Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935951Ab3DKPP3 (ORCPT ); Thu, 11 Apr 2013 11:15:29 -0400 Received: from a9-50.smtp-out.amazonses.com ([54.240.9.50]:57783 "EHLO a9-50.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932840Ab3DKPP2 (ORCPT ); Thu, 11 Apr 2013 11:15:28 -0400 X-Greylist: delayed 698 seconds by postgrey-1.27 at vger.kernel.org; Thu, 11 Apr 2013 11:15:28 EDT Date: Thu, 11 Apr 2013 15:03:48 +0000 From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Simon Jeons cc: Joonsoo Kim , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Mel Gorman , Hugh Dickins , Rik van Riel , Minchan Kim , Pekka Enberg , Matt Mackall Subject: Re: [PATCH 2/3] mm, slub: count freed pages via rcu as this task's reclaimed_slab In-Reply-To: <51663210.7070502@gmail.com> Message-ID: <0000013df99fbc98-f20c5345-92eb-405b-81e8-df781dab2391-000000@email.amazonses.com> References: <1365470478-645-1-git-send-email-iamjoonsoo.kim@lge.com> <1365470478-645-2-git-send-email-iamjoonsoo.kim@lge.com> <5163E194.3080600@gmail.com> <0000013def363b50-9a16dd09-72ad-494f-9c25-17269fc3aab3-000000@email.amazonses.com> <5164DA6A.5060607@gmail.com> <0000013df43a48e5-6addd57e-952b-4754-848e-6d454b0a906c-000000@email.amazonses.com> <51663210.7070502@gmail.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-SES-Outgoing: 2013.04.11-54.240.9.50 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 563 Lines: 16 On Thu, 11 Apr 2013, Simon Jeons wrote: > It seems that I need to simple my question. > All pages which order >=1 are compound pages? In the slub allocator that is true. One can request and free a series of contiguous pages that are not compound pages from the page allocator and a couple of subsystems use those. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/