Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

[mirror_ubuntu-artful-kernel.git] / fs / xfs / xfs_mount.c

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 7147d4a8d207d3a4b261b438afbeb7f8bf66b40d..43d07f9c4e9ed1fbca5b25bdc021b7900fe18f07 100644 (file)
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -74,20 +74,19 @@ xfs_uuid_mount(
        int                     hole, i;
 
        /* Publish UUID in struct super_block */
-       BUILD_BUG_ON(sizeof(mp->m_super->s_uuid) != sizeof(uuid_t));
-       memcpy(&mp->m_super->s_uuid, uuid, sizeof(uuid_t));
+       uuid_copy(&mp->m_super->s_uuid, uuid);
 
        if (mp->m_flags & XFS_MOUNT_NOUUID)
                return 0;
 
-       if (uuid_is_nil(uuid)) {
-               xfs_warn(mp, "Filesystem has nil UUID - can't mount");
+       if (uuid_is_null(uuid)) {
+               xfs_warn(mp, "Filesystem has null UUID - can't mount");
                return -EINVAL;
        }
 
        mutex_lock(&xfs_uuid_table_mutex);
        for (i = 0, hole = -1; i < xfs_uuid_table_size; i++) {
-               if (uuid_is_nil(&xfs_uuid_table[i])) {
+               if (uuid_is_null(&xfs_uuid_table[i])) {
                        hole = i;
                        continue;
                }
@@ -124,7 +123,7 @@ xfs_uuid_unmount(
 
        mutex_lock(&xfs_uuid_table_mutex);
        for (i = 0; i < xfs_uuid_table_size; i++) {
-               if (uuid_is_nil(&xfs_uuid_table[i]))
+               if (uuid_is_null(&xfs_uuid_table[i]))
                        continue;
                if (!uuid_equal(uuid, &xfs_uuid_table[i]))
                        continue;
@@ -793,7 +792,10 @@ xfs_mountfs(
         *  Copies the low order bits of the timestamp and the randomly
         *  set "sequence" number out of a UUID.
         */
-       uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid);
+       mp->m_fixedfsid[0] =
+               (get_unaligned_be16(&sbp->sb_uuid.b[8]) << 16) |
+                get_unaligned_be16(&sbp->sb_uuid.b[4]);
+       mp->m_fixedfsid[1] = get_unaligned_be32(&sbp->sb_uuid.b[0]);
 
        mp->m_dmevmask = 0;     /* not persistent; set after each mount */