Huang Ying 61b639723b mm, swap: use page-cluster as max window of VMA based swap readahead ... When the VMA based swap readahead was introduced, a new knob /sys/kernel/mm/swap/vma_ra_max_order was added as the max window of VMA swap readahead. This is to make it possible to use different max window for VMA based readahead and original physical readahead. But Minchan Kim pointed out that this will cause a regression because setting page-cluster sysctl to zero cannot disable swap readahead with the change. To fix the regression, the page-cluster sysctl is used as the max window of both the VMA based swap readahead and original physical swap readahead. If more fine grained control is needed in the future, more knobs can be added as the subordinate knobs of the page-cluster sysctl. The vma_ra_max_order knob is deleted. Because the knob was introduced in v4.14-rc1, and this patch is targeting being merged before v4.14 releasing, there should be no existing users of this newly added ABI. Link: http://lkml.kernel.org/r/20171011070847.16003-1-ying.huang@intel.com Fixes: ec560175c0 ("mm, swap: VMA based swap readahead") Signed-off-by: "Huang, Ying" <ying.huang@intel.com> Reported-by: Minchan Kim <minchan@kernel.org> Acked-by: Minchan Kim <minchan@kernel.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Rik van Riel <riel@redhat.com> Cc: Shaohua Li <shli@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Tim Chen <tim.c.chen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-10-13 16:18:33 -07:00
..
ABI	mm, swap: use page-cluster as max window of VMA based swap readahead	2017-10-13 16:18:33 -07:00
accounting
acpi	This is the bulk of GPIO changes for the v4.13 series:	2017-07-07 12:40:27 -07:00
admin-guide	selinux/stable-4.14 PR 20170831	2017-09-12 13:21:00 -07:00
aoe
arm	Documentation: arm: Replace use of virt_to_phys with __pa_symbol	2017-07-17 13:43:58 -06:00
arm64	arm64: Expose DC CVAP to userspace	2017-08-09 11:00:35 +01:00
auxdisplay
backlight
blackfin
block	doc, block, bfq: better describe how to properly configure bfq	2017-08-31 13:55:26 -06:00
blockdev	SCSI misc on 20170907	2017-09-07 21:11:05 -07:00
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	Documentation: core-api: minor workqueue.rst cleanups	2017-09-18 17:29:27 -07:00
cpu-freq	cpufreq: docs: Drop intel-pstate.txt from index.txt	2017-09-28 02:08:43 +02:00
cpuidle
cris
crypto	KEYS: Add documentation for asymmetric keyring restrictions	2017-07-14 11:01:38 +10:00
dev-tools	docs: disable KASLR when debugging kernel	2017-07-17 14:49:01 -06:00
device-mapper	dm raid: fix incorrect status output at the end of a "recover" process	2017-10-05 16:21:30 -04:00
devicetree	MMC core:	2017-10-07 10:03:03 -07:00
dmaengine	Merge branch 'topic/dmatest' into for-linus	2017-09-06 21:55:10 +05:30
doc-guide	sphinx.rst: Allow Sphinx version 1.6 at the docs	2017-08-26 15:50:27 -06:00
driver-api	PM: docs: Drop an excess character from devices.rst	2017-09-19 22:57:38 +02:00
driver-model	driver core: remove DRIVER_ATTR	2017-09-19 09:20:33 +02:00
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	fault-inject: add /proc/<pid>/fail-nth	2017-07-14 15:05:13 -07:00
fb	fbcon: remove restriction on margin color	2017-09-04 16:00:49 +02:00
features	docs/features: parisc implements tracehook	2017-08-07 14:18:40 -06:00
filesystems	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2017-10-06 08:52:53 -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	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2017-09-07 13:39:21 -07:00
gpu	Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-next	2017-08-22 10:03:07 +10:00
hid	Documentation: hid: fix path to input bus definitions	2017-03-13 17:15:19 -06:00
hwmon	hwmon: (pmbus/lm25066) Add support for TI LM5066I	2017-08-30 06:31:13 -07:00
