linux-kernel - Re: add_to_swap_cache with GFP

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Date:	Wed, 1 Apr 2009 12:46:13 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
cc:	Minchan Kim <minchan.kim@...il.com>, linux-mm <linux-mm@...ck.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: add_to_swap_cache with GFP_ATOMIC ?

On Wed, 1 Apr 2009, KOSAKI Motohiro wrote:
> 
> IOW, GFP_ATOMIC on add_to_swap() was introduced accidentally. the reason 
> was old add_to_page_cache() didn't have gfp_mask parameter and we didn't
>  have the reason of changing add_to_swap() behavior.
> I think it don't have deeply reason and changing GFP_NOIO
> don't cause regression.

You may well be right: we'll see if you send in a patch to change it.
But I won't be sending in that patch myself, that's all :)

Hugh
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