Michal Hocko d6cb41cc44 mm, hugetlb: remove hugepages_treat_as_movable sysctl ... hugepages_treat_as_movable has been introduced by 396faf0303 ("Allow huge page allocations to use GFP_HIGH_MOVABLE") to allow hugetlb allocations from ZONE_MOVABLE even when hugetlb pages were not migrateable. The purpose of the movable zone was different at the time. It aimed at reducing memory fragmentation and hugetlb pages being long lived and large werre not contributing to the fragmentation so it was acceptable to use the zone back then. Things have changed though and the primary purpose of the zone became migratability guarantee. If we allow non migrateable hugetlb pages to be in ZONE_MOVABLE memory hotplug might fail to offline the memory. Remove the knob and only rely on hugepage_migration_supported to allow movable zones. Mel said: : Primarily it was aimed at allowing the hugetlb pool to safely shrink with : the ability to grow it again. The use case was for batched jobs, some of : which needed huge pages and others that did not but didn't want the memory : useless pinned in the huge pages pool. : : I suspect that more users rely on THP than hugetlbfs for flexible use of : huge pages with fallback options so I think that removing the option : should be ok. Link: http://lkml.kernel.org/r/20171003072619.8654-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Alexandru Moise <00moses.alexander00@gmail.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Alexandru Moise <00moses.alexander00@gmail.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2018-01-31 17:18:37 -08:00
..
ABI	f2fs-for-4.16-rc1	2018-01-30 19:07:32 -08:00
accounting
acpi	ACPI / LPIT: Add Low Power Idle Table (LPIT) support	2017-10-11 15:38:10 +02:00
admin-guide	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-01-30 10:15:30 -08:00
aoe
arm
arm64	arm64 updates for 4.16:	2018-01-30 13:57:43 -08:00
auxdisplay
backlight
blackfin
block	block, bfq: move debug blkio stats behind CONFIG_DEBUG_BLK_CGROUP	2017-11-14 20:13:33 -07:00
blockdev
bpf	bpf: document answers to common questions about BPF	2017-11-01 21:01:47 +09:00
bus-devices
cdrom	documentation: Update ide-cd documentation to reflect CONFIG_BLK_DEV_HD_IDE removal	2017-10-12 11:25:31 -06:00
cgroup-v1	Documentation: Fix 'file_mapped' -> 'mapped_file'	2018-01-30 09:52:11 -08:00
cma
connector
console
core-api	genericirq.rst: Remove :c:func:... in code blocks	2017-12-02 08:41:46 -07:00
cpu-freq	cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE	2017-11-08 23:41:25 +01:00
cpuidle
cris
crypto	crypto: doc - adapt api sample to use async. op wait	2017-11-03 22:11:23 +08:00
dev-tools	Kbuild misc updates for v4.15	2017-11-17 17:51:33 -08:00
device-mapper	dm cache: Documentation: update default migration_throttling value	2018-01-30 16:55:47 -05:00
devicetree	DMAengine updates for v4.16-rc1	2018-01-31 11:52:20 -08:00
doc-guide	Documentation: fix ref to sphinx/kerneldoc.py	2017-10-19 12:57:10 -06:00
driver-api	DMAengine updates for v4.16-rc1	2018-01-31 11:52:20 -08:00
driver-model	serdev: Introduce devm_serdev_device_open()	2018-01-08 10:08:34 +00:00
early-userspace
EDID
extcon
fault-injection	cpu/hotplug: Get rid of CPU hotplug notifier leftovers	2017-11-13 10:03:53 +01:00
fb	documentation: fb: update list of available compiled-in fonts	2017-11-08 03:39:52 -07:00
features	Xtensa improvements for v4.16:	2018-01-29 16:40:28 -08:00
filesystems	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-01-31 09:25:20 -08:00
firmware_class
fmc
fpga
frv
gpio	Merge branch 'gpio-irqchip-rework' of /home/linus/linux-gpio into devel	2017-11-09 09:38:42 +01:00
gpu	docs: fix, intel_guc_loader.c has been moved to intel_guc_fw.c	2018-01-02 17:21:51 +02:00
hid	Documentation: fix input related doc refs	2017-10-12 11:14:06 -06:00
hwmon	hwmon: (pmbus/max31785) Add dual tachometer support	2018-01-02 15:05:34 -08:00
i2c	i2c: i801: Add support for Intel Cedar Fork	2017-10-05 14:44:56 +02:00
ia64	kbuild: /bin/pwd -> pwd	2017-11-18 11:32:27 +09:00
ide
iio
infiniband
input	Documentation: fix input related doc refs	2017-10-12 11:14:06 -06:00
ioctl
isdn
kbuild	kconfig: fix relational operators for bool and tristate symbols	2018-01-06 02:31:23 +09:00
kdump
kernel-hacking
laptops	Documentation: fix admin-guide doc refs	2017-10-12 11:13:28 -06:00
leds	Documentation: leds: Update 00-INDEX file	2017-10-23 20:17:03 +02:00
lightnvm
livepatch	livepatch: add (un)patch callbacks	2017-10-19 10:08:56 +02:00