i2c	i2c: i801: Add support for Intel Cedar Fork	2017-10-05 14:44:56 +02:00
ia64
ide
iio	iio: adc: New driver for Cirrus Logic EP93xx ADC	2017-07-25 19:56:23 +01:00
infiniband	Documentation: Hardware tag matching	2017-08-29 08:30:21 -04:00
input	Documentation:input: fix typo	2017-08-30 15:18:24 -06:00
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: Update example for ccflags-y usage	2017-08-07 14:24:28 -06:00
kdump	kexec/kdump: minor Documentation updates for arm64 and Image	2017-07-12 16:26:00 -07:00
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: Fix warning about deprecated hwmon_device_register	2017-08-18 15:57:24 -07:00
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	Merge branch 'linus' into locking/core, to fix up conflicts	2017-09-04 11:01:18 +02:00
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: add qcom_camss.rst to v4l-drivers rst file	2017-09-05 07:28:25 -04:00
memory-devices
metag
mic
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: Fix typo "8023.ad" in bonding documentation	2017-10-07 23:19:13 +01:00
nfc
nios2
nvdimm
nvmem	NVMEM documentation fix: A minor typo	2017-08-24 13:31:58 -06:00
parisc
PCI	docs: update old references for DocBook from the documentation	2017-05-16 08:44:19 -03:00
pcmcia
perf	perf: qcom: Add L3 cache PMU driver	2017-04-03 18:53:50 +01:00
phy
platform
power	Merge branch 'pm-sleep'	2017-09-04 00:06:02 +02:00
powerpc	powerpc updates for 4.13	2017-07-07 13:55:45 -07:00
pps	drivers/pps: aesthetic tweaks to PPS-related content	2017-09-08 18:26:51 -07:00
process	docs: process: drop git snapshots from applying-patches.rst	2017-08-30 15:25:30 -06:00
pti
ptp
rapidio
RCU	doc: Set down RCU's scheduling-clock-interrupt needs	2017-08-17 07:31:14 -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: ReSTify table of contents in core.rst	2017-08-30 15:27:58 -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	Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale	2017-08-31 13:36:28 -06:00
sphinx-static	docs RTD theme: code-block with line nos - lines and line numbers don't line up.	2017-07-17 13:48:45 -06:00
spi	spi: Document SPI slave controller support	2017-05-26 13:11:00 +01:00
sysctl	Major additions:	2017-09-22 16:16:41 -10:00
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	stm class: Document the stm_ftrace	2017-08-25 17:58:34 +03:00
translations	kokr/memory-barriers.txt: Apply atomic_t.txt change	2017-09-08 10:10:53 -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	seccomp: Implement SECCOMP_RET_KILL_PROCESS action	2017-08-14 13:46:50 -07:00
virtual	KVM/ARM Changes for v4.14	2017-09-07 18:22:04 +02:00
vm	hmm: heterogeneous memory management documentation	2017-09-08 18:26:45 -07:00
w1	w1: add documentation for w1_ds2438	2017-03-17 15:10:49 +09:00
watchdog	watchdog: Revert "iTCO_wdt: all versions count down twice"	2017-09-09 17:41:24 +02:00
wimax
x86	Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-09-04 13:56:37 -07:00
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
atomic_bitops.txt	Documentation/locking/atomic: Add documents for new atomic_t APIs	2017-08-10 12:29:00 +02:00
atomic_t.txt	Documentation/locking/atomic: Finish the document...	2017-08-25 11:06:33 +02:00
bcache.txt	bcache.txt: standardize document format	2017-07-14 13:51:27 -06:00
bt8xxgpio.txt	bt8xxgpio.txt: standardize document format	2017-07-14 13:51:27 -06:00
btmrvl.txt	btmrvl.txt: standardize document format	2017-07-14 13:51:27 -06:00
bus-virt-phys-mapping.txt	bus-virt-phys-mapping.txt: standardize document format	2017-07-14 13:51:28 -06:00
cachetlb.txt	cachetlb.txt: standardize document format	2017-07-14 13:51:28 -06:00
cgroup-v2.txt	cgroup: add cgroup.stat interface with basic hierarchy stats	2017-08-02 12:05:20 -07:00
