linux-kernel - Re: [PATCH 1/1] io_uring: optimise use of ctx->drain

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Message-ID: <4b3d3147-260a-8649-c99b-681624762334@kernel.dk>
Date:   Thu, 16 Jan 2020 19:59:17 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Pavel Begunkov <asml.silence@...il.com>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] io_uring: optimise use of ctx->drain_next

On 1/16/20 5:57 PM, Pavel Begunkov wrote:
> Move setting ctx->drain_next to the only place it could be set, when it
> got linked non-head requests. The same for checking it, it's interesting
> only for a head of a link or a non-linked request.
> 
> No functional changes here. This removes some code from the common path
> and also removes REQ_F_DRAIN_LINK flag, as it doesn't need it anymore.

Applied, thanks.

-- 
Jens Axboe