Michal Hocko 9f123ab544 mm, memory_hotplug: support movable_node for hotpluggable nodes ... movable_node kernel parameter allows making hotpluggable NUMA nodes to put all the hotplugable memory into movable zone which allows more or less reliable memory hotremove. At least this is the case for the NUMA nodes present during the boot (see find_zone_movable_pfns_for_nodes). This is not the case for the memory hotplug, though. echo online > /sys/devices/system/memory/memoryXYZ/state will default to a kernel zone (usually ZONE_NORMAL) unless the particular memblock is already in the movable zone range which is not the case normally when onlining the memory from the udev rule context for a freshly hotadded NUMA node. The only option currently is to have a special udev rule to echo online_movable to all memblocks belonging to such a node which is rather clumsy. Not to mention this is inconsistent as well because what ended up in the movable zone during the boot will end up in a kernel zone after hotremove & hotadd without special care. It would be nice to reuse memblock_is_hotpluggable but the runtime hotplug doesn't have that information available because the boot and hotplug paths are not shared and it would be really non trivial to make them use the same code path because the runtime hotplug doesn't play with the memblock allocator at all. Teach move_pfn_range that MMOP_ONLINE_KEEP can use the movable zone if movable_node is enabled and the range doesn't overlap with the existing normal zone. This should provide a reasonable default onlining strategy. Strictly speaking the semantic is not identical with the boot time initialization because find_zone_movable_pfns_for_nodes covers only the hotplugable range as described by the BIOS/FW. From my experience this is usually a full node though (except for Node0 which is special and never goes away completely). If this turns out to be a problem in the real life we can tweak the code to store hotplug flag into memblocks but let's keep this simple now. Link: http://lkml.kernel.org/r/20170612111227.GI7476@dhcp22.suse.cz Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Reza Arbab <arbab@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Cc: <qiuxishi@huawei.com> Cc: Kani Toshimitsu <toshi.kani@hpe.com> Cc: <slaoub@gmail.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Daniel Kiper <daniel.kiper@oracle.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-07-10 16:32:31 -07:00
..
ABI	DeviceTree for 4.13:	2017-07-07 10:37:54 -07:00
accounting	tools: move accounting tool from Documentation	2016-09-23 13:07:15 -06:00
acpi	This is the bulk of GPIO changes for the v4.13 series:	2017-07-07 12:40:27 -07:00
admin-guide	Merge branch 'akpm' (patches from Andrew)	2017-07-06 22:27:08 -07:00
aoe
arm	ARM: at91: Documentation: add armv7m families	2017-06-02 10:11:09 +02:00
arm64	arm64: Add workaround for Cavium Thunder erratum 30115	2017-06-15 09:45:04 +01:00
auxdisplay	samples: move auxdisplay example code from Documentation	2016-09-23 11:52:32 -06:00
backlight
blackfin	samples: move blackfin gptimers-example from Documentation	2016-10-10 07:12:02 -06:00
block	block: remove bio_clone() and all references.	2017-06-18 12:40:59 -06:00
blockdev	remove the mg_disk driver	2017-04-14 14:00:49 -06:00
bus-devices
cdrom	cdrom: Make device operations read-only	2017-02-14 08:29:56 -07:00
cgroup-v1	mm, vmpressure: pass-through notification support	2017-07-10 16:32:31 -07:00
cma
connector
console
core-api	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
