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Name	Size	Permission
amba	[ DIR ]	drwxr-xr-x
atomic	[ DIR ]	drwxr-xr-x
avf	[ DIR ]	drwxr-xr-x
bcma	[ DIR ]	drwxr-xr-x
byteorder	[ DIR ]	drwxr-xr-x
can	[ DIR ]	drwxr-xr-x
ceph	[ DIR ]	drwxr-xr-x
clk	[ DIR ]	drwxr-xr-x
crush	[ DIR ]	drwxr-xr-x
decompress	[ DIR ]	drwxr-xr-x
device	[ DIR ]	drwxr-xr-x
dma	[ DIR ]	drwxr-xr-x
dsa	[ DIR ]	drwxr-xr-x
extcon	[ DIR ]	drwxr-xr-x
firmware	[ DIR ]	drwxr-xr-x
fpga	[ DIR ]	drwxr-xr-x
fsl	[ DIR ]	drwxr-xr-x
gpio	[ DIR ]	drwxr-xr-x
greybus	[ DIR ]	drwxr-xr-x
hsi	[ DIR ]	drwxr-xr-x
i3c	[ DIR ]	drwxr-xr-x
iio	[ DIR ]	drwxr-xr-x
input	[ DIR ]	drwxr-xr-x
irqchip	[ DIR ]	drwxr-xr-x
isdn	[ DIR ]	drwxr-xr-x
lockd	[ DIR ]	drwxr-xr-x
mailbox	[ DIR ]	drwxr-xr-x
mdio	[ DIR ]	drwxr-xr-x
mfd	[ DIR ]	drwxr-xr-x
mlx4	[ DIR ]	drwxr-xr-x
mlx5	[ DIR ]	drwxr-xr-x
mmc	[ DIR ]	drwxr-xr-x
mtd	[ DIR ]	drwxr-xr-x
mux	[ DIR ]	drwxr-xr-x
net	[ DIR ]	drwxr-xr-x
netfilter	[ DIR ]	drwxr-xr-x
netfilter_arp	[ DIR ]	drwxr-xr-x
netfilter_bridge	[ DIR ]	drwxr-xr-x
netfilter_ipv4	[ DIR ]	drwxr-xr-x
netfilter_ipv6	[ DIR ]	drwxr-xr-x
pcs	[ DIR ]	drwxr-xr-x
perf	[ DIR ]	drwxr-xr-x
phy	[ DIR ]	drwxr-xr-x
pinctrl	[ DIR ]	drwxr-xr-x
platform_data	[ DIR ]	drwxr-xr-x
power	[ DIR ]	drwxr-xr-x
qed	[ DIR ]	drwxr-xr-x
raid	[ DIR ]	drwxr-xr-x
regulator	[ DIR ]	drwxr-xr-x
remoteproc	[ DIR ]	drwxr-xr-x
reset	[ DIR ]	drwxr-xr-x
rpmsg	[ DIR ]	drwxr-xr-x
rtc	[ DIR ]	drwxr-xr-x
sched	[ DIR ]	drwxr-xr-x
soc	[ DIR ]	drwxr-xr-x
soundwire	[ DIR ]	drwxr-xr-x
spi	[ DIR ]	drwxr-xr-x
ssb	[ DIR ]	drwxr-xr-x
sunrpc	[ DIR ]	drwxr-xr-x
surface_aggregator	[ DIR ]	drwxr-xr-x
ulpi	[ DIR ]	drwxr-xr-x
unaligned	[ DIR ]	drwxr-xr-x
usb	[ DIR ]	drwxr-xr-x
8250_pci.h	1.01 KB	-rw-r--r--
a.out.h	354 B	-rw-r--r--
acct.h	2.49 KB	-rw-r--r--
acpi.h	39.5 KB	-rw-r--r--
acpi_dma.h	3.08 KB	-rw-r--r--
acpi_iort.h	2.27 KB	-rw-r--r--
acpi_mdio.h	631 B	-rw-r--r--
acpi_pmtmr.h	674 B	-rw-r--r--
acpi_viot.h	389 B	-rw-r--r--
adb.h	1.79 KB	-rw-r--r--
adfs_fs.h	574 B	-rw-r--r--
adreno-smmu-priv.h	2.74 KB	-rw-r--r--
adxl.h	310 B	-rw-r--r--
aer.h	1.78 KB	-rw-r--r--
agp_backend.h	3.45 KB	-rw-r--r--
agpgart.h	3.79 KB	-rw-r--r--
ahci-remap.h	607 B	-rw-r--r--
ahci_platform.h	1.54 KB	-rw-r--r--
aio.h	651 B	-rw-r--r--
alarmtimer.h	1.94 KB	-rw-r--r--
alcor_pci.h	8.83 KB	-rw-r--r--
align.h	552 B	-rw-r--r--
altera_jtaguart.h	379 B	-rw-r--r--
altera_uart.h	397 B	-rw-r--r--
amd-iommu.h	6.18 KB	-rw-r--r--
anon_inodes.h	670 B	-rw-r--r--
apm-emulation.h	1.56 KB	-rw-r--r--
apm_bios.h	2.25 KB	-rw-r--r--
apple-gmux.h	918 B	-rw-r--r--
apple_bl.h	498 B	-rw-r--r--
arch_topology.h	2.49 KB	-rw-r--r--
arm-cci.h	1.36 KB	-rw-r--r--
arm-smccc.h	17.7 KB	-rw-r--r--
arm_ffa.h	7.36 KB	-rw-r--r--
arm_sdei.h	2.51 KB	-rw-r--r--
armada-37xx-rwtm-mailbox.h	431 B	-rw-r--r--
ascii85.h	555 B	-rw-r--r--
asn1.h	1.79 KB	-rw-r--r--
asn1_ber_bytecode.h	2.52 KB	-rw-r--r--
asn1_decoder.h	468 B	-rw-r--r--
asn1_encoder.h	1006 B	-rw-r--r--
assoc_array.h	2.88 KB	-rw-r--r--
assoc_array_priv.h	5.3 KB	-rw-r--r--
async.h	4.26 KB	-rw-r--r--
async_tx.h	6.7 KB	-rw-r--r--
ata.h	32.52 KB	-rw-r--r--
ata_platform.h	749 B	-rw-r--r--
atalk.h	4.48 KB	-rw-r--r--
ath9k_platform.h	1.44 KB	-rw-r--r--
atm.h	287 B	-rw-r--r--
atm_tcp.h	511 B	-rw-r--r--
atmdev.h	9.99 KB	-rw-r--r--
atmel-isc-media.h	2.07 KB	-rw-r--r--
atmel-mci.h	1.4 KB	-rw-r--r--
atmel-ssc.h	9.74 KB	-rw-r--r--
atmel_pdc.h	1.26 KB	-rw-r--r--
atomic.h	2.58 KB	-rw-r--r--
attribute_container.h	2.74 KB	-rw-r--r--
audit.h	19.45 KB	-rw-r--r--
auto_dev-ioctl.h	296 B	-rw-r--r--
auto_fs.h	278 B	-rw-r--r--
auxiliary_bus.h	2.48 KB	-rw-r--r--
auxvec.h	304 B	-rw-r--r--
average.h	2.42 KB	-rw-r--r--
backing-dev-defs.h	8.55 KB	-rw-r--r--
backing-dev.h	11.81 KB	-rw-r--r--
backlight.h	13.13 KB	-rw-r--r--
badblocks.h	2.14 KB	-rw-r--r--
balloon_compaction.h	6.59 KB	-rw-r--r--
bcd.h	559 B	-rw-r--r--
bch.h	2.1 KB	-rw-r--r--
bcm47xx_nvram.h	1.01 KB	-rw-r--r--
bcm47xx_sprom.h	616 B	-rw-r--r--
bcm47xx_wdt.h	555 B	-rw-r--r--
bcm963xx_nvram.h	2.96 KB	-rw-r--r--
bcm963xx_tag.h	3.6 KB	-rw-r--r--
binfmts.h	4.48 KB	-rw-r--r--
bio.h	19.64 KB	-rw-r--r--
bit_spinlock.h	2.3 KB	-rw-r--r--
bitfield.h	4.75 KB	-rw-r--r--
bitmap.h	21.62 KB	-rw-r--r--
bitops.h	8.53 KB	-rw-r--r--
bitrev.h	2.53 KB	-rw-r--r--
bits.h	1.35 KB	-rw-r--r--
blk-cgroup.h	21.4 KB	-rw-r--r--
blk-crypto.h	4.02 KB	-rw-r--r--
blk-mq-pci.h	269 B	-rw-r--r--
blk-mq-rdma.h	273 B	-rw-r--r--
blk-mq-virtio.h	293 B	-rw-r--r--
blk-mq.h	19.37 KB	-rw-r--r--
blk-pm.h	708 B	-rw-r--r--
blk_types.h	15.42 KB	-rw-r--r--
blkdev.h	56.35 KB	-rw-r--r--
blkpg.h	436 B	-rw-r--r--
blktrace_api.h	3.77 KB	-rw-r--r--
blockgroup_lock.h	810 B	-rw-r--r--
bma150.h	1.26 KB	-rw-r--r--
bootconfig.h	8.51 KB	-rw-r--r--
bootmem_info.h	1.61 KB	-rw-r--r--
bottom_half.h	974 B	-rw-r--r--
bpf-cgroup.h	18.52 KB	-rw-r--r--
bpf-netns.h	1.52 KB	-rw-r--r--
bpf.h	69.46 KB	-rw-r--r--
bpf_lirc.h	698 B	-rw-r--r--
bpf_local_storage.h	5.23 KB	-rw-r--r--
bpf_lsm.h	1.42 KB	-rw-r--r--
bpf_trace.h	166 B	-rw-r--r--
bpf_types.h	5.41 KB	-rw-r--r--
bpf_verifier.h	18.45 KB	-rw-r--r--
bpfilter.h	791 B	-rw-r--r--
bpfptr.h	1.83 KB	-rw-r--r--
brcmphy.h	13.67 KB	-rw-r--r--
bsearch.h	624 B	-rw-r--r--
bsg-lib.h	1.72 KB	-rw-r--r--
bsg.h	492 B	-rw-r--r--
btf.h	7.26 KB	-rw-r--r--
btf_ids.h	5.32 KB	-rw-r--r--
btree-128.h	2.67 KB	-rw-r--r--
btree-type.h	3.9 KB	-rw-r--r--
btree.h	6.84 KB	-rw-r--r--
btrfs.h	145 B	-rw-r--r--
buffer_head.h	13.54 KB	-rw-r--r--
bug.h	2.17 KB	-rw-r--r--
build-salt.h	375 B	-rw-r--r--
build_bug.h	2.76 KB	-rw-r--r--
buildid.h	561 B	-rw-r--r--
bvec.h	6.17 KB	-rw-r--r--
c2port.h	1.35 KB	-rw-r--r--
cache.h	2.55 KB	-rw-r--r--
cacheinfo.h	3.75 KB	-rw-r--r--
capability.h	8.29 KB	-rw-r--r--
cb710.h	5.36 KB	-rw-r--r--
cc_platform.h	2.32 KB	-rw-r--r--
cciss_ioctl.h	1.03 KB	-rw-r--r--
ccp.h	18.14 KB	-rw-r--r--
cdev.h	845 B	-rw-r--r--
cdrom.h	8.98 KB	-rw-r--r--
cfag12864b.h	1.47 KB	-rw-r--r--
cfi.h	1.13 KB	-rw-r--r--
cgroup-defs.h	24.1 KB	-rw-r--r--
cgroup.h	28.19 KB	-rw-r--r--
cgroup_rdma.h	1.18 KB	-rw-r--r--
cgroup_subsys.h	1.23 KB	-rw-r--r--
circ_buf.h	1.09 KB	-rw-r--r--
cleancache.h	3.89 KB	-rw-r--r--
clk-provider.h	56.38 KB	-rw-r--r--
clk.h	29.59 KB	-rw-r--r--
clkdev.h	1.29 KB	-rw-r--r--
clockchips.h	7.27 KB	-rw-r--r--
clocksource.h	9.57 KB	-rw-r--r--
clocksource_ids.h	247 B	-rw-r--r--
cm4000_cs.h	199 B	-rw-r--r--
cma.h	1.59 KB	-rw-r--r--
cn_proc.h	1.85 KB	-rw-r--r--
cnt32_to_63.h	3.46 KB	-rw-r--r--
coda.h	2.16 KB	-rw-r--r--
compaction.h	7.15 KB	-rw-r--r--
compat.h	31.35 KB	-rw-r--r--
compiler-clang.h	2.27 KB	-rw-r--r--
compiler-gcc.h	4.44 KB	-rw-r--r--
compiler-intel.h	949 B	-rw-r--r--
compiler-version.h	517 B	-rw-r--r--
compiler.h	7.78 KB	-rw-r--r--
compiler_attributes.h	12.15 KB	-rw-r--r--
compiler_types.h	10.46 KB	-rw-r--r--
completion.h	4 KB	-rw-r--r--
component.h	4.07 KB	-rw-r--r--
configfs.h	8.48 KB	-rw-r--r--
connector.h	3.83 KB	-rw-r--r--
console.h	7.28 KB	-rw-r--r--
console_struct.h	7.08 KB	-rw-r--r--
consolemap.h	1.05 KB	-rw-r--r--
const.h	421 B	-rw-r--r--
container.h	610 B	-rw-r--r--
context_tracking.h	3.28 KB	-rw-r--r--
context_tracking_state.h	1.58 KB	-rw-r--r--
cookie.h	1.22 KB	-rw-r--r--
cordic.h	2.08 KB	-rw-r--r--
coredump.h	1.23 KB	-rw-r--r--
coresight-pmu.h	1.32 KB	-rw-r--r--
coresight-stm.h	152 B	-rw-r--r--
coresight.h	17.81 KB	-rw-r--r--
count_zeros.h	1.42 KB	-rw-r--r--
counter.h	15.13 KB	-rw-r--r--
counter_enum.h	1.43 KB	-rw-r--r--
cper.h	16.41 KB	-rw-r--r--
cpu.h	7.31 KB	-rw-r--r--
cpu_cooling.h	1.86 KB	-rw-r--r--
cpu_pm.h	2.38 KB	-rw-r--r--
cpu_rmap.h	1.68 KB	-rw-r--r--
cpufeature.h	1.71 KB	-rw-r--r--
cpufreq.h	32.57 KB	-rw-r--r--
cpuhotplug.h	16.47 KB	-rw-r--r--
cpuidle.h	10.27 KB	-rw-r--r--
cpuidle_haltpoll.h	312 B	-rw-r--r--
cpumask.h	28.61 KB	-rw-r--r--
cpuset.h	7.34 KB	-rw-r--r--
crash_core.h	3.38 KB	-rw-r--r--
crash_dump.h	4.05 KB	-rw-r--r--
crc-ccitt.h	609 B	-rw-r--r--
crc-itu-t.h	531 B	-rw-r--r--
crc-t10dif.h	453 B	-rw-r--r--
crc16.h	540 B	-rw-r--r--
crc32.h	2.83 KB	-rw-r--r--
crc32c.h	331 B	-rw-r--r--
crc32poly.h	610 B	-rw-r--r--
crc4.h	192 B	-rw-r--r--
crc64.h	280 B	-rw-r--r--
crc7.h	316 B	-rw-r--r--
crc8.h	3.66 KB	-rw-r--r--
cred.h	12.48 KB	-rw-r--r--
crypto.h	27.08 KB	-rw-r--r--
cs5535.h	6.13 KB	-rw-r--r--
ctype.h	1.87 KB	-rw-r--r--
cuda.h	613 B	-rw-r--r--
damon.h	10.35 KB	-rw-r--r--
dasd_mod.h	204 B	-rw-r--r--
davinci_emac.h	1.05 KB	-rw-r--r--
dax.h	6.56 KB	-rw-r--r--
dca.h	1.88 KB	-rw-r--r--
dcache.h	18.63 KB	-rw-r--r--
dccp.h	10.73 KB	-rw-r--r--
debug_locks.h	1.59 KB	-rw-r--r--
debugfs.h	11.22 KB	-rw-r--r--
debugobjects.h	3.99 KB	-rw-r--r--
delay.h	2.43 KB	-rw-r--r--
delayacct.h	5.45 KB	-rw-r--r--
delayed_call.h	709 B	-rw-r--r--
dev_printk.h	9.05 KB	-rw-r--r--
devcoredump.h	2.21 KB	-rw-r--r--
devfreq-event.h	5.95 KB	-rw-r--r--
devfreq.h	13.98 KB	-rw-r--r--
devfreq_cooling.h	2.7 KB	-rw-r--r--
device-mapper.h	18.92 KB	-rw-r--r--
device.h	32.89 KB	-rw-r--r--
device_cgroup.h	1.57 KB	-rw-r--r--
devm-helpers.h	2.68 KB	-rw-r--r--
devpts_fs.h	1.13 KB	-rw-r--r--
dfl.h	2.38 KB	-rw-r--r--
digsig.h	1.18 KB	-rw-r--r--
dim.h	9.13 KB	-rw-r--r--
dio.h	10.76 KB	-rw-r--r--
dirent.h	215 B	-rw-r--r--
dlm.h	5.86 KB	-rw-r--r--
dlm_plock.h	532 B	-rw-r--r--
dm-bufio.h	4.88 KB	-rw-r--r--
dm-dirty-log.h	3.94 KB	-rw-r--r--
dm-io.h	1.93 KB	-rw-r--r--
dm-kcopyd.h	2.94 KB	-rw-r--r--
dm-region-hash.h	3.11 KB	-rw-r--r--
dm9000.h	987 B	-rw-r--r--
dma-buf-map.h	8.12 KB	-rw-r--r--
dma-buf.h	20.47 KB	-rw-r--r--
