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From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 3/8] io_uring: fix ignoring eventfd in iopoll
Date: Tue, 30 Jun 2020 15:20:38 +0300	[thread overview]
Message-ID: <14ff6dc22b0413f401de83f068a2813fcd63b184.1593519186.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

io_cqring_ev_posted() also signals eventfd, and nothing prohibits
having eventfd with IOPOLL. The problem is that it will be ignored
in io_iopoll_complete() in non IORING_SETUP_SQPOLL case.

Signed-off-by: Pavel Begunkov <[email protected]>
---
 fs/io_uring.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 96fcdd189ac0..776f593a5bf3 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1926,9 +1926,7 @@ static void io_iopoll_complete(struct io_ring_ctx *ctx, unsigned int *nr_events,
 	spin_lock_irq(&ctx->completion_lock);
 	io_commit_cqring(ctx);
 	spin_unlock_irq(&ctx->completion_lock);
-
-	if (ctx->flags & IORING_SETUP_SQPOLL)
-		io_cqring_ev_posted(ctx);
+	io_cqring_ev_posted(ctx);
 	io_req_free_batch_finish(ctx, &rb);
 
 	if (!list_empty(&again))
-- 
2.24.0


  parent reply	other threads:[~2020-06-30 12:22 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 12:20 [PATCH 0/8] iopoll and task_work fixes Pavel Begunkov
2020-06-30 12:20 ` [PATCH 1/8] io_uring: fix io_fail_links() locking Pavel Begunkov
2020-06-30 14:38   ` Jens Axboe
2020-06-30 14:45     ` Pavel Begunkov
2020-06-30 12:20 ` [PATCH 2/8] io_uring: fix commit_cqring() locking in iopoll Pavel Begunkov
2020-06-30 14:04   ` Jens Axboe
2020-06-30 14:36     ` Pavel Begunkov
2020-06-30 14:46       ` Jens Axboe
2020-06-30 15:00         ` Pavel Begunkov
2020-06-30 15:33           ` Jens Axboe
2020-06-30 12:20 ` Pavel Begunkov [this message]
2020-06-30 12:20 ` [PATCH 4/8] io_uring: fix missing ->mm on exit Pavel Begunkov
2020-06-30 12:20 ` [PATCH 5/8] io_uring: don't fail iopoll requeue without ->mm Pavel Begunkov
2020-06-30 12:20 ` [PATCH 6/8] io_uring: fix NULL mm in io_poll_task_func() Pavel Begunkov
2020-06-30 12:20 ` [PATCH 7/8] io_uring: simplify io_async_task_func() Pavel Begunkov
2020-06-30 12:20 ` [PATCH 8/8] io_uring: optimise io_req_find_next() fast check Pavel Begunkov
2020-06-30 12:39 ` [PATCH 0/8] iopoll and task_work fixes Pavel Begunkov

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