cpu-freq	cpufreq: intel_pstate: Document the current behavior and user interface	2017-05-14 02:06:03 +02:00
cpuidle
cris
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-07-05 12:22:23 -07:00
dev-tools	linux-kselftest-4.13-rc1-update	2017-07-07 14:04:47 -07:00
device-mapper	dm zoned: drive-managed zoned block device target	2017-06-19 11:05:20 -04:00
devicetree	main drm pull for v4.13	2017-07-09 18:48:37 -07:00
dmaengine	dmaengine: Documentation: Fix typo in pxa_dma.txt	2016-11-14 08:14:24 +05:30
doc-guide	kernel-doc: describe the `literal` syntax	2017-05-16 08:44:24 -03:00
driver-api	This is the big bulk of pin control changes for the v4.13 series:	2017-07-06 11:38:59 -07:00
driver-model	pci-v4.13-changes	2017-07-08 15:51:57 -07:00
early-userspace	Documentation: Fix dead URLs to ftp.kernel.org	2017-03-29 15:46:06 -06:00
EDID	drm: use .hword to represent 16-bit numbers	2017-03-30 10:15:19 +02:00
extcon	extcon: Remove porting compatibility of swich class	2017-04-06 10:55:24 +09:00
fault-injection
fb	docs: update old references for DocBook from the documentation	2017-05-16 08:44:19 -03:00
features	powerpc updates for 4.12 part 1.	2017-05-05 11:36:44 -07:00
filesystems	Writeback error handling fixes (pile #2)	2017-07-07 19:38:17 -07:00
firmware_class	firmware: revamp firmware documentation	2017-01-11 09:42:59 +01:00
fmc
fpga	fpga: Add scatterlist based programming	2017-02-10 15:20:44 +01:00
frv	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
gpio	gpio: return NULL from gpiod_get_optional when GPIOLIB is disabled	2017-03-15 11:16:30 +01:00
gpu	main drm pull for v4.13	2017-07-09 18:48:37 -07:00
hid	Documentation: hid: fix path to input bus definitions	2017-03-13 17:15:19 -06:00
hwmon	hwmon: (pmbus) move header file out of I2C realm	2017-06-11 17:08:19 -07:00
i2c	i2c: i801: Add support for Intel Gemini Lake	2017-02-09 17:39:16 +01:00
ia64	selftests: move ia64 tests from Documentation/ia64	2016-09-20 09:58:12 -06:00
ide
iio	iio: Documentation: Correct the path used to create triggers.	2016-10-01 00:49:58 -06:00
infiniband	IB/opa-vnic: Virtual Network Interface Controller (VNIC) documentation	2017-04-20 12:01:06 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2017-05-26 16:45:13 -07:00
ioctl	scsi: cxlflash: Introduce host ioctl support	2017-06-26 15:01:11 -04:00
isdn	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
kbuild	Kbuild thin archives updates for v4.13	2017-07-07 15:11:12 -07:00
kdump	Documentation: kdump: describe arm64 port	2017-04-05 18:32:32 +01:00
kernel-hacking	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
laptops	platform/x86: thinkpad_acpi: Add support for X1 Yoga (2016) Tablet Mode	2016-12-13 09:29:06 -08:00
leds	Documentaion: leds: leds-lp55xx.txt: Fix typos	2017-03-17 13:06:14 -06:00
lightnvm	lightnvm: physical block device (pblk) target	2017-04-16 10:06:33 -06:00
livepatch	livepatch: allow removal of a disabled patch	2017-03-08 09:38:43 +01:00
locking	locking/ww_mutex/Documentation: Update the design document	2017-01-14 11:14:55 +01:00
m68k	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
md	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-05-03 10:05:38 -07:00
media	media updates for v4.13-rc1	2017-07-06 11:15:19 -07:00
memory-devices
metag
mic	samples: move mic/mpssd example code from Documentation	2016-09-20 12:38:48 -06:00
mips
misc-devices	Documentation: misc-devices: Add Documentation for pci-endpoint-test driver	2017-04-28 10:23:19 -05:00
mmc	MMC core:	2017-05-02 17:34:32 -07:00
mn10300
mtd	spi-nor: Add support for Intel SPI serial flash controller	2017-01-03 17:33:36 +00:00
