zsb->z_sb->s_flags &= ~MS_POSIXACL;
break;
case ZFS_ACLTYPE_POSIXACL:
+#ifdef CONFIG_FS_POSIX_ACL
zsb->z_acl_type = ZFS_ACLTYPE_POSIXACL;
zsb->z_sb->s_flags |= MS_POSIXACL;
+#else
+ zsb->z_acl_type = ZFS_ACLTYPE_OFF;
+ zsb->z_sb->s_flags &= ~MS_POSIXACL;
+#endif /* CONFIG_FS_POSIX_ACL */
break;
default:
break;
#ifdef HAVE_MLSLABEL
/*
- * zfs_check_global_label:
- * Check that the hex label string is appropriate for the dataset
- * being mounted into the global_zone proper.
+ * Check that the hex label string is appropriate for the dataset being
+ * mounted into the global_zone proper.
*
- * Return an error if the hex label string is not default or
- * admin_low/admin_high. For admin_low labels, the corresponding
- * dataset must be readonly.
+ * Return an error if the hex label string is not default or
+ * admin_low/admin_high. For admin_low labels, the corresponding
+ * dataset must be readonly.
*/
int
zfs_check_global_label(const char *dsname, const char *hexsl)
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(atomic_read(&ZTOI(zp)->i_count) > 0);
+ if (zp->z_sa_hdl)
zfs_znode_dmu_fini(zp);
- }
}
mutex_exit(&zsb->z_znodes_lock);
atime_changed_cb(zsb, B_FALSE);
readonly_changed_cb(zsb, B_TRUE);
- if ((error = dsl_prop_get_integer(osname,"xattr",&pval,NULL)))
+ if ((error = dsl_prop_get_integer(osname,
+ "xattr", &pval, NULL)))
goto out;
xattr_changed_cb(zsb, pval);
- if ((error = dsl_prop_get_integer(osname,"acltype",&pval,NULL)))
+ if ((error = dsl_prop_get_integer(osname,
+ "acltype", &pval, NULL)))
goto out;
acltype_changed_cb(zsb, pval);
zsb->z_issnap = B_TRUE;
* Block out VFS ops and close zfs_sb_t
*
* Note, if successful, then we return with the 'z_teardown_lock' and
- * 'z_teardown_inactive_lock' write held.
+ * 'z_teardown_inactive_lock' write held. We leave ownership of the underlying
+ * dataset and objset intact so that they can be atomically handed off during
+ * a subsequent rollback or recv operation and the resume thereafter.
*/
int
zfs_suspend_fs(zfs_sb_t *zsb)
if ((error = zfs_sb_teardown(zsb, B_FALSE)) != 0)
return (error);
- dmu_objset_disown(zsb->z_os, zsb);
-
return (0);
}
EXPORT_SYMBOL(zfs_suspend_fs);
int
zfs_resume_fs(zfs_sb_t *zsb, const char *osname)
{
- int err;
+ int err, err2;
+ znode_t *zp;
+ uint64_t sa_obj = 0;
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, zsb, &zsb->z_os);
- if (err) {
- zsb->z_os = NULL;
- } else {
- znode_t *zp;
- uint64_t sa_obj = 0;
+ /*
+ * We already own this, so just hold and rele it to update the
+ * objset_t, as the one we had before may have been evicted.
+ */
+ VERIFY0(dmu_objset_hold(osname, zsb, &zsb->z_os));
+ VERIFY3P(zsb->z_os->os_dsl_dataset->ds_owner, ==, zsb);
+ VERIFY(dsl_dataset_long_held(zsb->z_os->os_dsl_dataset));
+ dmu_objset_rele(zsb->z_os, zsb);
- /*
- * Make sure version hasn't changed
- */
+ /*
+ * Make sure version hasn't changed
+ */
- err = zfs_get_zplprop(zsb->z_os, ZFS_PROP_VERSION,
- &zsb->z_version);
+ err = zfs_get_zplprop(zsb->z_os, ZFS_PROP_VERSION,
+ &zsb->z_version);
- if (err)
- goto bail;
+ if (err)
+ goto bail;
- err = zap_lookup(zsb->z_os, MASTER_NODE_OBJ,
- ZFS_SA_ATTRS, 8, 1, &sa_obj);
+ err = zap_lookup(zsb->z_os, MASTER_NODE_OBJ,
+ ZFS_SA_ATTRS, 8, 1, &sa_obj);
- if (err && zsb->z_version >= ZPL_VERSION_SA)
- goto bail;
+ if (err && zsb->z_version >= ZPL_VERSION_SA)
+ goto bail;
- if ((err = sa_setup(zsb->z_os, sa_obj,
- zfs_attr_table, ZPL_END, &zsb->z_attr_table)) != 0)
- goto bail;
+ if ((err = sa_setup(zsb->z_os, sa_obj,
+ zfs_attr_table, ZPL_END, &zsb->z_attr_table)) != 0)
+ goto bail;
- if (zsb->z_version >= ZPL_VERSION_SA)
- sa_register_update_callback(zsb->z_os,
- zfs_sa_upgrade);
+ if (zsb->z_version >= ZPL_VERSION_SA)
+ sa_register_update_callback(zsb->z_os,
+ zfs_sa_upgrade);
- VERIFY(zfs_sb_setup(zsb, B_FALSE) == 0);
+ VERIFY(zfs_sb_setup(zsb, B_FALSE) == 0);
- zfs_set_fuid_feature(zsb);
- zsb->z_rollback_time = jiffies;
+ zfs_set_fuid_feature(zsb);
+ zsb->z_rollback_time = jiffies;
- /*
- * Attempt to re-establish all the active inodes with their
- * dbufs. If a zfs_rezget() fails, then we unhash the inode
- * and mark it stale. This prevents a collision if a new
- * inode/object is created which must use the same inode
- * number. The stale inode will be be released when the
- * VFS prunes the dentry holding the remaining references
- * on the stale inode.
- */
- mutex_enter(&zsb->z_znodes_lock);
- for (zp = list_head(&zsb->z_all_znodes); zp;
- zp = list_next(&zsb->z_all_znodes, zp)) {
- err2 = zfs_rezget(zp);
- if (err2) {
- remove_inode_hash(ZTOI(zp));
- zp->z_is_stale = B_TRUE;
- }
+ /*
+ * Attempt to re-establish all the active inodes with their
+ * dbufs. If a zfs_rezget() fails, then we unhash the inode
+ * and mark it stale. This prevents a collision if a new
+ * inode/object is created which must use the same inode
+ * number. The stale inode will be be released when the
+ * VFS prunes the dentry holding the remaining references
+ * on the stale inode.
+ */
+ mutex_enter(&zsb->z_znodes_lock);
+ for (zp = list_head(&zsb->z_all_znodes); zp;
+ zp = list_next(&zsb->z_all_znodes, zp)) {
+ err2 = zfs_rezget(zp);
+ if (err2) {
+ remove_inode_hash(ZTOI(zp));
+ zp->z_is_stale = B_TRUE;
}
- mutex_exit(&zsb->z_znodes_lock);
}
+ mutex_exit(&zsb->z_znodes_lock);
bail:
/* release the VFS ops */
if (err) {
/*
- * Since we couldn't reopen zfs_sb_t or, or
- * setup the sa framework force unmount this file system.
+ * Since we couldn't setup the sa framework, try to force
+ * unmount this file system.
*/
if (zsb->z_os)
(void) zfs_umount(zsb->z_sb);
projects / mirror_zfs.git / blobdiff