Sami Tolvanen a739ff3f54 dm verity: add support for forward error correction ... Add support for correcting corrupted blocks using Reed-Solomon. This code uses RS(255, N) interleaved across data and hash blocks. Each error-correcting block covers N bytes evenly distributed across the combined total data, so that each byte is a maximum distance away from the others. This makes it possible to recover from several consecutive corrupted blocks with relatively small space overhead. In addition, using verity hashes to locate erasures nearly doubles the effectiveness of error correction. Being able to detect corrupted blocks also improves performance, because only corrupted blocks need to corrected. For a 2 GiB partition, RS(255, 253) (two parity bytes for each 253-byte block) can correct up to 16 MiB of consecutive corrupted blocks if erasures can be located, and 8 MiB if they cannot, with 16 MiB space overhead. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2015-12-10 10:39:03 -05:00
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accessibility	…
acpi	Merge branches 'acpi-smbus', 'acpi-ec' and 'acpi-pci'	2015-11-20 01:22:52 +01:00
amba	…
android	…
ata	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
atm	…
auxdisplay	…
base	Merge branch 'pm-sleep'	2015-11-20 01:22:33 +01:00
bcma	…
block	mtip32xx: use formatting capability of kthread_create_on_node	2015-11-20 08:46:50 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
bus	Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes	2015-11-12 09:58:21 -08:00
cdrom	…
char	ipmi watchdog : add panic_wdt_timeout parameter	2015-11-16 06:28:43 -06:00
clk	h8300 update for v4.4	2015-11-12 15:26:39 -08:00
clocksource	clocksource: Disallow drivers for ARCH_USES_GETTIMEOFFSET	2015-11-16 19:07:08 +01:00
connector	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
cpufreq	Merge branches 'pm-cpufreq' and 'acpi-cppc'	2015-11-27 16:23:59 +01:00
cpuidle	…
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2015-11-17 09:40:05 -08:00
dca	…
devfreq	…
dio	…
dma	dmaengine: at_hdmac: use %pad format string for dma_addr_t	2015-11-16 09:21:05 +05:30
dma-buf	dma-buf/fence: add fence_wait_any_timeout function v2	2015-10-30 01:16:16 -04:00
edac	asm-generic cleanups	2015-11-06 14:22:15 -08:00
eisa	…
extcon	Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged	2015-10-26 14:48:22 +00:00
firewire	IEEE 1394 subsystem patch:	2015-11-11 10:21:34 -08:00
firmware	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
fmc	…
fpga	fpga: socfpga: Fix check of return value of devm_request_irq	2015-10-29 15:20:25 -07:00
gpio	asm-generic cleanups	2015-11-06 14:22:15 -08:00
gpu	Merge branch 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes	2015-11-28 06:50:34 +10:00
hid	HID: wacom: fixup quirks setup for WACOM_DEVICETYPE_PAD	2015-11-17 00:24:14 +01:00
hsi	hsi: controllers:remove redundant code	2015-10-30 16:10:40 +01:00
hv	drivers/hv: share Hyper-V SynIC constants with userspace	2015-11-04 16:24:33 +01:00
hwmon	hwmon: (scpi) skip unsupported sensors properly	2015-11-16 09:59:50 -08:00
hwspinlock	…
hwtracing	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
i2c	i2c: i801: add Intel Lewisburg device IDs	2015-11-20 16:22:21 +01:00
ide	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
idle	…
iio	First set of IIO fixes for the 4.4 cycle.	2015-11-18 13:15:50 -08:00
infiniband	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-11-13 21:41:14 -08:00
iommu	s390/pci_dma: handle dma table failures	2015-11-09 09:10:49 +01:00
ipack	…
irqchip	irqchip/gic: Add save/restore of the active state	2015-11-17 14:25:59 +01:00
isdn	TTY/Serial driver patches for 4.4-rc1	2015-11-04 21:35:12 -08:00
leds	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
lguest	…
lightnvm	lightnvm: add free and bad lun info to show luns	2015-11-20 08:33:21 -07:00
