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hfs: convert extents_lock in a mutex

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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>
This commit is contained in:
Matthias Kaehlcke
2008-07-25 10:53:33 -07:00
committed by Linus Torvalds
parent 3084b72de7
commit 39f8d472f2
4 changed files with 11 additions and 11 deletions
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fs/hfs/extent.c
+7 -7
View File
@@ -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: