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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 : seqlock.h

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

/*
 * seqcount_t / seqlock_t - a reader-writer consistency mechanism with
 * lockless readers (read-only retry loops), and no writer starvation.
 *
 * See Documentation/locking/seqlock.rst
 *
 * Copyrights:
 * - Based on x86_64 vsyscall gettimeofday: Keith Owens, Andrea Arcangeli
 * - Sequence counters with associated locks, (C) 2020 Linutronix GmbH
 */

#include <linux/compiler.h>
#include <linux/kcsan-checks.h>
#include <linux/lockdep.h>
#include <linux/mutex.h>
#include <linux/ww_mutex.h>
#include <linux/preempt.h>
#include <linux/spinlock.h>

#include <asm/processor.h>

/*
 * The seqlock seqcount_t interface does not prescribe a precise sequence of
 * read begin/retry/end. For readers, typically there is a call to
 * read_seqcount_begin() and read_seqcount_retry(), however, there are more
 * esoteric cases which do not follow this pattern.
 *
 * As a consequence, we take the following best-effort approach for raw usage
 * via seqcount_t under KCSAN: upon beginning a seq-reader critical section,
 * pessimistically mark the next KCSAN_SEQLOCK_REGION_MAX memory accesses as
 * atomics; if there is a matching read_seqcount_retry() call, no following
 * memory operations are considered atomic. Usage of the seqlock_t interface
 * is not affected.
 */
#define KCSAN_SEQLOCK_REGION_MAX 1000

/*
 * Sequence counters (seqcount_t)
 *
 * This is the raw counting mechanism, without any writer protection.
 *
 * Write side critical sections must be serialized and non-preemptible.
 *
 * If readers can be invoked from hardirq or softirq contexts,
 * interrupts or bottom halves must also be respectively disabled before
 * entering the write section.
 *
 * This mechanism can't be used if the protected data contains pointers,
 * as the writer can invalidate a pointer that a reader is following.
 *
 * If the write serialization mechanism is one of the common kernel
 * locking primitives, use a sequence counter with associated lock
 * (seqcount_LOCKNAME_t) instead.
 *
 * If it's desired to automatically handle the sequence counter writer
 * serialization and non-preemptibility requirements, use a sequential
 * lock (seqlock_t) instead.
 *
 * See Documentation/locking/seqlock.rst
 */
typedef struct seqcount {
	unsigned sequence;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
	struct lockdep_map dep_map;
#endif
} seqcount_t;

static inline void __seqcount_init(seqcount_t *s, const char *name,
					  struct lock_class_key *key)
{
	/*
	 * Make sure we are not reinitializing a held lock:
	 */
	lockdep_init_map(&s->dep_map, name, key, 0);
	s->sequence = 0;
}

#ifdef CONFIG_DEBUG_LOCK_ALLOC

# define SEQCOUNT_DEP_MAP_INIT(lockname)				\
		.dep_map = { .name = #lockname }

/**
 * seqcount_init() - runtime initializer for seqcount_t
 * @s: Pointer to the seqcount_t instance
 */
# define seqcount_init(s)						\
	do {								\
		static struct lock_class_key __key;			\
		__seqcount_init((s), #s, &__key);			\
	} while (0)

static inline void seqcount_lockdep_reader_access(const seqcount_t *s)
{
	seqcount_t *l = (seqcount_t *)s;
	unsigned long flags;

local_irq_save(flags);
	seqcount_acquire_read(&l->dep_map, 0, 0, _RET_IP_);
	seqcount_release(&l->dep_map, _RET_IP_);
	local_irq_restore(flags);
}

#else
# define SEQCOUNT_DEP_MAP_INIT(lockname)
# define seqcount_init(s) __seqcount_init(s, NULL, NULL)
# define seqcount_lockdep_reader_access(x)
#endif

/**
 * SEQCNT_ZERO() - static initializer for seqcount_t
 * @name: Name of the seqcount_t instance
 */
#define SEQCNT_ZERO(name) { .sequence = 0, SEQCOUNT_DEP_MAP_INIT(name) }

/*
 * Sequence counters with associated locks (seqcount_LOCKNAME_t)
 *
 * A sequence counter which associates the lock used for writer
 * serialization at initialization time. This enables lockdep to validate
 * that the write side critical section is properly serialized.
 *
 * For associated locks which do not implicitly disable preemption,
 * preemption protection is enforced in the write side function.
 *
 * Lockdep is never used in any for the raw write variants.
 *
 * See Documentation/locking/seqlock.rst
 */

/*
 * For PREEMPT_RT, seqcount_LOCKNAME_t write side critical sections cannot
 * disable preemption. It can lead to higher latencies, and the write side
 * sections will not be able to acquire locks which become sleeping locks
 * (e.g. spinlock_t).
 *
 * To remain preemptible while avoiding a possible livelock caused by the
 * reader preempting the writer, use a different technique: let the reader
 * detect if a seqcount_LOCKNAME_t writer is in progress. If that is the
 * case, acquire then release the associated LOCKNAME writer serialization
 * lock. This will allow any possibly-preempted writer to make progress
 * until the end of its writer serialization lock critical section.
 *
 * This lock-unlock technique must be implemented for all of PREEMPT_RT
 * sleeping locks.  See Documentation/locking/locktypes.rst
 */
#if defined(CONFIG_LOCKDEP) || defined(CONFIG_PREEMPT_RT)
#define __SEQ_LOCK(expr)	expr
#else
#define __SEQ_LOCK(expr)
#endif

/*
 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKNAME associated
 * @seqcount:	The real sequence counter
 * @lock:	Pointer to the associated lock
 *
 * A plain sequence counter with external writer synchronization by
 * LOCKNAME @lock. The lock is associated to the sequence counter in the
 * static initializer or init function. This enables lockdep to validate
 * that the write side critical section is properly serialized.
 *
 * LOCKNAME:	raw_spinlock, spinlock, rwlock, mutex, or ww_mutex.
 */

/*
 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
 * @s:		Pointer to the seqcount_LOCKNAME_t instance
 * @lock:	Pointer to the associated lock
 */

#define seqcount_LOCKNAME_init(s, _lock, lockname)			\
	do {								\
		seqcount_##lockname##_t *____s = (s);			\
		seqcount_init(&____s->seqcount);			\
		__SEQ_LOCK(____s->lock = (_lock));			\
	} while (0)

#define seqcount_raw_spinlock_init(s, lock)	seqcount_LOCKNAME_init(s, lock, raw_spinlock)
#define seqcount_spinlock_init(s, lock)		seqcount_LOCKNAME_init(s, lock, spinlock)
#define seqcount_rwlock_init(s, lock)		seqcount_LOCKNAME_init(s, lock, rwlock)
#define seqcount_mutex_init(s, lock)		seqcount_LOCKNAME_init(s, lock, mutex)
#define seqcount_ww_mutex_init(s, lock)		seqcount_LOCKNAME_init(s, lock, ww_mutex)

/*
 * SEQCOUNT_LOCKNAME()	- Instantiate seqcount_LOCKNAME_t and helpers
 * seqprop_LOCKNAME_*()	- Property accessors for seqcount_LOCKNAME_t
 *
 * @lockname:		"LOCKNAME" part of seqcount_LOCKNAME_t
 * @locktype:		LOCKNAME canonical C data type
 * @preemptible:	preemptibility of above locktype
 * @lockmember:		argument for lockdep_assert_held()
 * @lockbase:		associated lock release function (prefix only)
 * @lock_acquire:	associated lock acquisition function (full call)
 */
#define SEQCOUNT_LOCKNAME(lockname, locktype, preemptible, lockmember, lockbase, lock_acquire) \
typedef struct seqcount_##lockname {					\
	seqcount_t		seqcount;				\
	__SEQ_LOCK(locktype	*lock);					\
} seqcount_##lockname##_t;						\
									\
static __always_inline seqcount_t *					\
__seqprop_##lockname##_ptr(seqcount_##lockname##_t *s)			\
{									\
	return &s->seqcount;						\
}									\
									\
static __always_inline unsigned						\
__seqprop_##lockname##_sequence(const seqcount_##lockname##_t *s)	\
{									\
	unsigned seq = READ_ONCE(s->seqcount.sequence);			\
									\
	if (!IS_ENABLED(CONFIG_PREEMPT_RT))				\
		return seq;						\
									\
	if (preemptible && unlikely(seq & 1)) {				\
		__SEQ_LOCK(lock_acquire);				\
		__SEQ_LOCK(lockbase##_unlock(s->lock));			\
									\
		/*							\
		 * Re-read the sequence counter since the (possibly	\
		 * preempted) writer made progress.			\
		 */							\
		seq = READ_ONCE(s->seqcount.sequence);			\
	}								\
									\
	return seq;							\
}									\
									\
static __always_inline bool						\
__seqprop_##lockname##_preemptible(const seqcount_##lockname##_t *s)	\
{									\
	if (!IS_ENABLED(CONFIG_PREEMPT_RT))				\
		return preemptible;					\
									\
	/* PREEMPT_RT relies on the above LOCK+UNLOCK */		\
	return false;							\
}									\
									\
static __always_inline void						\
__seqprop_##lockname##_assert(const seqcount_##lockname##_t *s)		\
{									\
	__SEQ_LOCK(lockdep_assert_held(lockmember));			\
}

