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From: Johannes Weiner <hannes@cmpxchg.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Mel Gorman <mel@csn.ul.ie>,
	linux-mm@kvack.org
Subject: [patch 0/5] vmscan: cut down on struct scan_control
Date: Sat,  1 May 2010 01:05:28 +0200	[thread overview]
Message-ID: <20100430222009.379195565@cmpxchg.org> (raw)

Hi,

here are 5 patches that remove 4 members from struct scan_control.

sc->may_unmap is no longer used after patch #1, sc->may_swap is folded
into sc->swappiness, sc->all_unreclaimable is made a return value, and
sc->isolate_pages is replaced with a branch on sc->mem_cgroup (reusing
a nearby branch, so no additional one) and direct function calling.

So nothing too spectecular.  It saves a bit of code and 2 to 4 stack
words depending on the wordsize and call path.

	Hannes

 include/linux/memcontrol.h |   13 +++--
 include/linux/swap.h       |    4 -
 mm/memcontrol.c            |   13 +++--
 mm/vmscan.c                |  105 ++++++++++++++++++---------------------------
 4 files changed, 61 insertions(+), 74 deletions(-)

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             reply	other threads:[~2010-04-30 23:06 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-30 23:05 Johannes Weiner [this message]
2010-04-30 23:05 ` [patch 1/5] vmscan: fix unmapping behaviour for RECLAIM_SWAP Johannes Weiner
2010-05-13  3:02   ` KOSAKI Motohiro
2010-05-19 21:32     ` Johannes Weiner
2010-04-30 23:05 ` [patch 2/5] vmscan: remove may_unmap scan control Johannes Weiner
2010-04-30 23:05 ` [patch 3/5] vmscan: remove all_unreclaimable " Johannes Weiner
2010-05-13  3:25   ` KOSAKI Motohiro
2010-05-19 21:34     ` Johannes Weiner
2010-05-31 18:32   ` Greg Thelen
2010-06-01  3:29     ` [PATCH] vmscan: Fix do_try_to_free_pages() return value when priority==0 reclaim failure KOSAKI Motohiro
2010-06-01  6:48       ` KAMEZAWA Hiroyuki
2010-06-01  8:10       ` Balbir Singh
2010-06-02  0:33         ` KAMEZAWA Hiroyuki
2010-06-01 14:50       ` Greg Thelen
2010-06-04 14:32       ` Johannes Weiner
2010-04-30 23:05 ` [patch 4/5] vmscan: remove isolate_pages callback scan control Johannes Weiner
2010-05-13  3:29   ` KOSAKI Motohiro
2010-05-19 21:42     ` Johannes Weiner
2010-05-20 23:23       ` KOSAKI Motohiro
2010-04-30 23:05 ` [patch 5/5] vmscan: remove may_swap " Johannes Weiner
2010-05-13  3:36   ` KOSAKI Motohiro
2010-05-19 21:44     ` Johannes Weiner
2010-05-21  0:15       ` KOSAKI Motohiro

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