Files
ack-tegra/include/linux
Hugh Dickins 910321ea81 swap: revert special hibernation allocation
Please revert 2.6.36-rc commit d2997b1042
"hibernation: freeze swap at hibernation".  It complicated matters by
adding a second swap allocation path, just for hibernation; without in any
way fixing the issue that it was intended to address - page reclaim after
fixing the hibernation image might free swap from a page already imaged as
swapcache, letting its swap be reallocated to store a different page of
the image: resulting in data corruption if the imaged page were freed as
clean then swapped back in.  Pages freed to si->swap_map were still in
danger of being reallocated by the alternative allocation path.

I guess it inadvertently fixed slow SSD swap allocation for hibernation,
as reported by Nigel Cunningham: by missing out the discards that occur on
the usual swap allocation path; but that was unintentional, and needs a
separate fix.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Ondrej Zary <linux@rainbow-software.org>
Cc: Andrea Gelmini <andrea.gelmini@gmail.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Nigel Cunningham <nigel@tuxonice.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-09 18:57:25 -07:00
..
2010-08-05 13:26:20 +01:00
2010-08-12 06:38:24 +10:00
2010-08-12 08:43:30 -07:00
2010-08-12 08:43:30 -07:00
2010-08-12 08:43:30 -07:00
2010-08-18 01:09:01 -04:00
2010-09-09 18:57:23 -07:00
2010-08-06 15:36:47 -05:00
2010-08-04 11:00:45 +02:00
2010-08-12 04:14:05 +01:00
2010-08-18 08:35:46 -04:00
2010-08-18 08:35:48 -04:00
2010-07-19 11:54:16 +02:00
2010-08-11 09:23:22 +02:00
2010-08-11 18:21:02 +02:00
2010-08-09 20:45:05 -07:00
2010-08-10 11:49:21 -07:00
2010-08-12 11:27:58 +02:00
2010-09-09 18:57:24 -07:00
2010-08-02 06:39:44 +03:00
2010-08-01 10:47:00 +03:00
2010-08-09 16:48:45 -04:00
2010-09-09 09:05:06 -07:00
2010-08-09 20:45:00 -07:00
2010-08-11 00:29:47 -04:00
2010-07-31 19:53:06 +08:00
2010-07-19 01:58:48 +02:00
2010-07-19 01:58:48 +02:00
2010-08-04 21:53:17 -07:00
2010-08-09 16:47:27 -04:00
2010-07-22 13:46:21 -07:00
2010-07-23 17:08:41 +04:00
2010-09-08 15:04:10 +02:00
2010-08-09 16:48:44 -04:00
2010-08-18 08:35:47 -04:00
2010-08-06 10:37:02 -04:00
2010-08-11 08:59:02 -07:00