reiserfs: convert j_flush_sem to mutex

j_flush_sem is a semaphore but uses it as if it were a mutex.  This patch
converts it to a mutex.

[akpm@linux-foundation.org: fix mutex_trylock retval treatment]
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>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 49b639b88bac..c0751724ee64 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -194,7 +194,7 @@ struct reiserfs_journal {
 
         time_t j_trans_start_time;      /* time this transaction started */
         struct mutex j_mutex;
-        struct semaphore j_flush_sem;
+        struct mutex j_flush_mutex;
         wait_queue_head_t j_join_wait;  /* wait for current transaction to finish before starting new one */
         atomic_t j_jlock;       /* lock for j_join_wait */
         int j_list_bitmap_index;        /* number of next list bitmap to use */