affs: convert s_bmlock into a mutex

The semaphore s_bmlock 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, 9 insertions, 9 deletions

diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index c4a5ad09ddf2..dc5ef14bdc1c 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -45,14 +45,14 @@ affs_count_free_blocks(struct super_block *sb)
         if (sb->s_flags & MS_RDONLY)
                 return 0;
 
-        down(&AFFS_SB(sb)->s_bmlock);
+        mutex_lock(&AFFS_SB(sb)->s_bmlock);
 
         bm = AFFS_SB(sb)->s_bitmap;
         free = 0;
         for (i = AFFS_SB(sb)->s_bmap_count; i > 0; bm++, i--)
                 free += bm->bm_free;
 
-        up(&AFFS_SB(sb)->s_bmlock);
+        mutex_unlock(&AFFS_SB(sb)->s_bmlock);
 
         return free;
 }
@@ -76,7 +76,7 @@ affs_free_block(struct super_block *sb, u32 block)
         bit     = blk % sbi->s_bmap_bits;
         bm      = &sbi->s_bitmap[bmap];
 
-        down(&sbi->s_bmlock);
+        mutex_lock(&sbi->s_bmlock);
 
         bh = sbi->s_bmap_bh;
         if (sbi->s_last_bmap != bmap) {
@@ -105,19 +105,19 @@ affs_free_block(struct super_block *sb, u32 block)
         sb->s_dirt = 1;
         bm->bm_free++;
 
-        up(&sbi->s_bmlock);
+        mutex_unlock(&sbi->s_bmlock);
         return;
 
 err_free:
         affs_warning(sb,"affs_free_block","Trying to free block %u which is already free", block);
-        up(&sbi->s_bmlock);
+        mutex_unlock(&sbi->s_bmlock);
         return;
 
 err_bh_read:
         affs_error(sb,"affs_free_block","Cannot read bitmap block %u", bm->bm_key);
         sbi->s_bmap_bh = NULL;
         sbi->s_last_bmap = ~0;
-        up(&sbi->s_bmlock);
+        mutex_unlock(&sbi->s_bmlock);
         return;
 
 err_range:
@@ -168,7 +168,7 @@ affs_alloc_block(struct inode *inode, u32 goal)
         bmap = blk / sbi->s_bmap_bits;
         bm = &sbi->s_bitmap[bmap];
 
-        down(&sbi->s_bmlock);
+        mutex_lock(&sbi->s_bmlock);
 
         if (bm->bm_free)
                 goto find_bmap_bit;
@@ -249,7 +249,7 @@ find_bit:
         mark_buffer_dirty(bh);
         sb->s_dirt = 1;
 
-        up(&sbi->s_bmlock);
+        mutex_unlock(&sbi->s_bmlock);
 
         pr_debug("%d\n", blk);
         return blk;
@@ -259,7 +259,7 @@ err_bh_read:
         sbi->s_bmap_bh = NULL;
         sbi->s_last_bmap = ~0;
 err_full:
-        up(&sbi->s_bmlock);
+        mutex_unlock(&sbi->s_bmlock);
         pr_debug("failed\n");
         return 0;
 }