Lai Jiangshan d9713679db memory_hotplug: fix possible incorrect node_states[N_NORMAL_MEMORY] ... Currently memory_hotplug only manages the node_states[N_HIGH_MEMORY], it forgets to manage node_states[N_NORMAL_MEMORY]. This may cause node_states[N_NORMAL_MEMORY] to become incorrect. Example, if a node is empty before online, and we online a memory which is in ZONE_NORMAL. And after online, node_states[N_HIGH_MEMORY] is correct, but node_states[N_NORMAL_MEMORY] is incorrect, the online code doesn't set the new online node to node_states[N_NORMAL_MEMORY]. The same thing will happen when offlining (the offline code doesn't clear the node from node_states[N_NORMAL_MEMORY] when needed). Some memory managment code depends node_states[N_NORMAL_MEMORY], so we have to fix up the node_states[N_NORMAL_MEMORY]. We add node_states_check_changes_online() and node_states_check_changes_offline() to detect whether node_states[N_HIGH_MEMORY] and node_states[N_NORMAL_MEMORY] are changed while hotpluging. Also add @status_change_nid_normal to struct memory_notify, thus the memory hotplug callbacks know whether the node_states[N_NORMAL_MEMORY] are changed. (We can add a @flags and reuse @status_change_nid instead of introducing @status_change_nid_normal, but it will add much more complexity in memory hotplug callback in every subsystem. So introducing @status_change_nid_normal is better and it doesn't change the sematics of @status_change_nid) Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Rob Landley <rob@landley.net> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Mel Gorman <mgorman@suse.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-12-11 17:22:23 -08:00
..
ABI	SCSI misc on 20121012	2012-10-13 10:57:01 +09:00
accounting	doc: getdelays.c: remember to close() socket on error in create_nl_socket()	2012-09-01 09:58:59 -07:00
acpi
aoe	aoe: update documentation to better reflect aoe-plus-udev usage	2012-10-06 03:05:30 +09:00
arm	Merge branch 'fixes' into for-linus	2012-10-11 10:55:04 +01:00
arm64	arm64: Move PCI_IOBASE closer to MODULES_VADDR	2012-10-23 15:30:51 +01:00
auxdisplay
backlight
blackfin
block	block: Kill bi_destructor	2012-09-09 10:35:39 +02:00
blockdev
cdrom
cgroups	memcg: oom: fix totalpages calculation for memory.swappiness==0	2012-11-16 14:33:04 -08:00
connector	connector: Move cn_test.c away from NLMSG_PUT().	2012-06-26 21:19:02 -07:00
console
cpu-freq	acpi-cpufreq: Add support for disabling dynamic overclocking	2012-09-09 22:05:12 +02:00
cpuidle	Honor state disabling in the cpuidle ladder governor	2012-09-04 01:35:44 +02:00
cris
crypto	KEYS: Document asymmetric key type	2012-10-08 13:50:12 +10:30
development-process
device-mapper	DM RAID: Add rebuild capability for RAID10	2012-10-11 13:40:24 +11:00
devicetree	Device tree changes for v3.8	2012-12-11 11:30:41 -08:00
DocBook	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-10-18 16:10:42 -07:00
driver-model	pwm: add devm_pwm_get() and devm_pwm_put()	2012-09-10 17:05:45 +02:00
dvb	get_dvb_firmware: fix download site for tda10046 firmware	2012-09-28 16:16:00 -03:00
early-userspace
EDID
extcon
fault-injection	fault-injection: add tool to run command with failslab or fail_page_alloc	2012-07-30 17:25:22 -07:00
fb
filesystems	mm, oom: reintroduce /proc/pid/oom_adj	2012-11-16 10:15:35 -08:00
firmware_class	firmware loader: document kernel direct loading	2012-10-25 11:53:36 -07:00
frv
hid	HID: sensors: add documentation	2012-09-06 19:11:04 +01:00
hwmon	hwmon: DA9055 HWMON driver	2012-12-05 10:55:55 -08:00
i2c	i2c-mux-gpio: Update documentation	2012-10-05 22:23:54 +02:00
i2o
