_t zfsvfs_lock; /* in zfs_znode.c */
- /*
- * This is a barrier to prevent the filesystem from going away in
- * zfs_znode_move() until we can safely ensure that the filesystem is
- * not unmounted. We consider the filesystem valid before the barrier
- * and invalid after the barrier.
- */
- rw_enter(&zfsvfs_lock, RW_READER);
- rw_exit(&zfsvfs_lock);
-
- zfs_fuid_destroy(zfsvfs);
+ zfs_fuid_destroy(zsb);
- mutex_destroy(&zfsvfs->z_znodes_lock);
- mutex_destroy(&zfsvfs->z_lock);
- list_destroy(&zfsvfs->z_all_znodes);
- rrw_destroy(&zfsvfs->z_teardown_lock);
- rw_destroy(&zfsvfs->z_teardown_inactive_lock);
- rw_destroy(&zfsvfs->z_fuid_lock);
+ mutex_destroy(&zsb->z_znodes_lock);
+ mutex_destroy(&zsb->z_lock);
+ list_destroy(&zsb->z_all_znodes);
+ rrw_destroy(&zsb->z_teardown_lock);
+ rw_destroy(&zsb->z_teardown_inactive_lock);
+ rw_destroy(&zsb->z_fuid_lock);
for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
- mutex_destroy(&zfsvfs->z_hold_mtx[i]);
- kmem_free(zfsvfs, sizeof (zfsvfs_t));
+ mutex_destroy(&zsb->z_hold_mtx[i]);
+ kmem_free(zsb, sizeof (zfs_sb_t));
}
static void
-zfs_set_fuid_feature(zfsvfs_t *zfsvfs)
-{
- zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os);
- if (zfsvfs->z_use_fuids && zfsvfs->z_vfs) {
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_XVATTR);
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_SYSATTR_VIEWS);
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACEMASKONACCESS);
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACLONCREATE);
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACCESS_FILTER);
- vfs_set_feature(zfsvfs->z_vfs, VFSFT_REPARSE);
- }
- zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os);
-}
-
-static int
-zfs_domount(vfs_t *vfsp, char *osname)
+zfs_set_fuid_feature(zfs_sb_t *zsb)
{
- dev_t mount_dev;
- uint64_t recordsize, fsid_guid;
- int error = 0;
- zfsvfs_t *zfsvfs;
-
- ASSERT(vfsp);
- ASSERT(osname);
-
- error = zfsvfs_create(osname, &zfsvfs);
- if (error)
- return (error);
- zfsvfs->z_vfs = vfsp;
-
- /* Initialize the generic filesystem structure. */
- vfsp->vfs_bcount = 0;
- vfsp->vfs_data = NULL;
-
- if (zfs_create_unique_device(&mount_dev) == -1) {
- error = ENODEV;
- goto out;
- }
- ASSERT(vfs_devismounted(mount_dev) == 0);
-
- if (error = dsl_prop_get_integer(osname, "recordsize", &recordsize,
- NULL))
- goto out;
-
- vfsp->vfs_dev = mount_dev;
- vfsp->vfs_fstype = zfsfstype;
- vfsp->vfs_bsize = recordsize;
- vfsp->vfs_flag |= VFS_NOTRUNC;
- vfsp->vfs_data = zfsvfs;
-
- /*
- * The fsid is 64 bits, composed of an 8-bit fs type, which
- * separates our fsid from any other filesystem types, and a
- * 56-bit objset unique ID. The objset unique ID is unique to
- * all objsets open on this system, provided by unique_create().
- * The 8-bit fs type must be put in the low bits of fsid[1]
- * because that's where other Solaris filesystems put it.
- */
- fsid_guid = dmu_objset_fsid_guid(zfsvfs->z_os);
- ASSERT((fsid_guid & ~((1ULL<<56)-1)) == 0);
- vfsp->vfs_fsid.val[0] = fsid_guid;
- vfsp->vfs_fsid.val[1] = ((fsid_guid>>32) << 8) |
- zfsfstype & 0xFF;
-
- /*
- * Set features for file system.
- */
- zfs_set_fuid_feature(zfsvfs);
- if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE) {
- vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
- vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
- vfs_set_feature(vfsp, VFSFT_NOCASESENSITIVE);
- } else if (zfsvfs->z_case == ZFS_CASE_MIXED) {
- vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
- vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
- }
- vfs_set_feature(vfsp, VFSFT_ZEROCOPY_SUPPORTED);
-
- if (dmu_objset_is_snapshot(zfsvfs->z_os)) {
- uint64_t pval;
-
- atime_changed_cb(zfsvfs, B_FALSE);
- readonly_changed_cb(zfsvfs, B_TRUE);
- if (error = dsl_prop_get_integer(osname, "xattr", &pval, NULL))
- goto out;
- xattr_changed_cb(zfsvfs, pval);
- zfsvfs->z_issnap = B_TRUE;
- zfsvfs->z_os->os_sync = ZFS_SYNC_DISABLED;
-
- mutex_enter(&zfsvfs->z_os->os_user_ptr_lock);
- dmu_objset_set_user(zfsvfs->z_os, zfsvfs);
- mutex_exit(&zfsvfs->z_os->os_user_ptr_lock);
- } else {
- error = zfsvfs_setup(zfsvfs, B_TRUE);
- }
-
- if (!zfsvfs->z_issnap)
- zfsctl_create(zfsvfs);
-out:
- if (error) {
- dmu_objset_disown(zfsvfs->z_os, zfsvfs);
- zfsvfs_free(zfsvfs);
- } else {
- atomic_add_32(&zfs_active_fs_count, 1);
- }
-
- return (error);
+ zsb->z_use_fuids = USE_FUIDS(zsb->z_version, zsb->z_os);
+ zsb->z_use_sa = USE_SA(zsb->z_version, zsb->z_os);
}
void
-zfs_unregister_callbacks(zfsvfs_t *zfsvfs)
+zfs_unregister_callbacks(zfs_sb_t *zsb)
{
- objset_t *os = zfsvfs->z_os;
+ objset_t *os = zsb->z_os;
struct dsl_dataset *ds;
/*
@@ -1207,92 +922,39 @@ zfs_unregister_callbacks(zfsvfs_t *zfsvfs)
if (!dmu_objset_is_snapshot(os)) {
ds = dmu_objset_ds(os);
VERIFY(dsl_prop_unregister(ds, "atime", atime_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "xattr", xattr_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "recordsize", blksz_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "readonly", readonly_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "devices", devices_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "setuid", setuid_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "exec", exec_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb,
- zfsvfs) == 0);
+ zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "aclinherit",
- acl_inherit_changed_cb, zfsvfs) == 0);
+ acl_inherit_changed_cb, zsb) == 0);
VERIFY(dsl_prop_unregister(ds, "vscan",
- vscan_changed_cb, zfsvfs) == 0);
+ vscan_changed_cb, zsb) == 0);
}
}
+EXPORT_SYMBOL(zfs_unregister_callbacks);
-/*
- * Convert a decimal digit string to a uint64_t integer.
