From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f181.google.com (mail-pd0-f181.google.com [209.85.192.181]) by kanga.kvack.org (Postfix) with ESMTP id BBA536B0035 for ; Thu, 5 Dec 2013 20:19:52 -0500 (EST) Received: by mail-pd0-f181.google.com with SMTP id p10so51826pdj.40 for ; Thu, 05 Dec 2013 17:19:52 -0800 (PST) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com. [119.145.14.65]) by mx.google.com with ESMTPS id pk8si59630298pab.126.2013.12.05.17.19.44 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 05 Dec 2013 17:19:51 -0800 (PST) Message-ID: <52A1260B.2050007@huawei.com> Date: Fri, 6 Dec 2013 09:19:07 +0800 From: Jianguo Wu MIME-Version: 1.0 Subject: Re: [PATCH] mm: do_mincore() cleanup References: <52A03EE4.6030609@huawei.com> <1386254370-ui1ehq60-mutt-n-horiguchi@ah.jp.nec.com> In-Reply-To: <1386254370-ui1ehq60-mutt-n-horiguchi@ah.jp.nec.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Naoya Horiguchi Cc: Andrew Morton , Johannes Weiner , Minchan Kim , linux-mm@kvack.org, linux-kernel@vger.kernel.org, qiuxishi On 2013/12/5 22:39, Naoya Horiguchi wrote: > On Thu, Dec 05, 2013 at 04:52:52PM +0800, Jianguo Wu wrote: >> Two cleanups: >> 1. remove redundant codes for hugetlb pages. >> 2. end = pmd_addr_end(addr, end) restricts [addr, end) within PMD_SIZE, >> this may increase do_mincore() calls, remove it. >> >> Signed-off-by: Jianguo Wu > > Reviewed-by: Naoya Horiguchi Hi Naoya, thanks for your review! Jianguo Wu > > Thanks! > > Naoya > >> --- >> mm/mincore.c | 7 ------- >> 1 files changed, 0 insertions(+), 7 deletions(-) >> >> diff --git a/mm/mincore.c b/mm/mincore.c >> index da2be56..1016233 100644 >> --- a/mm/mincore.c >> +++ b/mm/mincore.c >> @@ -225,13 +225,6 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v >> >> end = min(vma->vm_end, addr + (pages << PAGE_SHIFT)); >> >> - if (is_vm_hugetlb_page(vma)) { >> - mincore_hugetlb_page_range(vma, addr, end, vec); >> - return (end - addr) >> PAGE_SHIFT; >> - } >> - >> - end = pmd_addr_end(addr, end); >> - >> if (is_vm_hugetlb_page(vma)) >> mincore_hugetlb_page_range(vma, addr, end, vec); >> else >> -- >> 1.7.1 >> >> >> -- >> 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 >> > > . > -- 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