linux-kernel - Re: [PATCH 10/9] mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool

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Message-ID: <50E5234F.8040707@redhat.com>
Date:	Thu, 03 Jan 2013 01:21:03 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Michel Lespinasse <walken@...gle.com>
CC:	Andy Lutomirski <luto@...capital.net>,
	Ingo Molnar <mingo@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Hugh Dickins <hughd@...gle.com>, Jorn_Engel <joern@...fs.org>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/9] mm: make do_mmap_pgoff return populate as a size
 in bytes, not as a bool

On 12/22/2012 04:45 AM, Michel Lespinasse wrote:
> do_mmap_pgoff() rounds up the desired size to the next PAGE_SIZE multiple,
> however there was no equivalent code in mm_populate(), which caused issues.
>
> This could be fixed by introduced the same rounding in mm_populate(),
> however I think it's preferable to make do_mmap_pgoff() return populate
> as a size rather than as a boolean, so we don't have to duplicate the
> size rounding logic in mm_populate().
>
> Signed-off-by: Michel Lespinasse <walken@...gle.com>

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

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