From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 02/11] io_uring: don't do extra EXITING cancellations
Date: Mon, 22 Mar 2021 01:58:25 +0000 [thread overview]
Message-ID: <f2aba1075b5b23be428f8e7e2f6dc529a5667783.1616378197.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
io_match_task() matches all requests with PF_EXITING task, even though
those may be valid requests. It was necessary for SQPOLL cancellation,
but now it kills all requests before exiting via
io_uring_cancel_sqpoll(), so it's not needed.
Signed-off-by: Pavel Begunkov <[email protected]>
---
fs/io_uring.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 5cba23347092..080fac4d4543 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1077,12 +1077,8 @@ static bool io_match_task(struct io_kiocb *head,
{
struct io_kiocb *req;
- if (task && head->task != task) {
- /* in terms of cancelation, always match if req task is dead */
- if (head->task->flags & PF_EXITING)
- return true;
+ if (task && head->task != task)
return false;
- }
if (!files)
return true;
--
2.24.0
next prev parent reply other threads:[~2021-03-22 2:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 1:58 [PATCH 5.13 00/11] yet another series of random 5.13 patches Pavel Begunkov
2021-03-22 1:58 ` [PATCH 01/11] io_uring: don't clear REQ_F_LINK_TIMEOUT Pavel Begunkov
2021-03-22 1:58 ` Pavel Begunkov [this message]
2021-03-22 1:58 ` [PATCH 03/11] io_uring: optimise out task_work checks on enter Pavel Begunkov
2021-03-22 13:45 ` Jens Axboe
2021-03-22 14:53 ` Pavel Begunkov
2021-03-22 14:58 ` Jens Axboe
2021-03-22 1:58 ` [PATCH 04/11] io_uring: remove tctx->sqpoll Pavel Begunkov
2021-03-22 1:58 ` [PATCH 05/11] io-wq: refactor *_get_acct() Pavel Begunkov
2021-03-22 1:58 ` [PATCH 06/11] io_uring: don't init req->work fully in advance Pavel Begunkov
2021-03-22 1:58 ` [PATCH 07/11] io_uring: kill unused REQ_F_NO_FILE_TABLE Pavel Begunkov
2021-03-22 1:58 ` [PATCH 08/11] io_uring: optimise kiocb_end_write for !ISREG Pavel Begunkov
2021-03-22 1:58 ` [PATCH 09/11] io_uring: don't alter iopoll reissue fail ret code Pavel Begunkov
2021-03-22 1:58 ` [PATCH 10/11] io_uring: hide iter revert in resubmit_prep Pavel Begunkov
2021-03-22 1:58 ` [PATCH 11/11] io_uring: optimise rw complete error handling Pavel Begunkov
2021-03-22 2:00 ` [PATCH 5.13 00/11] yet another series of random 5.13 patches Pavel Begunkov
2021-03-22 13:49 ` Jens Axboe
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