namespaces
netlabel
networking	doc: SKB_GSO_[IPIP|SIT] have been replaced	2017-07-08 11:25:56 +01:00
nfc
nios2
nvdimm
nvmem
parisc
PCI	docs: update old references for DocBook from the documentation	2017-05-16 08:44:19 -03:00
pcmcia	tools: move pcmcia crc32hash tool from Documentation	2016-09-23 13:07:27 -06:00
perf	perf: qcom: Add L3 cache PMU driver	2017-04-03 18:53:50 +01:00
phy
platform
power	power supply and reset changes for the v4.13 series	2017-07-04 14:25:14 -07:00
powerpc	powerpc updates for 4.13	2017-07-07 13:55:45 -07:00
pps	Doc: clarify source of jitter in USB1.1, and USB2.0	2017-01-04 14:40:52 -07:00
process	Kbuild thin archives updates for v4.13	2017-07-07 15:11:12 -07:00
pti
ptp	selftests: move ptp tests from Documentation/ptp	2016-09-20 09:54:38 -06:00
rapidio	rapidio/documentation/mport_cdev: add missing parameter description	2016-09-01 17:52:02 -07:00
RCU	rcu: Remove debugfs tracing	2017-06-08 18:52:43 -07:00
s390	docs: add documentation for vfio-ccw	2017-03-31 12:55:11 +02:00
scheduler	sched/deadline: Add documentation about GRUB reclaiming	2017-06-08 10:31:56 +02:00
scsi	scsi: make asynchronous aborts mandatory	2017-04-06 13:07:33 -04:00
security	docs: Fix some formatting issues in request-key.rst	2017-05-18 10:46:25 -06:00
serial	tty: n_gsm: do not send/receive in ldisc close path	2017-06-03 18:48:52 +09:00
sh	docs-rst: convert sh book to ReST	2017-05-16 08:44:18 -03:00
sound	sound updates for 4.13-rc1	2017-07-06 10:56:51 -07:00
sparc	Documentation/sparc: Steps for sending break on sunhv console	2017-02-23 08:27:25 -08:00
sphinx	Docs: clean up some DocBook loose ends	2017-06-23 14:17:38 -06:00
sphinx-static	This is the documentation update pull for the 4.9 merge window.	2016-10-04 13:54:07 -07:00
spi	spi: Document SPI slave controller support	2017-05-26 13:11:00 +01:00
sysctl	Replace 2 jiffies with sysctl netdev_budget_usecs to enable softirq tuning	2017-04-21 13:22:34 -04:00
target	Documentation/target: add an example script to configure an iSCSI target	2017-05-01 22:21:35 -07:00
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2017-05-12 11:58:45 -07:00
timers	rcu: Eliminate NOCBs CPU-state Kconfig options	2017-06-08 18:52:43 -07:00
trace	Char/Misc patches for 4.13-rc1	2017-07-03 20:55:59 -07:00
translations	doc/kokr/howto: Only send regression fixes after -rc1	2017-06-22 10:25:22 -06:00
usb	usb: gadget: add f_uac1 variant based on a new u_audio api	2017-06-19 09:22:47 +03:00
userspace-api	doc: ReSTify no_new_privs.txt	2017-05-18 10:30:09 -06:00
virtual	kvm: x86: mmu: allow A/D bits to be disabled in an mmu	2017-07-03 11:19:54 +02:00
vm	ksm: introduce ksm_max_page_sharing per page deduplication limit	2017-07-06 16:24:31 -07:00
w1	w1: add documentation for w1_ds2438	2017-03-17 15:10:49 +09:00
watchdog	iTCO_wdt: all versions count down twice	2017-05-19 10:42:11 +02:00
wimax
x86	x86/mce: Update bootlog description to reflect behavior on AMD	2017-06-14 07:32:10 +02:00
xtensa	of: update ePAPR references to point to Devicetree Specification	2017-06-22 11:22:06 -05:00
.gitignore
00-INDEX	linux-kselftest-4.13-rc1-update	2017-07-07 14:04:47 -07:00
bcache.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt	mm/oom_kill: count global and memory cgroup oom kills	2017-07-06 16:24:35 -07:00
Changes	docs: add back 'Documentation/Changes' file (as symlink)	2016-12-14 16:30:12 -08:00
circular-buffers.txt	Documentation: circular-buffers: use READ_ONCE()	2016-11-16 16:17:45 -07:00
clk.txt
CodingStyle	doc: re-add CodingStyle and SubmittingPatches	2016-10-24 08:12:35 -02:00
