linux/Documentation
Christoph Hellwig ef295ecf09 block: better op and flags encoding
Now that we don't need the common flags to overflow outside the range
of a 32-bit type we can encode them the same way for both the bio and
request fields.  This in addition allows us to place the operation
first (and make some room for more ops while we're at it) and to
stop having to shift around the operation values.

In addition this allows passing around only one value in the block layer
instead of two (and eventuall also in the file systems, but we can do
that later) and thus clean up a lot of code.

Last but not least this allows decreasing the size of the cmd_flags
field in struct request to 32-bits.  Various functions passing this
value could also be updated, but I'd like to avoid the churn for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-28 08:48:16 -06:00
..
80211 docs-rst: sphinxify 802.11 documentation 2016-10-11 16:19:17 -06:00
ABI blk-sysfs: Add 'chunk_sectors' to sysfs attributes 2016-10-18 10:02:02 -06:00
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 block: better op and flags encoding 2016-10-28 08:48:16 -06:00
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 samples: connector: from Documentation to samples directory 2016-04-28 07:47:35 -06:00
console
cpu-freq cpufreq-stats: Minor documentation fix 2016-09-08 23:05:07 +02:00
cpuidle
cris
crypto crypto: doc - Fix typo 2016-05-31 16:41:55 +08:00
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 Documentation: fb: fix spelling mistakes 2016-05-10 12:05:27 +03:00
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 Documentation: fix common spelling mistakes 2016-04-28 07:51:59 -06:00
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 isdn: i4l: move active-isdn drivers to staging 2016-03-05 15:00:38 -08:00
ja_JP Documentatio: HOWTO: remove regression postings info from translations 2016-04-16 10:49:08 -06:00
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 libnvdimm, btt: update the usage section in Documentation 2016-06-17 16:23:23 -07:00
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 Documentation: pps: fix spelling mistake 2016-04-28 07:23:59 -06:00
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 s390/Documentation: improve sort command for trace buffer 2016-06-13 15:58:23 +02:00
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 target: make close_session optional 2016-05-10 01:19:26 -07:00
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 tpm: Add documentation for the tpm_vtpm_proxy device driver 2016-06-25 17:26:35 +03:00
trace This release cycle is rather small. Just a few fixes to tracing. 2016-10-06 11:48:41 -07:00
usb Documentation: tiny typo fix in usb/gadget_multi.txt 2016-06-23 08:09:10 -06:00
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 w1: add ability to set (SRAM) and store (EEPROM) configuration for temp sensors like DS18B20 2016-05-01 14:37:49 -07:00
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 Add .pyc files to .gitignore 2016-06-30 13:07:33 -06:00
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 Documentation/IRQ-domain.txt: Document irq_domain_create_{linear, tree} 2016-03-31 00:32:59 -06:00
IRQ.txt
Intel-IOMMU.txt iommu/vt-d: Fix link to Intel IOMMU Specification 2016-01-29 12:32:12 +01:00
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 documentation: trivial typo: adding-syscalls.txt: s/statat/fstatat/ 2016-04-18 11:31:49 -06:00
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 bcache: documentation formatting, edited for clarity, stripe alignment notes 2016-06-23 07:58:38 -06:00
binfmt_misc.txt binfmt_misc: add F option description to documentation 2016-03-30 14:12:22 -07:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt Merge branch 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2016-03-21 10:05:13 -07:00
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 topology/sysfs: provide drawer id and siblings attributes 2016-06-13 15:58:27 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt Documentation: update the devices.txt documentation 2016-03-29 10:11:44 -07:00
digsig.txt
dma-buf-sharing.txt dma-buf: Update docs for SYNC ioctl 2016-03-21 09:26:45 +01:00
docutils.conf doc-rst: add docutils config file 2016-08-14 11:52:40 -06:00
dontdiff GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
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 GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
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 Documentation: Add ISA bus driver documentation 2016-05-02 09:32:04 -07:00
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 Documentation: lzo: fix spelling mistakes 2016-04-28 07:23:11 -06:00
magic-number.txt
mailbox.txt
md-cluster.txt md-cluster: change array_sectors and update size are not supported 2016-05-04 12:39:35 -07:00
md.txt Documentation: fix wrong value in md.txt 2016-06-23 08:08:36 -06:00
memory-barriers.txt locking/Documentation: Fix a typo of example result 2016-08-12 08:24:13 +02:00
memory-hotplug.txt memory_hotplug: introduce CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE 2016-05-19 19:12:14 -07:00
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 phy: core: Allow children node to be overridden 2016-04-29 16:39:39 +02:00
pi-futex.txt
pinctrl.txt pinctrl: Flag strict is a field in struct pinmux_ops 2016-06-23 10:50:10 +02:00
pnp.txt
preempt-locking.txt
printk-formats.txt mm, printk: introduce new format string for flags 2016-03-15 16:55:16 -07:00
pwm.txt pwm: Update documentation 2016-05-17 14:48:04 +02:00
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 rfkill: Add documentation about LED triggers 2016-02-24 09:13:12 +01:00
robust-futex-ABI.txt
robust-futexes.txt Documentation: robust-futexes: fix spelling mistakes 2016-04-28 07:26:41 -06:00
rpmsg.txt rpmsg: use module_rpmsg_driver in existing drivers and examples 2016-05-06 11:09:01 -07:00
rtc.txt rtc: implement a sysfs interface for clock offset 2016-03-14 17:08:16 +01:00
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 Doc: correct the location of sysrq.c 2016-04-28 08:02:36 -06:00
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 workqueue: Fix a typo in workqueue.txt 2016-07-06 02:37:38 -06:00
xillybus.txt Documentation: xillybus: fix spelling mistake 2016-04-28 07:44:54 -06:00
xz.txt
zorro.txt