dma-direct.h	3.59 KB	-rw-r--r--
dma-direction.h	407 B	-rw-r--r--
dma-fence-array.h	2.14 KB	-rw-r--r--
dma-fence-chain.h	3.07 KB	-rw-r--r--
dma-fence.h	20.25 KB	-rw-r--r--
dma-heap.h	1.58 KB	-rw-r--r--
dma-iommu.h	2.21 KB	-rw-r--r--
dma-map-ops.h	12.73 KB	-rw-r--r--
dma-mapping.h	19.81 KB	-rw-r--r--
dma-resv.h	9.05 KB	-rw-r--r--
dmaengine.h	53.53 KB	-rw-r--r--
dmapool.h	1.79 KB	-rw-r--r--
dmar.h	7.74 KB	-rw-r--r--
dmi.h	4.27 KB	-rw-r--r--
dnotify.h	1.02 KB	-rw-r--r--
dns_resolver.h	1.36 KB	-rw-r--r--
dqblk_qtree.h	2.19 KB	-rw-r--r--
dqblk_v1.h	327 B	-rw-r--r--
dqblk_v2.h	406 B	-rw-r--r--
drbd.h	10.07 KB	-rw-r--r--
drbd_genl.h	21.49 KB	-rw-r--r--
drbd_genl_api.h	1.77 KB	-rw-r--r--
drbd_limits.h	7.82 KB	-rw-r--r--
ds2782_battery.h	158 B	-rw-r--r--
dtlk.h	3.5 KB	-rw-r--r--
dtpm.h	1.64 KB	-rw-r--r--
dw_apb_timer.h	1.53 KB	-rw-r--r--
dynamic_debug.h	6.6 KB	-rw-r--r--
dynamic_queue_limits.h	3.72 KB	-rw-r--r--
earlycpio.h	359 B	-rw-r--r--
ecryptfs.h	3.82 KB	-rw-r--r--
edac.h	19.46 KB	-rw-r--r--
edd.h	1.05 KB	-rw-r--r--
eeprom_93cx6.h	2.31 KB	-rw-r--r--
eeprom_93xx46.h	1.04 KB	-rw-r--r--
efi-bgrt.h	644 B	-rw-r--r--
efi.h	42.25 KB	-rw-r--r--
efi_embedded_fw.h	1.04 KB	-rw-r--r--
efs_vh.h	1.55 KB	-rw-r--r--
eisa.h	2.96 KB	-rw-r--r--
elevator.h	5.52 KB	-rw-r--r--
elf-fdpic.h	1.98 KB	-rw-r--r--
elf-randomize.h	583 B	-rw-r--r--
elf.h	2.96 KB	-rw-r--r--
elfcore-compat.h	1.27 KB	-rw-r--r--
elfcore.h	4.11 KB	-rw-r--r--
elfnote-lto.h	314 B	-rw-r--r--
elfnote.h	3.54 KB	-rw-r--r--
enclosure.h	4.02 KB	-rw-r--r--
energy_model.h	8.17 KB	-rw-r--r--
entry-common.h	16.95 KB	-rw-r--r--
entry-kvm.h	2.75 KB	-rw-r--r--
err.h	1.49 KB	-rw-r--r--
errname.h	283 B	-rw-r--r--
errno.h	1.45 KB	-rw-r--r--
error-injection.h	607 B	-rw-r--r--
errqueue.h	524 B	-rw-r--r--
errseq.h	382 B	-rw-r--r--
etherdevice.h	16.41 KB	-rw-r--r--
ethtool.h	31.72 KB	-rw-r--r--
ethtool_netlink.h	1.98 KB	-rw-r--r--
eventfd.h	2.1 KB	-rw-r--r--
eventpoll.h	2.4 KB	-rw-r--r--
evm.h	3.42 KB	-rw-r--r--
export.h	5.24 KB	-rw-r--r--
exportfs.h	8.25 KB	-rw-r--r--
ext2_fs.h	967 B	-rw-r--r--
extable.h	1.28 KB	-rw-r--r--
extcon-provider.h	3.83 KB	-rw-r--r--
extcon.h	10.17 KB	-rw-r--r--
f2fs_fs.h	19 KB	-rw-r--r--
f75375s.h	541 B	-rw-r--r--
falloc.h	1.59 KB	-rw-r--r--
fanotify.h	3.85 KB	-rw-r--r--
fault-inject-usercopy.h	496 B	-rw-r--r--
fault-inject.h	1.93 KB	-rw-r--r--
fb.h	27.83 KB	-rw-r--r--
fbcon.h	1.88 KB	-rw-r--r--
fcdevice.h	774 B	-rw-r--r--
fcntl.h	1.66 KB	-rw-r--r--
fd.h	490 B	-rw-r--r--
fddidevice.h	833 B	-rw-r--r--
fdtable.h	3.58 KB	-rw-r--r--
fec.h	463 B	-rw-r--r--
fiemap.h	713 B	-rw-r--r--
file.h	2.89 KB	-rw-r--r--
fileattr.h	1.91 KB	-rw-r--r--
filter.h	42.08 KB	-rw-r--r--
fips.h	303 B	-rw-r--r--
firewire.h	13.4 KB	-rw-r--r--
firmware-map.h	959 B	-rw-r--r--
firmware.h	3.27 KB	-rw-r--r--
fixp-arith.h	4.19 KB	-rw-r--r--
flat.h	2.57 KB	-rw-r--r--
flex_proportions.h	2.81 KB	-rw-r--r--
font.h	1.67 KB	-rw-r--r--
fortify-string.h	9.11 KB	-rw-r--r--
freelist.h	3.8 KB	-rw-r--r--
freezer.h	8.98 KB	-rw-r--r--
frontswap.h	3.04 KB	-rw-r--r--
fs.h	120.45 KB	-rw-r--r--
fs_context.h	8.68 KB	-rw-r--r--
fs_enet_pd.h	3.38 KB	-rw-r--r--
fs_parser.h	4.44 KB	-rw-r--r--
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fs_stack.h	811 B	-rw-r--r--
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fsnotify.h	8.85 KB	-rw-r--r--
fsnotify_backend.h	22.93 KB	-rw-r--r--
fsverity.h	6.75 KB	-rw-r--r--
ftrace.h	34.75 KB	-rw-r--r--
ftrace_irq.h	884 B	-rw-r--r--
futex.h	2.44 KB	-rw-r--r--
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fwnode_mdio.h	858 B	-rw-r--r--
gameport.h	5.42 KB	-rw-r--r--
gcd.h	193 B	-rw-r--r--
genalloc.h	7.68 KB	-rw-r--r--
generic-radix-tree.h	6.35 KB	-rw-r--r--
genetlink.h	589 B	-rw-r--r--
genhd.h	9.23 KB	-rw-r--r--
genl_magic_func.h	11.53 KB	-rw-r--r--
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getcpu.h	641 B	-rw-r--r--
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glob.h	256 B	-rw-r--r--
gnss.h	1.56 KB	-rw-r--r--
goldfish.h	762 B	-rw-r--r--
gpio-pxa.h	571 B	-rw-r--r--
gpio.h	5.3 KB	-rw-r--r--
gpio_keys.h	1.74 KB	-rw-r--r--
greybus.h	4.14 KB	-rw-r--r--
hardirq.h	3.43 KB	-rw-r--r--
hash.h	3 KB	-rw-r--r--
hashtable.h	6.67 KB	-rw-r--r--
hdlc.h	3.19 KB	-rw-r--r--
hdlcdrv.h	6.32 KB	-rw-r--r--
hdmi.h	12.41 KB	-rw-r--r--
hid-debug.h	1.42 KB	-rw-r--r--
hid-roccat.h	484 B	-rw-r--r--
hid-sensor-hub.h	8.97 KB	-rw-r--r--
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hid.h	37.67 KB	-rw-r--r--
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hiddev.h	1.42 KB	-rw-r--r--
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highmem-internal.h	5.06 KB	-rw-r--r--
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highuid.h	3.12 KB	-rw-r--r--
hil.h	18.42 KB	-rw-r--r--
hil_mlc.h	5.13 KB	-rw-r--r--
hippidevice.h	1.03 KB	-rw-r--r--
hmm.h	4.07 KB	-rw-r--r--
host1x.h	10.74 KB	-rw-r--r--
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hpet.h	2.55 KB	-rw-r--r--
hrtimer.h	16.01 KB	-rw-r--r--
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htcpld.h	617 B	-rw-r--r--
huge_mm.h	13.27 KB	-rw-r--r--
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hugetlb_cgroup.h	7.07 KB	-rw-r--r--
hugetlb_inline.h	374 B	-rw-r--r--
hw_breakpoint.h	4.15 KB	-rw-r--r--
hw_random.h	2.24 KB	-rw-r--r--
hwmon-sysfs.h	2.77 KB	-rw-r--r--
hwmon-vid.h	862 B	-rw-r--r--
hwmon.h	14.78 KB	-rw-r--r--
hwspinlock.h	15.64 KB	-rw-r--r--
hyperv.h	47.93 KB	-rw-r--r--
hypervisor.h	608 B	-rw-r--r--
i2c-algo-bit.h	1.4 KB	-rw-r--r--
i2c-algo-pca.h	2.89 KB	-rw-r--r--
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i2c-dev.h	371 B	-rw-r--r--
i2c-mux.h	1.63 KB	-rw-r--r--
i2c-smbus.h	1.73 KB	-rw-r--r--
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i8042.h	1.99 KB	-rw-r--r--
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icmp.h	1 KB	-rw-r--r--
icmpv6.h	2.7 KB	-rw-r--r--
idle_inject.h	932 B	-rw-r--r--
idr.h	9.58 KB	-rw-r--r--
ieee80211.h	123.96 KB	-rw-r--r--
ieee802154.h	11.12 KB	-rw-r--r--
if_arp.h	1.63 KB	-rw-r--r--
if_bridge.h	4.9 KB	-rw-r--r--
if_eql.h	1.07 KB	-rw-r--r--
if_ether.h	1.26 KB	-rw-r--r--
if_fddi.h	3.24 KB	-rw-r--r--
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if_link.h	592 B	-rw-r--r--
if_ltalk.h	188 B	-rw-r--r--
if_macvlan.h	2.69 KB	-rw-r--r--
if_phonet.h	319 B	-rw-r--r--
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if_pppox.h	2.84 KB	-rw-r--r--
if_rmnet.h	2.04 KB	-rw-r--r--
if_tap.h	2.21 KB	-rw-r--r--
if_team.h	7.84 KB	-rw-r--r--
if_tun.h	1.55 KB	-rw-r--r--
if_tunnel.h	409 B	-rw-r--r--
if_vlan.h	20.37 KB	-rw-r--r--
igmp.h	4.33 KB	-rw-r--r--
ihex.h	2.15 KB	-rw-r--r--
ima.h	5.7 KB	-rw-r--r--
imx-media.h	605 B	-rw-r--r--
in.h	2.29 KB	-rw-r--r--
in6.h	1.63 KB	-rw-r--r--
indirect_call_wrapper.h	2.23 KB	-rw-r--r--
inet.h	2.64 KB	-rw-r--r--
inet_diag.h	2.74 KB	-rw-r--r--
inetdevice.h	8.87 KB	-rw-r--r--
init.h	11.39 KB	-rw-r--r--
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init_syscalls.h	1.01 KB	-rw-r--r--
init_task.h	1.3 KB	-rw-r--r--
initrd.h	1.02 KB	-rw-r--r--
inotify.h	713 B	-rw-r--r--
input.h	19.88 KB	-rw-r--r--
instrumentation.h	1.93 KB	-rw-r--r--
instrumented.h	3.6 KB	-rw-r--r--
integrity.h	1.15 KB	-rw-r--r--
intel-iommu.h	27.48 KB	-rw-r--r--
intel-ish-client-if.h	3.97 KB	-rw-r--r--
intel-svm.h	1.54 KB	-rw-r--r--
intel_rapl.h	4.14 KB	-rw-r--r--
intel_th.h	2.44 KB	-rw-r--r--
interconnect-provider.h	5.51 KB	-rw-r--r--
interconnect.h	2.88 KB	-rw-r--r--
interrupt.h	23.81 KB	-rw-r--r--
interval_tree.h	831 B	-rw-r--r--
interval_tree_generic.h	6.7 KB	-rw-r--r--
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io-mapping.h	4.65 KB	-rw-r--r--
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io.h	5.02 KB	-rw-r--r--
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ioam6_genl.h	266 B	-rw-r--r--
ioam6_iptunnel.h	285 B	-rw-r--r--
ioasid.h	2.07 KB	-rw-r--r--
iocontext.h	4.59 KB	-rw-r--r--
iomap.h	11.67 KB	-rw-r--r--
iommu-helper.h	1.12 KB	-rw-r--r--
iommu.h	34.04 KB	-rw-r--r--
iopoll.h	7.58 KB	-rw-r--r--
ioport.h	12.16 KB	-rw-r--r--
ioprio.h	1.74 KB	-rw-r--r--
iova.h	6.15 KB	-rw-r--r--
ip.h	1 KB	-rw-r--r--
ipack.h	8.69 KB	-rw-r--r--
ipc.h	613 B	-rw-r--r--
ipc_namespace.h	4.98 KB	-rw-r--r--
ipmi.h	10.88 KB	-rw-r--r--
ipmi_smi.h	7.98 KB	-rw-r--r--
ipv6.h	8.67 KB	-rw-r--r--
ipv6_route.h	372 B	-rw-r--r--
irq.h	41.58 KB	-rw-r--r--
irq_poll.h	575 B	-rw-r--r--
irq_sim.h	789 B	-rw-r--r--
irq_work.h	1.79 KB	-rw-r--r--
irqbypass.h	3.45 KB	-rw-r--r--
irqchip.h	2.33 KB	-rw-r--r--
irqdesc.h	7.75 KB	-rw-r--r--
irqdomain.h	19.98 KB	-rw-r--r--
irqflags.h	7.7 KB	-rw-r--r--
irqhandler.h	300 B	-rw-r--r--
irqnr.h	856 B	-rw-r--r--
irqreturn.h	503 B	-rw-r--r--
isa.h	2.12 KB	-rw-r--r--
isapnp.h	2.88 KB	-rw-r--r--
iscsi_boot_sysfs.h	3.71 KB	-rw-r--r--
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iversion.h	12.37 KB	-rw-r--r--
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journal-head.h	2.91 KB	-rw-r--r--
joystick.h	437 B	-rw-r--r--
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jump_label_ratelimit.h	2.77 KB	-rw-r--r--
jz4740-adc.h	1023 B	-rw-r--r--
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kallsyms.h	4.5 KB	-rw-r--r--
kasan-checks.h	1.46 KB	-rw-r--r--
kasan-tags.h	487 B	-rw-r--r--
kasan.h	13.31 KB	-rw-r--r--
kbd_diacr.h	198 B	-rw-r--r--
kbd_kern.h	3.6 KB	-rw-r--r--
kbuild.h	380 B	-rw-r--r--
kconfig.h	2.63 KB	-rw-r--r--
kcore.h	891 B	-rw-r--r--
kcov.h	2.41 KB	-rw-r--r--
