hfs: push lock_super down

HFS uses 'lock_super()'/'unlock_super()' around 'hfs_mdb_commit()' in order
to serialize MDB (Master Directory Block) changes. Push it down to
'hfs_mdb_commit()' in order to simplify the code a bit.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 2 insertions, 6 deletions

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 451c97281b83..f2deefdb4066 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -645,11 +645,9 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end,
         /* sync the superblock to buffers */
         sb = inode->i_sb;
         if (sb->s_dirt) {
-                lock_super(sb);
                 sb->s_dirt = 0;
                 if (!(sb->s_flags & MS_RDONLY))
                         hfs_mdb_commit(sb);
-                unlock_super(sb);
         }
         /* .. finally sync the buffers to disk */
         err = sync_blockdev(sb->s_bdev);
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 1563d5ce5764..3f558d58fba2 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -260,6 +260,7 @@ void hfs_mdb_commit(struct super_block *sb)
 {
         struct hfs_mdb *mdb = HFS_SB(sb)->mdb;
 
+        lock_super(sb);
         if (test_and_clear_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags)) {
                 /* These parameters may have been modified, so write them back */
                 mdb->drLsMod = hfs_mtime();
@@ -317,6 +318,7 @@ void hfs_mdb_commit(struct super_block *sb)
                         size -= len;
                 }
         }
+        unlock_super(sb);
 }
 
 void hfs_mdb_close(struct super_block *sb)
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 7b4c537d6e13..f7c06bbf33bc 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -50,21 +50,17 @@ MODULE_LICENSE("GPL");
  */
 static void hfs_write_super(struct super_block *sb)
 {
-        lock_super(sb);
         sb->s_dirt = 0;
 
         /* sync everything to the buffers */
         if (!(sb->s_flags & MS_RDONLY))
                 hfs_mdb_commit(sb);
-        unlock_super(sb);
 }
 
 static int hfs_sync_fs(struct super_block *sb, int wait)
 {
-        lock_super(sb);
         hfs_mdb_commit(sb);
         sb->s_dirt = 0;
-        unlock_super(sb);
 
         return 0;
 }