Mikulas Patocka c3ca015fab dax: remove the pmem_dax_ops->flush abstraction ... Commit abebfbe2f7 ("dm: add ->flush() dax operation support") is buggy. A DM device may be composed of multiple underlying devices and all of them need to be flushed. That commit just routes the flush request to the first device and ignores the other devices. It could be fixed by adding more complex logic to the device mapper. But there is only one implementation of the method pmem_dax_ops->flush - that is pmem_dax_flush() - and it calls arch_wb_cache_pmem(). Consequently, we don't need the pmem_dax_ops->flush abstraction at all, we can call arch_wb_cache_pmem() directly from dax_flush() because dax_dev->ops->flush can't ever reach anything different from arch_wb_cache_pmem(). It should be also pointed out that for some uses of persistent memory it is needed to flush only a very small amount of data (such as 1 cacheline), and it would be overkill if we go through that device mapper machinery for a single flushed cache line. Fix this by removing the pmem_dax_ops->flush abstraction and call arch_wb_cache_pmem() directly from dax_flush(). Also, remove the device mapper code that forwards the flushes. Fixes: abebfbe2f7 ("dm: add ->flush() dax operation support") Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2017-09-11 11:00:55 -04:00
..
accessibility
acpi	Merge branches 'acpica-fix', 'acpi-ec-fix' and 'acpi-properties-fix'	2017-08-24 22:22:53 +02:00
amba
android	ANDROID: binder: fix proc->tsk check.	2017-08-22 18:42:57 -07:00
ata	libata: fix a couple of doc build warnings	2017-07-31 08:03:06 -07:00
atm	atm: zatm: Fix an error handling path in 'zatm_init_one()'	2017-07-18 11:37:46 -07:00
auxdisplay
base	driver core fixes for 4.13-rc5	2017-08-13 12:44:18 -07:00
bcma
block	virtio: bugfix	2017-08-25 17:40:03 -07:00
bluetooth
bus	bus: uniphier-system-bus: set up registers when resuming	2017-08-04 12:57:18 +02:00
cdrom
char	random: fix warning message on ia64 and parisc	2017-08-08 09:36:46 -07:00
clk	clk: keystone: sci-clk: Fix sci_clk_get	2017-08-02 18:37:26 -07:00
clocksource	clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies	2017-08-11 12:53:29 +02:00
connector
cpufreq	cpufreq: intel_pstate: report correct CPU frequencies during trace	2017-08-11 01:25:53 +02:00
cpuidle	powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails	2017-08-08 20:21:23 +10:00
crypto	crypto: ixp4xx - Fix error handling path in 'aead_perform()'	2017-08-09 20:01:33 +08:00
dax	dax: remove the pmem_dax_ops->flush abstraction	2017-09-11 11:00:55 -04:00
dca
devfreq
dio
dma	dmaengine: tegra210-adma: fix of_irq_get() error check	2017-08-09 11:39:16 +05:30
dma-buf	dma-buf/sync_file: Allow multiple sync_files to wrap a single dma-fence	2017-07-31 10:55:24 -03:00
edac
eisa
extcon
firewire
firmware
fmc
fpga
fsi	drivers/fsi: fix fsi_slave_mode prototype	2017-07-17 16:13:54 +02:00
gpio	gpio: mvebu: Fix cause computation in irq handler	2017-08-14 15:00:43 +02:00
gpu	Merge tag 'drm-misc-fixes-2017-08-24' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes	2017-08-25 09:29:38 +10:00
hid	HID: ortek: add one more buggy device	2017-07-24 17:38:21 +02:00
hsi
hv	vmbus: re-enable channel tasklet	2017-07-17 15:00:47 +02:00
hwmon
hwspinlock
hwtracing
i2c	i2c: designware: Fix runtime PM for I2C slave mode	2017-08-17 17:55:29 +02:00
ide	ide: avoid warning for timings calculation	2017-07-21 04:37:22 +01:00
idle
iio	iio: magnetometer: st_magn: remove ihl property for LSM303AGR	2017-08-20 15:21:49 +01:00
infiniband	IB/mlx5: Always return success for RoCE modify port	2017-08-24 15:33:33 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2017-08-26 12:48:29 -07:00