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kdev_t.h	1.8 KB	-rw-r--r--
kern_levels.h	1.57 KB	-rw-r--r--
kernel-page-flags.h	528 B	-rw-r--r--
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kernel_read_file.h	1.64 KB	-rw-r--r--
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kernelcapi.h	1.45 KB	-rw-r--r--
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kexec.h	11.37 KB	-rw-r--r--
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key.h	15.75 KB	-rw-r--r--
keyboard.h	665 B	-rw-r--r--
keyctl.h	1.25 KB	-rw-r--r--
keyslot-manager.h	3.78 KB	-rw-r--r--
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kfifo.h	26.18 KB	-rw-r--r--
kgdb.h	12.05 KB	-rw-r--r--
khugepaged.h	2.74 KB	-rw-r--r--
klist.h	1.88 KB	-rw-r--r--
kmemleak.h	3.27 KB	-rw-r--r--
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ksm.h	2.47 KB	-rw-r--r--
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ktime.h	5.38 KB	-rw-r--r--
kvm_dirty_ring.h	2.73 KB	-rw-r--r--
kvm_host.h	58.09 KB	-rw-r--r--
kvm_irqfd.h	2 KB	-rw-r--r--
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l2tp.h	261 B	-rw-r--r--
lantiq.h	365 B	-rw-r--r--
lapb.h	1.71 KB	-rw-r--r--
latencytop.h	1.16 KB	-rw-r--r--
lcd.h	3.78 KB	-rw-r--r--
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led-class-flash.h	6.74 KB	-rw-r--r--
led-class-multicolor.h	3.26 KB	-rw-r--r--
led-lm3530.h	3.7 KB	-rw-r--r--
leds-bd2802.h	476 B	-rw-r--r--
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leds-pca9532.h	866 B	-rw-r--r--
leds-regulator.h	1.14 KB	-rw-r--r--
leds-ti-lmu-common.h	1.12 KB	-rw-r--r--
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libata.h	66.97 KB	-rw-r--r--
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libgcc.h	463 B	-rw-r--r--
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libps2.h	1.89 KB	-rw-r--r--
license.h	418 B	-rw-r--r--
limits.h	715 B	-rw-r--r--
linear_range.h	1.72 KB	-rw-r--r--
linkage.h	9.57 KB	-rw-r--r--
linkmode.h	2.5 KB	-rw-r--r--
linux_logo.h	1.91 KB	-rw-r--r--
lis3lv02d.h	5 KB	-rw-r--r--
list.h	29.78 KB	-rw-r--r--
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litex.h	2.06 KB	-rw-r--r--
livepatch.h	8.22 KB	-rw-r--r--
llc.h	749 B	-rw-r--r--
llist.h	9.06 KB	-rw-r--r--
local_lock.h	1.33 KB	-rw-r--r--
local_lock_internal.h	3.42 KB	-rw-r--r--
lockdep.h	21.34 KB	-rw-r--r--
lockdep_types.h	5.18 KB	-rw-r--r--
lockref.h	1.5 KB	-rw-r--r--
log2.h	6.22 KB	-rw-r--r--
logic_iomem.h	2.07 KB	-rw-r--r--
logic_pio.h	3.23 KB	-rw-r--r--
lp.h	2.76 KB	-rw-r--r--
lru_cache.h	11.83 KB	-rw-r--r--
lsm_audit.h	2.81 KB	-rw-r--r--
lsm_hook_defs.h	20.89 KB	-rw-r--r--
lsm_hooks.h	74.39 KB	-rw-r--r--
lz4.h	26.44 KB	-rw-r--r--
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mISDNdsp.h	1.19 KB	-rw-r--r--
mISDNhw.h	5.39 KB	-rw-r--r--
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mailbox_client.h	1.71 KB	-rw-r--r--
mailbox_controller.h	5.67 KB	-rw-r--r--
maple.h	2.71 KB	-rw-r--r--
marvell_phy.h	1.69 KB	-rw-r--r--
math.h	5.06 KB	-rw-r--r--
math64.h	7.48 KB	-rw-r--r--
mbcache.h	1.57 KB	-rw-r--r--
mbus.h	3.09 KB	-rw-r--r--
mc146818rtc.h	4.46 KB	-rw-r--r--
mc6821.h	1.18 KB	-rw-r--r--
mcb.h	3.72 KB	-rw-r--r--
mdev.h	5.94 KB	-rw-r--r--
mdio-bitbang.h	1.31 KB	-rw-r--r--
mdio-gpio.h	177 B	-rw-r--r--
mdio-mux.h	1021 B	-rw-r--r--
mdio.h	12.42 KB	-rw-r--r--
mei_cl_bus.h	3.75 KB	-rw-r--r--
mem_encrypt.h	885 B	-rw-r--r--
memblock.h	20.08 KB	-rw-r--r--
memcontrol.h	43.18 KB	-rw-r--r--
memfd.h	365 B	-rw-r--r--
memory.h	5.99 KB	-rw-r--r--
memory_hotplug.h	11.42 KB	-rw-r--r--
mempolicy.h	7.37 KB	-rw-r--r--
mempool.h	3.35 KB	-rw-r--r--
memregion.h	403 B	-rw-r--r--
memremap.h	5.97 KB	-rw-r--r--
memstick.h	9.6 KB	-rw-r--r--
mhi.h	26.04 KB	-rw-r--r--
micrel_phy.h	1.85 KB	-rw-r--r--
microchipphy.h	2.65 KB	-rw-r--r--
migrate.h	5.41 KB	-rw-r--r--
migrate_mode.h	758 B	-rw-r--r--
mii.h	16.33 KB	-rw-r--r--
mii_timestamper.h	3.57 KB	-rw-r--r--
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minmax.h	4.02 KB	-rw-r--r--
misc_cgroup.h	2.95 KB	-rw-r--r--
miscdevice.h	3.2 KB	-rw-r--r--
mm.h	104.32 KB	-rw-r--r--
mm_inline.h	2.92 KB	-rw-r--r--
mm_types.h	25.06 KB	-rw-r--r--
mm_types_task.h	2.5 KB	-rw-r--r--
mman.h	3.91 KB	-rw-r--r--
mmap_lock.h	4.25 KB	-rw-r--r--
mmdebug.h	2.25 KB	-rw-r--r--
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mmu_context.h	855 B	-rw-r--r--
mmu_notifier.h	24.64 KB	-rw-r--r--
mmzone.h	46.64 KB	-rw-r--r--
mnt_namespace.h	697 B	-rw-r--r--
mod_devicetable.h	23.42 KB	-rw-r--r--
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moduleloader.h	3.1 KB	-rw-r--r--
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most.h	12.2 KB	-rw-r--r--
mount.h	3.93 KB	-rw-r--r--
moxtet.h	2.36 KB	-rw-r--r--
mpage.h	737 B	-rw-r--r--
mpi.h	8.41 KB	-rw-r--r--
mpls.h	394 B	-rw-r--r--
mpls_iptunnel.h	178 B	-rw-r--r--
mroute.h	1.97 KB	-rw-r--r--
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mroute_base.h	12.17 KB	-rw-r--r--
msdos_fs.h	273 B	-rw-r--r--
msdos_partition.h	1.62 KB	-rw-r--r--
msg.h	395 B	-rw-r--r--
msi.h	15.36 KB	-rw-r--r--
mtio.h	1.29 KB	-rw-r--r--
mutex.h	6.65 KB	-rw-r--r--
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mv643xx_eth.h	1.95 KB	-rw-r--r--
mv643xx_i2c.h	335 B	-rw-r--r--
mvebu-pmsu.h	520 B	-rw-r--r--
mxm-wmi.h	399 B	-rw-r--r--
namei.h	3.85 KB	-rw-r--r--
nd.h	5.55 KB	-rw-r--r--
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net.h	11.43 KB	-rw-r--r--
netdev_features.h	10.75 KB	-rw-r--r--
netdevice.h	167.19 KB	-rw-r--r--
netfilter.h	13.47 KB	-rw-r--r--
netfilter_bridge.h	2.08 KB	-rw-r--r--
netfilter_defs.h	486 B	-rw-r--r--
netfilter_ingress.h	1.44 KB	-rw-r--r--
netfilter_ipv4.h	1.05 KB	-rw-r--r--
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netfs.h	7.93 KB	-rw-r--r--
netlink.h	7.88 KB	-rw-r--r--
netpoll.h	2.4 KB	-rw-r--r--
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nfs3.h	260 B	-rw-r--r--
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nfs_page.h	6.75 KB	-rw-r--r--
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nfs_xdr.h	42.12 KB	-rw-r--r--
nfsacl.h	1.4 KB	-rw-r--r--
nitro_enclaves.h	267 B	-rw-r--r--
nl802154.h	3.85 KB	-rw-r--r--
nls.h	3.08 KB	-rw-r--r--
nmi.h	6.72 KB	-rw-r--r--
node.h	4.67 KB	-rw-r--r--
nodemask.h	16.99 KB	-rw-r--r--
nospec.h	2.16 KB	-rw-r--r--
notifier.h	7.84 KB	-rw-r--r--
ns_common.h	283 B	-rw-r--r--
nsc_gpio.h	1.42 KB	-rw-r--r--
nsproxy.h	3.09 KB	-rw-r--r--
ntb.h	52.43 KB	-rw-r--r--
ntb_transport.h	3.8 KB	-rw-r--r--
nubus.h	5.54 KB	-rw-r--r--
numa.h	1.25 KB	-rw-r--r--
nvme-fc-driver.h	45.86 KB	-rw-r--r--
nvme-fc.h	9.72 KB	-rw-r--r--
nvme-rdma.h	2.04 KB	-rw-r--r--
nvme-tcp.h	4.4 KB	-rw-r--r--
nvme.h	37.72 KB	-rw-r--r--
nvmem-consumer.h	6.78 KB	-rw-r--r--
nvmem-provider.h	4.72 KB	-rw-r--r--
nvram.h	3.47 KB	-rw-r--r--
objagg.h	1.99 KB	-rw-r--r--
objtool.h	4.35 KB	-rw-r--r--
of.h	43.24 KB	-rw-r--r--
of_address.h	4.17 KB	-rw-r--r--
of_clk.h	819 B	-rw-r--r--
of_device.h	2.93 KB	-rw-r--r--
of_dma.h	2.3 KB	-rw-r--r--
of_fdt.h	3.65 KB	-rw-r--r--
of_gpio.h	4.07 KB	-rw-r--r--
of_graph.h	3.55 KB	-rw-r--r--
of_iommu.h	505 B	-rw-r--r--
of_irq.h	3.75 KB	-rw-r--r--
of_mdio.h	3.51 KB	-rw-r--r--
of_net.h	824 B	-rw-r--r--
of_pci.h	915 B	-rw-r--r--
of_pdt.h	1.14 KB	-rw-r--r--
of_platform.h	3.88 KB	-rw-r--r--
of_reserved_mem.h	2.24 KB	-rw-r--r--
oid_registry.h	5.63 KB	-rw-r--r--
olpc-ec.h	1.95 KB	-rw-r--r--
omap-dma.h	9.79 KB	-rw-r--r--
omap-gpmc.h	2.64 KB	-rw-r--r--
omap-iommu.h	880 B	-rw-r--r--
omap-mailbox.h	689 B	-rw-r--r--
omapfb.h	576 B	-rw-r--r--
once.h	1.87 KB	-rw-r--r--
once_lite.h	677 B	-rw-r--r--
oom.h	3.26 KB	-rw-r--r--
openvswitch.h	403 B	-rw-r--r--
osq_lock.h	1.04 KB	-rw-r--r--
overflow.h	6.42 KB	-rw-r--r--
packing.h	1.76 KB	-rw-r--r--
padata.h	6.12 KB	-rw-r--r--
page-flags-layout.h	3.21 KB	-rw-r--r--
page-flags.h	28 KB	-rw-r--r--
page-isolation.h	1.64 KB	-rw-r--r--
page_counter.h	2.3 KB	-rw-r--r--
page_ext.h	1.83 KB	-rw-r--r--
page_idle.h	2.61 KB	-rw-r--r--
page_owner.h	2.31 KB	-rw-r--r--
page_ref.h	4.95 KB	-rw-r--r--
page_reporting.h	895 B	-rw-r--r--
pageblock-flags.h	2.31 KB	-rw-r--r--
pagemap.h	31.48 KB	-rw-r--r--
pagevec.h	2.04 KB	-rw-r--r--
pagewalk.h	4.07 KB	-rw-r--r--
panic.h	2.69 KB	-rw-r--r--
panic_notifier.h	296 B	-rw-r--r--
parman.h	2.87 KB	-rw-r--r--
parport.h	19.09 KB	-rw-r--r--
parport_pc.h	6.56 KB	-rw-r--r--
parser.h	1.17 KB	-rw-r--r--
part_stat.h	2.38 KB	-rw-r--r--
pata_arasan_cf_data.h	1.22 KB	-rw-r--r--
patchkey.h	757 B	-rw-r--r--
path.h	572 B	-rw-r--r--
pch_dma.h	408 B	-rw-r--r--
pci-acpi.h	3.85 KB	-rw-r--r--
pci-ats.h	1.76 KB	-rw-r--r--
pci-dma-compat.h	3.66 KB	-rw-r--r--
pci-ecam.h	3.2 KB	-rw-r--r--
pci-ep-cfs.h	956 B	-rw-r--r--
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pci-p2pdma.h	3.95 KB	-rw-r--r--
pci.h	89.14 KB	-rw-r--r--
pci_hotplug.h	4.35 KB	-rw-r--r--
pci_ids.h	120.69 KB	-rw-r--r--
pcs-lynx.h	425 B	-rw-r--r--
pda_power.h	1005 B	-rw-r--r--
pe.h	16.17 KB	-rw-r--r--
percpu-defs.h	18.12 KB	-rw-r--r--
percpu-refcount.h	10.84 KB	-rw-r--r--
percpu-rwsem.h	4.16 KB	-rw-r--r--
percpu.h	4.65 KB	-rw-r--r--
percpu_counter.h	4.39 KB	-rw-r--r--
perf_event.h	46.38 KB	-rw-r--r--
perf_regs.h	1.05 KB	-rw-r--r--
personality.h	393 B	-rw-r--r--
pfn.h	666 B	-rw-r--r--
pfn_t.h	3.21 KB	-rw-r--r--
pgtable.h	43.89 KB	-rw-r--r--
phonet.h	537 B	-rw-r--r--
phy.h	57.75 KB	-rw-r--r--
phy_fixed.h	1.77 KB	-rw-r--r--
phy_led_triggers.h	1.01 KB	-rw-r--r--
phylink.h	19.37 KB	-rw-r--r--
pid.h	6.29 KB	-rw-r--r--
pid_namespace.h	2.08 KB	-rw-r--r--
