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Bojan Smojver f8262d4768 PM / Hibernate: fix the number of pages used for hibernate/thaw buffering 
Hibernation regression fix, since 3.2.

Calculate the number of required free pages based on non-high memory
pages only, because that is where the buffers will come from.

Commit 081a9d043c introduced a new buffer
page allocation logic during hibernation, in order to improve the
performance. The amount of pages allocated was calculated based on total
amount of pages available, although only non-high memory pages are
usable for this purpose. This caused hibernation code to attempt to over
allocate pages on platforms that have high memory, which led to hangs.

Signed-off-by: Bojan Smojver <bojan@rexursive.com>
Signed-off-by: Rafael J. Wysocki <rjw@suse.de>
 		2012-04-24 23:53:28 +02:00
..
Kconfig Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm 2011-10-28 12:02:27 -07:00
Makefile PM / QoS: unconditionally build the feature 2012-02-13 16:23:42 +01:00
block_io.c block: kill off REQ_UNPLUG 2011-03-10 08:52:27 +01:00
console.c PM / VT: Cleanup #if defined uglyness and fix compile error 2011-10-16 23:28:51 +02:00
hibernate.c PM / Sleep: Move disabling of usermode helpers to the freezer 2012-03-28 23:30:21 +02:00
main.c PM / Sleep: Make enter_state() in kernel/power/suspend.c static 2012-02-17 23:36:10 +01:00
power.h PM / Sleep: Make enter_state() in kernel/power/suspend.c static 2012-02-17 23:36:10 +01:00
poweroff.c Input: sysrq - drop tty argument from sysrq ops handlers 2010-08-19 22:07:06 -07:00
process.c PM / Sleep: Mitigate race between the freezer and request_firmware() 2012-03-28 23:30:28 +02:00
qos.c PM / QoS: add pm_qos_update_request_timeout() API 2012-03-28 23:31:24 +02:00
snapshot.c Power management updates for 3.4 2012-03-21 10:15:51 -07:00
suspend.c PM / Sleep: Move disabling of usermode helpers to the freezer 2012-03-28 23:30:21 +02:00
suspend_test.c PM: Make warning in suspend_test_finish() less likely to happen 2009-10-22 08:23:45 +09:00
swap.c PM / Hibernate: fix the number of pages used for hibernate/thaw buffering 2012-04-24 23:53:28 +02:00
user.c PM / Sleep: Move disabling of usermode helpers to the freezer 2012-03-28 23:30:21 +02:00