/*
 * __seqprop() for seqcount_t
 */

static inline seqcount_t *__seqprop_ptr(seqcount_t *s)
{
	return s;
}

static inline unsigned __seqprop_sequence(const seqcount_t *s)
{
	return READ_ONCE(s->sequence);
}

static inline bool __seqprop_preemptible(const seqcount_t *s)
{
	return false;
}

static inline void __seqprop_assert(const seqcount_t *s)
{
	lockdep_assert_preemption_disabled();
}

#define __SEQ_RT	IS_ENABLED(CONFIG_PREEMPT_RT)

SEQCOUNT_LOCKNAME(raw_spinlock, raw_spinlock_t,  false,    s->lock,        raw_spin, raw_spin_lock(s->lock))
SEQCOUNT_LOCKNAME(spinlock,     spinlock_t,      __SEQ_RT, s->lock,        spin,     spin_lock(s->lock))
SEQCOUNT_LOCKNAME(rwlock,       rwlock_t,        __SEQ_RT, s->lock,        read,     read_lock(s->lock))
SEQCOUNT_LOCKNAME(mutex,        struct mutex,    true,     s->lock,        mutex,    mutex_lock(s->lock))
SEQCOUNT_LOCKNAME(ww_mutex,     struct ww_mutex, true,     &s->lock->base, ww_mutex, ww_mutex_lock(s->lock, NULL))

/*
 * SEQCNT_LOCKNAME_ZERO - static initializer for seqcount_LOCKNAME_t
 * @name:	Name of the seqcount_LOCKNAME_t instance
 * @lock:	Pointer to the associated LOCKNAME
 */

#define SEQCOUNT_LOCKNAME_ZERO(seq_name, assoc_lock) {			\
	.seqcount		= SEQCNT_ZERO(seq_name.seqcount),	\
	__SEQ_LOCK(.lock	= (assoc_lock))				\
}

#define SEQCNT_RAW_SPINLOCK_ZERO(name, lock)	SEQCOUNT_LOCKNAME_ZERO(name, lock)
#define SEQCNT_SPINLOCK_ZERO(name, lock)	SEQCOUNT_LOCKNAME_ZERO(name, lock)
#define SEQCNT_RWLOCK_ZERO(name, lock)		SEQCOUNT_LOCKNAME_ZERO(name, lock)
#define SEQCNT_MUTEX_ZERO(name, lock)		SEQCOUNT_LOCKNAME_ZERO(name, lock)
#define SEQCNT_WW_MUTEX_ZERO(name, lock) 	SEQCOUNT_LOCKNAME_ZERO(name, lock)

#define __seqprop_case(s, lockname, prop)				\
	seqcount_##lockname##_t: __seqprop_##lockname##_##prop((void *)(s))

#define __seqprop(s, prop) _Generic(*(s),				\
	seqcount_t:		__seqprop_##prop((void *)(s)),		\
	__seqprop_case((s),	raw_spinlock,	prop),			\
	__seqprop_case((s),	spinlock,	prop),			\
	__seqprop_case((s),	rwlock,		prop),			\
	__seqprop_case((s),	mutex,		prop),			\
	__seqprop_case((s),	ww_mutex,	prop))

#define seqprop_ptr(s)			__seqprop(s, ptr)
#define seqprop_sequence(s)		__seqprop(s, sequence)
#define seqprop_preemptible(s)		__seqprop(s, preemptible)
#define seqprop_assert(s)		__seqprop(s, assert)

/**
 * __read_seqcount_begin() - begin a seqcount_t read section w/o barrier
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * __read_seqcount_begin is like read_seqcount_begin, but has no smp_rmb()
 * barrier. Callers should ensure that smp_rmb() or equivalent ordering is
 * provided before actually loading any of the variables that are to be
 * protected in this critical section.
 *
 * Use carefully, only in critical code, and comment how the barrier is
 * provided.
 *
 * Return: count to be passed to read_seqcount_retry()
 */
#define __read_seqcount_begin(s)					\
({									\
	unsigned __seq;							\
									\
	while ((__seq = seqprop_sequence(s)) & 1)			\
		cpu_relax();						\
									\
	kcsan_atomic_next(KCSAN_SEQLOCK_REGION_MAX);			\
	__seq;								\
})

/**
 * raw_read_seqcount_begin() - begin a seqcount_t read section w/o lockdep
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Return: count to be passed to read_seqcount_retry()
 */
#define raw_read_seqcount_begin(s)					\
({									\
	unsigned _seq = __read_seqcount_begin(s);			\
									\
	smp_rmb();							\
	_seq;								\
})

/**
 * read_seqcount_begin() - begin a seqcount_t read critical section
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Return: count to be passed to read_seqcount_retry()
 */
#define read_seqcount_begin(s)						\
({									\
	seqcount_lockdep_reader_access(seqprop_ptr(s));			\
	raw_read_seqcount_begin(s);					\
})

