Add linux user disk support

[zfs.git] / module / zfs / zfs_vfsops.c

diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index f68dde8..7e4e82f 100644 (file)
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -65,6 +65,7 @@
 #include <sys/sa.h>
 #include "zfs_comutil.h"
 
+#ifdef HAVE_ZPL
 int zfsfstype;
 vfsops_t *zfs_vfsops = NULL;
 static major_t zfs_major;
@@ -166,7 +167,7 @@ zfs_sync(vfs_t *vfsp, short flag, cred_t *cr)
                }
 
                if (zfsvfs->z_log != NULL)
-                       zil_commit(zfsvfs->z_log, UINT64_MAX, 0);
+                       zil_commit(zfsvfs->z_log, 0);
 
                ZFS_EXIT(zfsvfs);
        } else {
@@ -417,7 +418,8 @@ zfs_register_callbacks(vfs_t *vfsp)
         * of mount options, we stash away the current values and
         * restore them after we register the callbacks.
         */
-       if (vfs_optionisset(vfsp, MNTOPT_RO, NULL)) {
+       if (vfs_optionisset(vfsp, MNTOPT_RO, NULL) ||
+           !spa_writeable(dmu_objset_spa(os))) {
                readonly = B_TRUE;
                do_readonly = B_TRUE;
        } else if (vfs_optionisset(vfsp, MNTOPT_RW, NULL)) {
@@ -821,23 +823,14 @@ zfs_owner_overquota(zfsvfs_t *zfsvfs, znode_t *zp, boolean_t isgroup)
 {
        uint64_t fuid;
        uint64_t quotaobj;
-       uid_t id;
 
        quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
 
-       id = isgroup ? zp->z_gid : zp->z_uid;
+       fuid = isgroup ? zp->z_gid : zp->z_uid;
 
        if (quotaobj == 0 || zfsvfs->z_replay)
                return (B_FALSE);
 
-       if (IS_EPHEMERAL(id)) {
-               VERIFY(0 == sa_lookup(zp->z_sa_hdl,
-                   isgroup ? SA_ZPL_GID(zfsvfs) : SA_ZPL_UID(zfsvfs),
-                   &fuid, sizeof (fuid)));
-       } else {
-               fuid = (uint64_t)id;
-       }
-
        return (zfs_fuid_overquota(zfsvfs, isgroup, fuid));
 }
 
@@ -922,7 +915,10 @@ zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
                sa_obj = 0;
        }
 
-       zfsvfs->z_attr_table = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END);
+       error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
+           &zfsvfs->z_attr_table);
+       if (error)
+               goto out;
 
        if (zfsvfs->z_version >= ZPL_VERSION_SA)
                sa_register_update_callback(os, zfs_sa_upgrade);
@@ -1043,12 +1039,15 @@ 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 (zil_replay_disable) {
-                       zil_destroy(zfsvfs->z_log, B_FALSE);
-               } else {
-                       zfsvfs->z_replay = B_TRUE;
-                       zil_replay(zfsvfs->z_os, zfsvfs, zfs_replay_vector);
-                       zfsvfs->z_replay = B_FALSE;
+               if (spa_writeable(dmu_objset_spa(zfsvfs->z_os))) {
+                       if (zil_replay_disable) {
+                               zil_destroy(zfsvfs->z_log, B_FALSE);
+                       } else {
+                               zfsvfs->z_replay = B_TRUE;
+                               zil_replay(zfsvfs->z_os, zfsvfs,
+                                   zfs_replay_vector);
+                               zfsvfs->z_replay = B_FALSE;
+                       }
                }
                zfsvfs->z_vfs->vfs_flag |= readonly; /* restore readonly bit */
        }
@@ -1172,6 +1171,7 @@ zfs_domount(vfs_t *vfsp, char *osname)
                        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);
@@ -1808,10 +1808,10 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting)
        /*
         * Evict cached data
         */
-       if (dmu_objset_evict_dbufs(zfsvfs->z_os)) {
-               txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
-               (void) dmu_objset_evict_dbufs(zfsvfs->z_os);
-       }
+       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);
 
        return (0);
 }
@@ -2031,8 +2031,9 @@ zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname)
                        goto bail;
 
 
-               zfsvfs->z_attr_table = sa_setup(zfsvfs->z_os, sa_obj,
-                   zfs_attr_table,  ZPL_END);
+               if ((err = sa_setup(zfsvfs->z_os, sa_obj,
+                   zfs_attr_table,  ZPL_END, &zfsvfs->z_attr_table)) != 0)
+                       goto bail;
 
                VERIFY(zfsvfs_setup(zfsvfs, B_FALSE) == 0);
 
@@ -2127,10 +2128,12 @@ zfs_vfsinit(int fstype, char *name)
 
        return (0);
 }
+#endif /* HAVE_ZPL */
 
 void
 zfs_init(void)
 {
+#ifdef HAVE_ZPL
        /*
         * Initialize .zfs directory structures
         */
@@ -2142,21 +2145,19 @@ zfs_init(void)
        zfs_znode_init();
 
        dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
+#endif /* HAVE_ZPL */
 }
 
 void
 zfs_fini(void)
 {
+#ifdef HAVE_ZPL
        zfsctl_fini();
        zfs_znode_fini();
+#endif /* HAVE_ZPL */
 }
 
-int
-zfs_busy(void)
-{
-       return (zfs_active_fs_count != 0);
-}
-
+#ifdef HAVE_ZPL
 int
 zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
 {
@@ -2224,6 +2225,7 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
 
        return (0);
 }
+#endif /* HAVE_ZPL */
 
 /*
  * Read a property stored within the master node.
@@ -2267,15 +2269,17 @@ 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_XID|VSW_ZMOUNT,
        &zfs_mntopts
 };
 
 struct modlfs zfs_modlfs = {
        &mod_fsops, "ZFS filesystem version " SPA_VERSION_STRING, &vfw
 };
+#endif /* HAVE_ZPL */