pim.h	2.67 KB	-rw-r--r--
pipe_fs_i.h	8.68 KB	-rw-r--r--
pkeys.h	990 B	-rw-r--r--
pktcdvd.h	5.87 KB	-rw-r--r--
pl320-ipc.h	209 B	-rw-r--r--
platform_device.h	12.21 KB	-rw-r--r--
platform_profile.h	1.12 KB	-rw-r--r--
pldmfw.h	4.76 KB	-rw-r--r--
plist.h	8.66 KB	-rw-r--r--
pm-trace.h	940 B	-rw-r--r--
pm.h	32.64 KB	-rw-r--r--
pm_clock.h	2.58 KB	-rw-r--r--
pm_domain.h	13.18 KB	-rw-r--r--
pm_opp.h	15.1 KB	-rw-r--r--
pm_qos.h	10.41 KB	-rw-r--r--
pm_runtime.h	18.5 KB	-rw-r--r--
pm_wakeirq.h	1.31 KB	-rw-r--r--
pm_wakeup.h	6.28 KB	-rw-r--r--
pmbus.h	2.48 KB	-rw-r--r--
pmu.h	2.44 KB	-rw-r--r--
pnfs_osd_xdr.h	9.27 KB	-rw-r--r--
pnp.h	14.9 KB	-rw-r--r--
poison.h	2.48 KB	-rw-r--r--
poll.h	4.07 KB	-rw-r--r--
posix-clock.h	3.91 KB	-rw-r--r--
posix-timers.h	7.01 KB	-rw-r--r--
posix_acl.h	3.27 KB	-rw-r--r--
posix_acl_xattr.h	1.75 KB	-rw-r--r--
power_supply.h	17.74 KB	-rw-r--r--
powercap.h	11.98 KB	-rw-r--r--
ppp-comp.h	2.95 KB	-rw-r--r--
ppp_channel.h	2.99 KB	-rw-r--r--
ppp_defs.h	305 B	-rw-r--r--
pps_kernel.h	2.9 KB	-rw-r--r--
pr.h	566 B	-rw-r--r--
prandom.h	3.75 KB	-rw-r--r--
preempt.h	11.99 KB	-rw-r--r--
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prime_numbers.h	1.35 KB	-rw-r--r--
printk.h	22.19 KB	-rw-r--r--
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proc_fs.h	8.35 KB	-rw-r--r--
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processor.h	1.84 KB	-rw-r--r--
profile.h	2.65 KB	-rw-r--r--
projid.h	2.22 KB	-rw-r--r--
property.h	17.28 KB	-rw-r--r--
pruss_driver.h	1.27 KB	-rw-r--r--
psci.h	1.52 KB	-rw-r--r--
pseudo_fs.h	355 B	-rw-r--r--
psi.h	1.56 KB	-rw-r--r--
psi_types.h	4.31 KB	-rw-r--r--
psp-sev.h	17.76 KB	-rw-r--r--
psp-tee.h	2.65 KB	-rw-r--r--
pstore.h	7.63 KB	-rw-r--r--
pstore_blk.h	1.53 KB	-rw-r--r--
pstore_ram.h	3.82 KB	-rw-r--r--
pstore_zone.h	2.28 KB	-rw-r--r--
ptdump.h	567 B	-rw-r--r--
pti.h	240 B	-rw-r--r--
ptp_classify.h	4.35 KB	-rw-r--r--
ptp_clock_kernel.h	12.2 KB	-rw-r--r--
ptp_kvm.h	430 B	-rw-r--r--
ptp_pch.h	623 B	-rw-r--r--
ptr_ring.h	16.29 KB	-rw-r--r--
ptrace.h	14.92 KB	-rw-r--r--
purgatory.h	590 B	-rw-r--r--
pvclock_gtod.h	548 B	-rw-r--r--
pwm.h	16.37 KB	-rw-r--r--
pwm_backlight.h	722 B	-rw-r--r--
pxa168_eth.h	728 B	-rw-r--r--
pxa2xx_ssp.h	11.13 KB	-rw-r--r--
qcom-geni-se.h	13.74 KB	-rw-r--r--
qcom_scm.h	3.81 KB	-rw-r--r--
qnx6_fs.h	3.27 KB	-rw-r--r--
quota.h	18.67 KB	-rw-r--r--
quotaops.h	10.28 KB	-rw-r--r--
radix-tree.h	15.63 KB	-rw-r--r--
raid_class.h	2.1 KB	-rw-r--r--
ramfs.h	695 B	-rw-r--r--
random.h	4.12 KB	-rw-r--r--
randomize_kstack.h	1.92 KB	-rw-r--r--
range.h	775 B	-rw-r--r--
ras.h	1.02 KB	-rw-r--r--
ratelimit.h	1.72 KB	-rw-r--r--
ratelimit_types.h	1.14 KB	-rw-r--r--
rational.h	639 B	-rw-r--r--
rbtree.h	8.93 KB	-rw-r--r--
rbtree_augmented.h	9.53 KB	-rw-r--r--
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rbtree_types.h	946 B	-rw-r--r--
rcu_node_tree.h	3.73 KB	-rw-r--r--
rcu_segcblist.h	10.03 KB	-rw-r--r--
rcu_sync.h	1.46 KB	-rw-r--r--
rculist.h	28.56 KB	-rw-r--r--
rculist_bl.h	3.29 KB	-rw-r--r--
rculist_nulls.h	6.57 KB	-rw-r--r--
rcupdate.h	36.33 KB	-rw-r--r--
rcupdate_trace.h	3.08 KB	-rw-r--r--
rcupdate_wait.h	1.73 KB	-rw-r--r--
rcutiny.h	3.32 KB	-rw-r--r--
rcutree.h	2.34 KB	-rw-r--r--
rcuwait.h	1.84 KB	-rw-r--r--
reboot-mode.h	600 B	-rw-r--r--
reboot.h	2.18 KB	-rw-r--r--
reciprocal_div.h	3.28 KB	-rw-r--r--
refcount.h	12.02 KB	-rw-r--r--
regmap.h	62.95 KB	-rw-r--r--
regset.h	11.35 KB	-rw-r--r--
relay.h	8.47 KB	-rw-r--r--
remoteproc.h	24.77 KB	-rw-r--r--
resctrl.h	6.5 KB	-rw-r--r--
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reset.h	30.24 KB	-rw-r--r--
resource.h	339 B	-rw-r--r--
resource_ext.h	2.08 KB	-rw-r--r--
restart_block.h	1.11 KB	-rw-r--r--
rfkill.h	10.52 KB	-rw-r--r--
rhashtable-types.h	3.45 KB	-rw-r--r--
rhashtable.h	37.59 KB	-rw-r--r--
ring_buffer.h	7.43 KB	-rw-r--r--
rio.h	19.02 KB	-rw-r--r--
rio_drv.h	14.32 KB	-rw-r--r--
rio_ids.h	1.08 KB	-rw-r--r--
rio_regs.h	19.07 KB	-rw-r--r--
rmap.h	8.96 KB	-rw-r--r--
rmi.h	12.04 KB	-rw-r--r--
rndis.h	16.86 KB	-rw-r--r--
rodata_test.h	394 B	-rw-r--r--
root_dev.h	619 B	-rw-r--r--
rpmsg.h	8.4 KB	-rw-r--r--
rslib.h	3.67 KB	-rw-r--r--
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rtmutex.h	2.97 KB	-rw-r--r--
rtnetlink.h	4.46 KB	-rw-r--r--
rtsx_common.h	890 B	-rw-r--r--
rtsx_pci.h	39.82 KB	-rw-r--r--
rtsx_usb.h	15.42 KB	-rw-r--r--
rwbase_rt.h	876 B	-rw-r--r--
rwlock.h	4.55 KB	-rw-r--r--
rwlock_api_smp.h	7.65 KB	-rw-r--r--
rwlock_rt.h	2.98 KB	-rw-r--r--
rwlock_types.h	1.77 KB	-rw-r--r--
rwsem.h	7.32 KB	-rw-r--r--
s3c_adc_battery.h	923 B	-rw-r--r--
sbitmap.h	16.9 KB	-rw-r--r--
scatterlist.h	17.56 KB	-rw-r--r--
scc.h	2.84 KB	-rw-r--r--
sched.h	64.44 KB	-rw-r--r--
sched_clock.h	1.44 KB	-rw-r--r--
scmi_protocol.h	26.03 KB	-rw-r--r--
scpi_protocol.h	2.67 KB	-rw-r--r--
screen_info.h	191 B	-rw-r--r--
scs.h	1.83 KB	-rw-r--r--
sctp.h	22.88 KB	-rw-r--r--
scx200.h	1.82 KB	-rw-r--r--
scx200_gpio.h	2.38 KB	-rw-r--r--
sdb.h	4.17 KB	-rw-r--r--
seccomp.h	3.45 KB	-rw-r--r--
secretmem.h	1.17 KB	-rw-r--r--
securebits.h	239 B	-rw-r--r--
security.h	58.64 KB	-rw-r--r--
sed-opal.h	1.66 KB	-rw-r--r--
seg6.h	121 B	-rw-r--r--
seg6_genl.h	136 B	-rw-r--r--
seg6_hmac.h	136 B	-rw-r--r--
seg6_iptunnel.h	148 B	-rw-r--r--
seg6_local.h	100 B	-rw-r--r--
selection.h	1.81 KB	-rw-r--r--
sem.h	599 B	-rw-r--r--
semaphore.h	1.35 KB	-rw-r--r--
seq_buf.h	3.94 KB	-rw-r--r--
seq_file.h	8.75 KB	-rw-r--r--
seq_file_net.h	730 B	-rw-r--r--
seqlock.h	38.18 KB	-rw-r--r--
seqno-fence.h	3.57 KB	-rw-r--r--
serdev.h	9.82 KB	-rw-r--r--
serial.h	630 B	-rw-r--r--
serial_8250.h	6.57 KB	-rw-r--r--
serial_bcm63xx.h	4.73 KB	-rw-r--r--
serial_core.h	17.65 KB	-rw-r--r--
serial_max3100.h	1.19 KB	-rw-r--r--
serial_s3c.h	9.42 KB	-rw-r--r--
serial_sci.h	1.6 KB	-rw-r--r--
serio.h	4.28 KB	-rw-r--r--
set_memory.h	1.66 KB	-rw-r--r--
sfp.h	15.87 KB	-rw-r--r--
sh_clk.h	5.96 KB	-rw-r--r--
sh_dma.h	3.47 KB	-rw-r--r--
sh_eth.h	369 B	-rw-r--r--
sh_intc.h	3.42 KB	-rw-r--r--
sh_timer.h	172 B	-rw-r--r--
shdma-base.h	4.27 KB	-rw-r--r--
shm.h	968 B	-rw-r--r--
shmem_fs.h	5.81 KB	-rw-r--r--
shrinker.h	3.25 KB	-rw-r--r--
signal.h	13.56 KB	-rw-r--r--
signal_types.h	1.68 KB	-rw-r--r--
signalfd.h	817 B	-rw-r--r--
siox.h	2.26 KB	-rw-r--r--
siphash.h	4.53 KB	-rw-r--r--
sizes.h	1.27 KB	-rw-r--r--
skb_array.h	5.18 KB	-rw-r--r--
skbuff.h	133.77 KB	-rw-r--r--
skmsg.h	13.29 KB	-rw-r--r--
slab.h	22.32 KB	-rw-r--r--
slab_def.h	3.02 KB	-rw-r--r--
slimbus.h	6.93 KB	-rw-r--r--
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sm501-regs.h	11.62 KB	-rw-r--r--
sm501.h	4.02 KB	-rw-r--r--
smc911x.h	294 B	-rw-r--r--
smc91x.h	1.57 KB	-rw-r--r--
smp.h	7.63 KB	-rw-r--r--
smp_types.h	1.35 KB	-rw-r--r--
smpboot.h	1.68 KB	-rw-r--r--
smsc911x.h	1.63 KB	-rw-r--r--
smscphy.h	1.25 KB	-rw-r--r--
sock_diag.h	2.31 KB	-rw-r--r--
socket.h	15.04 KB	-rw-r--r--
sockptr.h	2.23 KB	-rw-r--r--
sonet.h	469 B	-rw-r--r--
sony-laptop.h	1.41 KB	-rw-r--r--
sonypi.h	1.71 KB	-rw-r--r--
sort.h	346 B	-rw-r--r--
sound.h	685 B	-rw-r--r--
soundcard.h	1.59 KB	-rw-r--r--
spinlock.h	14.07 KB	-rw-r--r--
spinlock_api_smp.h	5.47 KB	-rw-r--r--
spinlock_api_up.h	3.31 KB	-rw-r--r--
spinlock_rt.h	4.11 KB	-rw-r--r--
spinlock_types.h	1.78 KB	-rw-r--r--
spinlock_types_raw.h	1.69 KB	-rw-r--r--
spinlock_types_up.h	726 B	-rw-r--r--
spinlock_up.h	2.16 KB	-rw-r--r--
splice.h	3.24 KB	-rw-r--r--
spmi.h	5.59 KB	-rw-r--r--
sram.h	844 B	-rw-r--r--
srcu.h	6.93 KB	-rw-r--r--
srcutiny.h	2.75 KB	-rw-r--r--
srcutree.h	4.8 KB	-rw-r--r--
ssbi.h	726 B	-rw-r--r--
stackdepot.h	768 B	-rw-r--r--
stackleak.h	902 B	-rw-r--r--
stackprotector.h	361 B	-rw-r--r--
stacktrace.h	3.89 KB	-rw-r--r--
start_kernel.h	415 B	-rw-r--r--
stat.h	1.33 KB	-rw-r--r--
statfs.h	1.78 KB	-rw-r--r--
static_call.h	10.17 KB	-rw-r--r--
static_call_types.h	2.74 KB	-rw-r--r--
static_key.h	30 B	-rw-r--r--
stdarg.h	313 B	-rw-r--r--
stddef.h	827 B	-rw-r--r--
stm.h	4.34 KB	-rw-r--r--
stmmac.h	6.75 KB	-rw-r--r--
stmp3xxx_rtc_wdt.h	331 B	-rw-r--r--
stmp_device.h	412 B	-rw-r--r--
stop_machine.h	4.41 KB	-rw-r--r--
string.h	8.66 KB	-rw-r--r--
string_helpers.h	2.69 KB	-rw-r--r--
stringhash.h	2.65 KB	-rw-r--r--
stringify.h	341 B	-rw-r--r--
sungem_phy.h	3.94 KB	-rw-r--r--
sunserialcore.h	1.08 KB	-rw-r--r--
sunxi-rsb.h	2.89 KB	-rw-r--r--
superhyway.h	2.81 KB	-rw-r--r--
surface_acpi_notify.h	1.07 KB	-rw-r--r--
suspend.h	20.02 KB	-rw-r--r--
svga.h	3.75 KB	-rw-r--r--
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swab.h	569 B	-rw-r--r--
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swap.h	23.51 KB	-rw-r--r--
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swap_slots.h	841 B	-rw-r--r--
swapfile.h	556 B	-rw-r--r--
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swiotlb.h	5.33 KB	-rw-r--r--
switchtec.h	10.9 KB	-rw-r--r--
sxgbe_platform.h	1.23 KB	-rw-r--r--
sync_core.h	581 B	-rw-r--r--
sync_file.h	1.57 KB	-rw-r--r--
synclink.h	989 B	-rw-r--r--
sys.h	960 B	-rw-r--r--
sys_soc.h	1.26 KB	-rw-r--r--
syscall_user_dispatch.h	930 B	-rw-r--r--
syscalls.h	55.31 KB	-rw-r--r--
syscore_ops.h	633 B	-rw-r--r--
sysctl.h	7.73 KB	-rw-r--r--
sysfb.h	2.39 KB	-rw-r--r--
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syslog.h	1.24 KB	-rw-r--r--
sysrq.h	1.96 KB	-rw-r--r--
sysv_fs.h	9.03 KB	-rw-r--r--
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Code Editor : blkdev.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_BLKDEV_H
#define _LINUX_BLKDEV_H