/**
 * raw_read_seqcount() - read the raw seqcount_t counter value
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * raw_read_seqcount opens a read critical section of the given
 * seqcount_t, without any lockdep checking, and without checking or
 * masking the sequence counter LSB. Calling code is responsible for
 * handling that.
 *
 * Return: count to be passed to read_seqcount_retry()
 */
#define raw_read_seqcount(s)						\
({									\
	unsigned __seq = seqprop_sequence(s);				\
									\
	smp_rmb();							\
	kcsan_atomic_next(KCSAN_SEQLOCK_REGION_MAX);			\
	__seq;								\
})

/**
 * raw_seqcount_begin() - begin a seqcount_t read critical section w/o
 *                        lockdep and w/o counter stabilization
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * raw_seqcount_begin opens a read critical section of the given
 * seqcount_t. Unlike read_seqcount_begin(), this function will not wait
 * for the count to stabilize. If a writer is active when it begins, it
 * will fail the read_seqcount_retry() at the end of the read critical
 * section instead of stabilizing at the beginning of it.
 *
 * Use this only in special kernel hot paths where the read section is
 * small and has a high probability of success through other external
 * means. It will save a single branching instruction.
 *
 * Return: count to be passed to read_seqcount_retry()
 */
#define raw_seqcount_begin(s)						\
({									\
	/*								\
	 * If the counter is odd, let read_seqcount_retry() fail	\
	 * by decrementing the counter.					\
	 */								\
	raw_read_seqcount(s) & ~1;					\
})

/**
 * __read_seqcount_retry() - end a seqcount_t read section w/o barrier
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 * @start: count, from read_seqcount_begin()
 *
 * __read_seqcount_retry is like read_seqcount_retry, but has no smp_rmb()
 * barrier. Callers should ensure that smp_rmb() or equivalent ordering is
 * provided before actually loading any of the variables that are to be
 * protected in this critical section.
 *
 * Use carefully, only in critical code, and comment how the barrier is
 * provided.
 *
 * Return: true if a read section retry is required, else false
 */
#define __read_seqcount_retry(s, start)					\
	do___read_seqcount_retry(seqprop_ptr(s), start)

static inline int do___read_seqcount_retry(const seqcount_t *s, unsigned start)
{
	kcsan_atomic_next(0);
	return unlikely(READ_ONCE(s->sequence) != start);
}

/**
 * read_seqcount_retry() - end a seqcount_t read critical section
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 * @start: count, from read_seqcount_begin()
 *
 * read_seqcount_retry closes the read critical section of given
 * seqcount_t.  If the critical section was invalid, it must be ignored
 * (and typically retried).
 *
 * Return: true if a read section retry is required, else false
 */
#define read_seqcount_retry(s, start)					\
	do_read_seqcount_retry(seqprop_ptr(s), start)

static inline int do_read_seqcount_retry(const seqcount_t *s, unsigned start)
{
	smp_rmb();
	return do___read_seqcount_retry(s, start);
}

/**
 * raw_write_seqcount_begin() - start a seqcount_t write section w/o lockdep
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Context: check write_seqcount_begin()
 */
#define raw_write_seqcount_begin(s)					\
do {									\
	if (seqprop_preemptible(s))					\
		preempt_disable();					\
									\
	do_raw_write_seqcount_begin(seqprop_ptr(s));			\
} while (0)

static inline void do_raw_write_seqcount_begin(seqcount_t *s)
{
	kcsan_nestable_atomic_begin();
	s->sequence++;
	smp_wmb();
}

/**
 * raw_write_seqcount_end() - end a seqcount_t write section w/o lockdep
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Context: check write_seqcount_end()
 */
#define raw_write_seqcount_end(s)					\
do {									\
	do_raw_write_seqcount_end(seqprop_ptr(s));			\
									\
	if (seqprop_preemptible(s))					\
		preempt_enable();					\
} while (0)

static inline void do_raw_write_seqcount_end(seqcount_t *s)
{
	smp_wmb();
	s->sequence++;
	kcsan_nestable_atomic_end();
}

/**
 * write_seqcount_begin_nested() - start a seqcount_t write section with
 *                                 custom lockdep nesting level
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 * @subclass: lockdep nesting level
 *
 * See Documentation/locking/lockdep-design.rst
 * Context: check write_seqcount_begin()
 */
#define write_seqcount_begin_nested(s, subclass)			\
do {									\
	seqprop_assert(s);						\
									\
	if (seqprop_preemptible(s))					\
		preempt_disable();					\
									\
	do_write_seqcount_begin_nested(seqprop_ptr(s), subclass);	\
} while (0)

static inline void do_write_seqcount_begin_nested(seqcount_t *s, int subclass)
{
	do_raw_write_seqcount_begin(s);
	seqcount_acquire(&s->dep_map, subclass, 0, _RET_IP_);
}