macintosh	…
mailbox	mailbox: mailbox-test: avoid reading iomem twice	2015-11-04 14:03:04 +05:30
mcb	mcb: Destroy IDA on module unload	2015-10-29 09:02:16 +09:00
md	dm verity: add support for forward error correction	2015-12-10 10:39:03 -05:00
media	various: fix pci_set_dma_mask return value checking	2015-11-20 16:17:32 -08:00
memory	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
memstick	…
message	SCSI queue for 4.4.	2015-11-12 07:06:18 -05:00
mfd	asm-generic cleanups	2015-11-06 14:22:15 -08:00
misc	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
mmc	mmc: remove bondage between REQ_META and reliable write	2015-11-09 14:04:52 +01:00
mtd	mtd: nand: fix shutdown/reboot for multi-chip systems	2015-11-16 10:51:39 -08:00
net	various: fix pci_set_dma_mask return value checking	2015-11-20 16:17:32 -08:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
ntb	NTB: fix 32-bit compiler warning	2015-11-08 16:24:43 -05:00
nubus	…
nvdimm	libnvdimm, pmem: fix size trim in pmem_direct_access()	2015-11-12 09:55:23 -08:00
nvme	nvme: add missing unmaps in nvme_queue_rq	2015-11-24 15:24:05 -07:00
nvmem	…
of	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
oprofile	…
parisc	pci: remove pci_dma_supported	2015-11-10 16:32:11 -08:00
parport	…
pci	ARM/PCI: Move align_resource function pointer to pci_host_bridge structure	2015-11-25 13:23:38 -06:00
pcmcia	…
perf	arm64 updates for 4.4:	2015-11-04 14:47:13 -08:00
phy	phy: qcom-ufs: fix build error when the component is built as a module	2015-11-09 17:44:24 -05:00
pinctrl	This is the bulk of GPIO changes for v4.4:	2015-11-02 12:59:12 -08:00
platform	platform/chrome: Branch for v4.4	2015-11-13 21:53:18 -08:00
pnp	…
power	- New Device Support	2015-11-06 10:23:50 -08:00
powercap	…
pps	…
ps3	…
ptp	…
pwm	pwm: Changes for v4.4-rc1	2015-11-11 09:16:10 -08:00
rapidio	…
ras	…
regulator	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
remoteproc	…
reset	…
rpmsg	…
rtc	rtc: ds1307: fix alarm reading at probe time	2015-11-26 18:11:26 +01:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2015-11-18 08:59:29 -08:00
sbus	…
scsi	qla2xxx: Fix regression introduced by target configFS changes	2015-11-28 19:52:10 -08:00
sfi	…
sh	drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI	2015-11-17 02:12:46 +09:00
sn	…
soc	Few Keystone fixes for 4.4-rcx	2015-11-25 23:48:12 +01:00
spi	Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/ti-qspi' and 'spi/topic/txx9' into spi-next	2015-11-04 11:02:16 +00:00
spmi	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
ssb	ssb: add Kconfig entry for compiling SoC related code	2015-10-28 21:05:21 +02:00
staging	Revert "Staging: wilc1000: coreconfigurator: Drop unneeded wrapper functions"	2015-11-18 13:22:44 -08:00
target	target/stat: print full t10_wwn.model buffer	2015-11-28 21:23:13 -08:00
tc	…
thermal	imx: thermal: use CPU temperature grade info for thresholds	2015-11-23 16:38:40 -08:00
thunderbolt	…
tty	serial: export fsl8250_handle_irq	2015-11-20 16:19:54 -08:00
uio	…
usb	usblp: do not set TASK_INTERRUPTIBLE before lock	2015-11-19 16:31:42 -08:00
uwb	driver core update for 4.4-rc1	2015-11-04 21:50:37 -08:00
vfio	VFIO updates for v4.4-rc1	2015-11-13 17:05:32 -08:00
vhost	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
video	fbdev changes for 4.4	2015-11-10 10:00:09 -08:00
virt	…
virtio	…
vlynq	…
vme	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
w1	power supply and reset changes for the v4.4 series	2015-11-05 12:28:15 -08:00
watchdog	watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog	2015-11-23 09:00:09 +01:00
xen	xen: bug fixes for 4.4-rc2	2015-11-26 11:42:25 -08:00
zorro	…
Kconfig	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
Makefile	null_blk: register as a LightNVM device	2015-11-16 15:22:28 -07:00