#include <linux/sched.h>
#include <linux/sched/clock.h>
#include <linux/major.h>
#include <linux/genhd.h>
#include <linux/list.h>
#include <linux/llist.h>
#include <linux/minmax.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/wait.h>
#include <linux/mempool.h>
#include <linux/pfn.h>
#include <linux/bio.h>
#include <linux/stringify.h>
#include <linux/gfp.h>
#include <linux/smp.h>
#include <linux/rcupdate.h>
#include <linux/percpu-refcount.h>
#include <linux/scatterlist.h>
#include <linux/blkzoned.h>
#include <linux/pm.h>
#include <linux/sbitmap.h>

struct module;
struct request_queue;
struct elevator_queue;
struct blk_trace;
struct request;
struct sg_io_hdr;
struct blkcg_gq;
struct blk_flush_queue;
struct pr_ops;
struct rq_qos;
struct blk_queue_stats;
struct blk_stat_callback;
struct blk_keyslot_manager;

#define BLKDEV_MIN_RQ	4
#define BLKDEV_MAX_RQ	128	/* Default maximum */

/* Must be consistent with blk_mq_poll_stats_bkt() */
#define BLK_MQ_POLL_STATS_BKTS 16

/* Doing classic polling */
#define BLK_MQ_POLL_CLASSIC -1

/*
 * Maximum number of blkcg policies allowed to be registered concurrently.
 * Defined here to simplify include dependency.
 */
#define BLKCG_MAX_POLS		6

typedef void (rq_end_io_fn)(struct request *, blk_status_t);

/*
 * request flags */
typedef __u32 __bitwise req_flags_t;

/* drive already may have started this one */
#define RQF_STARTED		((__force req_flags_t)(1 << 1))
/* may not be passed by ioscheduler */
#define RQF_SOFTBARRIER		((__force req_flags_t)(1 << 3))
/* request for flush sequence */
#define RQF_FLUSH_SEQ		((__force req_flags_t)(1 << 4))
/* merge of different types, fail separately */
#define RQF_MIXED_MERGE		((__force req_flags_t)(1 << 5))
/* track inflight for MQ */
#define RQF_MQ_INFLIGHT		((__force req_flags_t)(1 << 6))
/* don't call prep for this one */
#define RQF_DONTPREP		((__force req_flags_t)(1 << 7))
/* vaguely specified driver internal error.  Ignored by the block layer */
#define RQF_FAILED		((__force req_flags_t)(1 << 10))
/* don't warn about errors */
#define RQF_QUIET		((__force req_flags_t)(1 << 11))
/* elevator private data attached */
#define RQF_ELVPRIV		((__force req_flags_t)(1 << 12))
/* account into disk and partition IO statistics */
#define RQF_IO_STAT		((__force req_flags_t)(1 << 13))
/* runtime pm request */
#define RQF_PM			((__force req_flags_t)(1 << 15))
/* on IO scheduler merge hash */
#define RQF_HASHED		((__force req_flags_t)(1 << 16))
/* track IO completion time */
#define RQF_STATS		((__force req_flags_t)(1 << 17))
/* Look at ->special_vec for the actual data payload instead of the
   bio chain. */
#define RQF_SPECIAL_PAYLOAD	((__force req_flags_t)(1 << 18))
/* The per-zone write lock is held for this request */
#define RQF_ZONE_WRITE_LOCKED	((__force req_flags_t)(1 << 19))
/* already slept for hybrid poll */
#define RQF_MQ_POLL_SLEPT	((__force req_flags_t)(1 << 20))
/* ->timeout has been called, don't expire again */
#define RQF_TIMED_OUT		((__force req_flags_t)(1 << 21))

/* flags that prevent us from merging requests: */
#define RQF_NOMERGE_FLAGS \
	(RQF_STARTED | RQF_SOFTBARRIER | RQF_FLUSH_SEQ | RQF_SPECIAL_PAYLOAD)

/*
 * Request state for blk-mq.
 */
enum mq_rq_state {
	MQ_RQ_IDLE		= 0,
	MQ_RQ_IN_FLIGHT		= 1,
	MQ_RQ_COMPLETE		= 2,
};

/*
 * Try to put the fields that are referenced together in the same cacheline.
 *
 * If you modify this structure, make sure to update blk_rq_init() and
 * especially blk_mq_rq_ctx_init() to take care of the added fields.
 */
struct request {
	struct request_queue *q;
	struct blk_mq_ctx *mq_ctx;
	struct blk_mq_hw_ctx *mq_hctx;

unsigned int cmd_flags;		/* op and common flags */
	req_flags_t rq_flags;

int tag;
	int internal_tag;

/* the following two fields are internal, NEVER access directly */
	unsigned int __data_len;	/* total data len */
	sector_t __sector;		/* sector cursor */

struct bio *bio;
	struct bio *biotail;

struct list_head queuelist;

/*
	 * The hash is used inside the scheduler, and killed once the
	 * request reaches the dispatch list. The ipi_list is only used
	 * to queue the request for softirq completion, which is long
	 * after the request has been unhashed (and even removed from
	 * the dispatch list).
	 */
	union {
		struct hlist_node hash;	/* merge hash */
		struct llist_node ipi_list;
	};

/*
	 * The rb_node is only used inside the io scheduler, requests
	 * are pruned when moved to the dispatch queue. So let the
	 * completion_data share space with the rb_node.
	 */
	union {
		struct rb_node rb_node;	/* sort/lookup */
		struct bio_vec special_vec;
		void *completion_data;
		int error_count; /* for legacy drivers, don't use */
	};

/*
	 * Three pointers are available for the IO schedulers, if they need
	 * more they have to dynamically allocate it.  Flush requests are
	 * never put on the IO scheduler. So let the flush fields share
	 * space with the elevator data.
	 */
	union {
		struct {
			struct io_cq		*icq;
			void			*priv[2];
		} elv;

struct {
			unsigned int		seq;
			struct list_head	list;
			rq_end_io_fn		*saved_end_io;
		} flush;
	};

struct gendisk *rq_disk;
	struct block_device *part;
#ifdef CONFIG_BLK_RQ_ALLOC_TIME
	/* Time that the first bio started allocating this request. */
	u64 alloc_time_ns;
#endif
	/* Time that this request was allocated for this IO. */
	u64 start_time_ns;
	/* Time that I/O was submitted to the device. */
	u64 io_start_time_ns;

#ifdef CONFIG_BLK_WBT
	unsigned short wbt_flags;
#endif
	/*
	 * rq sectors used for blk stats. It has the same value
	 * with blk_rq_sectors(rq), except that it never be zeroed
	 * by completion.
	 */
	unsigned short stats_sectors;

/*
	 * Number of scatter-gather DMA addr+len pairs after
	 * physical address coalescing is performed.
	 */
	unsigned short nr_phys_segments;

#if defined(CONFIG_BLK_DEV_INTEGRITY)
	unsigned short nr_integrity_segments;
#endif

#ifdef CONFIG_BLK_INLINE_ENCRYPTION
	struct bio_crypt_ctx *crypt_ctx;
	struct blk_ksm_keyslot *crypt_keyslot;
#endif

unsigned short write_hint;
	unsigned short ioprio;

enum mq_rq_state state;
	refcount_t ref;

unsigned int timeout;
	unsigned long deadline;

union {
		struct __call_single_data csd;
		u64 fifo_time;
	};

/*
	 * completion callback.
	 */
	rq_end_io_fn *end_io;
	void *end_io_data;
};

static inline int blk_validate_block_size(unsigned int bsize)
{
	if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
		return -EINVAL;

return 0;
}

static inline bool blk_op_is_passthrough(unsigned int op)
{
	op &= REQ_OP_MASK;
	return op == REQ_OP_DRV_IN || op == REQ_OP_DRV_OUT;
}

static inline bool blk_rq_is_passthrough(struct request *rq)
{
	return blk_op_is_passthrough(req_op(rq));
}

static inline unsigned short req_get_ioprio(struct request *req)
{
	return req->ioprio;
}

#include <linux/elevator.h>

struct blk_queue_ctx;

struct bio_vec;

enum blk_eh_timer_return {
	BLK_EH_DONE,		/* drivers has completed the command */
	BLK_EH_RESET_TIMER,	/* reset timer and try again */
};

enum blk_queue_state {
	Queue_down,
	Queue_up,
};

#define BLK_TAG_ALLOC_FIFO 0 /* allocate starting from 0 */
#define BLK_TAG_ALLOC_RR 1 /* allocate starting from last allocated tag */

/*
 * Zoned block device models (zoned limit).
 *
 * Note: This needs to be ordered from the least to the most severe
 * restrictions for the inheritance in blk_stack_limits() to work.
 */
enum blk_zoned_model {
	BLK_ZONED_NONE = 0,	/* Regular block device */
	BLK_ZONED_HA,		/* Host-aware zoned block device */
	BLK_ZONED_HM,		/* Host-managed zoned block device */
};

/*
 * BLK_BOUNCE_NONE:	never bounce (default)
 * BLK_BOUNCE_HIGH:	bounce all highmem pages
 */
enum blk_bounce {
	BLK_BOUNCE_NONE,
	BLK_BOUNCE_HIGH,
};

struct queue_limits {
	enum blk_bounce		bounce;
	unsigned long		seg_boundary_mask;
	unsigned long		virt_boundary_mask;

unsigned int		max_hw_sectors;
	unsigned int		max_dev_sectors;
	unsigned int		chunk_sectors;
	unsigned int		max_sectors;
	unsigned int		max_segment_size;
	unsigned int		physical_block_size;
	unsigned int		logical_block_size;
	unsigned int		alignment_offset;
	unsigned int		io_min;
	unsigned int		io_opt;
	unsigned int		max_discard_sectors;
	unsigned int		max_hw_discard_sectors;
	unsigned int		max_write_same_sectors;
	unsigned int		max_write_zeroes_sectors;
	unsigned int		max_zone_append_sectors;
	unsigned int		discard_granularity;
	unsigned int		discard_alignment;
	unsigned int		zone_write_granularity;

unsigned short		max_segments;
	unsigned short		max_integrity_segments;
	unsigned short		max_discard_segments;

unsigned char		misaligned;
	unsigned char		discard_misaligned;
	unsigned char		raid_partial_stripes_expensive;
	enum blk_zoned_model	zoned;
};

typedef int (*report_zones_cb)(struct blk_zone *zone, unsigned int idx,
			       void *data);

void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model);

#ifdef CONFIG_BLK_DEV_ZONED

#define BLK_ALL_ZONES  ((unsigned int)-1)
int blkdev_report_zones(struct block_device *bdev, sector_t sector,
			unsigned int nr_zones, report_zones_cb cb, void *data);
unsigned int blkdev_nr_zones(struct gendisk *disk);
extern int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
			    sector_t sectors, sector_t nr_sectors,
			    gfp_t gfp_mask);
int blk_revalidate_disk_zones(struct gendisk *disk,
			      void (*update_driver_data)(struct gendisk *disk));

extern int blkdev_report_zones_ioctl(struct block_device *bdev, fmode_t mode,
				     unsigned int cmd, unsigned long arg);
extern int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode,
				  unsigned int cmd, unsigned long arg);

#else /* CONFIG_BLK_DEV_ZONED */

static inline unsigned int blkdev_nr_zones(struct gendisk *disk)
{
	return 0;
}

static inline int blkdev_report_zones_ioctl(struct block_device *bdev,
					    fmode_t mode, unsigned int cmd,
					    unsigned long arg)
{
	return -ENOTTY;
}

static inline int blkdev_zone_mgmt_ioctl(struct block_device *bdev,
					 fmode_t mode, unsigned int cmd,
					 unsigned long arg)
{
	return -ENOTTY;
}

#endif /* CONFIG_BLK_DEV_ZONED */

struct request_queue {
	struct request		*last_merge;
	struct elevator_queue	*elevator;

struct percpu_ref	q_usage_counter;

struct blk_queue_stats	*stats;
	struct rq_qos		*rq_qos;

const struct blk_mq_ops	*mq_ops;

/* sw queues */
	struct blk_mq_ctx __percpu	*queue_ctx;

unsigned int		queue_depth;

/* hw dispatch queues */
	struct blk_mq_hw_ctx	**queue_hw_ctx;
	unsigned int		nr_hw_queues;

/*
	 * The queue owner gets to use this for whatever they like.
	 * ll_rw_blk doesn't touch it.
	 */
	void			*queuedata;

/*
	 * various queue flags, see QUEUE_* below
	 */
	unsigned long		queue_flags;
	/*
	 * Number of contexts that have called blk_set_pm_only(). If this
	 * counter is above zero then only RQF_PM requests are processed.
	 */
	atomic_t		pm_only;

/*
	 * ida allocated id for this queue.  Used to index queues from
	 * ioctx.
	 */
	int			id;

spinlock_t		queue_lock;

struct gendisk		*disk;

/*
	 * queue kobject
	 */
	struct kobject kobj;

/*
	 * mq queue kobject
	 */
	struct kobject *mq_kobj;

#ifdef  CONFIG_BLK_DEV_INTEGRITY
	struct blk_integrity integrity;
#endif	/* CONFIG_BLK_DEV_INTEGRITY */

#ifdef CONFIG_PM
	struct device		*dev;
	enum rpm_status		rpm_status;
#endif

/*
	 * queue settings
	 */
	unsigned long		nr_requests;	/* Max # of requests */

unsigned int		dma_pad_mask;
	unsigned int		dma_alignment;

#ifdef CONFIG_BLK_INLINE_ENCRYPTION
	/* Inline crypto capabilities */
	struct blk_keyslot_manager *ksm;
#endif

unsigned int		rq_timeout;
	int			poll_nsec;

struct blk_stat_callback	*poll_cb;
	struct blk_rq_stat	poll_stat[BLK_MQ_POLL_STATS_BKTS];

struct timer_list	timeout;
	struct work_struct	timeout_work;

atomic_t		nr_active_requests_shared_sbitmap;

struct sbitmap_queue	sched_bitmap_tags;
	struct sbitmap_queue	sched_breserved_tags;

struct list_head	icq_list;
#ifdef CONFIG_BLK_CGROUP
	DECLARE_BITMAP		(blkcg_pols, BLKCG_MAX_POLS);
	struct blkcg_gq		*root_blkg;
	struct list_head	blkg_list;
#endif

struct queue_limits	limits;

unsigned int		required_elevator_features;

#ifdef CONFIG_BLK_DEV_ZONED
	/*
	 * Zoned block device information for request dispatch control.
	 * nr_zones is the total number of zones of the device. This is always
	 * 0 for regular block devices. conv_zones_bitmap is a bitmap of nr_zones
	 * bits which indicates if a zone is conventional (bit set) or
	 * sequential (bit clear). seq_zones_wlock is a bitmap of nr_zones
	 * bits which indicates if a zone is write locked, that is, if a write
	 * request targeting the zone was dispatched. All three fields are
	 * initialized by the low level device driver (e.g. scsi/sd.c).
	 * Stacking drivers (device mappers) may or may not initialize
	 * these fields.
	 *
	 * Reads of this information must be protected with blk_queue_enter() /
	 * blk_queue_exit(). Modifying this information is only allowed while
	 * no requests are being processed. See also blk_mq_freeze_queue() and
	 * blk_mq_unfreeze_queue().
	 */
	unsigned int		nr_zones;
	unsigned long		*conv_zones_bitmap;
	unsigned long		*seq_zones_wlock;
	unsigned int		max_open_zones;
	unsigned int		max_active_zones;
#endif /* CONFIG_BLK_DEV_ZONED */

int			node;
	struct mutex		debugfs_mutex;
#ifdef CONFIG_BLK_DEV_IO_TRACE
	struct blk_trace __rcu	*blk_trace;
#endif
	/*
	 * for flush operations
	 */
	struct blk_flush_queue	*fq;

struct list_head	requeue_list;
	spinlock_t		requeue_lock;
	struct delayed_work	requeue_work;

struct mutex		sysfs_lock;
	struct mutex		sysfs_dir_lock;