/**
 * write_seqcount_begin() - start a seqcount_t write side critical section
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Context: sequence counter write side sections must be serialized and
 * non-preemptible. Preemption will be automatically disabled if and
 * only if the seqcount write serialization lock is associated, and
 * preemptible.  If readers can be invoked from hardirq or softirq
 * context, interrupts or bottom halves must be respectively disabled.
 */
#define write_seqcount_begin(s)						\
do {									\
	seqprop_assert(s);						\
									\
	if (seqprop_preemptible(s))					\
		preempt_disable();					\
									\
	do_write_seqcount_begin(seqprop_ptr(s));			\
} while (0)

static inline void do_write_seqcount_begin(seqcount_t *s)
{
	do_write_seqcount_begin_nested(s, 0);
}

/**
 * write_seqcount_end() - end a seqcount_t write side critical section
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * Context: Preemption will be automatically re-enabled if and only if
 * the seqcount write serialization lock is associated, and preemptible.
 */
#define write_seqcount_end(s)						\
do {									\
	do_write_seqcount_end(seqprop_ptr(s));				\
									\
	if (seqprop_preemptible(s))					\
		preempt_enable();					\
} while (0)

static inline void do_write_seqcount_end(seqcount_t *s)
{
	seqcount_release(&s->dep_map, _RET_IP_);
	do_raw_write_seqcount_end(s);
}

/**
 * raw_write_seqcount_barrier() - do a seqcount_t write barrier
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * This can be used to provide an ordering guarantee instead of the usual
 * consistency guarantee. It is one wmb cheaper, because it can collapse
 * the two back-to-back wmb()s.
 *
 * Note that writes surrounding the barrier should be declared atomic (e.g.
 * via WRITE_ONCE): a) to ensure the writes become visible to other threads
 * atomically, avoiding compiler optimizations; b) to document which writes are
 * meant to propagate to the reader critical section. This is necessary because
 * neither writes before and after the barrier are enclosed in a seq-writer
 * critical section that would ensure readers are aware of ongoing writes::
 *
 *	seqcount_t seq;
 *	bool X = true, Y = false;
 *
 *	void read(void)
 *	{
 *		bool x, y;
 *
 *		do {
 *			int s = read_seqcount_begin(&seq);
 *
 *			x = X; y = Y;
 *
 *		} while (read_seqcount_retry(&seq, s));
 *
 *		BUG_ON(!x && !y);
 *      }
 *
 *      void write(void)
 *      {
 *		WRITE_ONCE(Y, true);
 *
 *		raw_write_seqcount_barrier(seq);
 *
 *		WRITE_ONCE(X, false);
 *      }
 */
#define raw_write_seqcount_barrier(s)					\
	do_raw_write_seqcount_barrier(seqprop_ptr(s))

static inline void do_raw_write_seqcount_barrier(seqcount_t *s)
{
	kcsan_nestable_atomic_begin();
	s->sequence++;
	smp_wmb();
	s->sequence++;
	kcsan_nestable_atomic_end();
}

/**
 * write_seqcount_invalidate() - invalidate in-progress seqcount_t read
 *                               side operations
 * @s: Pointer to seqcount_t or any of the seqcount_LOCKNAME_t variants
 *
 * After write_seqcount_invalidate, no seqcount_t read side operations
 * will complete successfully and see data older than this.
 */
#define write_seqcount_invalidate(s)					\
	do_write_seqcount_invalidate(seqprop_ptr(s))

static inline void do_write_seqcount_invalidate(seqcount_t *s)
{
	smp_wmb();
	kcsan_nestable_atomic_begin();
	s->sequence+=2;
	kcsan_nestable_atomic_end();
}

/*
 * Latch sequence counters (seqcount_latch_t)
 *
 * A sequence counter variant where the counter even/odd value is used to
 * switch between two copies of protected data. This allows the read path,
 * typically NMIs, to safely interrupt the write side critical section.
 *
 * As the write sections are fully preemptible, no special handling for
 * PREEMPT_RT is needed.
 */
typedef struct {
	seqcount_t seqcount;
} seqcount_latch_t;

/**
 * SEQCNT_LATCH_ZERO() - static initializer for seqcount_latch_t
 * @seq_name: Name of the seqcount_latch_t instance
 */
#define SEQCNT_LATCH_ZERO(seq_name) {					\
	.seqcount		= SEQCNT_ZERO(seq_name.seqcount),	\
}

/**
 * seqcount_latch_init() - runtime initializer for seqcount_latch_t
 * @s: Pointer to the seqcount_latch_t instance
 */
#define seqcount_latch_init(s) seqcount_init(&(s)->seqcount)

