linux-kernel - Re: [PATCH] mm: add replace_page_cache

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Message-ID: <4D08F1A2.6040801@redhat.com>
Date:	Wed, 15 Dec 2010 11:49:38 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Miklos Szeredi <miklos@...redi.hu>
CC:	akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: add replace_page_cache_page() function

On 12/15/2010 10:49 AM, Miklos Szeredi wrote:
> From: Miklos Szeredi<mszeredi@...e.cz>
>
> This function basically does:
>
>       remove_from_page_cache(old);
>       page_cache_release(old);
>       add_to_page_cache_locked(new);
>
> Except it does this atomically, so there's no possibility for the
> "add" to fail because of a race.
>
> This is used by fuse to move pages into the page cache.
>
> Signed-off-by: Miklos Szeredi<mszeredi@...e.cz>

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

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