Changes	docs: add back 'Documentation/Changes' file (as symlink)	2016-12-14 16:30:12 -08:00
circular-buffers.txt	circular-buffers.txt: standardize document format	2017-07-14 13:51:29 -06:00
clk.txt	clk.txt: standardize document format	2017-07-14 13:51:29 -06:00
CodingStyle	doc: re-add CodingStyle and SubmittingPatches	2016-10-24 08:12:35 -02:00
conf.py	docs-rst: don't require adjustbox anymore	2017-09-08 10:02:55 -06:00
cpu-load.txt	cpu-load: standardize document format	2017-07-14 13:51:30 -06:00
cputopology.txt	cputopology.txt: standardize document format	2017-07-14 13:51:30 -06:00
crc32.txt	crc32.txt: standardize document format	2017-07-14 13:51:30 -06:00
dcdbas.txt	dcdbas.txt: standardize document format	2017-07-14 13:51:31 -06:00
debugging-modules.txt
debugging-via-ohci1394.txt	debugging-via-ohci1394.txt: standardize document format	2017-07-14 13:51:34 -06:00
dell_rbu.txt	dell_rbu.txt: standardize document format	2017-07-14 13:58:12 -06:00
digsig.txt	digsig.txt: standardize document format	2017-07-14 13:51:31 -06:00
DMA-API-HOWTO.txt	DMA-API-HOWTO.txt: standardize document format	2017-07-14 13:51:32 -06:00
DMA-API.txt	dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags	2017-09-01 11:59:17 +02:00
DMA-attributes.txt	DMA-attributes.txt: standardize document format	2017-07-14 13:51:33 -06:00
DMA-ISA-LPC.txt	DMA-ISA-LPC.txt: standardize document format	2017-07-14 13:51:33 -06:00
docutils.conf
dontdiff	Remove gperf usage from toolchain	2017-08-19 11:02:53 -07:00
efi-stub.txt	efi-stub.txt: standardize document format	2017-07-14 13:51:34 -06:00
eisa.txt	eisa.txt: standardize document format	2017-07-14 13:51:34 -06:00
errseq.rst	Documentation: add some docs for errseq_t	2017-07-29 09:01:02 -04:00
flexible-arrays.txt	flexible-arrays.txt: standardize document format	2017-07-14 13:51:35 -06:00
futex-requeue-pi.txt	futex-requeue-pi.txt: standardize document format	2017-07-14 13:51:35 -06:00
gcc-plugins.txt	gcc-plugins.txt: standardize document format	2017-07-14 13:51:36 -06:00
highuid.txt	highuid.txt: standardize document format	2017-07-14 13:51:36 -06:00
hw_random.txt	hw_random.txt: standardize document format	2017-07-14 13:51:37 -06:00
hwspinlock.txt	hwspinlock.txt: standardize document format	2017-07-14 13:51:37 -06:00
index.rst	Make the main documentation title less Geocities	2017-06-23 14:02:27 -06:00
intel_txt.txt	intel_txt.txt: standardize document format	2017-07-14 13:51:38 -06:00
Intel-IOMMU.txt	Intel-IOMMU.txt: standardize document format	2017-07-14 13:51:38 -06:00
io_ordering.txt	io_ordering.txt: standardize document format	2017-07-14 13:51:39 -06:00
io-mapping.txt	io-mapping.txt: standardize document format	2017-07-14 13:51:38 -06:00
iostats.txt	iostats.txt: update it to cover recent Kernels	2017-07-14 13:51:40 -06:00
IPMI.txt	IPMI.txt: standardize document format	2017-07-14 13:51:40 -06:00
IRQ-affinity.txt	IRQ-affinity.txt: standardize document format	2017-07-14 13:51:41 -06:00
IRQ-domain.txt	IRQ-domain.txt: standardize document format	2017-07-14 13:51:41 -06:00
IRQ.txt	IRQ.txt: add a markup for its title	2017-07-14 13:51:42 -06:00
irqflags-tracing.txt	irqflags-tracing.txt: standardize document format	2017-07-14 13:51:42 -06:00
isa.txt	isa.txt: standardize document format	2017-07-14 13:51:43 -06:00
isapnp.txt	isapnp.txt: promote title level	2017-07-14 13:51:43 -06:00
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	kernel-per-CPU-kthreads.txt: standardize document format	2017-07-14 13:51:43 -06:00
kobject.txt	kobject.txt: standardize document format	2017-07-14 13:51:44 -06:00
kprobes.txt	docs: kprobes.txt: Fix whitespacing	2017-07-14 13:58:14 -06:00
kref.txt	kref.txt: standardize document format	2017-07-14 13:51:45 -06:00
ldm.txt	ldm.txt: standardize document format	2017-07-14 13:51:45 -06:00
