*/
static int sb_init_dio_done_wq(struct super_block *sb)
{
+ struct workqueue_struct *old;
struct workqueue_struct *wq = alloc_workqueue("dio/%s",
WQ_MEM_RECLAIM, 0,
sb->s_id);
/*
* This has to be atomic as more DIOs can race to create the workqueue
*/
- cmpxchg(&sb->s_dio_done_wq, NULL, wq);
+ old = cmpxchg(&sb->s_dio_done_wq, NULL, wq);
/* Someone created workqueue before us? Free ours... */
- if (wq != sb->s_dio_done_wq)
+ if (old)
destroy_workqueue(wq);
return 0;
}