s_sync_lock      2375 fs/fs-writeback.c 	mutex_lock(&sb->s_sync_lock);
s_sync_lock      2447 fs/fs-writeback.c 	mutex_unlock(&sb->s_sync_lock);
s_sync_lock       247 fs/super.c     	mutex_init(&s->s_sync_lock);
s_sync_lock      1539 include/linux/fs.h 	struct mutex		s_sync_lock;	/* sync serialisation lock */