linux-kernel - Re: [PATCH 3/5] mm: gup: use get_user_pages_unlocked within get_user_pages

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Message-ID: <20141030122113.GC31134@node.dhcp.inet.fi>
Date:	Thu, 30 Oct 2014 14:21:13 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Michel Lespinasse <walken@...gle.com>,
	Andrew Jones <drjones@...hat.com>,
	Hugh Dickins <hughd@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Andres Lagar-Cavilla <andreslc@...gle.com>,
	Minchan Kim <minchan@...nel.org>,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	"\\\"Dr. David Alan Gilbert\\\"" <dgilbert@...hat.com>,
	Peter Feiner <pfeiner@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	David Miller <davem@...emloft.net>,
	Steve Capper <steve.capper@...aro.org>,
	Johannes Weiner <jweiner@...hat.com>
Subject: Re: [PATCH 3/5] mm: gup: use get_user_pages_unlocked within
 get_user_pages_fast

On Wed, Oct 29, 2014 at 05:35:18PM +0100, Andrea Arcangeli wrote:
> This allows the get_user_pages_fast slow path to release the mmap_sem
> before blocking.
> 
> Signed-off-by: Andrea Arcangeli <aarcange@...hat.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
-- 
 Kirill A. Shutemov
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