linux-kernel - Re: [PATCH 1/4] mm: add new mmgrab() helper

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Message-ID: <alpine.DEB.2.10.1612221403340.108886@chino.kir.corp.google.com>
Date:   Thu, 22 Dec 2016 14:03:52 -0800 (PST)
From:   David Rientjes <rientjes@...gle.com>
To:     Vegard Nossum <vegard.nossum@...cle.com>
cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>, linux-mm@...ck.org,
        Peter Zijlstra <peterz@...radead.org>,
        "Kirill A . Shutemov" <kirill@...temov.name>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] mm: add new mmgrab() helper

On Sun, 18 Dec 2016, Vegard Nossum wrote:

> Apart from adding the helper function itself, the rest of the kernel is
> converted mechanically using:
> 
>   git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)->mm_count);/mmgrab\(\1\);/'
>   git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)\.mm_count);/mmgrab\(\&\1\);/'
> 
> This is needed for a later patch that hooks into the helper, but might be
> a worthwhile cleanup on its own.
> 
> (Michal Hocko provided most of the kerneldoc comment.)
> 
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Acked-by: Michal Hocko <mhocko@...e.com>
> Signed-off-by: Vegard Nossum <vegard.nossum@...cle.com>

Acked-by: David Rientjes <rientjes@...gle.com>

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