[XFS] Unwrap XFS_SB_LOCK.

Un-obfuscate XFS_SB_LOCK, remove XFS_SB_LOCK->mutex_lock->spin_lock
macros, call spin_lock directly, remove extraneous cookie holdover from
old xfs code, and change lock type to spinlock_t.

SGI-PV: 970382
SGI-Modid: xfs-linux-melb:xfs-kern:29746a

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 3 insertions, 5 deletions

diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 81f45dae1c57..eb3815ebb7aa 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -226,17 +226,15 @@ xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes)
 STATIC void
 xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp)
 {
-        unsigned long s;
-
         if ((mp->m_flags & XFS_MOUNT_ATTR2) &&
             !(XFS_SB_VERSION_HASATTR2(&mp->m_sb))) {
-                s = XFS_SB_LOCK(mp);
+                spin_lock(&mp->m_sb_lock);
                 if (!XFS_SB_VERSION_HASATTR2(&mp->m_sb)) {
                         XFS_SB_VERSION_ADDATTR2(&mp->m_sb);
-                        XFS_SB_UNLOCK(mp, s);
+                        spin_unlock(&mp->m_sb_lock);
                         xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
                 } else
-                        XFS_SB_UNLOCK(mp, s);
+                        spin_unlock(&mp->m_sb_lock);
         }
 }