Joonsoo Kim fe896d1878 mm: introduce page reference manipulation functions ... The success of CMA allocation largely depends on the success of migration and key factor of it is page reference count. Until now, page reference is manipulated by direct calling atomic functions so we cannot follow up who and where manipulate it. Then, it is hard to find actual reason of CMA allocation failure. CMA allocation should be guaranteed to succeed so finding offending place is really important. In this patch, call sites where page reference is manipulated are converted to introduced wrapper function. This is preparation step to add tracepoint to each page reference manipulation function. With this facility, we can easily find reason of CMA allocation failure. There is no functional change in this patch. In addition, this patch also converts reference read sites. It will help a second step that renames page._count to something else and prevents later attempt to direct access to it (Suggested by Andrew). Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-03-17 15:09:34 -07:00
..
accessibility	…
acpi	libnvdimm for 4.6	2016-03-16 17:45:56 -07:00
amba	…
android	drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE	2016-02-20 15:43:56 -08:00
ata	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
atm	atm: solos-pci: use to_pci_dev()	2015-12-29 15:32:24 -05:00
auxdisplay	…
base	Power management and ACPI material for v4.6-rc1, part 1	2016-03-16 14:10:53 -07:00
bcma	GPIO bulk updates for the v4.5 kernel cycle:	2016-01-17 12:32:01 -08:00
block	mm: introduce page reference manipulation functions	2016-03-17 15:09:34 -07:00
bluetooth	Bluetooth: btmrvl: don't send data to firmware while processing suspend	2016-01-06 16:37:14 +01:00
bus	vexpress fixes for v4.5	2016-02-01 12:27:18 -08:00
cdrom	cdrom: don't open-code memdup_user()	2016-01-06 08:25:24 -05:00
char	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
clk	clk: ti: omap3+: dpll: use non-locking version of clk_get_rate	2016-02-22 14:03:02 -08:00
clocksource	One of the largest releases for KVM... Hardly any generic improvement,	2016-03-16 09:55:35 -07:00
connector	connector: bump skb->users before callback invocation	2016-01-04 21:46:45 -05:00
cpufreq	Merge branch 'pm-cpufreq'	2016-03-14 14:22:03 +01:00
cpuidle	cpuidle: menu: help gcc generate slightly better code	2016-02-17 00:28:15 +01:00
crypto	crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init()	2016-02-06 15:23:56 +08:00
dca	…
devfreq	PM / devfreq: tegra: Set freq in rate callback	2016-02-23 14:27:42 +09:00
dio	…
dma	Merge branch 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-14 16:31:41 -07:00
dma-buf	…
edac	EDAC queue for 4.6	2016-03-16 08:36:55 -07:00
eisa	…
extcon	extcon: add Maxim MAX3355 driver	2015-12-21 11:44:00 +09:00
firewire	…
firmware	drivers/firmware/broadcom/bcm47xx_nvram.c: fix incorrect __ioread32_copy	2016-03-17 15:09:34 -07:00
fmc	…
fpga	…
gpio	gpio: rcar: Add Runtime PM handling for interrupts	2016-02-25 15:46:27 +01:00
gpu	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
hid	asm-generic changes for 4.5	2016-01-20 17:30:20 -08:00
hsi	HSI: omap_ssi_port: fix handling of_get_named_gpio result	2016-01-07 16:07:54 +01:00
hv	drivers/hv: Move VMBus hypercall codes into Hyper-V UAPI header	2016-02-16 18:48:40 +01:00
hwmon	hwmon: Create an NSA320 hardware monitoring driver	2016-03-08 18:40:49 -08:00
hwspinlock	drivers/hwspinlock: fix race between radix tree insertion and lookup	2016-02-03 08:28:43 -08:00
hwtracing	coresight: Fix a typo in Kconfig	2015-12-21 13:31:31 -08:00
i2c	i2c: designware: Add device HID for future AMD I2C controller	2016-03-10 21:34:47 +01:00
ide	PCI: Remove includes of asm/pci-bridge.h	2016-02-05 16:29:28 -06:00
idle	…
iio	Second set of IIO fixes for the 4.5 cycle. These ones are mostly	2016-02-01 13:08:26 -08:00
infiniband	Additional 4.5-rc6 fixes	2016-03-04 18:06:49 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2016-02-10 12:21:57 -08:00
iommu	iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path	2016-02-29 23:55:16 +01:00
ipack	…
irqchip	irqchip/irq-alpine-msi: Release the correct domain on error	2016-03-11 10:06:55 +01:00
isdn	ser_gigaset: use container_of() instead of detour	2016-02-19 15:52:41 -05:00
leds	leds: triggers: simplify led_trigger_store	2016-03-14 09:22:23 +01:00
lguest	lguest: Map switcher text R/O	2016-01-12 12:17:28 +01:00