lockup-watchdogs.txt	lockup-watchdogs.txt: standardize document format	2017-07-14 13:51:46 -06:00
logo.gif
logo.txt
lsm.txt	docs-rst: convert lsm from DocBook to ReST	2017-05-16 08:44:19 -03:00
lzo.txt	lzo.txt: standardize document format	2017-07-14 13:51:46 -06:00
mailbox.txt	mailbox.txt: standardize document format	2017-07-14 13:51:47 -06:00
Makefile	doc: Makefile: if sphinx is not found, run a check script	2017-08-24 13:18:30 -06:00
memory-barriers.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-09-04 11:52:29 -07:00
memory-hotplug.txt	memory-hotplug.txt: standardize document format	2017-07-14 13:57:53 -06:00
men-chameleon-bus.txt	men-chameleon-bus.txt: standardize document format	2017-07-14 13:57:54 -06:00
nommu-mmap.txt	nommu-mmap.txt: don't use all upper case on titles	2017-07-14 13:57:55 -06:00
ntb.txt	This series converts a number of top-level documents to the RST format	2017-07-15 12:58:58 -07:00
numastat.txt	numastat.txt: standardize document format	2017-07-14 13:57:56 -06:00
padata.txt	padata.txt: standardize document format	2017-07-14 13:57:56 -06:00
parport-lowlevel.txt	parport-lowlevel.txt: standardize document format	2017-07-14 13:57:57 -06:00
percpu-rw-semaphore.txt	percpu-rw-semaphore.txt: standardize document format	2017-07-14 13:57:58 -06:00
phy.txt	phy.txt: standardize document format	2017-07-14 13:57:58 -06:00
pi-futex.txt	pi-futex.txt: standardize document format	2017-07-14 13:57:59 -06:00
pnp.txt	pnp.txt: standardize document format	2017-07-14 13:57:59 -06:00
preempt-locking.txt	preempt-locking.txt: standardize document format	2017-07-14 13:58:00 -06:00
printk-formats.txt	printk-formats.txt: Add examples for %pF and %pS usage	2017-08-24 18:49:52 +02:00
pwm.txt	pwm: Standardize document format	2017-07-06 08:23:30 +02:00
rbtree.txt	rbtree: cache leftmost node internally	2017-09-08 18:26:48 -07:00
remoteproc.txt	remoteproc.txt: standardize document format	2017-07-14 13:58:02 -06:00
rfkill.txt	rfkill.txt: standardize document format	2017-07-14 13:58:02 -06:00
robust-futex-ABI.txt	robust-futex-ABI.txt: standardize document format	2017-07-14 13:58:03 -06:00
robust-futexes.txt	robust-futexes.txt: standardize document format	2017-07-14 13:58:03 -06:00
rpmsg.txt	rpmsg.txt: standardize document format	2017-07-14 13:58:04 -06:00
rtc.txt	rtc: add generic nvmem support	2017-07-07 13:14:14 +02:00
SAK.txt	SAK.txt: standardize document format	2017-07-14 13:58:04 -06:00
sgi-ioc4.txt	sgi-ioc4.txt: standardize document format	2017-07-14 13:58:05 -06:00
siphash.txt	siphash.txt: standardize document format	2017-07-14 13:58:06 -06:00
SM501.txt	SM501.txt: standardize document format	2017-07-14 13:58:06 -06:00
smsc_ece1099.txt	smsc_ece1099.txt: standardize document format	2017-07-14 13:58:07 -06:00
static-keys.txt	jump_label: Provide hotplug context variants	2017-08-10 12:28:59 +02:00
SubmittingPatches	doc: re-add CodingStyle and SubmittingPatches	2016-10-24 08:12:35 -02:00
svga.txt	svga.txt: standardize document format	2017-07-14 13:58:08 -06:00
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	tee.txt: standardize document format	2017-07-14 13:58:14 -06:00
this_cpu_ops.txt	this_cpu_ops.txt: standardize document format	2017-07-14 13:58:08 -06:00
unaligned-memory-access.txt	unaligned-memory-access.txt: standardize document format	2017-07-14 13:58:09 -06:00
vfio-mediated-device.txt	vfio-mediated-device.txt: standardize document format	2017-07-14 13:58:10 -06:00
vfio.txt	vfio.txt: standardize document format	2017-07-14 13:58:10 -06:00
video-output.txt
xillybus.txt	xillybus.txt: standardize document format	2017-07-14 13:58:11 -06:00
xz.txt	xz.txt: standardize document format	2017-07-14 13:58:11 -06:00
zorro.txt	zorro.txt: standardize document format	2017-07-14 13:58:12 -06:00