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linux/arch/ia64
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Andrew Morton 5576646f3c revert "mm: fix-up zone present pages" 
Revert commit 7f1290f2f2 ("mm: fix-up zone present pages")

That patch tried to fix a issue when calculating zone->present_pages,
but it caused a regression on 32bit systems with HIGHMEM.  With that
change, reset_zone_present_pages() resets all zone->present_pages to
zero, and fixup_zone_present_pages() is called to recalculate
zone->present_pages when the boot allocator frees core memory pages into
buddy allocator.  Because highmem pages are not freed by bootmem
allocator, all highmem zones' present_pages becomes zero.

Various options for improving the situation are being discussed but for
now, let's return to the 3.6 code.

Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-16 14:33:04 -08:00
..
configs [IA64] defconfig: Remove CONFIG_MISC_DEVICES 2012-08-20 13:04:29 -07:00
dig Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
hp TTY: use tty_port_link_device 2012-08-13 16:50:19 -07:00
include UAPI: Make arch/ia64/include/asm/kvm_para.h generic 2012-10-18 17:27:43 -07:00
kernel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-13 10:04:42 +09:00
kvm KVM: split kvm_arch_flush_shadow 2012-09-06 16:37:25 +03:00
lib
mm revert "mm: fix-up zone present pages" 2012-11-16 14:33:04 -08:00
oprofile Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
pci Merge branch 'pci/yinghai-misc' into next 2012-09-24 17:24:11 -06:00
scripts
sn ia64/PCI: Use hotplug-safe pci_get_domain_bus_and_slot() 2012-09-12 14:10:33 -06:00
uv
xen sections: fix section conflicts in arch/ia64 2012-10-06 03:04:39 +09:00
install.sh
Kconfig Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
Kconfig.debug
Makefile
module.lds