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Yang Yang 94bfe85bde mm/vmstat: add events for ksm cow 
Users may use ksm by calling madvise(, , MADV_MERGEABLE) when they want to
save memory, it's a tradeoff by suffering delay on ksm cow.  Users can get
to know how much memory ksm saved by reading
/sys/kernel/mm/ksm/pages_sharing, but they don't know what's the costs of
ksm cow, and this is important of some delay sensitive tasks.

So add ksm cow events to help users evaluate whether or how to use ksm. 
Also update Documentation/admin-guide/mm/ksm.rst with new added events.

Link: https://lkml.kernel.org/r/20220331035616.2390805-1-yang.yang29@zte.com.cn
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: xu xin <xu.xin16@zte.com.cn>
Reviewed-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Saravanan D <saravanand@fb.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-28 23:16:16 -07:00
..
ABI Changes since last update: 2022-04-20 12:35:20 -07:00
accounting - A bunch of fixes: forced idle time accounting, utilization values 2022-01-23 17:35:27 +02:00
admin-guide mm/vmstat: add events for ksm cow 2022-04-28 23:16:16 -07:00
arc
arm Documentation: arm: marvell: Extend Avanta list 2022-01-27 11:22:34 -07:00
arm64 Merge branch 'for-next/mte' into for-next/core 2022-03-14 19:01:23 +00:00
block block: remove biodoc.rst 2022-02-15 07:47:52 -07:00
bpf docs: netdev: move the netdev-FAQ to the process pages 2022-03-31 10:49:39 +02:00
cdrom Documentation: Fix links for udftools project and pktcdvd tool 2022-02-15 16:15:33 -07:00
core-api XArray update for 5.18: 2022-04-01 13:40:44 -07:00
cpu-freq cpufreq: Reintroduce ready() callback 2022-02-09 13:18:49 +05:30
crypto
dev-tools Documentation: kunit: fix path to .kunitconfig in start.rst 2022-04-04 12:02:44 -06:00
devicetree Networking fixes for 5.18-rc5, including fixes from bluetooth, bpf 2022-04-28 12:34:50 -07:00
doc-guide docs: discourage use of list tables 2022-01-07 09:33:13 -07:00
driver-api Merge drm-misc/drm-misc-next-fixes into drm-misc-fixes 2022-04-05 11:39:22 +02:00
fault-injection
fb
features nds32: Remove the architecture 2022-03-07 13:54:59 +01:00
filesystems f2fs-fix-5.18 2022-04-25 10:53:56 -07:00
firmware_class
firmware-guide Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-03-26 12:46:08 -07:00
fpga
gpu pci-v5.18-changes 2022-03-25 13:02:05 -07:00
hid
hwmon Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
i2c i2c: i801: Add support for Intel Raptor Lake PCH-S 2022-02-15 10:03:40 +01:00
ia64
ide
iio
infiniband
input Input: docs: add more details on the use of BTN_TOOL 2022-03-01 15:46:03 +01:00
isdn
kbuild kbuild: Make $(LLVM) more flexible 2022-03-31 12:03:46 +09:00
kernel-hacking docs: fix typo in Documentation/kernel-hacking/locking.rst 2022-01-27 11:22:33 -07:00
leds
litmus-tests
livepatch
locking Documentation: Fix duplicate statement about raw_spinlock_t type 2022-03-25 13:30:08 -06:00
m68k
maintainer Some late-arriving documentation improvements. This is mostly build-system 2022-03-31 12:10:42 -07:00
mhi
mips
misc-devices
netlabel
networking doc/ip-sysctl: add bc_forwarding 2022-04-20 10:31:43 +01:00
nios2
nvdimm
openrisc
parisc
PCI PCI/doc: cleanup references to the legacy PCI DMA API 2022-03-30 16:54:24 +02:00
pcmcia
peci docs: Add PECI documentation 2022-02-09 08:04:44 +01:00
power Documentation: EM: Describe new registration method using DT 2022-03-03 09:35:04 +05:30
powerpc
process docs: netdev: move the netdev-FAQ to the process pages 2022-03-31 10:49:39 +02:00
RCU
riscv Documentation: riscv: remove non-existent directory from table of contents 2022-03-31 16:18:56 -07:00
s390
scheduler Changes in this cycle were: 2022-03-22 14:39:12 -07:00
scsi scsi: ufs: docs: UFS documentation corrections 2022-03-08 22:49:49 -05:00
security selinux/stable-5.18 PR 20220321 2022-03-21 20:47:54 -07:00
sh
sound ALSA: hda/realtek: Add alc256-samsung-headphone fixup 2022-03-22 21:51:02 +01:00
sparc
sphinx docs: sphinx/requirements: Limit jinja2<3.1 2022-03-30 13:44:54 -06:00
sphinx-static
spi spi: pxa2xx_spi: Convert to use GPIO descriptors 2022-01-31 15:17:27 +00:00
staging remoteproc: Change rproc_shutdown() to return a status 2022-03-11 14:31:55 -06:00
target
timers
tools Real Time Analysis Tool updates for 5.18 2022-03-23 11:08:10 -07:00
trace Updates to Tracing: 2022-04-03 12:26:01 -07:00
translations Kbuild -std=gnu11 updates for v5.18 2022-03-25 11:48:01 -07:00
tty
usb usb: gadget: f_uac2: Optionally determine bInterval for HS and SS 2022-01-31 14:26:18 +01:00
userspace-api platform-drivers-x86 for v5.18-1 2022-03-25 12:14:39 -07:00
virt Documentation: KVM: Add SPDX-License-Identifier tag 2022-04-11 13:28:56 -04:00
vm mm/sparse-vmemmap: improve memory savings for compound devmaps 2022-04-28 23:16:16 -07:00
w1
watchdog
x86 - More noinstr fixes 2022-03-25 12:34:53 -07:00
xtensa
.gitignore
arch.rst
asm-annotations.rst linkage: remove SYM_FUNC_{START,END}_ALIAS() 2022-02-22 16:21:34 +00:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py docs: pdfdocs: Pull LaTeX preamble part out of conf.py 2022-02-24 12:26:13 -07:00
COPYING-logo
docutils.conf
dontdiff
index.rst docs: Add PECI documentation 2022-02-09 08:04:44 +01:00
Kconfig
logo.gif
Makefile docs: Makefile: Add -no-shell-escape option to LATEXOPTS 2022-02-14 12:50:17 -07:00
memory-barriers.txt
SubmittingPatches
watch_queue.rst