f2fs: cleanup waiting routine for writeback pages in cp

use genernal method supported by kernel

 o changes from v1
   If any waiter exists at end io, wake up it.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index e42351cbe166..00e79df5a34f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -876,6 +876,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
         spin_lock_init(&sbi->stat_lock);
         init_rwsem(&sbi->bio_sem);
         init_rwsem(&sbi->cp_rwsem);
+        init_waitqueue_head(&sbi->cp_wait);
         init_sb_info(sbi);
 
         /* get an inode for meta space */