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Minchan Kim 4e3ba87845 zram: support compaction 
Now that zsmalloc supports compaction, zram can use it.  For the first
step, this patch exports compact knob via sysfs so user can do compaction
via "echo 1 > /sys/block/zram0/compact".

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Gunho Lee <gunho.lee@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15 16:35:21 -07:00
..
ABI
zram: support compaction
2015-04-15 16:35:21 -07:00
accounting
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
acpi
Power management and ACPI updates for v4.1-rc1
2015-04-14 20:21:54 -07:00
aoe
…
arm
ARM: SoC platform changes
2015-02-17 09:27:54 -08:00
arm64
arm64: Emulate SETEND for AArch32 tasks
2015-01-23 17:11:44 +00:00
auxdisplay
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
backlight
…
blackfin
Documentation: fix blackfin gptimers-example build errors
2015-01-28 12:07:58 -07:00
block
Merge branch 'for-3.19/core' of git://git.kernel.dk/linux-block
2014-12-13 14:14:23 -08:00
blockdev
zram: report maximum used memory
2014-10-09 22:26:02 -04:00
bus-devices
…
cdrom
…
cgroups
Merge branch 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-04-13 16:47:11 -07:00
cma
cma: debug: document new debugfs interface
2015-04-14 16:49:00 -07:00
connector
w1: optional bundling of netlink kernel replies
2014-05-27 13:56:21 -07:00
console
…
cpu-freq
intel_pstate: Add num_pstates to sysfs
2015-01-30 01:52:17 +01:00
cpuidle
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cris
…
crypto
crypto: doc - userspace interface spec
2014-11-13 22:31:38 +08:00
development-process
Documentation: remove outdated references to the linux-next wiki
2014-10-28 09:06:11 -04:00
device-mapper
dm crypt: add 'submit_from_crypt_cpus' option
2015-02-16 11:11:15 -05:00
devicetree
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
dmaengine
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2015-02-18 08:49:20 -08:00
DocBook
KGDB/KDB New:
2015-02-20 15:13:29 -08:00
driver-model
Staging drivers patches for 3.20-rc1
2015-02-15 11:30:39 -08:00
dvb
[media] get_dvb_firmware: Update firmware of ITEtech IT9135
2014-09-21 17:03:04 -03:00
early-userspace
…
EDID
drm: Add 800x600 (SVGA) screen resolution to the built-in EDIDs
2014-05-26 12:53:40 +10:00
extcon
…
fault-injection
…
fb
…
filesystems
mm: new pfn_mkwrite same as page_mkwrite for VM_PFNMAP
2015-04-15 16:35:20 -07:00
firmware_class
doc: fix minor typos in firmware_class README
2014-07-17 18:43:40 -07:00
fmc
…
frv
…
gpio
gpio: board.txt: Fix the gpio name example
2015-01-28 11:14:00 -07:00
hid
HID: sensor: Update document for custom sensor
2015-04-10 22:22:56 +02:00
hwmon
hwmon: (it87) Add support for IT8620E
2015-04-05 06:01:00 -07:00
i2c
i2c: slave: add documentation for i2c-slave-eeprom
2015-03-27 16:53:39 +01:00
i2o
…
ia64
virtual: Documentation: simplify and generalize paravirt_ops.txt
2015-02-13 17:15:44 +10:30
ide
…
infiniband
IB/mad: add new ioctl to ABI to support new registration options
2014-08-10 20:36:00 -07:00
input
Input: alps - document stick behavior for protocol V2
2015-04-05 11:48:35 -07:00
ioctl
cxl: Add documentation for userspace APIs
2014-10-08 20:16:19 +11:00
isdn
…
ja_JP
…
kbuild
Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2015-02-19 10:31:37 -08:00
kdump
kernel: add panic_on_warn
2014-12-10 17:41:10 -08:00
ko_KR
…
laptops
Documentation: update .gitignore files
2014-09-26 11:02:59 +02:00
leds
…
locking
Documentation changes for 3.20
2015-02-11 13:03:11 -08:00
m68k
…
memory-devices
…
metag
…
mic
Documentation: Build mic/mpssd only for x86_64
2014-12-05 11:18:36 -05:00
mips
Documentation: au1xxx-ide.c has moved
2014-08-26 09:35:53 +02:00
misc-devices
Documentation/misc-devices/mei: Fix indentation of embedded code.