/*
	 * for reusing dead hctx instance in case of updating
	 * nr_hw_queues
	 */
	struct list_head	unused_hctx_list;
	spinlock_t		unused_hctx_lock;

int			mq_freeze_depth;

#ifdef CONFIG_BLK_DEV_THROTTLING
	/* Throttle data */
	struct throtl_data *td;
#endif
	struct rcu_head		rcu_head;
	wait_queue_head_t	mq_freeze_wq;
	/*
	 * Protect concurrent access to q_usage_counter by
	 * percpu_ref_kill() and percpu_ref_reinit().
	 */
	struct mutex		mq_freeze_lock;

struct blk_mq_tag_set	*tag_set;
	struct list_head	tag_set_list;
	struct bio_set		bio_split;

struct dentry		*debugfs_dir;

#ifdef CONFIG_BLK_DEBUG_FS
	struct dentry		*sched_debugfs_dir;
	struct dentry		*rqos_debugfs_dir;
#endif

bool			mq_sysfs_init_done;

size_t			cmd_size;

#define BLK_MAX_WRITE_HINTS	5
	u64			write_hints[BLK_MAX_WRITE_HINTS];
};

/* Keep blk_queue_flag_name[] in sync with the definitions below */
#define QUEUE_FLAG_STOPPED	0	/* queue is stopped */
#define QUEUE_FLAG_DYING	1	/* queue being torn down */
#define QUEUE_FLAG_NOMERGES     3	/* disable merge attempts */
#define QUEUE_FLAG_SAME_COMP	4	/* complete on same CPU-group */
#define QUEUE_FLAG_FAIL_IO	5	/* fake timeout */
#define QUEUE_FLAG_NONROT	6	/* non-rotational device (SSD) */
#define QUEUE_FLAG_VIRT		QUEUE_FLAG_NONROT /* paravirt device */
#define QUEUE_FLAG_IO_STAT	7	/* do disk/partitions IO accounting */
#define QUEUE_FLAG_DISCARD	8	/* supports DISCARD */
#define QUEUE_FLAG_NOXMERGES	9	/* No extended merges */
#define QUEUE_FLAG_ADD_RANDOM	10	/* Contributes to random pool */
#define QUEUE_FLAG_SECERASE	11	/* supports secure erase */
#define QUEUE_FLAG_SAME_FORCE	12	/* force complete on same CPU */
#define QUEUE_FLAG_DEAD		13	/* queue tear-down finished */
#define QUEUE_FLAG_INIT_DONE	14	/* queue is initialized */
#define QUEUE_FLAG_STABLE_WRITES 15	/* don't modify blks until WB is done */
#define QUEUE_FLAG_POLL		16	/* IO polling enabled if set */
#define QUEUE_FLAG_WC		17	/* Write back caching */
#define QUEUE_FLAG_FUA		18	/* device supports FUA writes */
#define QUEUE_FLAG_DAX		19	/* device supports DAX */
#define QUEUE_FLAG_STATS	20	/* track IO start and completion times */
#define QUEUE_FLAG_POLL_STATS	21	/* collecting stats for hybrid polling */
#define QUEUE_FLAG_REGISTERED	22	/* queue has been registered to a disk */
#define QUEUE_FLAG_SCSI_PASSTHROUGH 23	/* queue supports SCSI commands */
#define QUEUE_FLAG_QUIESCED	24	/* queue has been quiesced */
#define QUEUE_FLAG_PCI_P2PDMA	25	/* device supports PCI p2p requests */
#define QUEUE_FLAG_ZONE_RESETALL 26	/* supports Zone Reset All */
#define QUEUE_FLAG_RQ_ALLOC_TIME 27	/* record rq->alloc_time_ns */
#define QUEUE_FLAG_HCTX_ACTIVE	28	/* at least one blk-mq hctx is active */
#define QUEUE_FLAG_NOWAIT       29	/* device supports NOWAIT */

#define QUEUE_FLAG_MQ_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
				 (1 << QUEUE_FLAG_SAME_COMP) |		\
				 (1 << QUEUE_FLAG_NOWAIT))

void blk_queue_flag_set(unsigned int flag, struct request_queue *q);
void blk_queue_flag_clear(unsigned int flag, struct request_queue *q);
bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q);

#define blk_queue_stopped(q)	test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
#define blk_queue_dying(q)	test_bit(QUEUE_FLAG_DYING, &(q)->queue_flags)
#define blk_queue_dead(q)	test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags)
#define blk_queue_init_done(q)	test_bit(QUEUE_FLAG_INIT_DONE, &(q)->queue_flags)
#define blk_queue_nomerges(q)	test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
#define blk_queue_noxmerges(q)	\
	test_bit(QUEUE_FLAG_NOXMERGES, &(q)->queue_flags)
#define blk_queue_nonrot(q)	test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags)
#define blk_queue_stable_writes(q) \
	test_bit(QUEUE_FLAG_STABLE_WRITES, &(q)->queue_flags)
#define blk_queue_io_stat(q)	test_bit(QUEUE_FLAG_IO_STAT, &(q)->queue_flags)
#define blk_queue_add_random(q)	test_bit(QUEUE_FLAG_ADD_RANDOM, &(q)->queue_flags)
#define blk_queue_discard(q)	test_bit(QUEUE_FLAG_DISCARD, &(q)->queue_flags)
#define blk_queue_zone_resetall(q)	\
	test_bit(QUEUE_FLAG_ZONE_RESETALL, &(q)->queue_flags)
#define blk_queue_secure_erase(q) \
	(test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags))
#define blk_queue_dax(q)	test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags)
#define blk_queue_scsi_passthrough(q)	\
	test_bit(QUEUE_FLAG_SCSI_PASSTHROUGH, &(q)->queue_flags)
#define blk_queue_pci_p2pdma(q)	\
	test_bit(QUEUE_FLAG_PCI_P2PDMA, &(q)->queue_flags)
#ifdef CONFIG_BLK_RQ_ALLOC_TIME
#define blk_queue_rq_alloc_time(q)	\
	test_bit(QUEUE_FLAG_RQ_ALLOC_TIME, &(q)->queue_flags)
#else
#define blk_queue_rq_alloc_time(q)	false
#endif

#define blk_noretry_request(rq) \
	((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \
			     REQ_FAILFAST_DRIVER))
#define blk_queue_quiesced(q)	test_bit(QUEUE_FLAG_QUIESCED, &(q)->queue_flags)
#define blk_queue_pm_only(q)	atomic_read(&(q)->pm_only)
#define blk_queue_fua(q)	test_bit(QUEUE_FLAG_FUA, &(q)->queue_flags)
#define blk_queue_registered(q)	test_bit(QUEUE_FLAG_REGISTERED, &(q)->queue_flags)
#define blk_queue_nowait(q)	test_bit(QUEUE_FLAG_NOWAIT, &(q)->queue_flags)

extern void blk_set_pm_only(struct request_queue *q);
extern void blk_clear_pm_only(struct request_queue *q);

#define list_entry_rq(ptr)	list_entry((ptr), struct request, queuelist)

#define rq_data_dir(rq)		(op_is_write(req_op(rq)) ? WRITE : READ)

#define rq_dma_dir(rq) \
	(op_is_write(req_op(rq)) ? DMA_TO_DEVICE : DMA_FROM_DEVICE)

#define dma_map_bvec(dev, bv, dir, attrs) \
	dma_map_page_attrs(dev, (bv)->bv_page, (bv)->bv_offset, (bv)->bv_len, \
	(dir), (attrs))

static inline bool queue_is_mq(struct request_queue *q)
{
	return q->mq_ops;
}

#ifdef CONFIG_PM
static inline enum rpm_status queue_rpm_status(struct request_queue *q)
{
	return q->rpm_status;
}
#else
static inline enum rpm_status queue_rpm_status(struct request_queue *q)
{
	return RPM_ACTIVE;
}
#endif

static inline enum blk_zoned_model
blk_queue_zoned_model(struct request_queue *q)
{
	if (IS_ENABLED(CONFIG_BLK_DEV_ZONED))
		return q->limits.zoned;
	return BLK_ZONED_NONE;
}

static inline bool blk_queue_is_zoned(struct request_queue *q)
{
	switch (blk_queue_zoned_model(q)) {
	case BLK_ZONED_HA:
	case BLK_ZONED_HM:
		return true;
	default:
		return false;
	}
}

static inline sector_t blk_queue_zone_sectors(struct request_queue *q)
{
	return blk_queue_is_zoned(q) ? q->limits.chunk_sectors : 0;
}

#ifdef CONFIG_BLK_DEV_ZONED
static inline unsigned int blk_queue_nr_zones(struct request_queue *q)
{
	return blk_queue_is_zoned(q) ? q->nr_zones : 0;
}

static inline unsigned int blk_queue_zone_no(struct request_queue *q,
					     sector_t sector)
{
	if (!blk_queue_is_zoned(q))
		return 0;
	return sector >> ilog2(q->limits.chunk_sectors);
}

static inline bool blk_queue_zone_is_seq(struct request_queue *q,
					 sector_t sector)
{
	if (!blk_queue_is_zoned(q))
		return false;
	if (!q->conv_zones_bitmap)
		return true;
	return !test_bit(blk_queue_zone_no(q, sector), q->conv_zones_bitmap);
}

static inline void blk_queue_max_open_zones(struct request_queue *q,
		unsigned int max_open_zones)
{
	q->max_open_zones = max_open_zones;
}

static inline unsigned int queue_max_open_zones(const struct request_queue *q)
{
	return q->max_open_zones;
}

static inline void blk_queue_max_active_zones(struct request_queue *q,
		unsigned int max_active_zones)
{
	q->max_active_zones = max_active_zones;
}

static inline unsigned int queue_max_active_zones(const struct request_queue *q)
{
	return q->max_active_zones;
}
#else /* CONFIG_BLK_DEV_ZONED */
static inline unsigned int blk_queue_nr_zones(struct request_queue *q)
{
	return 0;
}
static inline bool blk_queue_zone_is_seq(struct request_queue *q,
					 sector_t sector)
{
	return false;
}
static inline unsigned int blk_queue_zone_no(struct request_queue *q,
					     sector_t sector)
{
	return 0;
}
static inline unsigned int queue_max_open_zones(const struct request_queue *q)
{
	return 0;
}
static inline unsigned int queue_max_active_zones(const struct request_queue *q)
{
	return 0;
}
#endif /* CONFIG_BLK_DEV_ZONED */

static inline bool rq_is_sync(struct request *rq)
{
	return op_is_sync(rq->cmd_flags);
}

static inline bool rq_mergeable(struct request *rq)
{
	if (blk_rq_is_passthrough(rq))
		return false;

if (req_op(rq) == REQ_OP_FLUSH)
		return false;

if (req_op(rq) == REQ_OP_WRITE_ZEROES)
		return false;

if (req_op(rq) == REQ_OP_ZONE_APPEND)
		return false;

if (rq->cmd_flags & REQ_NOMERGE_FLAGS)
		return false;
	if (rq->rq_flags & RQF_NOMERGE_FLAGS)
		return false;

return true;
}

static inline bool blk_write_same_mergeable(struct bio *a, struct bio *b)
{
	if (bio_page(a) == bio_page(b) &&
	    bio_offset(a) == bio_offset(b))
		return true;

return false;
}

static inline unsigned int blk_queue_depth(struct request_queue *q)
{
	if (q->queue_depth)
		return q->queue_depth;

return q->nr_requests;
}

/*
 * default timeout for SG_IO if none specified
 */
#define BLK_DEFAULT_SG_TIMEOUT	(60 * HZ)
#define BLK_MIN_SG_TIMEOUT	(7 * HZ)

struct rq_map_data {
	struct page **pages;
	int page_order;
	int nr_entries;
	unsigned long offset;
	int null_mapped;
	int from_user;
};

struct req_iterator {
	struct bvec_iter iter;
	struct bio *bio;
};

/* This should not be used directly - use rq_for_each_segment */
#define for_each_bio(_bio)		\
	for (; _bio; _bio = _bio->bi_next)
#define __rq_for_each_bio(_bio, rq)	\
	if ((rq->bio))			\
		for (_bio = (rq)->bio; _bio; _bio = _bio->bi_next)

#define rq_for_each_segment(bvl, _rq, _iter)			\
	__rq_for_each_bio(_iter.bio, _rq)			\
		bio_for_each_segment(bvl, _iter.bio, _iter.iter)

#define rq_for_each_bvec(bvl, _rq, _iter)			\
	__rq_for_each_bio(_iter.bio, _rq)			\
		bio_for_each_bvec(bvl, _iter.bio, _iter.iter)

#define rq_iter_last(bvec, _iter)				\
		(_iter.bio->bi_next == NULL &&			\
		 bio_iter_last(bvec, _iter.iter))

#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
# error	"You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
#endif
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
extern void rq_flush_dcache_pages(struct request *rq);
#else
static inline void rq_flush_dcache_pages(struct request *rq)
{
}
#endif

extern int blk_register_queue(struct gendisk *disk);
extern void blk_unregister_queue(struct gendisk *disk);
blk_qc_t submit_bio_noacct(struct bio *bio);
extern void blk_rq_init(struct request_queue *q, struct request *rq);
extern void blk_put_request(struct request *);
extern struct request *blk_get_request(struct request_queue *, unsigned int op,
				       blk_mq_req_flags_t flags);
extern int blk_lld_busy(struct request_queue *q);
extern int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
			     struct bio_set *bs, gfp_t gfp_mask,
			     int (*bio_ctr)(struct bio *, struct bio *, void *),
			     void *data);
extern void blk_rq_unprep_clone(struct request *rq);
extern blk_status_t blk_insert_cloned_request(struct request_queue *q,
				     struct request *rq);
int blk_rq_append_bio(struct request *rq, struct bio *bio);
extern void blk_queue_split(struct bio **);
extern int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags);
extern void blk_queue_exit(struct request_queue *q);
extern void blk_sync_queue(struct request_queue *q);
extern int blk_rq_map_user(struct request_queue *, struct request *,
			   struct rq_map_data *, void __user *, unsigned long,
			   gfp_t);
extern int blk_rq_unmap_user(struct bio *);
extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
			       struct rq_map_data *, const struct iov_iter *,
			       gfp_t);
extern void blk_execute_rq_nowait(struct gendisk *,
				  struct request *, int, rq_end_io_fn *);

blk_status_t blk_execute_rq(struct gendisk *bd_disk, struct request *rq,
			    int at_head);

/* Helper to convert REQ_OP_XXX to its string format XXX */
extern const char *blk_op_str(unsigned int op);

int blk_status_to_errno(blk_status_t status);
blk_status_t errno_to_blk_status(int errno);

int blk_poll(struct request_queue *q, blk_qc_t cookie, bool spin);

static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
{
	return bdev->bd_disk->queue;	/* this is never NULL */
}

/*
 * The basic unit of block I/O is a sector. It is used in a number of contexts
 * in Linux (blk, bio, genhd). The size of one sector is 512 = 2**9
 * bytes. Variables of type sector_t represent an offset or size that is a
 * multiple of 512 bytes. Hence these two constants.
 */
#ifndef SECTOR_SHIFT
#define SECTOR_SHIFT 9
#endif
#ifndef SECTOR_SIZE
#define SECTOR_SIZE (1 << SECTOR_SHIFT)
#endif

#define PAGE_SECTORS_SHIFT	(PAGE_SHIFT - SECTOR_SHIFT)
#define PAGE_SECTORS		(1 << PAGE_SECTORS_SHIFT)
#define SECTOR_MASK		(PAGE_SECTORS - 1)

