Re: [PATCH V2] block: ignore RWF_HIPRI hint for sync dio

Jens Axboe
2022-05-02T16:07:49Z

On Wed, 20 Apr 2022 22:31:10 +0800, Ming Lei wrote:
> So far bio is marked as REQ_POLLED if RWF_HIPRI/IOCB_HIPRI is passed
> from userspace sync io interface, then block layer tries to poll until
> the bio is completed. But the current implementation calls
> blk_io_schedule() if bio_poll() returns 0, and this way causes io hang or
> timeout easily.
>
> But looks no one reports this kind of issue, which should have been
> triggered in normal io poll sanity test or blktests block/007 as
> observed by Changhui, that means it is very likely that no one uses it
> or no one cares it.
>
> [...]

Applied, thanks!

[1/1] block: ignore RWF_HIPRI hint for sync dio
commit: 9650b453a3d4b1b8ed4ea8bcb9b40109608d1faf

Best regards,
--
Jens Axboe