/**
 * raw_read_seqcount_latch() - pick even/odd latch data copy
 * @s: Pointer to seqcount_latch_t
 *
 * See raw_write_seqcount_latch() for details and a full reader/writer
 * usage example.
 *
 * Return: sequence counter raw value. Use the lowest bit as an index for
 * picking which data copy to read. The full counter must then be checked
 * with read_seqcount_latch_retry().
 */
static inline unsigned raw_read_seqcount_latch(const seqcount_latch_t *s)
{
	/*
	 * Pairs with the first smp_wmb() in raw_write_seqcount_latch().
	 * Due to the dependent load, a full smp_rmb() is not needed.
	 */
	return READ_ONCE(s->seqcount.sequence);
}

/**
 * read_seqcount_latch_retry() - end a seqcount_latch_t read section
 * @s:		Pointer to seqcount_latch_t
 * @start:	count, from raw_read_seqcount_latch()
 *
 * Return: true if a read section retry is required, else false
 */
static inline int
read_seqcount_latch_retry(const seqcount_latch_t *s, unsigned start)
{
	return read_seqcount_retry(&s->seqcount, start);
}

/**
 * raw_write_seqcount_latch() - redirect latch readers to even/odd copy
 * @s: Pointer to seqcount_latch_t
 *
 * The latch technique is a multiversion concurrency control method that allows
 * queries during non-atomic modifications. If you can guarantee queries never
 * interrupt the modification -- e.g. the concurrency is strictly between CPUs
 * -- you most likely do not need this.
 *
 * Where the traditional RCU/lockless data structures rely on atomic
 * modifications to ensure queries observe either the old or the new state the
 * latch allows the same for non-atomic updates. The trade-off is doubling the
 * cost of storage; we have to maintain two copies of the entire data
 * structure.
 *
 * Very simply put: we first modify one copy and then the other. This ensures
 * there is always one copy in a stable state, ready to give us an answer.
 *
 * The basic form is a data structure like::
 *
 *	struct latch_struct {
 *		seqcount_latch_t	seq;
 *		struct data_struct	data[2];
 *	};
 *
 * Where a modification, which is assumed to be externally serialized, does the
 * following::
 *
 *	void latch_modify(struct latch_struct *latch, ...)
 *	{
 *		smp_wmb();	// Ensure that the last data[1] update is visible
 *		latch->seq.sequence++;
 *		smp_wmb();	// Ensure that the seqcount update is visible
 *
 *		modify(latch->data[0], ...);
 *
 *		smp_wmb();	// Ensure that the data[0] update is visible
 *		latch->seq.sequence++;
 *		smp_wmb();	// Ensure that the seqcount update is visible
 *
 *		modify(latch->data[1], ...);
 *	}
 *
 * The query will have a form like::
 *
 *	struct entry *latch_query(struct latch_struct *latch, ...)
 *	{
 *		struct entry *entry;
 *		unsigned seq, idx;
 *
 *		do {
 *			seq = raw_read_seqcount_latch(&latch->seq);
 *
 *			idx = seq & 0x01;
 *			entry = data_query(latch->data[idx], ...);
 *
 *		// This includes needed smp_rmb()
 *		} while (read_seqcount_latch_retry(&latch->seq, seq));
 *
 *		return entry;
 *	}
 *
 * So during the modification, queries are first redirected to data[1]. Then we
 * modify data[0]. When that is complete, we redirect queries back to data[0]
 * and we can modify data[1].
 *
 * NOTE:
 *
 *	The non-requirement for atomic modifications does _NOT_ include
 *	the publishing of new entries in the case where data is a dynamic
 *	data structure.
 *
 *	An iteration might start in data[0] and get suspended long enough
 *	to miss an entire modification sequence, once it resumes it might
 *	observe the new entry.
 *
 * NOTE2:
 *
 *	When data is a dynamic data structure; one should use regular RCU
 *	patterns to manage the lifetimes of the objects within.
 */
static inline void raw_write_seqcount_latch(seqcount_latch_t *s)
{
	smp_wmb();	/* prior stores before incrementing "sequence" */
	s->seqcount.sequence++;
	smp_wmb();      /* increment "sequence" before following stores */
}

/*
 * Sequential locks (seqlock_t)
 *
 * Sequence counters with an embedded spinlock for writer serialization
 * and non-preemptibility.
 *
 * For more info, see:
 *    - Comments on top of seqcount_t
 *    - Documentation/locking/seqlock.rst
 */
typedef struct {
	/*
	 * Make sure that readers don't starve writers on PREEMPT_RT: use
	 * seqcount_spinlock_t instead of seqcount_t. Check __SEQ_LOCK().
	 */
	seqcount_spinlock_t seqcount;
	spinlock_t lock;
} seqlock_t;

