linux-kernel - Re: [PATCH] io_uring: Try to merge io requests only for regular files

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Message-ID: <20210319140622.GA3420@casper.infradead.org>
Date:   Fri, 19 Mar 2021 14:06:22 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Dmitry Monakhov <dmtrmonakhov@...dex-team.ru>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        stable@...r.kernel.org, axboe@...nel.dk
Subject: Re: [PATCH] io_uring: Try to merge io requests only for regular files

On Fri, Mar 19, 2021 at 05:28:59AM +0000, Dmitry Monakhov wrote:
> Otherwise we may endup blocking on pipe or socket.
> 
> Fixes: 6d5d5ac ("io_uring: extend async work merge")

7 bytes of sha1 isn't enough.  You can set core.abbrev to 12 or upgrade
to a version of git from this decade to get that automatically.

> 2.7.4

... is from 2016, so you're five years out of date.  Don't get cut
off when git switches from SHA1.