From: Andrew Morton <akpm@linux-foundation.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Pavel Emelyanov <xemul@parallels.com>,
linux-mm@kvack.org, Wu Fengguang <fengguang.wu@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2 v2] smaps: show VM_SOFTDIRTY flag in VmFlags line
Date: Mon, 7 Oct 2013 17:51:25 -0700 [thread overview]
Message-ID: <20131007175125.7bb300853d37b6a64eba248d@linux-foundation.org> (raw)
In-Reply-To: <1381155304-2ro6e10t-mutt-n-horiguchi@ah.jp.nec.com>
On Mon, 07 Oct 2013 10:15:04 -0400 Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> wrote:
> From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> 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 <n-horiguchi@ah.jp.nec.com>
> ---
> 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",
Documentation/filesystems/proc.txt needs updating, please.
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next prev parent reply other threads:[~2013-10-08 0:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-04 19:02 [PATCH 1/2] smaps: show VM_SOFTDIRTY flag in VmFlags line Naoya Horiguchi
2013-10-04 19:02 ` [PATCH 2/2] page-types.c: support KPF_SOFTDIRTY bit Naoya Horiguchi
2013-10-08 0:50 ` Andrew Morton
2013-10-07 13:21 ` [PATCH 1/2] smaps: show VM_SOFTDIRTY flag in VmFlags line Pavel Emelyanov
2013-10-07 14:15 ` [PATCH 1/2 v2] " Naoya Horiguchi
2013-10-07 21:21 ` Cyrill Gorcunov
2013-10-08 0:51 ` Andrew Morton [this message]
2013-10-08 2:54 ` Naoya Horiguchi
2013-10-08 8:59 ` Cyrill Gorcunov
2013-10-08 9:03 ` Cyrill Gorcunov
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