#define __SEQLOCK_UNLOCKED(lockname)					\
	{								\
		.seqcount = SEQCNT_SPINLOCK_ZERO(lockname, &(lockname).lock), \
		.lock =	__SPIN_LOCK_UNLOCKED(lockname)			\
	}

/**
 * seqlock_init() - dynamic initializer for seqlock_t
 * @sl: Pointer to the seqlock_t instance
 */
#define seqlock_init(sl)						\
	do {								\
		spin_lock_init(&(sl)->lock);				\
		seqcount_spinlock_init(&(sl)->seqcount, &(sl)->lock);	\
	} while (0)

/**
 * DEFINE_SEQLOCK(sl) - Define a statically allocated seqlock_t
 * @sl: Name of the seqlock_t instance
 */
#define DEFINE_SEQLOCK(sl) \
		seqlock_t sl = __SEQLOCK_UNLOCKED(sl)

/**
 * read_seqbegin() - start a seqlock_t read side critical section
 * @sl: Pointer to seqlock_t
 *
 * Return: count, to be passed to read_seqretry()
 */
static inline unsigned read_seqbegin(const seqlock_t *sl)
{
	unsigned ret = read_seqcount_begin(&sl->seqcount);

kcsan_atomic_next(0);  /* non-raw usage, assume closing read_seqretry() */
	kcsan_flat_atomic_begin();
	return ret;
}

/**
 * read_seqretry() - end a seqlock_t read side section
 * @sl: Pointer to seqlock_t
 * @start: count, from read_seqbegin()
 *
 * read_seqretry closes the read side critical section of given seqlock_t.
 * If the critical section was invalid, it must be ignored (and typically
 * retried).
 *
 * Return: true if a read section retry is required, else false
 */
static inline unsigned read_seqretry(const seqlock_t *sl, unsigned start)
{
	/*
	 * Assume not nested: read_seqretry() may be called multiple times when
	 * completing read critical section.
	 */
	kcsan_flat_atomic_end();

return read_seqcount_retry(&sl->seqcount, start);
}

/*
 * For all seqlock_t write side functions, use the the internal
 * do_write_seqcount_begin() instead of generic write_seqcount_begin().
 * This way, no redundant lockdep_assert_held() checks are added.
 */

/**
 * write_seqlock() - start a seqlock_t write side critical section
 * @sl: Pointer to seqlock_t
 *
 * write_seqlock opens a write side critical section for the given
 * seqlock_t.  It also implicitly acquires the spinlock_t embedded inside
 * that sequential lock. All seqlock_t write side sections are thus
 * automatically serialized and non-preemptible.
 *
 * Context: if the seqlock_t read section, or other write side critical
 * sections, can be invoked from hardirq or softirq contexts, use the
 * _irqsave or _bh variants of this function instead.
 */
static inline void write_seqlock(seqlock_t *sl)
{
	spin_lock(&sl->lock);
	do_write_seqcount_begin(&sl->seqcount.seqcount);
}

/**
 * write_sequnlock() - end a seqlock_t write side critical section
 * @sl: Pointer to seqlock_t
 *
 * write_sequnlock closes the (serialized and non-preemptible) write side
 * critical section of given seqlock_t.
 */
static inline void write_sequnlock(seqlock_t *sl)
{
	do_write_seqcount_end(&sl->seqcount.seqcount);
	spin_unlock(&sl->lock);
}

/**
 * write_seqlock_bh() - start a softirqs-disabled seqlock_t write section
 * @sl: Pointer to seqlock_t
 *
 * _bh variant of write_seqlock(). Use only if the read side section, or
 * other write side sections, can be invoked from softirq contexts.
 */
static inline void write_seqlock_bh(seqlock_t *sl)
{
	spin_lock_bh(&sl->lock);
	do_write_seqcount_begin(&sl->seqcount.seqcount);
}

/**
 * write_sequnlock_bh() - end a softirqs-disabled seqlock_t write section
 * @sl: Pointer to seqlock_t
 *
 * write_sequnlock_bh closes the serialized, non-preemptible, and
 * softirqs-disabled, seqlock_t write side critical section opened with
 * write_seqlock_bh().
 */
static inline void write_sequnlock_bh(seqlock_t *sl)
{
	do_write_seqcount_end(&sl->seqcount.seqcount);
	spin_unlock_bh(&sl->lock);
}

/**
 * write_seqlock_irq() - start a non-interruptible seqlock_t write section
 * @sl: Pointer to seqlock_t
 *
 * _irq variant of write_seqlock(). Use only if the read side section, or
 * other write sections, can be invoked from hardirq contexts.
 */
static inline void write_seqlock_irq(seqlock_t *sl)
{
	spin_lock_irq(&sl->lock);
	do_write_seqcount_begin(&sl->seqcount.seqcount);
}

