linux-kernel - Re: [PATCH 3/5] mm: convert i_mmap

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Message-ID: <537F8671.9040805@redhat.com>
Date:	Fri, 23 May 2014 13:33:37 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Davidlohr Bueso <davidlohr@...com>, akpm@...ux-foundation.org
CC:	mingo@...nel.org, peterz@...radead.org, mgorman@...e.de,
	aswin@...com, linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] mm: convert i_mmap_mutex to rwsem

On 05/22/2014 11:33 PM, Davidlohr Bueso wrote:
> The i_mmap_mutex is a close cousin of the anon vma lock,
> both protecting similar data, one for file backed pages
> and the other for anon memory. To this end, this lock can
> also be a rwsem.
> 
> This conversion is straightforward. For now, all users take
> the write lock.
> 
> Signed-off-by: Davidlohr Bueso <davidlohr@...com>

Reviewed-by: Rik van Riel <riel@...hat.com>


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