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| author | Matthias Kaehlcke <matthias@kaehlcke.net> | 2008-07-25 01:46:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:33 -0700 |
| commit | 3084b72de73a6f8af0f16989ffb348068bd066d4 (patch) | |
| tree | ef0993d1c2d8e14237cda0277eb68e4fb3653523 | |
| parent | de0ca06a99c33df8333955642843331ab6b6e7ff (diff) | |
| download | linux-3084b72de73a6f8af0f16989ffb348068bd066d4.tar.gz linux-3084b72de73a6f8af0f16989ffb348068bd066d4.tar.bz2 linux-3084b72de73a6f8af0f16989ffb348068bd066d4.zip | |
hfs: convert bitmap_lock in a mutex
Apple Macintosh file system: The semaphore bitmap_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>
| -rw-r--r-- | fs/hfs/bitmap.c | 8 | ||||
| -rw-r--r-- | fs/hfs/hfs_fs.h | 3 | ||||
| -rw-r--r-- | fs/hfs/super.c | 2 |
3 files changed, 7 insertions, 6 deletions
diff --git a/fs/hfs/bitmap.c b/fs/hfs/bitmap.c index 24e75798ddf0..c6e97366e8ac 100644 --- a/fs/hfs/bitmap.c +++ b/fs/hfs/bitmap.c @@ -145,7 +145,7 @@ u32 hfs_vbm_search_free(struct super_block *sb, u32 goal, u32 *num_bits) if (!*num_bits) return 0; - down(&HFS_SB(sb)->bitmap_lock); + mutex_lock(&HFS_SB(sb)->bitmap_lock); bitmap = HFS_SB(sb)->bitmap; pos = hfs_find_set_zero_bits(bitmap, HFS_SB(sb)->fs_ablocks, goal, num_bits); @@ -162,7 +162,7 @@ u32 hfs_vbm_search_free(struct super_block *sb, u32 goal, u32 *num_bits) HFS_SB(sb)->free_ablocks -= *num_bits; hfs_bitmap_dirty(sb); out: - up(&HFS_SB(sb)->bitmap_lock); + mutex_unlock(&HFS_SB(sb)->bitmap_lock); return pos; } @@ -205,7 +205,7 @@ int hfs_clear_vbm_bits(struct super_block *sb, u16 start, u16 count) if ((start + count) > HFS_SB(sb)->fs_ablocks) return -2; - down(&HFS_SB(sb)->bitmap_lock); + mutex_lock(&HFS_SB(sb)->bitmap_lock); /* bitmap is always on a 32-bit boundary */ curr = HFS_SB(sb)->bitmap + (start / 32); len = count; @@ -236,7 +236,7 @@ int hfs_clear_vbm_bits(struct super_block *sb, u16 start, u16 count) } out: HFS_SB(sb)->free_ablocks += len; - up(&HFS_SB(sb)->bitmap_lock); + mutex_unlock(&HFS_SB(sb)->bitmap_lock); hfs_bitmap_dirty(sb); return 0; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index 147374b6f675..ad6528819117 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -11,6 +11,7 @@ #include <linux/slab.h> #include <linux/types.h> +#include <linux/mutex.h> #include <linux/buffer_head.h> #include <linux/fs.h> @@ -139,7 +140,7 @@ struct hfs_sb_info { struct nls_table *nls_io, *nls_disk; - struct semaphore bitmap_lock; + struct mutex bitmap_lock; unsigned long flags; diff --git a/fs/hfs/super.c b/fs/hfs/super.c index 8cf67974adf6..ac2ec5ef66e4 100644 --- a/fs/hfs/super.c +++ b/fs/hfs/super.c @@ -372,7 +372,7 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_op = &hfs_super_operations; sb->s_flags |= MS_NODIRATIME; - init_MUTEX(&sbi->bitmap_lock); + mutex_init(&sbi->bitmap_lock); res = hfs_mdb_get(sb); if (res) { |