From: Ed Baunton <[email protected]>
To: Jens Axboe <[email protected]>
Cc: Josh Triplett <[email protected]>, [email protected]
Subject: Re: Multiple mmap/mprotect/munmap operations in a batch?
Date: Fri, 24 Apr 2020 14:21:20 -0400 [thread overview]
Message-ID: <CAF6hZUDW9zfLNuEP=CGiG7X0UAbQQJHjA3yO35A_xx9hNuxNuA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
Is there any restriction as to what calls shouldn't be covered with
io_uring? I see the scope is growing over time. For example would
directory operations be appropriate?
Ed
On Thu, 23 Apr 2020 at 11:13, Jens Axboe <[email protected]> wrote:
>
> On 4/23/20 2:19 AM, Josh Triplett wrote:
> > What would it take for io_uring to support mmap, mprotect, and munmap
> > operations?
>
> Not very much, wiring up something like madvise as an example:
>
> https://git.kernel.dk/cgit/linux-block/commit/?id=c1ca757bd6f4632c510714631ddcc2d13030fe1e
>
> > What would it take to process a batch of such operations efficiently
> > without repeatedly poking mmap_sem and such?
>
> Probably just a bit of refactoring, to enable calling the needed helpers
> with the mmap_sem already held.
>
> --
> Jens Axboe
>
prev parent reply other threads:[~2020-04-24 18:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-23 8:19 Multiple mmap/mprotect/munmap operations in a batch? Josh Triplett
2020-04-23 15:11 ` Jens Axboe
2020-04-24 18:21 ` Ed Baunton [this message]
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