locking	Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2018-01-03 14:14:18 +01:00
m68k
md	raid5-ppl: PPL support for disks with write-back cache enabled	2018-01-15 14:29:42 -08:00
media	media: docs: add documentation for frontend attach info	2017-11-30 04:19:04 -05:00
memory-devices
metag
mic
mips
misc-devices
mmc
mn10300
mtd	mtd: spi-nor: add an API to restore the status of SPI flash chip	2017-12-13 00:36:00 +01:00
namespaces
netlabel
networking	doc: clarification about setting SO_ZEROCOPY	2018-01-10 15:01:49 -05:00
nfc
nios2
nvdimm
nvmem
openrisc	Documentation: openrisc: Updates to README	2017-10-30 21:37:53 +09:00
parisc
PCI
pcmcia
perf	perf: ARM DynamIQ Shared Unit PMU support	2018-01-02 16:43:12 +00:00
phy
platform
power	regulator: Changes for v4.16	2018-01-29 11:32:44 -08:00
powerpc
pps
process	Merge branch 'perf/urgent' into perf/core, to pick up fixes and to refresh to v4.15	2017-12-06 23:37:06 +01:00
pti
ptp
rapidio
RCU	Merge branches 'cond_resched.2017.12.04a', 'dyntick.2017.11.28a', 'fixes.2017.12.11a', 'srbd.2017.12.05a' and 'torture.2017.12.11a' into HEAD	2017-12-11 09:21:58 -08:00
s390
scheduler	sched/deadline: Fix the description of runtime accounting in the documentation	2017-11-16 09:00:35 +01:00
scsi	scsi: documentation: Fix case of 'scsi_device' struct mention(s)	2017-12-02 08:43:43 -07:00
security	KEYS: fix in-kernel documentation for keyctl_read()	2017-11-15 16:38:44 +00:00
serial
sh
sound	sound updates for 4.15-rc1	2017-11-14 18:01:46 -08:00
sparc
sphinx
sphinx-static
spi
sysctl	mm, hugetlb: remove hugepages_treat_as_movable sysctl	2018-01-31 17:18:37 -08:00
target
thermal	cpu_cooling: Remove static-power related documentation	2018-01-03 13:11:48 +01:00
timers
trace	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
translations	A few late-arriving docs updates that have no real reason to wait. There's	2017-11-23 21:01:32 -10:00
usb	Documentation: usb: fix typo in UVC gadgetfs config command	2018-01-11 18:39:52 +01:00
userspace-api
virtual	KVM: PPC: Book3S: Provide information about hardware/firmware CVE workarounds	2018-01-19 15:17:01 +11:00
vm	mm: show total hugetlb memory consumption in /proc/meminfo	2018-01-31 17:18:36 -08:00
w1	add w1_ds28e17 driver for the DS28E17 Onewire to I2C master bridge	2017-10-04 10:29:22 +02:00
watchdog	Documentation: fix selftests related file refs	2017-10-19 12:58:21 -06:00
wimax
x86	Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-01-29 17:48:22 -08:00
xtensa	xtensa: add support for KASAN	2017-12-16 22:37:12 -08:00
.gitignore
00-INDEX
atomic_bitops.txt
atomic_t.txt
bcache.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt	cgroup, docs: document the root cgroup behavior of cpu and io controllers	2018-01-16 08:07:09 -08:00
Changes
circular-buffers.txt	doc: De-emphasize smp_read_barrier_depends	2017-12-05 11:57:53 -08:00
clearing-warn-once.txt	kernel debug: support resetting WARN*_ONCE	2017-11-17 16:10:00 -08:00
clk.txt
CodingStyle
conf.py
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
DMA-ISA-LPC.txt
docutils.conf
dontdiff
efi-stub.txt
eisa.txt
errseq.rst
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt	irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG	2018-01-24 12:32:58 +01:00
IRQ.txt
irqflags-tracing.txt
isa.txt
isapnp.txt
kernel-doc-nano-HOWTO.txt
kernel-per-CPU-kthreads.txt
kobject.txt
kprobes.txt	kprobes/docs: Remove jprobes related documents	2017-10-20 11:02:55 +02:00
kref.txt
ldm.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lsm.txt
lzo.txt
mailbox.txt
Makefile	Documentation: add script and build target to check for broken file references	2017-10-12 11:07:42 -06:00
memory-barriers.txt	doc: De-emphasize smp_read_barrier_depends	2017-12-05 11:57:53 -08:00
memory-hotplug.txt
men-chameleon-bus.txt
nommu-mmap.txt
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt	Documentation: fix locking rt-mutex doc refs	2017-10-19 12:56:44 -06:00
pnp.txt
preempt-locking.txt
printk-formats.txt	vsprintf: add printk specifier %px	2017-11-29 12:13:14 +11:00
pwm.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
sgi-ioc4.txt
siphash.txt
SM501.txt
smsc_ece1099.txt
static-keys.txt
SubmittingPatches
svga.txt	documentation/svga.txt: update outdated file	2017-11-20 10:45:50 -07:00
switchtec.txt	NTB: switchtec_ntb: Update switchtec documentation with notes for NTB	2017-11-18 20:37:13 -05:00
sync_file.txt
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
vfio-mediated-device.txt
vfio.txt
video-output.txt
xillybus.txt
xz.txt
zorro.txt