/*
 * blk_rq_pos()			: the current sector
 * blk_rq_bytes()		: bytes left in the entire request
 * blk_rq_cur_bytes()		: bytes left in the current segment
 * blk_rq_err_bytes()		: bytes left till the next error boundary
 * blk_rq_sectors()		: sectors left in the entire request
 * blk_rq_cur_sectors()		: sectors left in the current segment
 * blk_rq_stats_sectors()	: sectors of the entire request used for stats
 */
static inline sector_t blk_rq_pos(const struct request *rq)
{
	return rq->__sector;
}

static inline unsigned int blk_rq_bytes(const struct request *rq)
{
	return rq->__data_len;
}

static inline int blk_rq_cur_bytes(const struct request *rq)
{
	return rq->bio ? bio_cur_bytes(rq->bio) : 0;
}

extern unsigned int blk_rq_err_bytes(const struct request *rq);

static inline unsigned int blk_rq_sectors(const struct request *rq)
{
	return blk_rq_bytes(rq) >> SECTOR_SHIFT;
}

static inline unsigned int blk_rq_cur_sectors(const struct request *rq)
{
	return blk_rq_cur_bytes(rq) >> SECTOR_SHIFT;
}

static inline unsigned int blk_rq_stats_sectors(const struct request *rq)
{
	return rq->stats_sectors;
}

#ifdef CONFIG_BLK_DEV_ZONED

/* Helper to convert BLK_ZONE_ZONE_XXX to its string format XXX */
const char *blk_zone_cond_str(enum blk_zone_cond zone_cond);

static inline unsigned int bio_zone_no(struct bio *bio)
{
	return blk_queue_zone_no(bdev_get_queue(bio->bi_bdev),
				 bio->bi_iter.bi_sector);
}

static inline unsigned int bio_zone_is_seq(struct bio *bio)
{
	return blk_queue_zone_is_seq(bdev_get_queue(bio->bi_bdev),
				     bio->bi_iter.bi_sector);
}

static inline unsigned int blk_rq_zone_no(struct request *rq)
{
	return blk_queue_zone_no(rq->q, blk_rq_pos(rq));
}

static inline unsigned int blk_rq_zone_is_seq(struct request *rq)
{
	return blk_queue_zone_is_seq(rq->q, blk_rq_pos(rq));
}
#endif /* CONFIG_BLK_DEV_ZONED */

/*
 * Some commands like WRITE SAME have a payload or data transfer size which
 * is different from the size of the request.  Any driver that supports such
 * commands using the RQF_SPECIAL_PAYLOAD flag needs to use this helper to
 * calculate the data transfer size.
 */
static inline unsigned int blk_rq_payload_bytes(struct request *rq)
{
	if (rq->rq_flags & RQF_SPECIAL_PAYLOAD)
		return rq->special_vec.bv_len;
	return blk_rq_bytes(rq);
}

/*
 * Return the first full biovec in the request.  The caller needs to check that
 * there are any bvecs before calling this helper.
 */
static inline struct bio_vec req_bvec(struct request *rq)
{
	if (rq->rq_flags & RQF_SPECIAL_PAYLOAD)
		return rq->special_vec;
	return mp_bvec_iter_bvec(rq->bio->bi_io_vec, rq->bio->bi_iter);
}

static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q,
						     int op)
{
	if (unlikely(op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE))
		return min(q->limits.max_discard_sectors,
			   UINT_MAX >> SECTOR_SHIFT);

if (unlikely(op == REQ_OP_WRITE_SAME))
		return q->limits.max_write_same_sectors;

if (unlikely(op == REQ_OP_WRITE_ZEROES))
		return q->limits.max_write_zeroes_sectors;

return q->limits.max_sectors;
}

/*
 * Return maximum size of a request at given offset. Only valid for
 * file system requests.
 */
static inline unsigned int blk_max_size_offset(struct request_queue *q,
					       sector_t offset,
					       unsigned int chunk_sectors)
{
	if (!chunk_sectors) {
		if (q->limits.chunk_sectors)
			chunk_sectors = q->limits.chunk_sectors;
		else
			return q->limits.max_sectors;
	}

if (likely(is_power_of_2(chunk_sectors)))
		chunk_sectors -= offset & (chunk_sectors - 1);
	else
		chunk_sectors -= sector_div(offset, chunk_sectors);

return min(q->limits.max_sectors, chunk_sectors);
}

static inline unsigned int blk_rq_get_max_sectors(struct request *rq,
						  sector_t offset)
{
	struct request_queue *q = rq->q;

if (blk_rq_is_passthrough(rq))
		return q->limits.max_hw_sectors;

if (!q->limits.chunk_sectors ||
	    req_op(rq) == REQ_OP_DISCARD ||
	    req_op(rq) == REQ_OP_SECURE_ERASE)
		return blk_queue_get_max_sectors(q, req_op(rq));

return min(blk_max_size_offset(q, offset, 0),
			blk_queue_get_max_sectors(q, req_op(rq)));
}

static inline unsigned int blk_rq_count_bios(struct request *rq)
{
	unsigned int nr_bios = 0;
	struct bio *bio;

__rq_for_each_bio(bio, rq)
		nr_bios++;

return nr_bios;
}

void blk_steal_bios(struct bio_list *list, struct request *rq);

/*
 * Request completion related functions.
 *
 * blk_update_request() completes given number of bytes and updates
 * the request without completing it.
 */
extern bool blk_update_request(struct request *rq, blk_status_t error,
			       unsigned int nr_bytes);

extern void blk_abort_request(struct request *);

/*
 * Access functions for manipulating queue properties
 */
extern void blk_cleanup_queue(struct request_queue *);
void blk_queue_bounce_limit(struct request_queue *q, enum blk_bounce limit);
extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int);
extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int);
extern void blk_queue_max_segments(struct request_queue *, unsigned short);
extern void blk_queue_max_discard_segments(struct request_queue *,
		unsigned short);
extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
extern void blk_queue_max_discard_sectors(struct request_queue *q,
		unsigned int max_discard_sectors);
extern void blk_queue_max_write_same_sectors(struct request_queue *q,
		unsigned int max_write_same_sectors);
extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
		unsigned int max_write_same_sectors);
extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
		unsigned int max_zone_append_sectors);
extern void blk_queue_physical_block_size(struct request_queue *, unsigned int);
void blk_queue_zone_write_granularity(struct request_queue *q,
				      unsigned int size);
extern void blk_queue_alignment_offset(struct request_queue *q,
				       unsigned int alignment);
void disk_update_readahead(struct gendisk *disk);
extern void blk_limits_io_min(struct queue_limits *limits, unsigned int min);
extern void blk_queue_io_min(struct request_queue *q, unsigned int min);
extern void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt);
extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt);
extern void blk_set_queue_depth(struct request_queue *q, unsigned int depth);
extern void blk_set_default_limits(struct queue_limits *lim);
extern void blk_set_stacking_limits(struct queue_limits *lim);
extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
			    sector_t offset);
extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
			      sector_t offset);
extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int);
extern void blk_queue_segment_boundary(struct request_queue *, unsigned long);
extern void blk_queue_virt_boundary(struct request_queue *, unsigned long);
extern void blk_queue_dma_alignment(struct request_queue *, int);
extern void blk_queue_update_dma_alignment(struct request_queue *, int);
extern void blk_queue_rq_timeout(struct request_queue *, unsigned int);
extern void blk_queue_write_cache(struct request_queue *q, bool enabled, bool fua);
extern void blk_queue_required_elevator_features(struct request_queue *q,
						 unsigned int features);
extern bool blk_queue_can_use_dma_map_merging(struct request_queue *q,
					      struct device *dev);

/*
 * Number of physical segments as sent to the device.
 *
 * Normally this is the number of discontiguous data segments sent by the
 * submitter.  But for data-less command like discard we might have no
 * actual data segments submitted, but the driver might have to add it's
 * own special payload.  In that case we still return 1 here so that this
 * special payload will be mapped.
 */
static inline unsigned short blk_rq_nr_phys_segments(struct request *rq)
{
	if (rq->rq_flags & RQF_SPECIAL_PAYLOAD)
		return 1;
	return rq->nr_phys_segments;
}

/*
 * Number of discard segments (or ranges) the driver needs to fill in.
 * Each discard bio merged into a request is counted as one segment.
 */
static inline unsigned short blk_rq_nr_discard_segments(struct request *rq)
{
	return max_t(unsigned short, rq->nr_phys_segments, 1);
}

int __blk_rq_map_sg(struct request_queue *q, struct request *rq,
		struct scatterlist *sglist, struct scatterlist **last_sg);
static inline int blk_rq_map_sg(struct request_queue *q, struct request *rq,
		struct scatterlist *sglist)
{
	struct scatterlist *last_sg = NULL;

return __blk_rq_map_sg(q, rq, sglist, &last_sg);
}
extern void blk_dump_rq_flags(struct request *, char *);

bool __must_check blk_get_queue(struct request_queue *);
extern void blk_put_queue(struct request_queue *);

void blk_mark_disk_dead(struct gendisk *disk);

#ifdef CONFIG_BLOCK
/*
 * blk_plug permits building a queue of related requests by holding the I/O
 * fragments for a short period. This allows merging of sequential requests
 * into single larger request. As the requests are moved from a per-task list to
 * the device's request_queue in a batch, this results in improved scalability
 * as the lock contention for request_queue lock is reduced.
 *
 * It is ok not to disable preemption when adding the request to the plug list
 * or when attempting a merge, because blk_schedule_flush_list() will only flush
 * the plug list when the task sleeps by itself. For details, please see
 * schedule() where blk_schedule_flush_plug() is called.
 */
struct blk_plug {
	struct list_head mq_list; /* blk-mq requests */
	struct list_head cb_list; /* md requires an unplug callback */
	unsigned short rq_count;
	bool multiple_queues;
	bool nowait;
};

struct blk_plug_cb;
typedef void (*blk_plug_cb_fn)(struct blk_plug_cb *, bool);
struct blk_plug_cb {
	struct list_head list;
	blk_plug_cb_fn callback;
	void *data;
};
extern struct blk_plug_cb *blk_check_plugged(blk_plug_cb_fn unplug,
					     void *data, int size);
extern void blk_start_plug(struct blk_plug *);
extern void blk_finish_plug(struct blk_plug *);
extern void blk_flush_plug_list(struct blk_plug *, bool);

static inline void blk_flush_plug(struct task_struct *tsk)
{
	struct blk_plug *plug = tsk->plug;

if (plug)
		blk_flush_plug_list(plug, false);
}

static inline void blk_schedule_flush_plug(struct task_struct *tsk)
{
	struct blk_plug *plug = tsk->plug;

if (plug)
		blk_flush_plug_list(plug, true);
}

static inline bool blk_needs_flush_plug(struct task_struct *tsk)
{
	struct blk_plug *plug = tsk->plug;

return plug &&
		 (!list_empty(&plug->mq_list) ||
		 !list_empty(&plug->cb_list));
}

int blkdev_issue_flush(struct block_device *bdev);
long nr_blockdev_pages(void);
#else /* CONFIG_BLOCK */
struct blk_plug {
};

static inline void blk_start_plug(struct blk_plug *plug)
{
}

static inline void blk_finish_plug(struct blk_plug *plug)
{
}

static inline void blk_flush_plug(struct task_struct *task)
{
}

static inline void blk_schedule_flush_plug(struct task_struct *task)
{
}

static inline bool blk_needs_flush_plug(struct task_struct *tsk)
{
	return false;
}

static inline int blkdev_issue_flush(struct block_device *bdev)
{
	return 0;
}

static inline long nr_blockdev_pages(void)
{
	return 0;
}
#endif /* CONFIG_BLOCK */

extern void blk_io_schedule(void);

extern int blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
		sector_t nr_sects, gfp_t gfp_mask, struct page *page);

#define BLKDEV_DISCARD_SECURE	(1 << 0)	/* issue a secure erase */

extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
		sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
		sector_t nr_sects, gfp_t gfp_mask, int flags,
		struct bio **biop);

#define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
#define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */

extern int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
		sector_t nr_sects, gfp_t gfp_mask, struct bio **biop,
		unsigned flags);
extern int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
		sector_t nr_sects, gfp_t gfp_mask, unsigned flags);

static inline int sb_issue_discard(struct super_block *sb, sector_t block,
		sector_t nr_blocks, gfp_t gfp_mask, unsigned long flags)
{
	return blkdev_issue_discard(sb->s_bdev,
				    block << (sb->s_blocksize_bits -
					      SECTOR_SHIFT),
				    nr_blocks << (sb->s_blocksize_bits -
						  SECTOR_SHIFT),
				    gfp_mask, flags);
}
static inline int sb_issue_zeroout(struct super_block *sb, sector_t block,
		sector_t nr_blocks, gfp_t gfp_mask)
{
	return blkdev_issue_zeroout(sb->s_bdev,
				    block << (sb->s_blocksize_bits -
					      SECTOR_SHIFT),
				    nr_blocks << (sb->s_blocksize_bits -
						  SECTOR_SHIFT),
				    gfp_mask, 0);
}

static inline bool bdev_is_partition(struct block_device *bdev)
{
	return bdev->bd_partno;
}

enum blk_default_limits {
	BLK_MAX_SEGMENTS	= 128,
	BLK_SAFE_MAX_SECTORS	= 255,
	BLK_DEF_MAX_SECTORS	= 2560,
	BLK_MAX_SEGMENT_SIZE	= 65536,
	BLK_SEG_BOUNDARY_MASK	= 0xFFFFFFFFUL,
};

static inline unsigned long queue_segment_boundary(const struct request_queue *q)
{
	return q->limits.seg_boundary_mask;
}

static inline unsigned long queue_virt_boundary(const struct request_queue *q)
{
	return q->limits.virt_boundary_mask;
}

static inline unsigned int queue_max_sectors(const struct request_queue *q)
{
	return q->limits.max_sectors;
}

static inline unsigned int queue_max_bytes(struct request_queue *q)
{
	return min_t(unsigned int, queue_max_sectors(q), INT_MAX >> 9) << 9;
}

static inline unsigned int queue_max_hw_sectors(const struct request_queue *q)
{
	return q->limits.max_hw_sectors;
}

static inline unsigned short queue_max_segments(const struct request_queue *q)
{
	return q->limits.max_segments;
}

static inline unsigned short queue_max_discard_segments(const struct request_queue *q)
{
	return q->limits.max_discard_segments;
}

static inline unsigned int queue_max_segment_size(const struct request_queue *q)
{
	return q->limits.max_segment_size;
}

static inline unsigned int queue_max_zone_append_sectors(const struct request_queue *q)
{

const struct queue_limits *l = &q->limits;

return min(l->max_zone_append_sectors, l->max_sectors);
}

static inline unsigned queue_logical_block_size(const struct request_queue *q)
{
	int retval = 512;

if (q && q->limits.logical_block_size)
		retval = q->limits.logical_block_size;

return retval;
}

static inline unsigned int bdev_logical_block_size(struct block_device *bdev)
{
	return queue_logical_block_size(bdev_get_queue(bdev));
}

static inline unsigned int queue_physical_block_size(const struct request_queue *q)
{
	return q->limits.physical_block_size;
}

static inline unsigned int bdev_physical_block_size(struct block_device *bdev)
{
	return queue_physical_block_size(bdev_get_queue(bdev));
}

static inline unsigned int queue_io_min(const struct request_queue *q)
{
	return q->limits.io_min;
}

static inline int bdev_io_min(struct block_device *bdev)
{
	return queue_io_min(bdev_get_queue(bdev));
}

static inline unsigned int queue_io_opt(const struct request_queue *q)
{
	return q->limits.io_opt;
}

static inline int bdev_io_opt(struct block_device *bdev)
{
	return queue_io_opt(bdev_get_queue(bdev));
}

static inline unsigned int
queue_zone_write_granularity(const struct request_queue *q)
{
	return q->limits.zone_write_granularity;
}

static inline unsigned int
bdev_zone_write_granularity(struct block_device *bdev)
{
	return queue_zone_write_granularity(bdev_get_queue(bdev));
}

static inline int queue_alignment_offset(const struct request_queue *q)
{
	if (q->limits.misaligned)
		return -1;

return q->limits.alignment_offset;
}

static inline int queue_limit_alignment_offset(struct queue_limits *lim, sector_t sector)
{
	unsigned int granularity = max(lim->physical_block_size, lim->io_min);
	unsigned int alignment = sector_div(sector, granularity >> SECTOR_SHIFT)
		<< SECTOR_SHIFT;

return (granularity + lim->alignment_offset - alignment) % granularity;
}

static inline int bdev_alignment_offset(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q->limits.misaligned)
		return -1;
	if (bdev_is_partition(bdev))
		return queue_limit_alignment_offset(&q->limits,
				bdev->bd_start_sect);
	return q->limits.alignment_offset;
}

static inline int queue_discard_alignment(const struct request_queue *q)
{
	if (q->limits.discard_misaligned)
		return -1;

return q->limits.discard_alignment;
}

static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector_t sector)
{
	unsigned int alignment, granularity, offset;

if (!lim->max_discard_sectors)
		return 0;

