From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753531Ab1EFQDk (ORCPT ); Fri, 6 May 2011 12:03:40 -0400 Received: from mail-px0-f173.google.com ([209.85.212.173]:41357 "EHLO mail-px0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751605Ab1EFQDj (ORCPT ); Fri, 6 May 2011 12:03:39 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:date:content-type:x-mailer :content-transfer-encoding:message-id:mime-version; b=TY95IwcyP6j6J9AccRHOAylg59WT6aqoMS35828+Yn8Vzz5dKyVUmU/5u1nBn3tUF5 wxQgeeAfxeq8f0tCJfWLwqxExlmHURDxbjuPLyVLs44V0BGitVwqIBH4MLlgWQng+pVL 8p/N4rZYo6Hw+Ic0fI7pl6Oo8l95NaeH2LWeU= Subject: [PATCH]mm/migrate.c: clean up comment From: "Figo.zhang" To: lkml , "linux-mm@kvack.org" Cc: Andrew Morton Date: Sat, 07 May 2011 00:03:11 +0800 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.0.1 Content-Transfer-Encoding: 7bit Message-ID: <1304697799.2450.9.camel@figo-desktop> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org clean up comment. prepare cgroup return 0 or -ENOMEN, others return -EAGAIN. avoid conflict meanings. Signed-off-by: Figo.zhang --- mm/migrate.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 34132f8..d65b351 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -647,7 +647,6 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, if (unlikely(split_huge_page(page))) goto move_newpage; - /* prepare cgroup just returns 0 or -ENOMEM */ rc = -EAGAIN; if (!trylock_page(page)) { @@ -687,7 +686,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, goto unlock; } - /* charge against new page */ + /* charge against new page, return 0 or -ENOMEM */ charge = mem_cgroup_prepare_migration(page, newpage, &mem, GFP_KERNEL); if (charge == -ENOMEM) { rc = -ENOMEM;