xfs: rename xfs_ilock_map_shared

Make it clear that we're only locking against the extent map on the data
fork.  Also clean the function up a little bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 6 insertions, 11 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 967f90625eae..fdd483783365 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -91,20 +91,15 @@ xfs_get_extsz_hint(
  * xfs_iunlock() call.
  */
 uint
-xfs_ilock_map_shared(
-        xfs_inode_t     *ip)
+xfs_ilock_data_map_shared(
+        struct xfs_inode        *ip)
 {
-        uint    lock_mode;
+        uint                    lock_mode = XFS_ILOCK_SHARED;
 
-        if ((ip->i_d.di_format == XFS_DINODE_FMT_BTREE) &&
-            ((ip->i_df.if_flags & XFS_IFEXTENTS) == 0)) {
+        if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
+            (ip->i_df.if_flags & XFS_IFEXTENTS) == 0)
                 lock_mode = XFS_ILOCK_EXCL;
-        } else {
-                lock_mode = XFS_ILOCK_SHARED;
-        }
-
         xfs_ilock(ip, lock_mode);
-
         return lock_mode;
 }
 
@@ -575,7 +570,7 @@ xfs_lookup(
         if (XFS_FORCED_SHUTDOWN(dp->i_mount))
                 return XFS_ERROR(EIO);
 
-        lock_mode = xfs_ilock_map_shared(dp);
+        lock_mode = xfs_ilock_data_map_shared(dp);
         error = xfs_dir_lookup(NULL, dp, name, &inum, ci_name);
         xfs_iunlock(dp, lock_mode);