Chaitanya Kulkarni a6f0788ec2 block: add support for REQ_OP_WRITE_ZEROES ... This adds a new block layer operation to zero out a range of LBAs. This allows to implement zeroing for devices that don't use either discard with a predictable zero pattern or WRITE SAME of zeroes. The prominent example of that is NVMe with the Write Zeroes command, but in the future, this should also help with improving the way zeroing discards work. For this operation, suitable entry is exported in sysfs which indicate the number of maximum bytes allowed in one write zeroes operation by the device. Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>		2016-12-01 07:58:40 -07:00
..
80211	docs-rst: sphinxify 802.11 documentation	2016-10-11 16:19:17 -06:00
ABI	block: add support for REQ_OP_WRITE_ZEROES	2016-12-01 07:58:40 -07:00
DocBook	A single commit converting the mac80211 DocBook template over to Sphinx.	2016-10-14 14:11:22 -07:00
EDID	…
PCI	PCI changes for the v4.9 merge window:	2016-10-07 11:46:37 -07:00
RCU	kthread: kthread worker API cleanup	2016-10-11 15:06:33 -07:00
accounting	tools: move accounting tool from Documentation	2016-09-23 13:07:15 -06:00
acpi	Merge branches 'acpi-button', 'acpi-battery' and 'acpi-doc'	2016-10-02 01:40:20 +02:00
aoe	…
arm	linux-kselftest-4.9-rc1-update	2016-10-14 15:17:12 -07:00
arm64	arm64 updates for 4.9:	2016-10-03 08:58:35 -07:00
auxdisplay	samples: move auxdisplay example code from Documentation	2016-09-23 11:52:32 -06:00
backlight	…
blackfin	samples: move blackfin gptimers-example from Documentation	2016-10-10 07:12:02 -06:00
block	blk-wbt: allow reset of default latency through sysfs	2016-11-28 10:27:03 -07:00
blockdev	zram: cosmetic: cleanup documentation	2016-07-26 16:19:19 -07:00
bus-devices	…
cdrom	…
cgroup-v1	Three fixes for the docs build, including removing an annoying warning on	2016-08-07 10:23:17 -04:00
cma	…
connector	…
console	…
cpu-freq	cpufreq-stats: Minor documentation fix	2016-09-08 23:05:07 +02:00
cpuidle	…
cris	…
crypto	…
dev-tools	mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping	2016-10-11 15:06:33 -07:00
development-process	docs-rst: add inter-document cross references	2016-09-21 15:43:09 -06:00
device-mapper	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
devicetree	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2016-10-15 09:26:12 -07:00
dmaengine	dmaengine: documentation to the new callback mechanism	2016-08-08 08:11:42 +05:30
driver-api	docs: Don't format internal MPT docs	2016-09-06 09:15:48 -06:00
driver-model	power supply and reset changes for the v4.9 series	2016-10-06 18:21:15 -07:00
early-userspace	…
extcon	…
fault-injection	…
fb	…
features	Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API	2016-10-13 17:19:19 +02:00
filesystems	linux-kselftest-4.9-rc1-update	2016-10-14 15:17:12 -07:00
firmware_class	…
fmc	…
fpga	…
frv	…
gpio	Merge branch 'gpio-irq-validmask' of /home/linus/linux-pinctrl into devel	2016-09-23 14:51:18 +02:00
gpu	Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux	2016-10-11 18:12:22 -07:00
hid	Documentation: HID: Intel ISH HID document	2016-08-17 11:13:07 +02:00
hwmon	hwmon: (max6650) Allow fan shutdown and initial rpm target	2016-09-08 21:34:17 -07:00
i2c	Documentation: i2c: slave-interface: add note for driver development	2016-09-08 16:57:14 +02:00
ia64	selftests: move ia64 tests from Documentation/ia64	2016-09-20 09:58:12 -06:00
ide	…
iio	iio: Documentation: Correct the path used to create triggers.	2016-10-01 00:49:58 -06:00
infiniband	IB/hfi1: Document new sysfs entries for hfi1 driver	2016-10-02 08:42:19 -04:00
input	Input: ALPS - add V8 protocol documentation	2016-10-04 11:47:02 -07:00
ioctl	doc: ioctl: Add some clarifications to botching-up-ioctls	2016-09-06 06:00:22 -06:00
isdn	…
ja_JP	…
kbuild	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2016-10-14 14:26:58 -07:00
kdump	Documentation: kdump: Add description of enable multi-cpus support	2016-09-20 18:02:54 -06:00
ko_KR	locking/Documentation: Add Korean translation	2016-08-12 08:24:14 +02:00