2015-01-29 12:56:20 -07:00
mmc
…
mn10300
…
mtd
MTD updates for 3.16:
2014-06-11 08:35:34 -07:00
namespaces
…
netlabel
…
networking
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-04-14 15:44:14 -04:00
nfc
…
nios2
Documentation: Add documentation for Nios2 architecture
2014-12-08 12:56:06 +08:00
parisc
…
PCI
PCI: Clarify policy for vendor IDs in pci.txt
2015-04-09 13:34:02 -05:00
pcmcia
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
phy
…
platform
Documentation: Add list of laptop models supported by the Compal driver
2014-06-10 19:11:06 -04:00
power
Power management and ACPI updates for v4.1-rc1
2015-04-14 20:21:54 -07:00
powerpc
cxl: Add documentation for userspace APIs
2014-10-08 20:16:19 +11:00
pps
…
prctl
Documentation: Restrict TSC test code to x86
2014-10-28 08:46:27 -04:00
pti
…
ptp
ptp: restore the makefile for building the test program.
2014-10-24 16:07:10 -04:00
rapidio
rapidio/tsi721_dma: rework scatter-gather list handling
2014-08-08 15:57:24 -07:00
RCU
Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD
2015-01-15 23:34:34 -08:00
s390
s390/docs: Remove section about script debugging from Debugging390.txt
2015-01-15 11:11:14 +01:00
scheduler
doc: brief user documentation for completion
2015-01-30 11:19:25 -07:00
scsi
genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely
2015-03-05 20:53:06 +01:00
security
KEYS: Make /proc/keys unconditional if CONFIG_KEYS=y
2015-01-22 22:34:32 +00:00
serial
serial: Fix locking for uart driver set_termios() method
2014-11-05 18:53:54 -08:00
sh
…
sound
ALSA: hda - Add "eapd" model string for AD1986A codec
2014-12-10 14:00:13 +01:00
spi
Merge remote-tracking branches 'spi/topic/spidev' and 'spi/topic/spidev-test' into spi-next
2015-04-11 23:09:31 +01:00
sysctl
mm: allow compaction of unevictable pages
2015-04-15 16:35:17 -07:00
target
Documentation/target: Update fabric_ops to latest code
2015-01-06 13:46:49 -08:00
thermal
Documentation: thermal: document of_cpufreq_cooling_register()
2015-01-06 14:39:17 -04:00
timers
documentation: Update NO_HZ_FULL interaction with POSIX timers
2015-02-26 11:57:29 -08:00
tpm
…
trace
Char / Misc patches for 3.20-rc1
2015-02-15 10:48:44 -08:00
usb
usb: patches for v4.1 merge window
2015-03-24 22:57:49 +01:00
vDSO
vdso: don't require 64-bit math in standalone test
2014-10-25 10:53:44 -04:00
video4linux
MODULE_DEVICE_TABLE: fix some callsites
2015-02-13 21:21:40 -08:00
virtual
Features and fixes for 4.1 (kvm/next)
2015-04-07 18:10:03 +02:00
vm
mm, doc: cleanup and clarify munmap behavior for hugetlb memory
2015-04-15 16:35:19 -07:00
w1
w1: new w1_ds2406 driver
2014-06-19 17:45:14 -07:00
watchdog
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
wimax
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x86
x86/mm/KASLR: Propagate KASLR status to kernel proper
2015-04-03 15:26:15 +02:00
xtensa
…
zh_CN
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-08-06 21:03:53 -07:00
00-INDEX
Update of Documentation/dmaengine/00-INDEX
2014-12-29 15:28:24 -07:00
applying-patches.txt
Documentation: change "&" to "and" in Documentation/applying-patches.txt
2014-09-26 11:10:11 +02:00
assoc_array.txt
…
atomic_ops.txt
