hfs: convert extents_lock in a mutex

Apple Macintosh file system: The semaphore extens_lock is used as a mutex.
Convert it to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 7 deletions

diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
index c176f67ba0a5..2c16316d2917 100644
--- a/fs/hfs/extent.c
+++ b/fs/hfs/extent.c
@@ -343,16 +343,16 @@ int hfs_get_block(struct inode *inode, sector_t block,
                 goto done;
         }
 
-        down(&HFS_I(inode)->extents_lock);
+        mutex_lock(&HFS_I(inode)->extents_lock);
         res = hfs_ext_read_extent(inode, ablock);
         if (!res)
                 dblock = hfs_ext_find_block(HFS_I(inode)->cached_extents,
                                             ablock - HFS_I(inode)->cached_start);
         else {
-                up(&HFS_I(inode)->extents_lock);
+                mutex_unlock(&HFS_I(inode)->extents_lock);
                 return -EIO;
         }
-        up(&HFS_I(inode)->extents_lock);
+        mutex_unlock(&HFS_I(inode)->extents_lock);
 
 done:
         map_bh(bh_result, sb, HFS_SB(sb)->fs_start +
@@ -375,7 +375,7 @@ int hfs_extend_file(struct inode *inode)
         u32 start, len, goal;
         int res;
 
-        down(&HFS_I(inode)->extents_lock);
+        mutex_lock(&HFS_I(inode)->extents_lock);
         if (HFS_I(inode)->alloc_blocks == HFS_I(inode)->first_blocks)
                 goal = hfs_ext_lastblock(HFS_I(inode)->first_extents);
         else {
@@ -425,7 +425,7 @@ int hfs_extend_file(struct inode *inode)
                         goto insert_extent;
         }
 out:
-        up(&HFS_I(inode)->extents_lock);
+        mutex_unlock(&HFS_I(inode)->extents_lock);
         if (!res) {
                 HFS_I(inode)->alloc_blocks += len;
                 mark_inode_dirty(inode);
@@ -487,7 +487,7 @@ void hfs_file_truncate(struct inode *inode)
         if (blk_cnt == alloc_cnt)
                 goto out;
 
-        down(&HFS_I(inode)->extents_lock);
+        mutex_lock(&HFS_I(inode)->extents_lock);
         hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
         while (1) {
                 if (alloc_cnt == HFS_I(inode)->first_blocks) {
@@ -514,7 +514,7 @@ void hfs_file_truncate(struct inode *inode)
                 hfs_brec_remove(&fd);
         }
         hfs_find_exit(&fd);
-        up(&HFS_I(inode)->extents_lock);
+        mutex_unlock(&HFS_I(inode)->extents_lock);
 
         HFS_I(inode)->alloc_blocks = blk_cnt;
 out: