From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 01/23] io_uring: remove unnecessary PF_EXITING check
Date: Thu, 29 Jul 2021 16:05:28 +0100 [thread overview]
Message-ID: <c9d786e99decec19c8381141e7ae7c59c5b51da6.1627570633.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
We prefer nornal task_works even if it would fail requests inside. Kill
a PF_EXITING check in io_req_task_work_add(), task_work_add() handles
well dying tasks, i.e. return error when can't enqueue due to late
stages of do_exit().
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 bf548af0426c..2c4a61153bd1 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1994,8 +1994,6 @@ static void io_req_task_work_add(struct io_kiocb *req)
if (test_bit(0, &tctx->task_state) ||
test_and_set_bit(0, &tctx->task_state))
return;
- if (unlikely(tsk->flags & PF_EXITING))
- goto fail;
/*
* SQPOLL kernel thread doesn't need notification, just a wakeup. For
@@ -2008,7 +2006,7 @@ static void io_req_task_work_add(struct io_kiocb *req)
wake_up_process(tsk);
return;
}
-fail:
+
clear_bit(0, &tctx->task_state);
spin_lock_irqsave(&tctx->task_lock, flags);
node = tctx->task_list.first;
--
2.32.0
next prev parent reply other threads:[~2021-07-29 15:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 15:05 [PATCH for-next 00/23] first 5.15 batch Pavel Begunkov
2021-07-29 15:05 ` Pavel Begunkov [this message]
2021-07-29 15:05 ` [PATCH 02/23] io-wq: improve wq_list_add_tail() Pavel Begunkov
2021-07-29 15:05 ` [PATCH 03/23] io_uring: refactor io_alloc_req Pavel Begunkov
2021-07-29 15:05 ` [PATCH 04/23] io_uring: don't halt iopoll too early Pavel Begunkov
2021-07-29 15:05 ` [PATCH 05/23] io_uring: add more locking annotations for submit Pavel Begunkov
2021-07-29 15:05 ` [PATCH 06/23] io_uring: optimise io_cqring_wait() hot path Pavel Begunkov
2021-07-29 15:05 ` [PATCH 07/23] io_uring: extract a helper for ctx quiesce Pavel Begunkov
2021-07-29 15:05 ` [PATCH 08/23] io_uring: move io_put_task() definition Pavel Begunkov
2021-07-29 15:05 ` [PATCH 09/23] io_uring: move io_rsrc_node_alloc() definition Pavel Begunkov
2021-07-29 15:05 ` [PATCH 10/23] io_uring: inline io_free_req_deferred Pavel Begunkov
2021-07-29 15:05 ` [PATCH 11/23] io_uring: deduplicate open iopoll check Pavel Begunkov
2021-07-29 15:05 ` [PATCH 12/23] io_uring: improve ctx hang handling Pavel Begunkov
2021-07-29 15:05 ` [PATCH 13/23] io_uring: kill unused IO_IOPOLL_BATCH Pavel Begunkov
2021-07-29 15:05 ` [PATCH 14/23] io_uring: drop exec checks from io_req_task_submit Pavel Begunkov
2021-07-29 15:05 ` [PATCH 15/23] io_uring: optimise putting task struct Pavel Begunkov
2021-07-29 15:05 ` [PATCH 16/23] io_uring: hide async dadta behind flags Pavel Begunkov
2021-07-29 15:05 ` [PATCH 17/23] io_uring: move io_fallback_req_func() Pavel Begunkov
2021-07-29 15:05 ` [PATCH 18/23] io_uring: cache __io_free_req()'d requests Pavel Begunkov
2021-07-29 15:05 ` [PATCH 19/23] io_uring: use inflight_entry instead of compl.list Pavel Begunkov
2021-07-29 15:05 ` [PATCH 20/23] io_uring: remove redundant args from cache_free Pavel Begunkov
2021-07-29 15:05 ` [PATCH 21/23] io_uring: inline struct io_comp_state Pavel Begunkov
2021-07-29 15:05 ` [PATCH 22/23] io_uring: remove extra argument for overflow flush Pavel Begunkov
2021-07-29 15:05 ` [PATCH 23/23] io_uring: inline io_poll_remove_waitqs Pavel Begunkov
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