From: Christoph Hellwig <[email protected]>
To: Jens Axboe <[email protected]>
Cc: Christoph Hellwig <[email protected]>, [email protected]
Subject: Re: __io_file_supports_nowait for regular files
Date: Thu, 21 Jul 2022 18:23:03 +0200 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On Thu, Jul 21, 2022 at 09:59:40AM -0600, Jens Axboe wrote:
> On 7/21/22 9:37 AM, Christoph Hellwig wrote:
> > Hi Jens,
> >
> > is there any good reason __io_file_supports_nowait checks the
> > blk_queue_nowait flag for regular files? The FMODE_NOWAIT is set
> > for regular files that support nowait I/O, and should be all that
> > is needed. Even with a block device that does not nonblocking
> > I/O some thing like reading from the page cache can be done
> > non-blocking.
>
> Nope, we can probably kill that check then. Want to send a patch?
What would be a good way to verify it doesn't break any strange
assumptions? I kinda don't fell too comfortable touching io_uring
guts.
>
> --
> Jens Axboe
---end quoted text---
next prev parent reply other threads:[~2022-07-21 16:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-21 15:37 __io_file_supports_nowait for regular files Christoph Hellwig
2022-07-21 15:59 ` Jens Axboe
2022-07-21 16:23 ` Christoph Hellwig [this message]
2022-07-21 18:46 ` Jens Axboe
2022-07-22 15:59 ` Christoph Hellwig
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