From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760138AbYFESjs (ORCPT ); Thu, 5 Jun 2008 14:39:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753286AbYFESji (ORCPT ); Thu, 5 Jun 2008 14:39:38 -0400 Received: from smtp-out.google.com ([216.239.33.17]:48817 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750826AbYFESjh (ORCPT ); Thu, 5 Jun 2008 14:39:37 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:message-id:date:from:to:subject:mime-version: content-type:content-transfer-encoding:content-disposition; b=YPM8dtpW+H7IKzyxUjxhTd5VaOy6tGDm6bES5d4TqauqrQE5kmo7iqkSw44+EMb0W qlAF24eVjCL8aSwrQYBVw== Message-ID: <4ca0a85e0806051139q28d70661w569a036f54dcf89b@mail.gmail.com> Date: Thu, 5 Jun 2008 14:39:25 -0400 From: "Thomas Tuttle" To: mpm@selenic.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] pagemap: Return map count, not reference count, in /proc/kpagecount. (v2 of series) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since pagemap is all about examining pages mapped into processes' memory spaces, it makes sense for kpagecount to return the map counts, not the reference counts. Signed-off-by: Thomas Tuttle --- fs/proc/proc_misc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 32dc14c..5a16090 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -726,7 +726,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf, if (!ppage) pcount = 0; else - pcount = atomic_read(&ppage->_count); + pcount = page_mapcount(ppage); if (put_user(pcount, out++)) { ret = -EFAULT; -- 1.5.3.6