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From: Dylan Yudaken <[email protected]>
To: "[email protected]" <[email protected]>,
	"[email protected]" <[email protected]>
Cc: "[email protected]" <[email protected]>
Subject: Re: [PATCH 2/6] io_uring: disallow defer-tw run w/ no submitters
Date: Thu, 8 Sep 2022 16:43:14 +0000	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <b4f0d3f14236d7059d08c5abe2661ef0b78b5528.1662652536.git.asml.silence@gmail.com>

On Thu, 2022-09-08 at 16:56 +0100, Pavel Begunkov wrote:
> We try to restrict CQ waiters when IORING_SETUP_DEFER_TASKRUN is set,
> but if nothing has been submitted yet it'll allow any waiter, which
> violates the contract.
> 
> Fixes: dacbb30102689 ("io_uring: add IORING_SETUP_DEFER_TASKRUN")
> Signed-off-by: Pavel Begunkov <[email protected]>
> ---
>  io_uring/io_uring.c | 7 +------
>  io_uring/io_uring.h | 9 ++-------
>  2 files changed, 3 insertions(+), 13 deletions(-)
> 

Reviewed-by: Dylan Yudaken <[email protected]>

  reply	other threads:[~2022-09-08 16:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-08 15:56 [PATCH for-next 0/6] defer tw fixes and other cleanups Pavel Begunkov
2022-09-08 15:56 ` [PATCH 1/6] io_uring: further limit non-owner defer-tw cq waiting Pavel Begunkov
2022-09-08 16:39   ` Dylan Yudaken
2022-09-08 15:56 ` [PATCH 2/6] io_uring: disallow defer-tw run w/ no submitters Pavel Begunkov
2022-09-08 16:43   ` Dylan Yudaken [this message]
2022-09-08 15:56 ` [PATCH 3/6] io_uring/iopoll: fix unexpected returns Pavel Begunkov
2022-09-08 16:43   ` Dylan Yudaken
2022-09-08 15:56 ` [PATCH 4/6] io_uring/iopoll: unify tw breaking logic Pavel Begunkov
2022-09-08 15:56 ` [PATCH 5/6] io_uring: add fast path for io_run_local_work() Pavel Begunkov
2022-09-08 16:44   ` Dylan Yudaken
2022-09-08 15:56 ` [PATCH 6/6] io_uring: remove unused return from io_disarm_next Pavel Begunkov
2022-09-08 21:23 ` [PATCH for-next 0/6] defer tw fixes and other cleanups Jens Axboe

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