Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755415Ab3JGOPy (ORCPT ); Mon, 7 Oct 2013 10:15:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:13830 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754720Ab3JGOPx (ORCPT ); Mon, 7 Oct 2013 10:15:53 -0400 Date: Mon, 07 Oct 2013 10:15:04 -0400 From: Naoya Horiguchi To: Pavel Emelyanov Cc: linux-mm@kvack.org, Andrew Morton , Wu Fengguang , linux-kernel@vger.kernel.org Message-ID: <1381155304-2ro6e10t-mutt-n-horiguchi@ah.jp.nec.com> In-Reply-To: <5252B56C.8030903@parallels.com> References: <1380913335-17466-1-git-send-email-n-horiguchi@ah.jp.nec.com> <5252B56C.8030903@parallels.com> Subject: [PATCH 1/2 v2] smaps: show VM_SOFTDIRTY flag in VmFlags line Mime-Version: 1.0 Content-Type: text/plain; charset=iso-2022-jp Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Mutt-Fcc: ~/Maildir/sent/ User-Agent: Mutt 1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1629 Lines: 48 On Mon, Oct 07, 2013 at 05:21:48PM +0400, Pavel Emelyanov wrote: > On 10/04/2013 11:02 PM, Naoya Horiguchi wrote: > > This flag shows that soft dirty bit is not enabled yet. > > You can enable it by "echo 4 > /proc/pid/clear_refs." > > The comment is not correct. Per-VMA soft-dirty flag means, that > VMA is "newly created" one and thus represents a new (dirty) are > in task's VM. Thanks for the correction. I changed the description. Naoya --- From: Naoya Horiguchi Date: Fri, 4 Oct 2013 13:42:13 -0400 Subject: [PATCH] smaps: show VM_SOFTDIRTY flag in VmFlags line This flag shows that the VMA is "newly created" and thus represents "dirty" in the task's VM. You can clear it by "echo 4 > /proc/pid/clear_refs." Signed-off-by: Naoya Horiguchi --- fs/proc/task_mmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 7366e9d..c591928 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -561,6 +561,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_NONLINEAR)] = "nl", [ilog2(VM_ARCH_1)] = "ar", [ilog2(VM_DONTDUMP)] = "dd", +#ifdef CONFIG_MEM_SOFT_DIRTY + [ilog2(VM_SOFTDIRTY)] = "sd", +#endif [ilog2(VM_MIXEDMAP)] = "mm", [ilog2(VM_HUGEPAGE)] = "hg", [ilog2(VM_NOHUGEPAGE)] = "nh", -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/