documentation: Clarify memory-barrier semantics of atomic operations
2015-02-26 11:57:31 -08:00
bad_memory.txt
…
basic_profiling.txt
…
bcache.txt
…
binfmt_misc.txt
binfmt_misc: touch up documentation a bit
2014-10-14 02:18:16 +02:00
braille-console.txt
…
bt8xxgpio.txt
…
btmrvl.txt
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BUG-HUNTING
…
bus-virt-phys-mapping.txt
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cachetlb.txt
rmap: drop support of non-linear mappings
2015-02-10 14:30:31 -08:00
Changes
Documentation: GNU is frequently spelled Gnu
2014-12-29 15:33:17 -07:00
circular-buffers.txt
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clk.txt
clk: Add rate constraints to clocks
2015-02-02 14:23:42 -08:00
coccinelle.txt
…
CodeOfConflict
Code of Conflict
2015-02-27 11:44:24 -08:00
CodingStyle
CodingStyle: enable emacs display of trailing whitespace
2015-01-28 12:05:46 -07:00
cpu-hotplug.txt
…
cpu-load.txt
…
cputopology.txt
…
crc32.txt
…
dcdbas.txt
…
debugging-modules.txt
…
debugging-via-ohci1394.txt
firewire: revert to 4 GB RDMA, fix protocols using Memory Space
2014-05-29 15:50:30 +02:00
dell_rbu.txt
…
devices.txt
…
digsig.txt
…
DMA-API-HOWTO.txt
Documentation: correct parameter error for dma_mapping_error
2014-09-26 11:22:29 +02:00
DMA-API.txt
DMA-API: Capitalize "CPU" consistently
2014-05-26 17:28:27 -06:00
DMA-attributes.txt
…
dma-buf-sharing.txt
Documentation/dma-buf-sharing.txt: update API descriptions
2014-08-28 11:57:24 +05:30
DMA-ISA-LPC.txt
…
dontdiff
…
dynamic-debug-howto.txt
…
edac.txt
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
2014-06-04 08:50:34 -07:00
efi-stub.txt
…
eisa.txt
…
email-clients.txt
Documentation/email-clients.txt: add info about Claws Mail
2014-12-02 11:55:29 -05:00
flexible-arrays.txt
…
futex-requeue-pi.txt
doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants
2015-01-19 12:05:32 +01:00
gcov.txt
…
gdb-kernel-debugging.txt
scripts/gdb: add basic documentation
2015-02-17 14:34:54 -08:00
highuid.txt
…
HOWTO
Documentation: remove outdated references to the linux-next wiki
2014-10-28 09:06:11 -04:00
hsi.txt
…
hw_random.txt
…
hwspinlock.txt
…
init.txt
…
initrd.txt
…
intel_txt.txt
…
Intel-IOMMU.txt
…
io_ordering.txt
…
io-mapping.txt
…
iostats.txt
…
IPMI.txt
ipmi: Add SMBus interface driver (SSIF)
2014-12-11 15:04:11 -06:00
IRQ-affinity.txt
…
IRQ-domain.txt
irqdomain: Introduce new interfaces to support hierarchy irqdomains
2014-11-23 13:01:45 +01:00
IRQ.txt
…
irqflags-tracing.txt
…
isapnp.txt
…
java.txt
Documentation: update java sample wrapper for java 7
2014-05-25 12:39:00 -07:00
kasan.txt
kasan: enable instrumentation of global variables
2015-02-13 21:21:42 -08:00
kernel-doc-nano-HOWTO.txt
…
kernel-docs.txt
…
kernel-parameters.txt
Power management and ACPI updates for v4.1-rc1
2015-04-14 20:21:54 -07:00
kernel-per-CPU-kthreads.txt
documentation: Update per-CPU kthreads documentation
2015-02-26 11:57:30 -08:00
kmemcheck.txt
…
kmemleak.txt
Documentation: Add CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF case
2014-10-24 13:59:03 -04:00
kobject.txt
kobject: grammar fix
2014-12-08 09:07:11 -05:00
kprobes.txt
Documentation: add description for FTRACE probe status
