linux-kernel - Re: [PATCH] shmem: call set_page

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Date:	Tue, 14 Jul 2009 23:33:08 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] shmem: call set_page_dirty() with locked page

On Tue, Jul 14, 2009 at 05:29:26PM +0800, Wu Fengguang wrote:
>Here set_page_dirty() can be moved into the page lock.
>
>CC: Hugh Dickins <hugh@...itas.com>
>Signed-off-by: Wu Fengguang <fengguang.wu@...el.com>

Reviewed-by: WANG Cong <xiyou.wangcong@...il.com>


>---
> mm/shmem.c |    2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>--- linux.orig/mm/shmem.c
>+++ linux/mm/shmem.c
>@@ -1630,8 +1630,8 @@ shmem_write_end(struct file *file, struc
> 	if (pos + copied > inode->i_size)
> 		i_size_write(inode, pos + copied);
> 
>-	unlock_page(page);
> 	set_page_dirty(page);
>+	unlock_page(page);
> 	page_cache_release(page);
> 
> 	return copied;
>--
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