laptops	tools: move laptops dslm tool from Documentation	2016-09-23 13:07:21 -06:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds	2016-10-04 10:25:53 -07:00
livepatch	Documentation: livepatch: add section about arch-specific code	2016-08-18 23:41:56 +02:00
locking	locking/lglock: Remove lglock implementation	2016-09-22 15:25:56 +02:00
m68k	…
media	Linux 4.8	2016-10-05 16:43:53 -03:00
memory-devices	…
metag	…
mic	samples: move mic/mpssd example code from Documentation	2016-09-20 12:38:48 -06:00
mips	…
misc-devices	samples: move misc-devices/mei example code from Documentation	2016-09-23 11:51:43 -06:00
mmc	mmc: core: Extend sysfs with DSR register	2016-07-25 10:34:51 +02:00
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	linux-kselftest-4.9-rc1-update	2016-10-14 15:17:12 -07:00
nfc	…
nios2	…
nvdimm	…
nvmem	…
parisc	…
pcmcia	tools: move pcmcia crc32hash tool from Documentation	2016-09-23 13:07:27 -06:00
perf	perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver	2016-09-15 11:20:55 -07:00
phy	…
platform	…
power	power supply and reset changes for the v4.9 series	2016-10-06 18:21:15 -07:00
powerpc	powerpc updates for 4.9	2016-10-07 20:19:31 -07:00
pps	…
prctl	selftests: move prctl tests from Documentation/prctl	2016-09-20 09:09:09 -06:00
pti	…
ptp	selftests: move ptp tests from Documentation/ptp	2016-09-20 09:54:38 -06:00
rapidio	rapidio/documentation/mport_cdev: add missing parameter description	2016-09-01 17:52:02 -07:00
s390	…
scheduler	sched/deadline: Document behavior of sched_yield()	2016-09-10 11:17:41 +02:00
scsi	scsi: g_NCR5380: Stop using scsi_module.c	2016-09-29 21:52:43 -04:00
security	Some big changes this month, headlined by the addition of a new formatted	2016-07-26 13:05:11 -07:00
serial	Documentation: rs485: Do not define manually the ioctl	2016-08-18 11:08:33 -06:00
sh	…
sound	ASoC: Updates for v4.8	2016-07-26 10:35:31 +02:00
sphinx	Merge tag 'docs-next' of git://git.lwn.net/linux.git into patchwork	2016-09-19 16:36:41 -03:00
sphinx-static	This is the documentation update pull for the 4.9 merge window.	2016-10-04 13:54:07 -07:00
spi	Doc: update 00-INDEX files to reflect the runnable code move	2016-10-10 07:12:09 -06:00
sysctl	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
target	…
thermal	thermal: Add support for hardware-tracked trip points	2016-09-27 14:02:16 +08:00
timers	Doc: update 00-INDEX files to reflect the runnable code move	2016-10-10 07:12:09 -06:00
tpm	…
trace	This release cycle is rather small. Just a few fixes to tracing.	2016-10-06 11:48:41 -07:00
usb	…
virtual	KVM: arm64: Require in-kernel irqchip for PMU support	2016-09-27 18:57:07 +02:00
vm	Three fixes for the docs build, including removing an annoying warning on	2016-08-07 10:23:17 -04:00
w1	…
watchdog	linux-kselftest-4.9-rc1-update	2016-10-14 15:17:12 -07:00
wimax	…
x86	Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-10-10 11:01:51 -07:00
xtensa	xtensa: cleanup MMU setup and kernel layout macros	2016-07-24 06:33:58 +03:00
zh_CN	docs: deprecate kernel-doc-nano-HOWTO.txt	2016-07-20 16:45:37 -06:00
.gitignore	…
00-INDEX	Doc: update 00-INDEX files to reflect the runnable code move	2016-10-10 07:12:09 -06:00
BUG-HUNTING	…
Changes	docs: Clean up bare :: lines	2016-09-20 18:46:36 -06:00
CodeOfConflict	URL changed for Linux Foundation TAB	2016-10-01 00:57:13 -06:00
CodingStyle	docs: Remove space-before-label guidance from CodingStyle	2016-09-21 15:53:31 -06:00
DMA-API-HOWTO.txt	Documentation: DMA-API-HOWTO: Fix a typo	2016-09-20 17:58:46 -06:00
DMA-API.txt	dma-mapping: add dma_{map,unmap}_resource	2016-09-26 22:16:41 +05:30
DMA-ISA-LPC.txt	…
DMA-attributes.txt	dma-mapping: introduce the DMA_ATTR_NO_WARN attribute	2016-10-11 15:06:32 -07:00
HOWTO	docs: Clean up bare :: lines	2016-09-20 18:46:36 -06:00
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	samples: move blackfin gptimers-example from Documentation	2016-10-10 07:12:02 -06:00
Makefile.sphinx	doc-rst: generic way to build PDF of sub-folders	2016-09-01 08:49:23 -06:00
