From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id 753156B02A4 for ; Wed, 28 Jul 2010 21:49:41 -0400 (EDT) Received: from m1.gw.fujitsu.co.jp ([10.0.50.71]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o6T1nbM9023858 for (envelope-from iram.shahzad@jp.fujitsu.com); Thu, 29 Jul 2010 10:49:37 +0900 Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id A0EB245DE52 for ; Thu, 29 Jul 2010 10:49:37 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (s1.gw.fujitsu.co.jp [10.0.50.91]) by m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 7DA6C45DE50 for ; Thu, 29 Jul 2010 10:49:37 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 608A71DB8052 for ; Thu, 29 Jul 2010 10:49:37 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.249.87.105]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id E240F1DB804F for ; Thu, 29 Jul 2010 10:49:33 +0900 (JST) Message-ID: From: "Iram Shahzad" Subject: compaction: why depends on HUGETLB_PAGE Date: Thu, 29 Jul 2010 10:53:12 +0900 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-2022-jp"; reply-type=original Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: linux-mm@kvack.org Cc: mel@csn.ul.ie List-ID: Hi I have found that memory compaction (CONFIG_COMPACTION) is mainlined while looking at 2.6.35-rc5 source code. I have a question regarding its dependency on HUGETLB_PAGE. While trying to use CONFIG_COMPACTION on ARM architecture, I found that I cannot enable CONFIG_COMPACTION because it depends on CONFIG_HUGETLB_PAGE which is not available on ARM. I disabled the dependency and was able to build it. And it looks like working! My question is: why does it depend on CONFIG_HUGETLB_PAGE? Is it wrong to use it on ARM by disabling CONFIG_HUGETLB_PAGE? Iram -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org