conf.py	Docs: Fix breakage with Sphinx 1.5 and upper	2017-06-23 13:45:37 -06:00
cpu-load.txt
cputopology.txt	docs: Fix a couple typos	2017-04-27 15:54:39 -06:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt	docs: Fix a couple typos	2017-04-27 15:54:39 -06:00
dell_rbu.txt
digsig.txt
DMA-API-HOWTO.txt	dma-mapping: remove DMA_ERROR_CODE	2017-06-28 06:54:37 -07:00
DMA-API.txt	Documentation: DMA API: fix a typo in a function name	2017-06-05 15:57:02 -06:00
DMA-attributes.txt	common: DMA-mapping: add DMA_ATTR_PRIVILEGED attribute	2017-01-19 15:56:19 +00:00
DMA-ISA-LPC.txt	Documentation: DMA-ISA-LPC.txt	2017-02-12 15:20:07 -07:00
docutils.conf
dontdiff	GCC plugin updates:	2017-07-05 11:46:59 -07:00
efi-stub.txt
eisa.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt	gcc-plugins: update architecture list in documentation	2017-03-21 22:20:05 +11:00
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst	Make the main documentation title less Geocities	2017-06-23 14:02:27 -06:00
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	Documentation: Fix a typo in IPMI.txt.	2017-01-05 15:01:54 -06:00
IRQ-affinity.txt
IRQ-domain.txt	Documentation: Update IRQ-domain.txt to document irq_domain_mapping	2017-05-22 22:29:45 +02:00
IRQ.txt
irqflags-tracing.txt
isa.txt
isapnp.txt
kernel-doc-nano-HOWTO.txt	docs: update old references for DocBook from the documentation	2017-05-16 08:44:19 -03:00
kernel-per-CPU-kthreads.txt	rcu: Eliminate NOCBs CPU-state Kconfig options	2017-06-08 18:52:43 -07:00
kobject.txt
kprobes.txt	Documentation: kprobes: Document jprobes stack copying limitations	2016-08-15 10:19:11 -06:00
kref.txt	Revert "kref: double kref_put() in my_data_handler()"	2017-04-08 18:38:10 +02:00
ldm.txt
lockup-watchdogs.txt	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
logo.gif
logo.txt
lsm.txt	docs-rst: convert lsm from DocBook to ReST	2017-05-16 08:44:19 -03:00
lzo.txt
mailbox.txt
Makefile	docs: remove DocBook from the building system	2017-05-16 08:44:19 -03:00
memory-barriers.txt	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
memory-hotplug.txt	mm, memory_hotplug: support movable_node for hotpluggable nodes	2017-07-10 16:32:31 -07:00
men-chameleon-bus.txt
nommu-mmap.txt
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt	Documentation: phy: Fix repetition of word 'the'	2017-03-09 00:33:15 -07:00
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	vsprintf: Add %p extension "%pOF" for device tree	2017-06-27 12:36:40 -05:00
pwm.txt
rbtree.txt
remoteproc.txt	remoteproc: Split driver and consumer dereferencing	2016-10-02 22:50:21 -07:00
rfkill.txt	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
sgi-ioc4.txt
siphash.txt	siphash: implement HalfSipHash1-3 for hash tables	2017-01-09 13:58:57 -05:00
SM501.txt
smsc_ece1099.txt
static-keys.txt	docs: Fix a couple typos	2017-04-27 15:54:39 -06:00
SubmittingPatches	doc: re-add CodingStyle and SubmittingPatches	2016-10-24 08:12:35 -02:00
svga.txt
switchtec.txt	switchtec: Add IOCTLs to the Switchtec driver	2017-04-12 12:23:37 -05:00
sync_file.txt	sync_file.txt: standardize document format	2017-05-24 13:01:27 -03:00
tee.txt	Documentation: tee subsystem and op-tee driver	2017-03-10 14:51:57 +01:00
this_cpu_ops.txt
unaligned-memory-access.txt	Documentation/unaligned-memory-access.txt: fix incorrect comparison operator	2016-12-27 13:08:42 -07:00
vfio-mediated-device.txt	docs: Fix a spelling error in vfio-mediated-device.txt	2017-04-27 15:54:39 -06:00
vfio.txt
video-output.txt
xillybus.txt
xz.txt
zorro.txt	docs: Fix a couple typos	2017-04-27 15:54:39 -06:00