* [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd
@ 2022-06-16 13:50 Dylan Yudaken
2022-06-16 13:53 ` Pavel Begunkov
2022-06-16 15:14 ` Jens Axboe
0 siblings, 2 replies; 3+ messages in thread
From: Dylan Yudaken @ 2022-06-16 13:50 UTC (permalink / raw)
To: axboe, asml.silence, io-uring; +Cc: Kernel-team, Dylan Yudaken
io_req_task_prio_work_add has a strict assumption that it will only be
used with io_req_task_complete. There is a codepath that assumes this is
the case and will not even call the completion function if it is hit.
For uring_cmd with an arbitrary completion function change the call to the
correct non-priority version.
Fixes: ee692a21e9bf8 ("fs,io_uring: add infrastructure for uring-cmd")
Signed-off-by: Dylan Yudaken <[email protected]>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 3aab4182fd89..a7ac2d3bce76 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5079,7 +5079,7 @@ void io_uring_cmd_complete_in_task(struct io_uring_cmd *ioucmd,
req->uring_cmd.task_work_cb = task_work_cb;
req->io_task_work.func = io_uring_cmd_work;
- io_req_task_prio_work_add(req);
+ io_req_task_work_add(req);
}
EXPORT_SYMBOL_GPL(io_uring_cmd_complete_in_task);
base-commit: b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3
--
2.30.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd
2022-06-16 13:50 [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd Dylan Yudaken
@ 2022-06-16 13:53 ` Pavel Begunkov
2022-06-16 15:14 ` Jens Axboe
1 sibling, 0 replies; 3+ messages in thread
From: Pavel Begunkov @ 2022-06-16 13:53 UTC (permalink / raw)
To: Dylan Yudaken, axboe, io-uring; +Cc: Kernel-team
On 6/16/22 14:50, Dylan Yudaken wrote:
> io_req_task_prio_work_add has a strict assumption that it will only be
> used with io_req_task_complete. There is a codepath that assumes this is
> the case and will not even call the completion function if it is hit.
>
> For uring_cmd with an arbitrary completion function change the call to the
> correct non-priority version.
Reviewed-by: Pavel Begunkov <[email protected]>
> Fixes: ee692a21e9bf8 ("fs,io_uring: add infrastructure for uring-cmd")
> Signed-off-by: Dylan Yudaken <[email protected]>
> ---
> fs/io_uring.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/io_uring.c b/fs/io_uring.c
> index 3aab4182fd89..a7ac2d3bce76 100644
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
> @@ -5079,7 +5079,7 @@ void io_uring_cmd_complete_in_task(struct io_uring_cmd *ioucmd,
>
> req->uring_cmd.task_work_cb = task_work_cb;
> req->io_task_work.func = io_uring_cmd_work;
> - io_req_task_prio_work_add(req);
> + io_req_task_work_add(req);
> }
> EXPORT_SYMBOL_GPL(io_uring_cmd_complete_in_task);
>
>
> base-commit: b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3
--
Pavel Begunkov
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd
2022-06-16 13:50 [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd Dylan Yudaken
2022-06-16 13:53 ` Pavel Begunkov
@ 2022-06-16 15:14 ` Jens Axboe
1 sibling, 0 replies; 3+ messages in thread
From: Jens Axboe @ 2022-06-16 15:14 UTC (permalink / raw)
To: asml.silence, io-uring, dylany; +Cc: Kernel-team
On Thu, 16 Jun 2022 06:50:11 -0700, Dylan Yudaken wrote:
> io_req_task_prio_work_add has a strict assumption that it will only be
> used with io_req_task_complete. There is a codepath that assumes this is
> the case and will not even call the completion function if it is hit.
>
> For uring_cmd with an arbitrary completion function change the call to the
> correct non-priority version.
>
> [...]
Applied, thanks!
[1/1] io_uring: do not use prio task_work_add in uring_cmd
commit: 32fc810b364f3dd30930c594e461ffa1761fef39
Best regards,
--
Jens Axboe
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-06-16 13:50 [PATCH 5.19] io_uring: do not use prio task_work_add in uring_cmd Dylan Yudaken
2022-06-16 13:53 ` Pavel Begunkov
2022-06-16 15:14 ` Jens Axboe
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