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Rafael J. Wysocki c9e664f1fd PM / Hibernate: Fix memory corruption related to swap ... There is a problem that swap pages allocated before the creation of a hibernation image can be released and used for storing the contents of different memory pages while the image is being saved. Since the kernel stored in the image doesn't know of that, it causes memory corruption to occur after resume from hibernation, especially on systems with relatively small RAM that need to swap often. This issue can be addressed by keeping the GFP_IOFS bits clear in gfp_allowed_mask during the entire hibernation, including the saving of the image, until the system is finally turned off or the hibernation is aborted. Unfortunately, for this purpose it's necessary to rework the way in which the hibernate and suspend code manipulates gfp_allowed_mask. This change is based on an earlier patch from Hugh Dickins. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Hugh Dickins <hughd@google.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: stable@kernel.org		14 years ago
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Kconfig	PM / OPP: Hide OPP configuration when SoCs do not provide an implementation	14 years ago
Makefile	suspend: Move NVS save/restore code to generic suspend functionality	15 years ago
block_io.c	block: unify flags for struct bio and struct request	15 years ago
console.c	vt: introduce and use vt_kmsg_redirect() function	15 years ago
hibernate.c	PM / Hibernate: Fix memory corruption related to swap	14 years ago
main.c	PM: Add sysfs attr for rechecking dev hash from PM trace	15 years ago
nvs.c	suspend: Move NVS save/restore code to generic suspend functionality	15 years ago
power.h	PM / Hibernate: Make default image size depend on total RAM size	15 years ago
poweroff.c	Input: sysrq - drop tty argument from sysrq ops handlers	15 years ago
process.c	PM: Allow wakeup events to abort freezing of tasks	15 years ago
snapshot.c	use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages	15 years ago
suspend.c	PM / Hibernate: Fix memory corruption related to swap	14 years ago
suspend_test.c	…
swap.c	PM / Hibernate: Use async I/O when reading compressed hibernation image	14 years ago
user.c	PM / Hibernate: Fix memory corruption related to swap	14 years ago