2015-02-04 16:05:44 -05:00
kref.txt
…
kselftest.txt
kselftest: Move the docs to the Documentation dir
2014-11-24 10:49:54 -07:00
ldm.txt
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local_ops.txt
percpu: update local_ops.txt to reflect this_cpu operations
2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt
lockup-watchdogs: Fix a typo
2014-08-26 09:35:52 +02:00
logo.gif
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logo.txt
…
lzo.txt
Documentation: lzo: document part of the encoding
2014-09-28 11:08:00 +02:00
magic-number.txt
…
mailbox.txt
Documentation: Fix a typo in mailbox.txt
2014-11-03 11:54:50 -05:00
Makefile
Documentation: add makefiles for more targets
2014-09-26 11:02:56 +02:00
ManagementStyle
…
md.txt
…
media-framework.txt
…
memory-barriers.txt
documentation: Clarify control-dependency pairing
2015-02-26 11:57:32 -08:00
memory-hotplug.txt
memory-hotplug: add sysfs valid_zones attribute
2014-10-09 22:25:52 -04:00
module-signing.txt
…
mono.txt
…
nommu-mmap.txt
fs: introduce f_op->mmap_capabilities for nommu mmap support
2015-01-20 14:02:58 -07:00
numastat.txt
…
oops-tracing.txt
livepatch: kernel: add TAINT_LIVEPATCH
2014-12-22 15:40:48 +01:00
padata.txt
…
parport-lowlevel.txt
…
parport.txt
…
percpu-rw-semaphore.txt
…
phy.txt
phy: improved lookup method
2014-11-21 19:48:50 +05:30
pi-futex.txt
…
pinctrl.txt
pinctrl: fix example .get_group_pins implementation signature
2015-03-18 02:02:20 +01:00
pnp.txt
…
preempt-locking.txt
…
printk-formats.txt
lib/vsprintf: add %*pE[achnops] format specifier
2014-10-14 02:18:26 +02:00
pwm.txt
…
ramoops.txt
pstore-ram: Allow optional mapping with pgprot_noncached
2014-12-11 13:38:31 -08:00
rbtree.txt
…
remoteproc.txt
…
rfkill.txt
rfkill: document rfkill module parameters
2015-01-09 23:22:12 +01:00
robust-futex-ABI.txt
…
robust-futexes.txt
…
rpmsg.txt
…
rtc.txt
Documentation, split up rtc.txt into documentation and test file
2015-03-24 22:01:58 -06:00
SAK.txt
…
SecurityBugs
…
serial-console.txt
…
sgi-ioc4.txt
…
SM501.txt
…
smsc_ece1099.txt
…
sparse.txt
…
stable_api_nonsense.txt
…
stable_kernel_rules.txt
stable_kernel_rules: Add clause about specification of kernel versions to patch.
2015-03-26 23:52:24 +01:00
static-keys.txt
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SubmitChecklist
…
SubmittingDrivers
doc: SubmittingPatches: remove dead link, kerneltrap.org no longer works
2014-06-19 15:15:27 +02:00
SubmittingPatches
Merge branch 'doc/sp-update' into docs-next
2015-01-29 13:11:58 -07:00
svga.txt
…
sysfs-rules.txt
Documentation/sysfs-rules.txt: Add device attribute error code documentation
2014-09-19 14:44:51 -07:00
sysrq.txt
…
this_cpu_ops.txt
Docs: this_cpu_ops: remove redundant add forms
2014-09-26 11:03:00 +02:00
unaligned-memory-access.txt
…
unicode.txt
…
unshare.txt
…
vfio.txt
drivers/vfio: EEH support for VFIO PCI device
2014-08-05 15:28:48 +10:00
VGA-softcursor.txt
…
vgaarbiter.txt
…
video-output.txt
…
vme_api.txt
…
volatile-considered-harmful.txt
…
workqueue.txt
…
xillybus.txt
xillybus: Move out of staging
2014-09-23 23:44:16 -07:00
xz.txt
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zorro.txt
…