- */
-static int
-str_to_uint64(char *str, uint64_t *objnum)
-{
- uint64_t num = 0;
-
- while (*str) {
- if (*str < '0' || *str > '9')
- return (EINVAL);
-
- num = num*10 + *str++ - '0';
- }
-
- *objnum = num;
- return (0);
-}
-
-/*
- * The boot path passed from the boot loader is in the form of
- * "rootpool-name/root-filesystem-object-number'. Convert this
- * string to a dataset name: "rootpool-name/root-filesystem-name".
- */
-static int
-zfs_parse_bootfs(char *bpath, char *outpath)
-{
- char *slashp;
- uint64_t objnum;
- int error;
-
- if (*bpath == 0 || *bpath == '/')
- return (EINVAL);
-
- (void) strcpy(outpath, bpath);
-
- slashp = strchr(bpath, '/');
-
- /* if no '/', just return the pool name */
- if (slashp == NULL) {
- return (0);
- }
-
- /* if not a number, just return the root dataset name */
- if (str_to_uint64(slashp+1, &objnum)) {
- return (0);
- }
-
- *slashp = '\0';
- error = dsl_dsobj_to_dsname(bpath, objnum, outpath);
- *slashp = '/';
-
- return (error);
-}
-
+#ifdef HAVE_MLSLABEL
/*
* zfs_check_global_label:
* Check that the hex label string is appropriate for the dataset
@@ -1320,337 +982,18 @@ zfs_check_global_label(const char *dsname, const char *hexsl)
}
return (EACCES);
}
+#endif /* HAVE_MLSLABEL */
-/*
- * zfs_mount_label_policy:
- * Determine whether the mount is allowed according to MAC check.
- * by comparing (where appropriate) label of the dataset against
- * the label of the zone being mounted into. If the dataset has
- * no label, create one.
- *
- * Returns:
- * 0 : access allowed
- * >0 : error code, such as EACCES
- */
-static int
-zfs_mount_label_policy(vfs_t *vfsp, char *osname)
-{
- int error, retv;
- zone_t *mntzone = NULL;
- ts_label_t *mnt_tsl;
- bslabel_t *mnt_sl;
- bslabel_t ds_sl;
- char ds_hexsl[MAXNAMELEN];
-
- retv = EACCES; /* assume the worst */
-
- /*
- * Start by getting the dataset label if it exists.
- */
- error = dsl_prop_get(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
- 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
- if (error)
- return (EACCES);
-
- /*
- * If labeling is NOT enabled, then disallow the mount of datasets
- * which have a non-default label already. No other label checks
- * are needed.
- */
- if (!is_system_labeled()) {
- if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0)
- return (0);
- return (EACCES);
- }
-
- /*
- * Get the label of the mountpoint. If mounting into the global
- * zone (i.e. mountpoint is not within an active zone and the
- * zoned property is off), the label must be default or
- * admin_low/admin_high only; no other checks are needed.
- */
- mntzone = zone_find_by_any_path(refstr_value(vfsp->vfs_mntpt), B_FALSE);
- if (mntzone->zone_id == GLOBAL_ZONEID) {
- uint64_t zoned;
-
- zone_rele(mntzone);
-
- if (dsl_prop_get_integer(osname,
- zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
- return (EACCES);
- if (!zoned)
- return (zfs_check_global_label(osname, ds_hexsl));
- else
- /*
- * This is the case of a zone dataset being mounted
- * initially, before the zone has been fully created;
- * allow this mount into global zone.
- */
- return (0);
- }
-
- mnt_tsl = mntzone->zone_slabel;
- ASSERT(mnt_tsl != NULL);
- label_hold(mnt_tsl);
- mnt_sl = label2bslabel(mnt_tsl);
-
- if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0) {
- /*
- * The dataset doesn't have a real label, so fabricate one.
- */
- char *str = NULL;
-
- if (l_to_str_internal(mnt_sl, &str) == 0 &&
- dsl_prop_set(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
- ZPROP_SRC_LOCAL, 1, strlen(str) + 1, str) == 0)
- retv = 0;
- if (str != NULL)
- kmem_free(str, strlen(str) + 1);
- } else if (hexstr_to_label(ds_hexsl, &ds_sl) == 0) {
- /*
- * Now compare labels to complete the MAC check. If the
- * labels are equal then allow access. If the mountpoint
- * label dominates the dataset label, allow readonly access.
- * Otherwise, access is denied.
