linux-kernel - Re: [PATCH v2 0/2] A couple of i_dir

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Message-ID: <20180226180547.GL26147@arm.com>
Date:   Mon, 26 Feb 2018 18:05:48 +0000
From:   Will Deacon <will.deacon@....com>
To:     linux-fsdevel@...r.kernel.org, viro@...iv.linux.org.uk
Cc:     peterz@...radead.org, willy@...radead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] A couple of i_dir_seq fixes for fs/dcache.c

H Al,

On Mon, Feb 19, 2018 at 02:55:53PM +0000, Will Deacon wrote:
> This is version two of the patch I previously posted here:
> 
>   http://lkml.kernel.org/r/1518526731-26546-1-git-send-email-will.deacon@arm.com
> 
> Changes since v1:
> 
>   * Added READ_ONCE to i_dir_seq access
>   * Added tags
> 
> Cheers,
> 
> Will
> 
> --->8
> 
> Will Deacon (2):
>   fs: dcache: Avoid livelock between d_alloc_parallel and __d_add
>   fs: dcache: Use READ_ONCE when accessing i_dir_seq
> 
>  fs/dcache.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)

Is there anything more you need from me on this series? I don't see it
queued anywhere and we're seeing this livelock hitting us in practice.

Cheers,

Will