Andi Kleen facb6011f3 HWPOISON: Add soft page offline support ... This is a simpler, gentler variant of memory_failure() for soft page offlining controlled from user space. It doesn't kill anything, just tries to invalidate and if that doesn't work migrate the page away. This is useful for predictive failure analysis, where a page has a high rate of corrected errors, but hasn't gone bad yet. Instead it can be offlined early and avoided. The offlining is controlled from sysfs, including a new generic entry point for hard page offlining for symmetry too. We use the page isolate facility to prevent re-allocation race. Normally this is only used by memory hotplug. To avoid races with memory allocation I am using lock_system_sleep(). This avoids the situation where memory hotplug is about to isolate a page range and then hwpoison undoes that work. This is a big hammer currently, but the simplest solution currently. When the page is not free or LRU we try to free pages from slab and other caches. The slab freeing is currently quite dumb and does not try to focus on the specific slab cache which might own the page. This could be potentially improved later. Thanks to Fengguang Wu and Haicheng Li for some fixes. [Added fix from Andrew Morton to adapt to new migrate_pages prototype] Signed-off-by: Andi Kleen <ak@linux.intel.com>		2009-12-16 12:20:00 +01:00
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accessibility
acpi	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq	2009-12-11 15:59:23 -08:00
amba
ata	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
atm	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-11 17:12:17 -08:00
auxdisplay
base	HWPOISON: Add soft page offline support	2009-12-16 12:20:00 +01:00
block	Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block	2009-12-15 09:11:28 -08:00
bluetooth	USB: remove the auto_pm flag	2009-12-11 11:55:21 -08:00
cdrom	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2009-12-09 19:03:16 -08:00
char	random.c: use %pU to print UUIDs	2009-12-15 08:53:33 -08:00
clocksource	cs5535: add a generic clock event MFGPT driver	2009-12-15 08:53:28 -08:00
connector
cpufreq	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
cpuidle	drivers/cpuidle: Move dereference after NULL test	2009-12-15 08:53:25 -08:00
crypto	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
dca
dio	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
dma	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
edac	x86, msr: Add support for non-contiguous cpumasks	2009-12-11 10:59:21 -08:00
eisa
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2009-12-11 15:22:27 -08:00
firmware	firmware: only allow EDD on x86	2009-12-15 08:53:34 -08:00
gpio	cs5535: drop the Geode-specific MFGPT/GPIO code	2009-12-15 08:53:28 -08:00
gpu	Merge branch 'drm-nouveau-pony' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-12-11 14:32:49 -08:00
hid	USB: remove the auto_pm flag	2009-12-11 11:55:21 -08:00
hwmon	lis3: scale output values to mg	2009-12-15 08:53:36 -08:00
i2c	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
ide	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
idle
ieee1394	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
ieee802154
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
input	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2009-12-14 12:33:02 -08:00
leds	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
lguest	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
macintosh	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
mca
md	Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm	2009-12-15 09:12:01 -08:00
media	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
memstick
message	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
mfd	mfd: compile fix for twl4030 renaming	2009-12-15 09:33:36 -08:00
misc	cs5535: drop the Geode-specific MFGPT/GPIO code	2009-12-15 08:53:28 -08:00
mmc	mmc: let tmio-mmc use dev_name() with request_irq()	2009-12-15 08:53:35 -08:00
mtd	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
net	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
nubus
of	Merge commit 'origin/master' into next	2009-12-09 17:14:38 +11:00
oprofile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
parisc	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
parport	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k	2009-12-08 08:13:35 -08:00
pci	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
pcmcia	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
platform	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
pnp	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
power	Merge git://git.infradead.org/battery-2.6	2009-12-15 08:59:33 -08:00
pps
ps3
rapidio
regulator	regulator: Add support for twl6030 regulators	2009-12-14 00:26:20 +01:00
rtc	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
s390	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
sbus
scsi	Subject: Re: [PATCH] strstrip incorrectly marked __must_check	2009-12-15 08:53:34 -08:00
serial	ioc3/ioc4: fix error path on driver registration	2009-12-15 08:53:27 -08:00
sfi
sh
sn	ioc3/ioc4: fix error path on driver registration	2009-12-15 08:53:27 -08:00
spi	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
ssb	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-05 15:22:26 -08:00
staging	Staging: batman: fix debug Kconfig option	2009-12-11 15:49:27 -08:00
tc
telephony	Merge branch 'for-next' into for-linus	2009-12-07 18:36:35 +01:00
thermal
uio	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
usb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2009-12-15 08:58:13 -08:00
uwb
video	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
virtio
vlynq
w1
watchdog	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
xen	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	2009-12-11 12:18:16 -08:00
zorro	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
Kconfig	cs5535: add a generic clock event MFGPT driver	2009-12-15 08:53:28 -08:00
Makefile