linux-kernel - Re: [PATCH v1] fs/io_uring: Prioritise checking faster conditions first in io

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Message-Id: <163448061835.101565.1242197523580881975.b4-ty@kernel.dk>
Date:   Sun, 17 Oct 2021 08:23:41 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Noah Goldstein <goldstein.w.n@...il.com>
Cc:     Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
        asml.silence@...il.com, io-uring@...r.kernel.org
Subject: Re: [PATCH v1] fs/io_uring: Prioritise checking faster conditions first in io_write

On Sat, 16 Oct 2021 20:32:29 -0500, Noah Goldstein wrote:
> This commit reorders the conditions in a branch in io_write. The
> reorder to check 'ret2 == -EAGAIN' first as checking
> '(req->ctx->flags & IORING_SETUP_IOPOLL)' will likely be more
> expensive due to 2x memory derefences.
> 
> 

Applied, thanks!

[1/1] fs/io_uring: Prioritise checking faster conditions first in io_write
      commit: 02a8286be94bb1fce86afa6b487717eb4ca2956e

Best regards,
-- 
Jens Axboe