reiserfs: convert j_commit_lock to mutex
j_commit_lock is a semaphore but uses it as if it were a mutex. This patch
converts it to a mutex.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Edward Shishkin <edward.shishkin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 3cb4a56..c8f60ee 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -34,15 +34,10 @@
** from within kupdate, it will ignore the immediate flag
*/
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
#include <linux/time.h>
#include <linux/semaphore.h>
-
#include <linux/vmalloc.h>
#include <linux/reiserfs_fs.h>
-
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/fcntl.h>
@@ -54,6 +49,9 @@
#include <linux/writeback.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
/* gets a struct reiserfs_journal_list * from a list head */
#define JOURNAL_LIST_ENTRY(h) (list_entry((h), struct reiserfs_journal_list, \
@@ -1045,9 +1043,9 @@
}
/* make sure nobody is trying to flush this one at the same time */
- down(&jl->j_commit_lock);
+ mutex_lock(&jl->j_commit_mutex);
if (!journal_list_still_alive(s, trans_id)) {
- up(&jl->j_commit_lock);
+ mutex_unlock(&jl->j_commit_mutex);
goto put_jl;
}
BUG_ON(jl->j_trans_id == 0);
@@ -1057,7 +1055,7 @@
if (flushall) {
atomic_set(&(jl->j_older_commits_done), 1);
}
- up(&jl->j_commit_lock);
+ mutex_unlock(&jl->j_commit_mutex);
goto put_jl;
}
@@ -1181,7 +1179,7 @@
if (flushall) {
atomic_set(&(jl->j_older_commits_done), 1);
}
- up(&jl->j_commit_lock);
+ mutex_unlock(&jl->j_commit_mutex);
put_jl:
put_journal_list(s, jl);
@@ -2556,7 +2554,7 @@
INIT_LIST_HEAD(&jl->j_working_list);
INIT_LIST_HEAD(&jl->j_tail_bh_list);
INIT_LIST_HEAD(&jl->j_bh_list);
- sema_init(&jl->j_commit_lock, 1);
+ mutex_init(&jl->j_commit_mutex);
SB_JOURNAL(s)->j_num_lists++;
get_journal_list(jl);
return jl;
@@ -4030,7 +4028,7 @@
* the new transaction is fully setup, and we've already flushed the
* ordered bh list
*/
- down(&jl->j_commit_lock);
+ mutex_lock(&jl->j_commit_mutex);
/* save the transaction id in case we need to commit it later */
commit_trans_id = jl->j_trans_id;
@@ -4196,7 +4194,7 @@
lock_kernel();
}
BUG_ON(!list_empty(&jl->j_tail_bh_list));
- up(&jl->j_commit_lock);
+ mutex_unlock(&jl->j_commit_mutex);
/* honor the flush wishes from the caller, simple commits can
** be done outside the journal lock, they are done below
