This is a note to let you know that I've just added the patch titled
io_uring: use the right type for work_llist empty check
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
io_uring-use-the-right-type-for-work_llist-empty-che.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 58f1bcaa03a98da7b633b6f8ca0a97a70912cc92
Author: Jens Axboe <axboe@xxxxxxxxx>
Date: Mon Mar 25 18:53:33 2024 -0600
io_uring: use the right type for work_llist empty check
[ Upstream commit 22537c9f79417fed70b352d54d01d2586fee9521 ]
io_task_work_pending() uses wq_list_empty() on ctx->work_llist, but it's
not an io_wq_work_list, it's a struct llist_head. They both have
->first as head-of-list, and it turns out the checks are identical. But
be proper and use the right helper.
Fixes: dac6a0eae793 ("io_uring: ensure iopoll runs local task work as well")
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index d5495710c1787..c0cff024db7b4 100644
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -301,7 +301,7 @@ static inline int io_run_task_work(void)
static inline bool io_task_work_pending(struct io_ring_ctx *ctx)
{
- return task_work_pending(current) || !wq_list_empty(&ctx->work_llist);
+ return task_work_pending(current) || !llist_empty(&ctx->work_llist);
}
static inline void io_tw_lock(struct io_ring_ctx *ctx, struct io_tw_state *ts)