iommu	iommu: Fix wrong freeing of iommu_device->dev	2017-08-15 13:58:48 +02:00
ipack
irqchip	irqchip fixes for 4.13	2017-08-14 09:34:10 +02:00
isdn	mISDN: Fix null pointer dereference at mISDN_FsmNew	2017-08-11 14:56:23 -07:00
leds
lguest
lightnvm	lightnvm: pblk: advance bio according to lba index	2017-07-28 08:06:00 -06:00
macintosh
mailbox	mailbox: pcc: Fix crash when request PCC channel 0	2017-07-26 02:11:47 +02:00
mcb
md	dax: remove the pmem_dax_ops->flush abstraction	2017-09-11 11:00:55 -04:00
media	media: platform: davinci: drop VPFE_CMD_S_CCDC_RAW_PARAMS	2017-07-26 06:14:33 -04:00
memory	memory: atmel-ebi: Fix smc cycle xlate converter	2017-07-26 22:37:54 +02:00
memstick
message
mfd	ARM: SoC fixes for 4.13	2017-08-24 14:01:18 -07:00
misc	mei: exclude device from suspend direct complete optimization	2017-08-10 14:13:18 -07:00
mmc	mmc: block: prevent propagating R1_OUT_OF_RANGE for open-ending mode	2017-08-21 13:32:31 +02:00
mtd	mtd: nand: atmel: Relax tADL_min constraint	2017-08-24 20:59:50 -07:00
mux	mux: mux-core: unregister mux_class in mux_exit()	2017-07-17 16:38:35 +02:00
net	net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled	2017-08-18 16:15:37 -07:00
nfc
ntb	ntb: transport shouldn't disable link due to bogus values in SPADs	2017-08-01 13:31:44 -04:00
nubus
nvdimm	dax: remove the pmem_dax_ops->flush abstraction	2017-09-11 11:00:55 -04:00
nvme	nvme-pci: set cqe_seen on polled completions	2017-08-18 09:19:39 +02:00
nvmem	nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse	2017-07-17 16:15:57 +02:00
of	of: fix DMA mask generation	2017-08-17 10:23:45 +02:00
oprofile
parisc	parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo	2017-08-16 09:50:39 +02:00
parport
pci	pci-v4.13-fixes-3	2017-08-26 12:46:14 -07:00
pcmcia
perf	drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU	2017-07-27 13:43:22 +01:00
phy	phy: bcm-ns-usb3: fix MDIO_BUS dependency	2017-07-27 17:20:19 -07:00
pinctrl	Pin control fixes for the v4.13 cycle:	2017-08-09 14:30:34 -07:00
platform	platform/x86: intel-vbtn: match power button on press rather than release	2017-08-05 14:37:19 -07:00
pnp
power
powercap
pps
ps3
ptp	ptp: introduce ptp auxiliary worker	2017-08-01 15:22:55 -07:00
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc	rtc: ds1307: fix regmap config	2017-08-21 11:08:03 +02:00
s390	s390/qeth: fix L3 next-hop in xmit qeth hdr	2017-08-07 11:24:37 -07:00
sbus	sbus: Convert to using %pOF instead of full_name	2017-07-20 12:37:10 -07:00
scsi	SCSI fixes on 20170823	2017-08-23 11:34:40 -07:00
sfi
sh
sn
soc	soc: ti: knav: Add a NULL pointer check for kdev in knav_pool_create	2017-08-21 09:19:50 +02:00
spi
spmi	spmi: pmic-arb: Always allocate ppid_to_apid table	2017-07-17 15:00:47 +02:00
ssb
staging	staging: rtl8188eu: add RNX-N150NUB support	2017-08-18 16:01:46 -07:00
target	target: Fix node_acl demo-mode + uncached dynamic shutdown regression	2017-08-09 20:55:19 -07:00
tc
tee
thermal
thunderbolt	char/misc fixes for 4.13-rc5	2017-08-13 12:41:58 -07:00
tty	pty: Repair TIOCGPTPEER	2017-08-24 13:23:03 -07:00
uio
usb	USB fixes for 4.13-rc5	2017-08-13 12:27:42 -07:00
uwb
vfio	vfio/pci: Fix handling of RC integrated endpoint PCIe capability size	2017-07-27 10:39:33 -06:00
vhost	Revert "vhost: cache used event for better performance"	2017-07-29 14:15:56 -07:00
video	efifb: allow user to disable write combined mapping.	2017-07-31 18:45:41 +02:00
virt
virtio	virtio_pci: fix cpu affinity support	2017-08-25 21:38:26 +03:00
vlynq
vme
w1	w1: omap-hdq: fix error return code in omap_hdq_probe()	2017-07-17 16:48:15 +02:00
watchdog
xen	Kbuild fixes for v4.13	2017-08-24 14:22:27 -07:00
zorro
Kconfig
Makefile