From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753619Ab2ATPPU (ORCPT ); Fri, 20 Jan 2012 10:15:20 -0500 Received: from mail-gx0-f174.google.com ([209.85.161.174]:51151 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752830Ab2ATPPS (ORCPT ); Fri, 20 Jan 2012 10:15:18 -0500 From: Akinobu Mita To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org Cc: Akinobu Mita , Tejun Heo , Christoph Lameter Subject: [PATCH] percpu: use bitmap_clear Date: Sat, 21 Jan 2012 00:15:23 +0900 Message-Id: <1327072528-8479-1-git-send-email-akinobu.mita@gmail.com> X-Mailer: git-send-email 1.7.4.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use bitmap_clear rather than clearing individual bits in a memory region. Signed-off-by: Akinobu Mita Cc: Tejun Heo Cc: Christoph Lameter --- mm/percpu-vm.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c index 12a48a88..405d331 100644 --- a/mm/percpu-vm.c +++ b/mm/percpu-vm.c @@ -184,8 +184,7 @@ static void pcpu_unmap_pages(struct pcpu_chunk *chunk, page_end - page_start); } - for (i = page_start; i < page_end; i++) - __clear_bit(i, populated); + bitmap_clear(populated, page_start, page_end - page_start); } /** -- 1.7.4.4