lightnvm	lightnvm: allow to force mm initialization	2016-02-04 09:19:45 -07:00
macintosh	PCI: Remove includes of asm/pci-bridge.h	2016-02-05 16:29:28 -06:00
mailbox	Merge branches 'acpi-processor' and 'acpi-cppc'	2016-03-14 14:20:33 +01:00
mcb	…
md	dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request()	2016-03-14 17:04:34 -04:00
media	media updates for v4.6-rc1	2016-03-16 18:27:32 -07:00
memory	ARM: SoC driver updates for v4.5	2016-01-20 18:42:30 -08:00
memstick	memstick: use sector_div instead of do_div	2016-01-20 17:09:18 -08:00
message	mptbase: fixup error handling paths in mpt_attach()	2016-02-23 21:27:02 -05:00
mfd	RTC for 4.6	2016-03-15 21:58:58 -07:00
misc	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
mmc	mmc: omap_hsmmc: Fix PM regression with deferred probe for pm_runtime_reinit	2016-02-15 14:10:48 +01:00
mtd	Late MTD fix for v4.5:	2016-03-11 16:34:18 -08:00
net	mm: introduce page reference manipulation functions	2016-03-17 15:09:34 -07:00
nfc	nfc: pn544: Remove i2c client gpio irq configuration	2015-12-29 19:06:23 +01:00
ntb	NTB: Fix macro parameter conflict with field name	2016-01-21 19:53:10 -05:00
nubus	…
nvdimm	Merge branch 'for-4.6/pfn' into libnvdimm-for-next	2016-03-09 17:15:43 -08:00
nvme	nvme: fix max_segments integer truncation	2016-03-03 14:43:10 -07:00
nvmem	nvmem: qfprom: Specify LE device endianness	2016-02-07 23:09:13 -08:00
of	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
oprofile	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
parisc	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
parport	parport: avoid assignment in if	2016-01-03 16:32:59 -08:00
pci	PCI changes for the v4.6 merge window:	2016-03-16 14:45:55 -07:00
pcmcia	…
perf	…
phy	phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload	2016-02-10 11:46:01 +05:30
pinctrl	pinctrl: single: Use a separate lockdep class	2016-03-11 23:03:06 +07:00
platform	intel_scu_ipcutil: underflow in scu_reg_access()	2016-01-30 09:40:35 -08:00
pnp	PNP / ACPI: add ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid type	2016-03-09 23:50:55 +01:00
power	power: bq27xxx_battery: Restore device name	2016-02-21 20:49:34 +01:00
powercap	powercap/rapl: track lead cpu per package	2016-03-09 00:26:44 +01:00
pps	…
ps3	…
ptp	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-15 12:13:56 -07:00
pwm	pwm: Mark all devices as "might sleep"	2016-01-21 15:04:59 +01:00
rapidio	drivers: Initialize resource entry to zero	2016-01-30 09:49:58 +01:00
ras	…
regulator	Merge remote-tracking branches 'regulator/topic/s5m8767' and 'regulator/topic/vexpress' into regulator-next	2016-03-13 15:20:14 +07:00
remoteproc	virtio: make find_vqs() checkpatch.pl-friendly	2016-01-12 20:47:06 +02:00
reset	…
rpmsg	virtio: make find_vqs() checkpatch.pl-friendly	2016-01-12 20:47:06 +02:00
rtc	rtc: pcf2127: add pcf2129 device id	2016-03-14 17:08:41 +01:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2016-03-16 10:47:45 -07:00
sbus	convert a bunch of open-coded instances of memdup_user_nul()	2016-01-04 10:26:58 -05:00
scsi	SCSI misc on 20160315	2016-03-16 17:16:22 -07:00
sfi	…
sh	Linux 4.5-rc6	2016-03-04 12:12:08 +01:00
sn	…
soc	ARM: SoC support for Tegra platforms for v4.5	2016-01-22 17:30:52 -08:00
spi	Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next	2016-03-11 14:28:53 +07:00
spmi	…
ssb	ssb: host_soc depends on sprom	2016-02-26 12:47:32 +02:00
staging	media fixes for v4.5-rc7	2016-03-05 12:32:34 -08:00
target	target: Drop incorrect ABORT_TASK put for completed commands	2016-03-05 20:24:47 -08:00
tc	…
thermal	thermal: cpu_cooling: fix out of bounds access in time_in_idle	2016-02-11 07:13:29 -08:00
thunderbolt	…
tty	Revert "8250: uniphier: allow modular build with 8250 console"	2016-02-07 18:22:54 -08:00
uio	…
usb	media updates for v4.6-rc1	2016-03-16 18:27:32 -07:00
uwb	…
vfio	vfio: fix ioctl error handling	2016-02-28 07:38:52 -07:00
vhost	vhost: fix error path in vhost_init_used()	2016-03-02 17:01:49 +02:00
video	fbdev changes for 4.6	2016-03-16 18:37:20 -07:00
virt	…
virtio	virtio_balloon: export 'available' memory to balloon statistics	2016-03-17 15:09:34 -07:00
vlynq	…
vme	…
w1	…
watchdog	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2016-03-01 08:57:34 -08:00
xen	xen_balloon: support memory auto onlining policy	2016-03-15 16:55:16 -07:00
zorro	zorro: Use kobj_to_dev()	2016-01-25 09:42:23 +01:00
Kconfig	…
Makefile	…