- */
- if (blequal(mnt_sl, &ds_sl))
- retv = 0;
- else if (bldominates(mnt_sl, &ds_sl)) {
- vfs_setmntopt(vfsp, MNTOPT_RO, NULL, 0);
- retv = 0;
- }
- }
-
- label_rele(mnt_tsl);
- zone_rele(mntzone);
- return (retv);
-}
-
-static int
-zfs_mountroot(vfs_t *vfsp, enum whymountroot why)
-{
- int error = 0;
- static int zfsrootdone = 0;
- zfsvfs_t *zfsvfs = NULL;
- znode_t *zp = NULL;
- vnode_t *vp = NULL;
- char *zfs_bootfs;
- char *zfs_devid;
-
- ASSERT(vfsp);
-
- /*
- * The filesystem that we mount as root is defined in the
- * boot property "zfs-bootfs" with a format of
- * "poolname/root-dataset-objnum".
- */
- if (why == ROOT_INIT) {
- if (zfsrootdone++)
- return (EBUSY);
- /*
- * the process of doing a spa_load will require the
- * clock to be set before we could (for example) do
- * something better by looking at the timestamp on
- * an uberblock, so just set it to -1.
- */
- clkset(-1);
-
- if ((zfs_bootfs = spa_get_bootprop("zfs-bootfs")) == NULL) {
- cmn_err(CE_NOTE, "spa_get_bootfs: can not get "
- "bootfs name");
- return (EINVAL);
- }
- zfs_devid = spa_get_bootprop("diskdevid");
- error = spa_import_rootpool(rootfs.bo_name, zfs_devid);
- if (zfs_devid)
- spa_free_bootprop(zfs_devid);
- if (error) {
- spa_free_bootprop(zfs_bootfs);
- cmn_err(CE_NOTE, "spa_import_rootpool: error %d",
- error);
- return (error);
- }
- if (error = zfs_parse_bootfs(zfs_bootfs, rootfs.bo_name)) {
- spa_free_bootprop(zfs_bootfs);
- cmn_err(CE_NOTE, "zfs_parse_bootfs: error %d",
- error);
- return (error);
- }
-
- spa_free_bootprop(zfs_bootfs);
-
- if (error = vfs_lock(vfsp))
- return (error);
-
- if (error = zfs_domount(vfsp, rootfs.bo_name)) {
- cmn_err(CE_NOTE, "zfs_domount: error %d", error);
- goto out;
- }
-
- zfsvfs = (zfsvfs_t *)vfsp->vfs_data;
- ASSERT(zfsvfs);
- if (error = zfs_zget(zfsvfs, zfsvfs->z_root, &zp)) {
- cmn_err(CE_NOTE, "zfs_zget: error %d", error);
- goto out;
- }
-
- vp = ZTOV(zp);
- mutex_enter(&vp->v_lock);
- vp->v_flag |= VROOT;
- mutex_exit(&vp->v_lock);
- rootvp = vp;
-
- /*
- * Leave rootvp held. The root file system is never unmounted.
- */
-
- vfs_add((struct vnode *)0, vfsp,
- (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0);
-out:
- vfs_unlock(vfsp);
- return (error);
- } else if (why == ROOT_REMOUNT) {
- readonly_changed_cb(vfsp->vfs_data, B_FALSE);
- vfsp->vfs_flag |= VFS_REMOUNT;
-
- /* refresh mount options */
- zfs_unregister_callbacks(vfsp->vfs_data);
- return (zfs_register_callbacks(vfsp));
-
- } else if (why == ROOT_UNMOUNT) {
- zfs_unregister_callbacks((zfsvfs_t *)vfsp->vfs_data);
- (void) zfs_sync(vfsp, 0, 0);
- return (0);
- }
-
- /*
- * if "why" is equal to anything else other than ROOT_INIT,
- * ROOT_REMOUNT, or ROOT_UNMOUNT, we do not support it.
- */
- return (ENOTSUP);
-}
-
-/*ARGSUSED*/
-static int
-zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr)
-{
- char *osname;
- pathname_t spn;
- int error = 0;
- uio_seg_t fromspace = (uap->flags & MS_SYSSPACE) ?
- UIO_SYSSPACE : UIO_USERSPACE;
- int canwrite;
-
- if (mvp->v_type != VDIR)
- return (ENOTDIR);
-
- mutex_enter(&mvp->v_lock);
- if ((uap->flags & MS_REMOUNT) == 0 &&
- (uap->flags & MS_OVERLAY) == 0 &&
- (mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
- mutex_exit(&mvp->v_lock);
- return (EBUSY);
- }
- mutex_exit(&mvp->v_lock);
-
- /*
- * ZFS does not support passing unparsed data in via MS_DATA.
- * Users should use the MS_OPTIONSTR interface; this means
- * that all option parsing is already done and the options struct
- * can be interrogated.
- */
- if ((uap->flags & MS_DATA) && uap->datalen > 0)
- return (EINVAL);
-
- /*
- * Get the objset name (the "special" mount argument).
- */
- if (error = pn_get(uap->spec, fromspace, &spn))
- return (error);
-
- osname = spn.pn_path;
-
- /*
- * Check for mount privilege?
- *
- * If we don't have privilege then see if
- * we have local permission to allow it
- */
- error = secpolicy_fs_mount(cr, mvp, vfsp);
- if (error) {
- if (dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr) == 0) {
- vattr_t vattr;
-
- /*
- * Make sure user is the owner of the mount point
- * or has sufficient privileges.
- */
-
- vattr.va_mask = AT_UID;
-
- if (VOP_GETATTR(mvp, &vattr, 0, cr, NULL)) {
- goto out;
- }
-
- if (secpolicy_vnode_owner(cr, vattr.va_uid) != 0 &&
- VOP_ACCESS(mvp, VWRITE, 0, cr, NULL) != 0) {
- goto out;
- }
- secpolicy_fs_mount_clearopts(cr, vfsp);
- } else {
- goto out;
- }
- }
-
- /*
- * Refuse to mount a filesystem if we are in a local zone and the
- * dataset is not visible.
- */
- if (!INGLOBALZONE(curproc) &&
- (!zone_dataset_visible(osname, &canwrite) || !canwrite)) {
- error = EPERM;
- goto out;
- }
-
- error = zfs_mount_label_policy(vfsp, osname);
- if (error)
- goto out;
-
- /*
- * When doing a remount, we simply refresh our temporary properties
- * according to those options set in the current VFS options.