ManagementStyle	Documentation/HOWTO: add cross-references to other documents	2016-09-20 18:41:04 -06:00
SAK.txt	…
SM501.txt	…
SecurityBugs	Documentation/HOWTO: add cross-references to other documents	2016-09-20 18:41:04 -06:00
SubmitChecklist	docs-rst: add inter-document cross references	2016-09-21 15:43:09 -06:00
SubmittingDrivers	docs-rst: add inter-document cross references	2016-09-21 15:43:09 -06:00
SubmittingPatches	docs-rst: add inter-document cross references	2016-09-21 15:43:09 -06:00
VGA-softcursor.txt	…
adding-syscalls.txt	…
applying-patches.txt	docs: Clean up bare :: lines	2016-09-20 18:46:36 -06:00
assoc_array.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
bcache.txt	…
binfmt_misc.txt	…
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
cachetlb.txt	…
cgroup-v2.txt	…
circular-buffers.txt	…
clk.txt	Documentation: clk: update file names containing referenced structures	2016-08-14 12:12:36 -06:00
conf.py	media updates for v4.9-rc1	2016-10-11 13:22:22 -07:00
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
devices.txt	…
digsig.txt	…
dma-buf-sharing.txt	…
docutils.conf	doc-rst: add docutils config file	2016-08-14 11:52:40 -06:00
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	…
efi-stub.txt	…
eisa.txt	…
email-clients.txt	Documentation/email-clients.txt: convert it to ReST markup	2016-09-21 15:41:50 -06:00
flexible-arrays.txt	…
futex-requeue-pi.txt	…
gcc-plugins.txt	…
highuid.txt	…
hw_random.txt	…
hwspinlock.txt	…
index.rst	docs-rst: sphinxify 802.11 documentation	2016-10-11 16:19:17 -06:00
init.txt	…
initrd.txt	…
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isa.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	docs: deprecate kernel-doc-nano-HOWTO.txt	2016-07-20 16:45:37 -06:00
kernel-docs.txt	Documentation/kernel-docs.txt: reorder based on timestamp	2016-09-20 18:54:42 -06:00
kernel-documentation.rst	This is the documentation update pull for the 4.9 merge window.	2016-10-04 13:54:07 -07:00
kernel-parameters.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2016-10-14 13:19:30 -07:00
kernel-per-CPU-kthreads.txt	Documenation: update cgroup's document path	2016-08-03 15:43:58 -06:00
kobject.txt	…
kprobes.txt	Documentation: kprobes: Document jprobes stack copying limitations	2016-08-15 10:19:11 -06:00
kref.txt	…
kselftest.txt	kselftest: kselftest documentation improvement	2016-09-20 08:58:27 -06:00
ldm.txt	…
local_ops.txt	…
lockup-watchdogs.txt	…
logo.gif	…
logo.txt	…
lzo.txt	…
magic-number.txt	…
mailbox.txt	…
md-cluster.txt	…
md.txt	…
memory-barriers.txt	locking/Documentation: Fix a typo of example result	2016-08-12 08:24:13 +02:00
memory-hotplug.txt	…
men-chameleon-bus.txt	…
module-signing.txt	Documentation/module-signing.txt: Note need for version info if reusing a key	2016-07-27 12:38:00 +09:30
mono.txt	…
nommu-mmap.txt	…
ntb.txt	…
numastat.txt	…
oops-tracing.txt	…
padata.txt	…
parport-lowlevel.txt	…
parport.txt	…
percpu-rw-semaphore.txt	…
phy.txt	…
pi-futex.txt	…
pinctrl.txt	…
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	…
pwm.txt	…
ramoops.txt	ramoops: use DT reserved-memory bindings	2016-08-05 11:21:36 -07:00
rbtree.txt	…
remoteproc.txt	remoteproc: Split driver and consumer dereferencing	2016-10-02 22:50:21 -07:00
rfkill.txt	…
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
smsc_ece1099.txt	…
stable_api_nonsense.txt	Documentation/HOWTO: add cross-references to other documents	2016-09-20 18:41:04 -06:00
stable_kernel_rules.txt	docs-rst: add inter-document cross references	2016-09-21 15:43:09 -06:00
static-keys.txt	jump_labels: Allow array initialisers	2016-09-07 09:41:11 +01:00
svga.txt	…
sync_file.txt	Documentation: add doc for sync_file_get_fence()	2016-08-11 15:33:24 +05:30
sysfs-rules.txt	…
sysrq.txt	…
this_cpu_ops.txt	…
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vfio.txt	…
video-output.txt	…
vme_api.txt	vme: Update documentation to match api	2016-08-31 13:20:16 +02:00
volatile-considered-harmful.txt	…
workqueue.txt	…
xillybus.txt	…
xz.txt	…
zorro.txt	…