From: Pavel Emelyanov <xemul@parallels.com>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH bugfix] proc/pagemap: correctly report non-present ptes and holes between vmas
Date: Sat, 28 Apr 2012 20:24:59 +0400 [thread overview]
Message-ID: <4F9C19DB.2050601@parallels.com> (raw)
In-Reply-To: <20120428162229.15658.56316.stgit@zurg>
On 04/28/2012 08:22 PM, Konstantin Khlebnikov wrote:
> This patch resets current pagemap-entry if current pte isn't present,
> or if current vma is over. Otherwise pagemap reports last entry again and again.
>
> non-present pte reporting was broken in commit v3.3-3738-g092b50b
> ("pagemap: introduce data structure for pagemap entry")
>
> reporting for holes was broken in commit v3.3-3734-g5aaabe8
> ("pagemap: avoid splitting thp when reading /proc/pid/pagemap")
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
> Reported-by: Pavel Emelyanov <xemul@parallels.com>
> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Andi Kleen <ak@linux.intel.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
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WARNING: multiple messages have this Message-ID (diff)
From: Pavel Emelyanov <xemul@parallels.com>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH bugfix] proc/pagemap: correctly report non-present ptes and holes between vmas
Date: Sat, 28 Apr 2012 20:24:59 +0400 [thread overview]
Message-ID: <4F9C19DB.2050601@parallels.com> (raw)
In-Reply-To: <20120428162229.15658.56316.stgit@zurg>
On 04/28/2012 08:22 PM, Konstantin Khlebnikov wrote:
> This patch resets current pagemap-entry if current pte isn't present,
> or if current vma is over. Otherwise pagemap reports last entry again and again.
>
> non-present pte reporting was broken in commit v3.3-3738-g092b50b
> ("pagemap: introduce data structure for pagemap entry")
>
> reporting for holes was broken in commit v3.3-3734-g5aaabe8
> ("pagemap: avoid splitting thp when reading /proc/pid/pagemap")
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
> Reported-by: Pavel Emelyanov <xemul@parallels.com>
> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Andi Kleen <ak@linux.intel.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
next prev parent reply other threads:[~2012-04-28 16:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-28 16:22 [PATCH bugfix] proc/pagemap: correctly report non-present ptes and holes between vmas Konstantin Khlebnikov
2012-04-28 16:22 ` Konstantin Khlebnikov
2012-04-28 16:24 ` Pavel Emelyanov [this message]
2012-04-28 16:24 ` Pavel Emelyanov
2012-04-30 15:25 ` Naoya Horiguchi
2012-04-30 15:25 ` Naoya Horiguchi
2012-04-30 19:19 ` Konstantin Khlebnikov
2012-04-30 19:19 ` Konstantin Khlebnikov
2012-04-30 22:12 ` Naoya Horiguchi
2012-04-30 22:12 ` Naoya Horiguchi
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