- */
- if (uap->flags & MS_REMOUNT) {
- /* refresh mount options */
- zfs_unregister_callbacks(vfsp->vfs_data);
- error = zfs_register_callbacks(vfsp);
- goto out;
- }
-
- error = zfs_domount(vfsp, osname);
-
- /*
- * Add an extra VFS_HOLD on our parent vfs so that it can't
- * disappear due to a forced unmount.
- */
- if (error == 0 && ((zfsvfs_t *)vfsp->vfs_data)->z_issnap)
- VFS_HOLD(mvp->v_vfsp);
-
-out:
- pn_free(&spn);
- return (error);
-}
-
-static int
-zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp)
+int
+zfs_statvfs(struct dentry *dentry, struct kstatfs *statp)
{
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
- dev32_t d32;
+ zfs_sb_t *zsb = dentry->d_sb->s_fs_info;
uint64_t refdbytes, availbytes, usedobjs, availobjs;
+ uint32_t bshift;
- ZFS_ENTER(zfsvfs);
+ ZFS_ENTER(zsb);
- dmu_objset_space(zfsvfs->z_os,
+ dmu_objset_space(zsb->z_os,
&refdbytes, &availbytes, &usedobjs, &availobjs);
/*
@@ -1659,16 +1002,17 @@ zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp)
* and we report our blocksize as the filesystem's maximum blocksize.
*/
statp->f_frsize = 1UL << SPA_MINBLOCKSHIFT;
- statp->f_bsize = zfsvfs->z_max_blksz;
+ statp->f_bsize = zsb->z_max_blksz;
+ bshift = fls(statp->f_bsize) - 1;
/*
- * The following report "total" blocks of various kinds in the
- * file system, but reported in terms of f_frsize - the
- * "fragment" size.
+ * The following report "total" blocks of various kinds in
+ * the file system, but reported in terms of f_bsize - the
+ * "preferred" size.
*/
- statp->f_blocks = (refdbytes + availbytes) >> SPA_MINBLOCKSHIFT;
- statp->f_bfree = availbytes >> SPA_MINBLOCKSHIFT;
+ statp->f_blocks = (refdbytes + availbytes) >> bshift;
+ statp->f_bfree = availbytes >> bshift;
statp->f_bavail = statp->f_bfree; /* no root reservation */
/*
@@ -1680,90 +1024,84 @@ zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp)
* and the number of blocks (each object will take at least a block).
*/
statp->f_ffree = MIN(availobjs, statp->f_bfree);
- statp->f_favail = statp->f_ffree; /* no "root reservation" */
statp->f_files = statp->f_ffree + usedobjs;
-
- (void) cmpldev(&d32, vfsp->vfs_dev);
- statp->f_fsid = d32;
+ statp->f_fsid.val[0] = 0; /* XXX: Map up some unique ID */
+ statp->f_fsid.val[1] = 0;
+ statp->f_type = ZFS_SUPER_MAGIC;
+ statp->f_namelen = ZFS_MAXNAMELEN;
/*
- * We're a zfs filesystem.
- */
- (void) strcpy(statp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name);
-
- statp->f_flag = vf_to_stf(vfsp->vfs_flag);
-
- statp->f_namemax = ZFS_MAXNAMELEN;
-
- /*
- * We have all of 32 characters to stuff a string here.
+ * We have all of 40 characters to stuff a string here.
* Is there anything useful we could/should provide?
*/
- bzero(statp->f_fstr, sizeof (statp->f_fstr));
+ bzero(statp->f_spare, sizeof (statp->f_spare));
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
return (0);
}
+EXPORT_SYMBOL(zfs_statvfs);
-static int
-zfs_root(vfs_t *vfsp, vnode_t **vpp)
+int
+zfs_root(zfs_sb_t *zsb, struct inode **ipp)
{
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
znode_t *rootzp;
int error;
- ZFS_ENTER(zfsvfs);
+ ZFS_ENTER(zsb);
- error = zfs_zget(zfsvfs, zfsvfs->z_root, &rootzp);
+ error = zfs_zget(zsb, zsb->z_root, &rootzp);
if (error == 0)
- *vpp = ZTOV(rootzp);
+ *ipp = ZTOI(rootzp);
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
return (error);
}
+EXPORT_SYMBOL(zfs_root);
/*
- * Teardown the zfsvfs::z_os.
+ * Teardown the zfs_sb_t::z_os.
*
* Note, if 'unmounting' if FALSE, we return with the 'z_teardown_lock'
* and 'z_teardown_inactive_lock' held.
*/
-static int
-zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting)
+int
+zfsvfs_teardown(zfs_sb_t *zsb, boolean_t unmounting)
{
znode_t *zp;
- rrw_enter(&zfsvfs->z_teardown_lock, RW_WRITER, FTAG);
+ rrw_enter(&zsb->z_teardown_lock, RW_WRITER, FTAG);
if (!unmounting) {
/*
- * We purge the parent filesystem's vfsp as the parent
- * filesystem and all of its snapshots have their vnode's
- * v_vfsp set to the parent's filesystem's vfsp. Note,
- * 'z_parent' is self referential for non-snapshots.
+ * We purge the parent filesystem's super block as the
+ * parent filesystem and all of its snapshots have their
+ * inode's super block set to the parent's filesystem's
+ * super block. Note, 'z_parent' is self referential
+ * for non-snapshots.
*/
- (void) dnlc_purge_vfsp(zfsvfs->z_parent->z_vfs, 0);
+ shrink_dcache_sb(zsb->z_parent->z_sb);
+ invalidate_inodes(zsb->z_parent->z_sb);
}
/*
* Close the zil. NB: Can't close the zil while zfs_inactive
* threads are blocked as zil_close can call zfs_inactive.