ia64	doc: aliasing-test: close fd on write error	2012-09-01 09:57:10 -07:00
ide
infiniband	IB/ipoib: Add rtnl_link_ops support	2012-09-20 16:49:17 -04:00
input	Input: add driver for FT5x06 based EDT displays	2012-07-24 23:55:03 -07:00
ioctl	ioctl-number.txt: Remove legacy private ioctl's from media drivers	2012-08-14 00:07:39 -03:00
isdn
ja_JP
kbuild	kbuild: centralize .dts->.dtb rule	2012-11-30 10:52:19 -06:00
kdump	kexec: update URL of kexec homepage	2012-07-18 18:35:57 -07:00
ko_KR
laptops	Documentation: fix the VM knobs descritpion WRT pdflush	2012-08-04 12:15:09 +04:00
leds	leds-lp5523: add channel name in the platform data	2012-09-11 18:32:41 +08:00
m68k
make
memory-devices
mips
misc-devices	lis3lv02d: Add STMicroelectronics lis331dlh digital accelerometer	2012-09-05 13:44:04 -07:00
mmc	mmc: core: Extend sysfs to ext_csd parameters for RPMB support	2012-12-06 13:54:48 -05:00
mn10300
mtd
namespaces
netlabel
networking	vxlan: fix command usage in its doc	2012-11-23 14:03:04 -05:00
nfc	NFC: Error management documentation	2012-07-09 16:42:11 -04:00
parisc
PCI
pcmcia
power	1. New drivers:	2012-10-07 17:29:24 +09:00
powerpc	Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags"	2012-05-22 14:37:24 +10:00
pps
prctl	security: Minor improvements to no_new_privs documentation	2012-07-08 00:25:48 +10:00
pti
ptp
rapidio
RCU	Merge branches 'bigrt.2012.09.23a', 'doctorture.2012.09.23a', 'fixes.2012.09.23a', 'hotplug.2012.09.23a' and 'idlechop.2012.09.23a' into HEAD	2012-09-24 20:02:22 -07:00
s390
scheduler	sched: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW	2012-09-13 16:52:04 +02:00
scsi	[SCSI] megaraid_sas: Version, Changelog, Copyright update	2012-10-09 11:21:48 +01:00
security	Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux	2012-10-14 13:39:34 -07:00
serial	firmware: remove computone driver firmware and documentation	2012-08-16 12:31:18 -07:00
sh
sound	Merge branch 'topic/tlv-chmap' into for-next	2012-09-15 16:32:31 +02:00
spi	spi: Updates for v3.7	2012-10-02 17:26:42 -07:00
sysctl	coredump: add support for %d=__get_dumpable() in core name	2012-10-06 03:05:15 +09:00
target	target: Simplify fabric sense data length handling	2012-09-17 17:12:58 -07:00
telephony
thermal	hwmon: exynos4: move thermal sensor driver to driver/thermal directory	2012-09-24 14:44:38 +08:00
timers
trace	doc: fix old config name of kprobetrace	2012-09-27 12:11:29 +02:00
usb	usb: add decriptor of persist fail for some morph usb devices	2012-08-10 12:06:39 -07:00
vDSO
video4linux	[media] media: v4l2-ctrl: add a helper function to add standard control with driver specific menu	2012-10-05 21:48:03 -03:00
virtual	Merge branch 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2012-10-10 11:15:20 +09:00
vm	mm: remove vma arg from page_evictable	2012-10-09 16:22:55 +09:00
w1	1-Wire: Add support for the maxim ds1825 temperature sensor	2012-08-16 12:33:59 -07:00
watchdog	watchdog: fix watchdog-test.c build warning	2012-08-29 17:12:58 +02:00
wimax
x86	x86/mce: Provide boot argument to honour bios-set CMCI threshold	2012-09-27 10:08:00 -07:00
zh_CN	Documentation:Chinese translation of Documentation/arm64/memory.txt	2012-10-25 11:54:06 -07:00
.gitignore
00-INDEX	Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-10-24 04:07:02 +03:00
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt
coccinelle.txt
CodingStyle	CodingStyle: add networking specific block comment style	2012-10-06 03:04:59 +09:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	Doc: document max raw dev number	2012-06-03 12:05:50 +02:00
