linux-kernel - Re: [PATCH] fix tmpfs BUG and AOP_WRITEPAGE

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Message-Id: <20071024140836.a0098180.akpm@linux-foundation.org>
Date:	Wed, 24 Oct 2007 14:08:36 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Hugh Dickins <hugh@...itas.com>
Cc:	penberg@...helsinki.fi, ezk@...sunysb.edu, ryan@...nie.org,
	mhalcrow@...ibm.com, cjwatson@...ntu.com,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, stable@...nel.org
Subject: Re: [PATCH] fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE

On Wed, 24 Oct 2007 22:02:15 +0100 (BST)
Hugh Dickins <hugh@...itas.com> wrote:

> --- 2.6.24-rc1/mm/shmem.c	2007-10-24 07:16:04.000000000 +0100
> +++ linux/mm/shmem.c	2007-10-24 20:24:31.000000000 +0100
> @@ -915,6 +915,11 @@ static int shmem_writepage(struct page *
>  	struct inode *inode;
>  
>  	BUG_ON(!PageLocked(page));
> +	if (!wbc->for_reclaim) {
> +		set_page_dirty(page);
> +		unlock_page(page);
> +		return 0;
> +	}
>  	BUG_ON(page_mapped(page));

Needs a comment, methinks.
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