*/
- if (zfsvfs->z_log) {
- zil_close(zfsvfs->z_log);
- zfsvfs->z_log = NULL;
+ if (zsb->z_log) {
+ zil_close(zsb->z_log);
+ zsb->z_log = NULL;
}
- rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_WRITER);
+ rw_enter(&zsb->z_teardown_inactive_lock, RW_WRITER);
/*
* If we are not unmounting (ie: online recv) and someone already
* unmounted this file system while we were doing the switcheroo,
* or a reopen of z_os failed then just bail out now.
*/
- if (!unmounting && (zfsvfs->z_unmounted || zfsvfs->z_os == NULL)) {
- rw_exit(&zfsvfs->z_teardown_inactive_lock);
- rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
+ if (!unmounting && (zsb->z_unmounted || zsb->z_os == NULL)) {
+ rw_exit(&zsb->z_teardown_inactive_lock);
+ rrw_exit(&zsb->z_teardown_lock, FTAG);
return (EIO);
}
@@ -1774,14 +1112,14 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting)
*
* Release all holds on dbufs.
*/
- mutex_enter(&zfsvfs->z_znodes_lock);
- for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL;
- zp = list_next(&zfsvfs->z_all_znodes, zp))
+ mutex_enter(&zsb->z_znodes_lock);
+ for (zp = list_head(&zsb->z_all_znodes); zp != NULL;
+ zp = list_next(&zsb->z_all_znodes, zp))
if (zp->z_sa_hdl) {
- ASSERT(ZTOV(zp)->v_count > 0);
+ ASSERT(atomic_read(&ZTOI(zp)->i_count) > 0);
zfs_znode_dmu_fini(zp);
}
- mutex_exit(&zfsvfs->z_znodes_lock);
+ mutex_exit(&zsb->z_znodes_lock);
/*
* If we are unmounting, set the unmounted flag and let new vops
@@ -1789,96 +1127,142 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting)
* other vops will fail with EIO.
*/
if (unmounting) {
- zfsvfs->z_unmounted = B_TRUE;
- rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
- rw_exit(&zfsvfs->z_teardown_inactive_lock);
+ zsb->z_unmounted = B_TRUE;
+ rrw_exit(&zsb->z_teardown_lock, FTAG);
+ rw_exit(&zsb->z_teardown_inactive_lock);
}
/*
* z_os will be NULL if there was an error in attempting to reopen
- * zfsvfs, so just return as the properties had already been
+ * zsb, so just return as the properties had already been
+ *
* unregistered and cached data had been evicted before.
*/
- if (zfsvfs->z_os == NULL)
+ if (zsb->z_os == NULL)
return (0);
/*
* Unregister properties.
*/
- zfs_unregister_callbacks(zfsvfs);
+ zfs_unregister_callbacks(zsb);
/*
* Evict cached data
*/
- if (dmu_objset_is_dirty_anywhere(zfsvfs->z_os))
- if (!(zfsvfs->z_vfs->vfs_flag & VFS_RDONLY))
- txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
- (void) dmu_objset_evict_dbufs(zfsvfs->z_os);
+ if (dmu_objset_is_dirty_anywhere(zsb->z_os))
+ if (!(zsb->z_vfs->mnt_flags & MNT_READONLY))
+ txg_wait_synced(dmu_objset_pool(zsb->z_os), 0);
+ (void) dmu_objset_evict_dbufs(zsb->z_os);
return (0);
}
-/*ARGSUSED*/
-static int
-zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr)
+int
+zfs_domount(struct super_block *sb, void *data, int silent)
{
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
- objset_t *os;
- int ret;
-
- ret = secpolicy_fs_unmount(cr, vfsp);
- if (ret) {
- if (dsl_deleg_access((char *)refstr_value(vfsp->vfs_resource),
- ZFS_DELEG_PERM_MOUNT, cr))
- return (ret);
- }
+ zpl_mount_data_t *zmd = data;
+ const char *osname = zmd->z_osname;
+ zfs_sb_t *zsb;
+ struct inode *root_inode;
+ uint64_t recordsize;
+ int error;
/*
- * We purge the parent filesystem's vfsp as the parent filesystem
- * and all of its snapshots have their vnode's v_vfsp set to the
- * parent's filesystem's vfsp. Note, 'z_parent' is self
- * referential for non-snapshots.
+ * Linux allows multiple vfs mounts per super block. However, the
+ * zfs_sb_t only contains a pointer for a single vfs mount. This
+ * back reference in the long term could be extended to a list of
+ * vfs mounts if a hook were added to the kernel to notify us when
+ * a vfsmount is destroyed. Until then we must limit the number
+ * of mounts per super block to one.
*/
- (void) dnlc_purge_vfsp(zfsvfs->z_parent->z_vfs, 0);
+ if (atomic_read(&sb->s_active) > 1)
+ return (EBUSY);
- /*
- * Unmount any snapshots mounted under .zfs before unmounting the
- * dataset itself.
- */
- if (zfsvfs->z_ctldir != NULL &&
- (ret = zfsctl_umount_snapshots(vfsp, fflag, cr)) != 0) {
- return (ret);
+ error = zfs_sb_create(osname, &zsb);
+ if (error)
+ return (error);
+
+ if ((error = dsl_prop_get_integer(osname, "recordsize",
+ &recordsize, NULL)))
+ goto out;
+
+ zsb->z_sb = sb;
+ zsb->z_vfs = zmd->z_vfs;
+ sb->s_fs_info = zsb;
+ sb->s_magic = ZFS_SUPER_MAGIC;
+ sb->s_maxbytes = MAX_LFS_FILESIZE;
+ sb->s_time_gran = 1;
+ sb->s_blocksize = recordsize;
+ sb->s_blocksize_bits = ilog2(recordsize);
+
+ /* Set callback operations for the file system. */
+ sb->s_op = &zpl_super_operations;
+ sb->s_xattr = zpl_xattr_handlers;
+#ifdef HAVE_EXPORTS
+ sb->s_export_op = &zpl_export_operations;
+#endif /* HAVE_EXPORTS */
+
+ /* Set features for file system. */
+ zfs_set_fuid_feature(zsb);
+
+ if (dmu_objset_is_snapshot(zsb->z_os)) {
+ uint64_t pval;
+
+ atime_changed_cb(zsb, B_FALSE);
+ readonly_changed_cb(zsb, B_TRUE);
+ if ((error = dsl_prop_get_integer(osname,"xattr",&pval,NULL)))
+ goto out;
+ xattr_changed_cb(zsb, pval);
+ zsb->z_issnap = B_TRUE;
+ zsb->z_os->os_sync = ZFS_SYNC_DISABLED;
+
+ mutex_enter(&zsb->z_os->os_user_ptr_lock);
+ dmu_objset_set_user(zsb->z_os, zsb);
+ mutex_exit(&zsb->z_os->os_user_ptr_lock);
+ } else {
+ error = zfs_sb_setup(zsb, B_TRUE);
+#ifdef HAVE_SNAPSHOT
+ (void) zfs_snap_create(zsb);
+#endif /* HAVE_SNAPSHOT */
}
- if (!(fflag & MS_FORCE)) {
- /*
- * Check the number of active vnodes in the file system.
