From: Minchan Kim <minchan.kim@gmail.com>
To: Mandeep Singh Baines <msb@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mel@csn.ul.ie>,
Johannes Weiner <hannes@cmpxchg.org>,
Wu Fengguang <fengguang.wu@intel.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
wad@chromium.org, olofj@chromium.org,
Shaohua Li <shaohua.li@intel.com>
Subject: Re: [PATCH] vmscan: move referenced VM_EXEC pages to active list
Date: Mon, 25 Oct 2010 07:52:47 +0900 [thread overview]
Message-ID: <AANLkTinWp-M4S5EXz6-xJvHAnzdk96_5+d2OJVjCycsm@mail.gmail.com> (raw)
In-Reply-To: <1287787911-4257-1-git-send-email-msb@chromium.org>
On Sat, Oct 23, 2010 at 7:51 AM, Mandeep Singh Baines <msb@chromium.org> wrote:
> In commit 64574746, "vmscan: detect mapped file pages used only once",
> Johannes Weiner, added logic to page_check_reference to cycle again
> used once pages.
>
> In commit 8cab4754, "vmscan: make mapped executable pages the first
> class citizen", Wu Fengguang, added logic to shrink_active_list which
> protects file-backed VM_EXEC pages by keeping them in the active_list if
> they are referenced.
>
> This patch adds logic to move such pages from the inactive list to the
> active list immediately if they have been referenced. If a VM_EXEC page
> is seen as referenced during an inactive list scan, that reference must
> have occurred after the page was put on the inactive list. There is no
> need to wait for the page to be referenced again.
>
> Change-Id: I17c312e916377e93e5a92c52518b6c829f9ab30b
> Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
It seems to be similar to http://www.spinics.net/lists/linux-mm/msg09617.html.
I don't know what it is going. Shaohua?
--
Kind regards,
Minchan Kim
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next prev parent reply other threads:[~2010-10-24 22:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-22 22:51 Mandeep Singh Baines
2010-10-24 22:52 ` Minchan Kim [this message]
2010-10-25 0:44 ` KOSAKI Motohiro
2010-10-31 3:58 ` Shaohua Li
2010-11-01 13:41 ` Minchan Kim
2010-11-02 0:31 ` Shaohua Li
-- strict thread matches above, loose matches on Subject: below --
2010-10-22 22:49 Mandeep Singh Baines
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