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Jiang Liu dbe67df4ba mm: enhance free_reserved_area() to support poisoning memory with zero 
Address more review comments from last round of code review.
1) Enhance free_reserved_area() to support poisoning freed memory with
   pattern '0'. This could be used to get rid of poison_init_mem()
   on ARM64.
2) A previous patch has disabled memory poison for initmem on s390
   by mistake, so restore to the original behavior.
3) Remove redundant PAGE_ALIGN() when calling free_reserved_area().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: <sworddragon2@aol.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:07:32 -07:00
..
drivers mconsole: we'd better initialize pos before passing it to vfs_read()... 2013-06-19 12:37:57 +04:00
include consolidate io_remap_pfn_range definitions 2013-06-29 12:46:35 +04:00
kernel mm: enhance free_reserved_area() to support poisoning memory with zero 2013-07-03 16:07:32 -07:00
os-Linux Merge commit '8700c95adb03' into timers/nohz 2013-05-02 17:54:19 +02:00
scripts um: Preinclude include/linux/kern_levels.h 2012-09-27 20:20:09 +02:00
sys-ia64 uml: remove useless comments 2009-04-01 08:59:17 -07:00
sys-ppc dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
.gitignore um: tell git to ignore generated files 2010-03-06 11:26:28 -08:00
defconfig Merge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2012-08-01 16:45:02 -07:00
Kconfig.char um: clean Kconfig up a bit 2011-11-02 14:15:29 +01:00
Kconfig.common idle: Remove GENERIC_IDLE_LOOP config switch 2013-04-17 10:39:38 +02:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Kconfig.net arch/um: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:38:04 -08:00
Kconfig.rest um: switch to use of drivers/Kconfig 2011-11-02 14:15:41 +01:00
Kconfig.um arch/um: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:38:04 -08:00
Makefile UAPI: Partition the header include path sets and add uapi/ header directories 2012-10-02 18:01:26 +01:00
Makefile-ia64
Makefile-os-Linux
Makefile-ppc
Makefile-skas