- * Our count is maintained in the vfs structure, but the
- * number is off by 1 to indicate a hold on the vfs
- * structure itself.
- *
- * The '.zfs' directory maintains a reference of its
- * own, and any active references underneath are
- * reflected in the vnode count.
- */
- if (zfsvfs->z_ctldir == NULL) {
- if (vfsp->vfs_count > 1)
- return (EBUSY);
- } else {
- if (vfsp->vfs_count > 2 ||
- zfsvfs->z_ctldir->v_count > 1)
- return (EBUSY);
- }
+ /* Allocate a root inode for the filesystem. */
+ error = zfs_root(zsb, &root_inode);
+ if (error) {
+ (void) zfs_umount(sb);
+ goto out;
+ }
+
+ /* Allocate a root dentry for the filesystem */
+ sb->s_root = d_alloc_root(root_inode);
+ if (sb->s_root == NULL) {
+ (void) zfs_umount(sb);
+ error = ENOMEM;
+ goto out;
+ }
+out:
+ if (error) {
+ dmu_objset_disown(zsb->z_os, zsb);
+ zfs_sb_free(zsb);
}
- vfsp->vfs_flag |= VFS_UNMOUNTED;
+ return (error);
+}
+EXPORT_SYMBOL(zfs_domount);
+
+/*ARGSUSED*/
+int
+zfs_umount(struct super_block *sb)
+{
+ zfs_sb_t *zsb = sb->s_fs_info;
+ objset_t *os;
- VERIFY(zfsvfs_teardown(zfsvfs, B_TRUE) == 0);
- os = zfsvfs->z_os;
+ VERIFY(zfsvfs_teardown(zsb, B_TRUE) == 0);
+ os = zsb->z_os;
/*
* z_os will be NULL if there was an error in
- * attempting to reopen zfsvfs.
+ * attempting to reopen zsb.
*/
if (os != NULL) {
/*
@@ -1891,32 +1275,28 @@ zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr)
/*
* Finally release the objset
*/
- dmu_objset_disown(os, zfsvfs);
+ dmu_objset_disown(os, zsb);
}
- /*
- * We can now safely destroy the '.zfs' directory node.
- */
- if (zfsvfs->z_ctldir != NULL)
- zfsctl_destroy(zfsvfs);
-
+ zfs_sb_free(zsb);
return (0);
}
+EXPORT_SYMBOL(zfs_umount);
-static int
-zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp)
+int
+zfs_vget(struct vfsmount *vfsp, struct inode **ipp, fid_t *fidp)
{
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
+ zfs_sb_t *zsb = VTOZSB(vfsp);
znode_t *zp;
uint64_t object = 0;
uint64_t fid_gen = 0;
uint64_t gen_mask;
uint64_t zp_gen;
- int i, err;
+ int i, err;
- *vpp = NULL;
+ *ipp = NULL;
- ZFS_ENTER(zfsvfs);
+ ZFS_ENTER(zsb);
if (fidp->fid_len == LONG_FID_LEN) {
zfid_long_t *zlfid = (zfid_long_t *)fidp;
@@ -1929,12 +1309,14 @@ zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp)
for (i = 0; i < sizeof (zlfid->zf_setgen); i++)
setgen |= ((uint64_t)zlfid->zf_setgen[i]) << (8 * i);
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
- err = zfsctl_lookup_objset(vfsp, objsetid, &zfsvfs);
+#ifdef HAVE_SNAPSHOT
+ err = zfsctl_lookup_objset(vfsp, objsetid, &zsb);
if (err)
return (EINVAL);
- ZFS_ENTER(zfsvfs);
+#endif /* HAVE_SNAPSHOT */
+ ZFS_ENTER(zsb);
}
if (fidp->fid_len == SHORT_FID_LEN || fidp->fid_len == LONG_FID_LEN) {
@@ -1946,98 +1328,104 @@ zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp)
for (i = 0; i < sizeof (zfid->zf_gen); i++)
fid_gen |= ((uint64_t)zfid->zf_gen[i]) << (8 * i);
} else {
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
return (EINVAL);
}
+#ifdef HAVE_SNAPSHOT
/* A zero fid_gen means we are in the .zfs control directories */
if (fid_gen == 0 &&
(object == ZFSCTL_INO_ROOT || object == ZFSCTL_INO_SNAPDIR)) {
- *vpp = zfsvfs->z_ctldir;
- ASSERT(*vpp != NULL);
+ *ipp = zsb->z_ctldir;
+ ASSERT(*ipp != NULL);
if (object == ZFSCTL_INO_SNAPDIR) {
- VERIFY(zfsctl_root_lookup(*vpp, "snapshot", vpp, NULL,
+ VERIFY(zfsctl_root_lookup(*ipp, "snapshot", ipp, NULL,
0, NULL, NULL, NULL, NULL, NULL) == 0);
} else {
- VN_HOLD(*vpp);
+ igrab(*ipp);
}
- ZFS_EXIT(zfsvfs);
+ ZFS_EXIT(zsb);
return (0);
}
+#endif /* HAVE_SNAPSHOT */