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt	common: DMA-mapping: add DMA_ATTR_SKIP_CPU_SYNC attribute	2012-07-30 12:25:47 +02:00
dma-buf-sharing.txt	dma-buf: add initial vmap documentation	2012-05-25 12:51:11 +05:30
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-10-01 09:06:36 -07:00
dynamic-debug-howto.txt
edac.txt	Merge branch 'devel'	2012-07-29 21:11:05 -03:00
eisa.txt	MCA: delete all remaining traces of microchannel bus support.	2012-05-17 19:06:13 -04:00
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt	gpiolib: provide provision to register pin ranges	2012-11-11 19:06:00 +01:00
highuid.txt
HOWTO
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt	Documentation/initrd.txt: Change the location of util-linux	2012-05-25 16:18:34 +02:00
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	IPMI: Remove SMBus driver info from the docs	2012-10-16 18:07:12 -07:00
IRQ-affinity.txt
IRQ-domain.txt	irqdomain: update documentation	2012-12-05 23:52:10 +00:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux	2012-10-14 13:39:34 -07:00
kmemcheck.txt
kmemleak.txt
kobject.txt	Documentation: Fix "struct kobj_type" to include newer members.	2012-09-04 16:06:34 -07:00
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
lockup-watchdogs.txt
logo.gif
logo.txt
magic-number.txt
Makefile	mei: move doc files Documentation/misc-devices/mei	2012-05-09 13:59:09 -07:00
ManagementStyle	Documentation: ManagementStyle: fixed typo	2012-06-28 12:03:15 +02:00
md.txt
media-framework.txt	[media] media: Add link_validate() op to check links to the sink pad	2012-05-14 08:44:11 -03:00
memory-barriers.txt
memory-hotplug.txt	memory_hotplug: fix possible incorrect node_states[N_NORMAL_MEMORY]	2012-12-11 17:22:23 -08:00
mono.txt
mutex-design.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt	percpu-rw-semaphore: fix documentation typos	2012-09-26 19:56:15 +02:00
pi-futex.txt
pinctrl.txt	gpiolib: provide provision to register pin ranges	2012-11-11 19:06:00 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt	lib/vsprintf: update documentation to cover all of %p[Mm][FR]	2012-10-06 03:04:50 +09:00
pwm.txt	pwm: add devm_pwm_get() and devm_pwm_put()	2012-09-10 17:05:45 +02:00
ramoops.txt	pstore/ftrace: Convert to its own enable/disable debugfs knob	2012-09-06 22:16:58 -07:00
rbtree.txt	rbtree: move augmented rbtree functionality to rbtree_augmented.h	2012-10-09 16:22:40 +09:00
remoteproc.txt	remoteproc: add rproc_report_crash function to notify rproc crashes	2012-09-18 12:53:22 +03:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt	rtc-proc: permit the /proc/driver/rtc device to use other devices	2012-10-06 03:05:01 +09:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
smsc_ece1099.txt	mfd: smsc: Add support for smsc gpio io/keypad driver	2012-10-01 15:27:48 +02:00
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable: Allow merging of backports for serious user-visible performance issues	2012-06-25 12:11:58 -07:00
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches	Documentation/SubmittingPatches: suggested the use of scripts/get_maintainer.pl	2012-05-25 16:18:30 +02:00
svga.txt
sysfs-rules.txt
sysrq.txt	sparc64: Add global PMU register dumping via sysrq.	2012-10-16 09:34:01 -07:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt	vfio: Trivial Documentation correction	2012-09-21 10:48:03 -06:00
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt	VME: Move API documentation to Documentation folder	2012-05-08 16:01:34 -07:00
volatile-considered-harmful.txt
workqueue.txt	workqueue: reimplement WQ_HIGHPRI using a separate worker_pool	2012-07-13 22:24:45 -07:00
xz.txt
zorro.txt