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
..
block_io.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
console.c	vt: introduce and use vt_kmsg_redirect() function	2009-12-15 08:53:28 -08:00
hibernate.c	swap: revert special hibernation allocation	2010-09-09 18:57:25 -07:00
Kconfig	suspend: Move NVS save/restore code to generic suspend functionality	2010-06-10 11:02:34 -04:00
main.c	PM: Make it possible to avoid races between wakeup and system sleep	2010-07-19 01:58:48 +02:00
Makefile	suspend: Move NVS save/restore code to generic suspend functionality	2010-06-10 11:02:34 -04:00
nvs.c	suspend: Move NVS save/restore code to generic suspend functionality	2010-06-10 11:02:34 -04:00
power.h	PM / Hibernate: Separate block_io	2010-05-10 23:08:18 +02:00
poweroff.c	Input: sysrq - drop tty argument from sysrq ops handlers	2010-08-19 22:07:06 -07:00
process.c	workqueue: reimplement workqueue freeze using max_active	2010-06-29 10:07:12 +02:00
snapshot.c	swap: revert special hibernation allocation	2010-09-09 18:57:25 -07:00
suspend_test.c	PM: Make warning in suspend_test_finish() less likely to happen	2009-10-22 08:23:45 +09:00
suspend.c	PM / Suspend: Fix ordering of calls in suspend error paths	2010-07-19 02:00:35 +02:00
swap.c	swap: revert special hibernation allocation	2010-09-09 18:57:25 -07:00
user.c	PM / Hibernate: Snapshot cleanup	2010-05-10 23:08:17 +02:00