gen_mask = -1ULL >> (64 - 8 * i);
dprintf("getting %llu [%u mask %llx]\n", object, fid_gen, gen_mask);
- if (err = zfs_zget(zfsvfs, object, &zp)) {
- ZFS_EXIT(zfsvfs);
+ if ((err = zfs_zget(zsb, object, &zp))) {
+ ZFS_EXIT(zsb);
return (err);
}
- (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zfsvfs), &zp_gen,
+ (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zsb), &zp_gen,
sizeof (uint64_t));
zp_gen = zp_gen & gen_mask;
if (zp_gen == 0)
zp_gen = 1;
if (zp->z_unlinked || zp_gen != fid_gen) {
dprintf("znode gen (%u) != fid gen (%u)\n", zp_gen, fid_gen);
- VN_RELE(ZTOV(zp));
- ZFS_EXIT(zfsvfs);
+ iput(ZTOI(zp));
+ ZFS_EXIT(zsb);
return (EINVAL);
}
- *vpp = ZTOV(zp);
- ZFS_EXIT(zfsvfs);
+ *ipp = ZTOI(zp);
+ if (*ipp)
+ zfs_inode_update(ITOZ(*ipp));
+
+ ZFS_EXIT(zsb);
return (0);
}
+EXPORT_SYMBOL(zfs_vget);
/*
- * Block out VOPs and close zfsvfs_t::z_os
+ * Block out VOPs and close zfs_sb_t::z_os
*
* Note, if successful, then we return with the 'z_teardown_lock' and
* 'z_teardown_inactive_lock' write held.
*/
int
-zfs_suspend_fs(zfsvfs_t *zfsvfs)
+zfs_suspend_fs(zfs_sb_t *zsb)
{
int error;
- if ((error = zfsvfs_teardown(zfsvfs, B_FALSE)) != 0)
+ if ((error = zfsvfs_teardown(zsb, B_FALSE)) != 0)
return (error);
- dmu_objset_disown(zfsvfs->z_os, zfsvfs);
+ dmu_objset_disown(zsb->z_os, zsb);
return (0);
}
+EXPORT_SYMBOL(zfs_suspend_fs);
/*
- * Reopen zfsvfs_t::z_os and release VOPs.
+ * Reopen zfs_sb_t::z_os and release VOPs.
*/
int
-zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname)
+zfs_resume_fs(zfs_sb_t *zsb, const char *osname)
{
int err, err2;
- ASSERT(RRW_WRITE_HELD(&zfsvfs->z_teardown_lock));
- ASSERT(RW_WRITE_HELD(&zfsvfs->z_teardown_inactive_lock));
+ ASSERT(RRW_WRITE_HELD(&zsb->z_teardown_lock));
+ ASSERT(RW_WRITE_HELD(&zsb->z_teardown_inactive_lock));
- err = dmu_objset_own(osname, DMU_OST_ZFS, B_FALSE, zfsvfs,
- &zfsvfs->z_os);
+ err = dmu_objset_own(osname, DMU_OST_ZFS, B_FALSE, zsb, &zsb->z_os);
if (err) {
- zfsvfs->z_os = NULL;
+ zsb->z_os = NULL;
} else {
znode_t *zp;
uint64_t sa_obj = 0;
- err2 = zap_lookup(zfsvfs->z_os, MASTER_NODE_OBJ,
+ err2 = zap_lookup(zsb->z_os, MASTER_NODE_OBJ,
ZFS_SA_ATTRS, 8, 1, &sa_obj);
- if ((err || err2) && zfsvfs->z_version >= ZPL_VERSION_SA)
+ if ((err || err2) && zsb->z_version >= ZPL_VERSION_SA)
goto bail;
- if ((err = sa_setup(zfsvfs->z_os, sa_obj,
- zfs_attr_table, ZPL_END, &zfsvfs->z_attr_table)) != 0)
+ if ((err = sa_setup(zsb->z_os, sa_obj,
+ zfs_attr_table, ZPL_END, &zsb->z_attr_table)) != 0)
goto bail;
- VERIFY(zfsvfs_setup(zfsvfs, B_FALSE) == 0);
+ VERIFY(zfs_sb_setup(zsb, B_FALSE) == 0);
/*
* Attempt to re-establish all the active znodes with
@@ -2045,141 +1433,51 @@ zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname)
* any potential callers discover that via ZFS_ENTER_VERIFY_VP
* when they try to use their znode.
*/
- mutex_enter(&zfsvfs->z_znodes_lock);
- for (zp = list_head(&zfsvfs->z_all_znodes); zp;
- zp = list_next(&zfsvfs->z_all_znodes, zp)) {
+ mutex_enter(&zsb->z_znodes_lock);
+ for (zp = list_head(&zsb->z_all_znodes); zp;
+ zp = list_next(&zsb->z_all_znodes, zp)) {
(void) zfs_rezget(zp);
}
- mutex_exit(&zfsvfs->z_znodes_lock);
+ mutex_exit(&zsb->z_znodes_lock);
}
bail:
/* release the VOPs */
- rw_exit(&zfsvfs->z_teardown_inactive_lock);
- rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
+ rw_exit(&zsb->z_teardown_inactive_lock);
+ rrw_exit(&zsb->z_teardown_lock, FTAG);
if (err) {
/*
- * Since we couldn't reopen zfsvfs::z_os, force
+ * Since we couldn't reopen zfs_sb_t::z_os, force
* unmount this file system.