/* Why are these in bytes, not sectors? */
	alignment = lim->discard_alignment >> SECTOR_SHIFT;
	granularity = lim->discard_granularity >> SECTOR_SHIFT;
	if (!granularity)
		return 0;

/* Offset of the partition start in 'granularity' sectors */
	offset = sector_div(sector, granularity);

/* And why do we do this modulus *again* in blkdev_issue_discard()? */
	offset = (granularity + alignment - offset) % granularity;

/* Turn it back into bytes, gaah */
	return offset << SECTOR_SHIFT;
}

/*
 * Two cases of handling DISCARD merge:
 * If max_discard_segments > 1, the driver takes every bio
 * as a range and send them to controller together. The ranges
 * needn't to be contiguous.
 * Otherwise, the bios/requests will be handled as same as
 * others which should be contiguous.
 */
static inline bool blk_discard_mergable(struct request *req)
{
	if (req_op(req) == REQ_OP_DISCARD &&
	    queue_max_discard_segments(req->q) > 1)
		return true;
	return false;
}

static inline int bdev_discard_alignment(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (bdev_is_partition(bdev))
		return queue_limit_discard_alignment(&q->limits,
				bdev->bd_start_sect);
	return q->limits.discard_alignment;
}

static inline unsigned int bdev_write_same(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return q->limits.max_write_same_sectors;

return 0;
}

static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return q->limits.max_write_zeroes_sectors;

return 0;
}

static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return blk_queue_zoned_model(q);

return BLK_ZONED_NONE;
}

static inline bool bdev_is_zoned(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return blk_queue_is_zoned(q);

return false;
}

static inline sector_t bdev_zone_sectors(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return blk_queue_zone_sectors(q);
	return 0;
}

static inline unsigned int bdev_max_open_zones(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return queue_max_open_zones(q);
	return 0;
}

static inline unsigned int bdev_max_active_zones(struct block_device *bdev)
{
	struct request_queue *q = bdev_get_queue(bdev);

if (q)
		return queue_max_active_zones(q);
	return 0;
}

static inline int queue_dma_alignment(const struct request_queue *q)
{
	return q ? q->dma_alignment : 511;
}

static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr,
				 unsigned int len)
{
	unsigned int alignment = queue_dma_alignment(q) | q->dma_pad_mask;
	return !(addr & alignment) && !(len & alignment);
}

/* assumes size > 256 */
static inline unsigned int blksize_bits(unsigned int size)
{
	unsigned int bits = 8;
	do {
		bits++;
		size >>= 1;
	} while (size > 256);
	return bits;
}

static inline unsigned int block_size(struct block_device *bdev)
{
	return 1 << bdev->bd_inode->i_blkbits;
}

int kblockd_schedule_work(struct work_struct *work);
int kblockd_mod_delayed_work_on(int cpu, struct delayed_work *dwork, unsigned long delay);

#define MODULE_ALIAS_BLOCKDEV(major,minor) \
	MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))
#define MODULE_ALIAS_BLOCKDEV_MAJOR(major) \
	MODULE_ALIAS("block-major-" __stringify(major) "-*")

#if defined(CONFIG_BLK_DEV_INTEGRITY)

enum blk_integrity_flags {
	BLK_INTEGRITY_VERIFY		= 1 << 0,
	BLK_INTEGRITY_GENERATE		= 1 << 1,
	BLK_INTEGRITY_DEVICE_CAPABLE	= 1 << 2,
	BLK_INTEGRITY_IP_CHECKSUM	= 1 << 3,
};

struct blk_integrity_iter {
	void			*prot_buf;
	void			*data_buf;
	sector_t		seed;
	unsigned int		data_size;
	unsigned short		interval;
	const char		*disk_name;
};

typedef blk_status_t (integrity_processing_fn) (struct blk_integrity_iter *);
typedef void (integrity_prepare_fn) (struct request *);
typedef void (integrity_complete_fn) (struct request *, unsigned int);

struct blk_integrity_profile {
	integrity_processing_fn		*generate_fn;
	integrity_processing_fn		*verify_fn;
	integrity_prepare_fn		*prepare_fn;
	integrity_complete_fn		*complete_fn;
	const char			*name;
};

extern void blk_integrity_register(struct gendisk *, struct blk_integrity *);
extern void blk_integrity_unregister(struct gendisk *);
extern int blk_integrity_compare(struct gendisk *, struct gendisk *);
extern int blk_rq_map_integrity_sg(struct request_queue *, struct bio *,
				   struct scatterlist *);
extern int blk_rq_count_integrity_sg(struct request_queue *, struct bio *);

static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
{
	struct blk_integrity *bi = &disk->queue->integrity;

if (!bi->profile)
		return NULL;

return bi;
}

static inline
struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
{
	return blk_get_integrity(bdev->bd_disk);
}

static inline bool
blk_integrity_queue_supports_integrity(struct request_queue *q)
{
	return q->integrity.profile;
}

static inline bool blk_integrity_rq(struct request *rq)
{
	return rq->cmd_flags & REQ_INTEGRITY;
}

static inline void blk_queue_max_integrity_segments(struct request_queue *q,
						    unsigned int segs)
{
	q->limits.max_integrity_segments = segs;
}

static inline unsigned short
queue_max_integrity_segments(const struct request_queue *q)
{
	return q->limits.max_integrity_segments;
}

/**
 * bio_integrity_intervals - Return number of integrity intervals for a bio
 * @bi:		blk_integrity profile for device
 * @sectors:	Size of the bio in 512-byte sectors
 *
 * Description: The block layer calculates everything in 512 byte
 * sectors but integrity metadata is done in terms of the data integrity
 * interval size of the storage device.  Convert the block layer sectors
 * to the appropriate number of integrity intervals.
 */
static inline unsigned int bio_integrity_intervals(struct blk_integrity *bi,
						   unsigned int sectors)
{
	return sectors >> (bi->interval_exp - 9);
}

static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi,
					       unsigned int sectors)
{
	return bio_integrity_intervals(bi, sectors) * bi->tuple_size;
}

/*
 * Return the first bvec that contains integrity data.  Only drivers that are
 * limited to a single integrity segment should use this helper.
 */
static inline struct bio_vec *rq_integrity_vec(struct request *rq)
{
	if (WARN_ON_ONCE(queue_max_integrity_segments(rq->q) > 1))
		return NULL;
	return rq->bio->bi_integrity->bip_vec;
}

#else /* CONFIG_BLK_DEV_INTEGRITY */

struct bio;
struct block_device;
struct gendisk;
struct blk_integrity;

static inline int blk_integrity_rq(struct request *rq)
{
	return 0;
}
static inline int blk_rq_count_integrity_sg(struct request_queue *q,
					    struct bio *b)
{
	return 0;
}
static inline int blk_rq_map_integrity_sg(struct request_queue *q,
					  struct bio *b,
					  struct scatterlist *s)
{
	return 0;
}
static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)
{
	return NULL;
}
static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
{
	return NULL;
}
static inline bool
blk_integrity_queue_supports_integrity(struct request_queue *q)
{
	return false;
}
static inline int blk_integrity_compare(struct gendisk *a, struct gendisk *b)
{
	return 0;
}
static inline void blk_integrity_register(struct gendisk *d,
					 struct blk_integrity *b)
{
}
static inline void blk_integrity_unregister(struct gendisk *d)
{
}
static inline void blk_queue_max_integrity_segments(struct request_queue *q,
						    unsigned int segs)
{
}
static inline unsigned short queue_max_integrity_segments(const struct request_queue *q)
{
	return 0;
}

static inline unsigned int bio_integrity_intervals(struct blk_integrity *bi,
						   unsigned int sectors)
{
	return 0;
}

static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi,
					       unsigned int sectors)
{
	return 0;
}

static inline struct bio_vec *rq_integrity_vec(struct request *rq)
{
	return NULL;
}

#endif /* CONFIG_BLK_DEV_INTEGRITY */

#ifdef CONFIG_BLK_INLINE_ENCRYPTION

bool blk_ksm_register(struct blk_keyslot_manager *ksm, struct request_queue *q);

void blk_ksm_unregister(struct request_queue *q);

#else /* CONFIG_BLK_INLINE_ENCRYPTION */

static inline bool blk_ksm_register(struct blk_keyslot_manager *ksm,
				    struct request_queue *q)
{
	return true;
}

static inline void blk_ksm_unregister(struct request_queue *q) { }

#endif /* CONFIG_BLK_INLINE_ENCRYPTION */

struct block_device_operations {
	blk_qc_t (*submit_bio) (struct bio *bio);
	int (*open) (struct block_device *, fmode_t);
	void (*release) (struct gendisk *, fmode_t);
	int (*rw_page)(struct block_device *, sector_t, struct page *, unsigned int);
	int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
	int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
	unsigned int (*check_events) (struct gendisk *disk,
				      unsigned int clearing);
	void (*unlock_native_capacity) (struct gendisk *);
	int (*getgeo)(struct block_device *, struct hd_geometry *);
	int (*set_read_only)(struct block_device *bdev, bool ro);
	/* this callback is with swap_lock and sometimes page table lock held */
	void (*swap_slot_free_notify) (struct block_device *, unsigned long);
	int (*report_zones)(struct gendisk *, sector_t sector,
			unsigned int nr_zones, report_zones_cb cb, void *data);
	char *(*devnode)(struct gendisk *disk, umode_t *mode);
	struct module *owner;
	const struct pr_ops *pr_ops;

/*
	 * Special callback for probing GPT entry at a given sector.
	 * Needed by Android devices, used by GPT scanner and MMC blk
	 * driver.
	 */
	int (*alternative_gpt_sector)(struct gendisk *disk, sector_t *sector);
};

#ifdef CONFIG_COMPAT
extern int blkdev_compat_ptr_ioctl(struct block_device *, fmode_t,
				      unsigned int, unsigned long);
#else
#define blkdev_compat_ptr_ioctl NULL
#endif

extern int bdev_read_page(struct block_device *, sector_t, struct page *);
extern int bdev_write_page(struct block_device *, sector_t, struct page *,
						struct writeback_control *);

#ifdef CONFIG_BLK_DEV_ZONED
bool blk_req_needs_zone_write_lock(struct request *rq);
bool blk_req_zone_write_trylock(struct request *rq);
void __blk_req_zone_write_lock(struct request *rq);
void __blk_req_zone_write_unlock(struct request *rq);

static inline void blk_req_zone_write_lock(struct request *rq)
{
	if (blk_req_needs_zone_write_lock(rq))
		__blk_req_zone_write_lock(rq);
}

static inline void blk_req_zone_write_unlock(struct request *rq)
{
	if (rq->rq_flags & RQF_ZONE_WRITE_LOCKED)
		__blk_req_zone_write_unlock(rq);
}

static inline bool blk_req_zone_is_write_locked(struct request *rq)
{
	return rq->q->seq_zones_wlock &&
		test_bit(blk_rq_zone_no(rq), rq->q->seq_zones_wlock);
}

static inline bool blk_req_can_dispatch_to_zone(struct request *rq)
{
	if (!blk_req_needs_zone_write_lock(rq))
		return true;
	return !blk_req_zone_is_write_locked(rq);
}
#else
static inline bool blk_req_needs_zone_write_lock(struct request *rq)
{
	return false;
}

static inline void blk_req_zone_write_lock(struct request *rq)
{
}

static inline void blk_req_zone_write_unlock(struct request *rq)
{
}
static inline bool blk_req_zone_is_write_locked(struct request *rq)
{
	return false;
}

static inline bool blk_req_can_dispatch_to_zone(struct request *rq)
{
	return true;
}
#endif /* CONFIG_BLK_DEV_ZONED */

static inline void blk_wake_io_task(struct task_struct *waiter)
{
	/*
	 * If we're polling, the task itself is doing the completions. For
	 * that case, we don't need to signal a wakeup, it's enough to just
	 * mark us as RUNNING.
	 */
	if (waiter == current)
		__set_current_state(TASK_RUNNING);
	else
		wake_up_process(waiter);
}

unsigned long disk_start_io_acct(struct gendisk *disk, unsigned int sectors,
		unsigned int op);
void disk_end_io_acct(struct gendisk *disk, unsigned int op,
		unsigned long start_time);

void bio_start_io_acct_time(struct bio *bio, unsigned long start_time);
unsigned long bio_start_io_acct(struct bio *bio);
void bio_end_io_acct_remapped(struct bio *bio, unsigned long start_time,
		struct block_device *orig_bdev);

/**
 * bio_end_io_acct - end I/O accounting for bio based drivers
 * @bio:	bio to end account for
 * @start:	start time returned by bio_start_io_acct()
 */
static inline void bio_end_io_acct(struct bio *bio, unsigned long start_time)
{
	return bio_end_io_acct_remapped(bio, start_time, bio->bi_bdev);
}

int bdev_read_only(struct block_device *bdev);
int set_blocksize(struct block_device *bdev, int size);

const char *bdevname(struct block_device *bdev, char *buffer);
int lookup_bdev(const char *pathname, dev_t *dev);

void blkdev_show(struct seq_file *seqf, off_t offset);

#define BDEVNAME_SIZE	32	/* Largest string for a blockdev identifier */
#define BDEVT_SIZE	10	/* Largest string for MAJ:MIN for blkdev */
#ifdef CONFIG_BLOCK
#define BLKDEV_MAJOR_MAX	512
#else
#define BLKDEV_MAJOR_MAX	0
#endif

struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
		void *holder);
struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder);
int bd_prepare_to_claim(struct block_device *bdev, void *holder);
void bd_abort_claiming(struct block_device *bdev, void *holder);
void blkdev_put(struct block_device *bdev, fmode_t mode);

/* just for blk-cgroup, don't use elsewhere */
struct block_device *blkdev_get_no_open(dev_t dev);
void blkdev_put_no_open(struct block_device *bdev);

struct block_device *bdev_alloc(struct gendisk *disk, u8 partno);
void bdev_add(struct block_device *bdev, dev_t dev);
struct block_device *I_BDEV(struct inode *inode);
int truncate_bdev_range(struct block_device *bdev, fmode_t mode, loff_t lstart,
		loff_t lend);

#ifdef CONFIG_BLOCK
void invalidate_bdev(struct block_device *bdev);
int sync_blockdev(struct block_device *bdev);
#else
static inline void invalidate_bdev(struct block_device *bdev)
{
}
static inline int sync_blockdev(struct block_device *bdev)
{
	return 0;
}
#endif
int fsync_bdev(struct block_device *bdev);

int freeze_bdev(struct block_device *bdev);
int thaw_bdev(struct block_device *bdev);

#endif /* _LINUX_BLKDEV_H */

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Code Editor : blkdev.h