*/
- if (vn_vfswlock(zfsvfs->z_vfs->vfs_vnodecovered) == 0)
- (void) dounmount(zfsvfs->z_vfs, MS_FORCE, CRED());
+ (void) zfs_umount(zsb->z_sb);
}
return (err);
}
+EXPORT_SYMBOL(zfs_resume_fs);
-static void
-zfs_freevfs(vfs_t *vfsp)
-{
- zfsvfs_t *zfsvfs = vfsp->vfs_data;
-
- /*
- * If this is a snapshot, we have an extra VFS_HOLD on our parent
- * from zfs_mount(). Release it here. If we came through
- * zfs_mountroot() instead, we didn't grab an extra hold, so
- * skip the VFS_RELE for rootvfs.
- */
- if (zfsvfs->z_issnap && (vfsp != rootvfs))
- VFS_RELE(zfsvfs->z_parent->z_vfs);
-
- zfsvfs_free(zfsvfs);
-
- atomic_add_32(&zfs_active_fs_count, -1);
-}
-
-/*
- * VFS_INIT() initialization. Note that there is no VFS_FINI(),
- * so we can't safely do any non-idempotent initialization here.
- * Leave that to zfs_init() and zfs_fini(), which are called
- * from the module's _init() and _fini() entry points.
- */
-/*ARGSUSED*/
-static int
-zfs_vfsinit(int fstype, char *name)
-{
- int error;
-
- zfsfstype = fstype;
-
- /*
- * Setup vfsops and vnodeops tables.
- */
- error = vfs_setfsops(fstype, zfs_vfsops_template, &zfs_vfsops);
- if (error != 0) {
- cmn_err(CE_WARN, "zfs: bad vfs ops template");
- }
-
- error = zfs_create_op_tables();
- if (error) {
- zfs_remove_op_tables();
- cmn_err(CE_WARN, "zfs: bad vnode ops template");
- (void) vfs_freevfsops_by_type(zfsfstype);
- return (error);
- }
-
- mutex_init(&zfs_dev_mtx, NULL, MUTEX_DEFAULT, NULL);
-
- /*
- * Unique major number for all zfs mounts.
- * If we run out of 32-bit minors, we'll getudev() another major.
- */
- zfs_major = ddi_name_to_major(ZFS_DRIVER);
- zfs_minor = ZFS_MIN_MINOR;
-
- return (0);
-}
-#endif /* HAVE_ZPL */
-
-void
-zfs_init(void)
-{
-#ifdef HAVE_ZPL
- /*
- * Initialize .zfs directory structures
- */
- zfsctl_init();
-
- /*
- * Initialize znode cache, vnode ops, etc...
- */
- zfs_znode_init();
-#endif /* HAVE_ZPL */
-
- dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
-}
-
-void
-zfs_fini(void)
-{
-#ifdef HAVE_ZPL
- zfsctl_fini();
- zfs_znode_fini();
-#endif /* HAVE_ZPL */
-}
-
-#ifdef HAVE_ZPL
int
-zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
+zfs_set_version(zfs_sb_t *zsb, uint64_t newvers)
{
int error;
- objset_t *os = zfsvfs->z_os;
+ objset_t *os = zsb->z_os;
dmu_tx_t *tx;
if (newvers < ZPL_VERSION_INITIAL || newvers > ZPL_VERSION)
return (EINVAL);
- if (newvers < zfsvfs->z_version)
+ if (newvers < zsb->z_version)
return (EINVAL);
if (zfs_spa_version_map(newvers) >
- spa_version(dmu_objset_spa(zfsvfs->z_os)))
+ spa_version(dmu_objset_spa(zsb->z_os)))
return (ENOTSUP);
tx = dmu_tx_create(os);
dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_FALSE, ZPL_VERSION_STR);
- if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) {
+ if (newvers >= ZPL_VERSION_SA && !zsb->z_use_sa) {
dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE,
ZFS_SA_ATTRS);
dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL);
@@ -2198,10 +1496,10 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
return (error);
}
- if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) {
+ if (newvers >= ZPL_VERSION_SA && !zsb->z_use_sa) {
uint64_t sa_obj;
- ASSERT3U(spa_version(dmu_objset_spa(zfsvfs->z_os)), >=,
+ ASSERT3U(spa_version(dmu_objset_spa(zsb->z_os)), >=,
SPA_VERSION_SA);
sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE,
DMU_OT_NONE, 0, tx);
@@ -2216,18 +1514,18 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
spa_history_log_internal(LOG_DS_UPGRADE,
dmu_objset_spa(os), tx, "oldver=%llu newver=%llu dataset = %llu",
- zfsvfs->z_version, newvers, dmu_objset_id(os));
+ zsb->z_version, newvers, dmu_objset_id(os));
dmu_tx_commit(tx);
- zfsvfs->z_version = newvers;
+ zsb->z_version = newvers;
- if (zfsvfs->z_version >= ZPL_VERSION_FUID)
- zfs_set_fuid_feature(zfsvfs);
+ if (zsb->z_version >= ZPL_VERSION_FUID)
+ zfs_set_fuid_feature(zsb);
return (0);
}
-#endif /* HAVE_ZPL */
+EXPORT_SYMBOL(zfs_set_version);
/*
* Read a property stored within the master node.
@@ -2271,17 +1569,17 @@ zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value)
return (error);
}
-#ifdef HAVE_ZPL
-static vfsdef_t vfw = {
- VFSDEF_VERSION,
- MNTTYPE_ZFS,
- zfs_vfsinit,
- VSW_HASPROTO|VSW_CANRWRO|VSW_CANREMOUNT|VSW_VOLATILEDEV|VSW_STATS|
- VSW_XID|VSW_ZMOUNT,
- &zfs_mntopts
-};
-
-struct modlfs zfs_modlfs = {
- &mod_fsops, "ZFS filesystem version " SPA_VERSION_STRING, &vfw
-};
-#endif /* HAVE_ZPL */
+void
+zfs_init(void)
+{
+ zfs_znode_init();
+ dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
+ register_filesystem(&zpl_fs_type);
+}
+
+void
+zfs_fini(void)
+{
+ unregister_filesystem(&zpl_fs_type);
+ zfs_znode_fini();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 14:21:25 +0000