/**
 * write_sequnlock_irq() - end a non-interruptible seqlock_t write section
 * @sl: Pointer to seqlock_t
 *
 * write_sequnlock_irq closes the serialized and non-interruptible
 * seqlock_t write side section opened with write_seqlock_irq().
 */
static inline void write_sequnlock_irq(seqlock_t *sl)
{
	do_write_seqcount_end(&sl->seqcount.seqcount);
	spin_unlock_irq(&sl->lock);
}

static inline unsigned long __write_seqlock_irqsave(seqlock_t *sl)
{
	unsigned long flags;

spin_lock_irqsave(&sl->lock, flags);
	do_write_seqcount_begin(&sl->seqcount.seqcount);
	return flags;
}

/**
 * write_seqlock_irqsave() - start a non-interruptible seqlock_t write
 *                           section
 * @lock:  Pointer to seqlock_t
 * @flags: Stack-allocated storage for saving caller's local interrupt
 *         state, to be passed to write_sequnlock_irqrestore().
 *
 * _irqsave variant of write_seqlock(). Use it only if the read side
 * section, or other write sections, can be invoked from hardirq context.
 */
#define write_seqlock_irqsave(lock, flags)				\
	do { flags = __write_seqlock_irqsave(lock); } while (0)

/**
 * write_sequnlock_irqrestore() - end non-interruptible seqlock_t write
 *                                section
 * @sl:    Pointer to seqlock_t
 * @flags: Caller's saved interrupt state, from write_seqlock_irqsave()
 *
 * write_sequnlock_irqrestore closes the serialized and non-interruptible
 * seqlock_t write section previously opened with write_seqlock_irqsave().
 */
static inline void
write_sequnlock_irqrestore(seqlock_t *sl, unsigned long flags)
{
	do_write_seqcount_end(&sl->seqcount.seqcount);
	spin_unlock_irqrestore(&sl->lock, flags);
}

/**
 * read_seqlock_excl() - begin a seqlock_t locking reader section
 * @sl:	Pointer to seqlock_t
 *
 * read_seqlock_excl opens a seqlock_t locking reader critical section.  A
 * locking reader exclusively locks out *both* other writers *and* other
 * locking readers, but it does not update the embedded sequence number.
 *
 * Locking readers act like a normal spin_lock()/spin_unlock().
 *
 * Context: if the seqlock_t write section, *or other read sections*, can
 * be invoked from hardirq or softirq contexts, use the _irqsave or _bh
 * variant of this function instead.
 *
 * The opened read section must be closed with read_sequnlock_excl().
 */
static inline void read_seqlock_excl(seqlock_t *sl)
{
	spin_lock(&sl->lock);
}

/**
 * read_sequnlock_excl() - end a seqlock_t locking reader critical section
 * @sl: Pointer to seqlock_t
 */
static inline void read_sequnlock_excl(seqlock_t *sl)
{
	spin_unlock(&sl->lock);
}

/**
 * read_seqlock_excl_bh() - start a seqlock_t locking reader section with
 *			    softirqs disabled
 * @sl: Pointer to seqlock_t
 *
 * _bh variant of read_seqlock_excl(). Use this variant only if the
 * seqlock_t write side section, *or other read sections*, can be invoked
 * from softirq contexts.
 */
static inline void read_seqlock_excl_bh(seqlock_t *sl)
{
	spin_lock_bh(&sl->lock);
}

/**
 * read_sequnlock_excl_bh() - stop a seqlock_t softirq-disabled locking
 *			      reader section
 * @sl: Pointer to seqlock_t
 */
static inline void read_sequnlock_excl_bh(seqlock_t *sl)
{
	spin_unlock_bh(&sl->lock);
}

/**
 * read_seqlock_excl_irq() - start a non-interruptible seqlock_t locking
 *			     reader section
 * @sl: Pointer to seqlock_t
 *
 * _irq variant of read_seqlock_excl(). Use this only if the seqlock_t
 * write side section, *or other read sections*, can be invoked from a
 * hardirq context.
 */
static inline void read_seqlock_excl_irq(seqlock_t *sl)
{
	spin_lock_irq(&sl->lock);
}

/**
 * read_sequnlock_excl_irq() - end an interrupts-disabled seqlock_t
 *                             locking reader section
 * @sl: Pointer to seqlock_t
 */
static inline void read_sequnlock_excl_irq(seqlock_t *sl)
{
	spin_unlock_irq(&sl->lock);
}

static inline unsigned long __read_seqlock_excl_irqsave(seqlock_t *sl)
{
	unsigned long flags;

spin_lock_irqsave(&sl->lock, flags);
	return flags;
}

/**
 * read_seqlock_excl_irqsave() - start a non-interruptible seqlock_t
 *				 locking reader section
 * @lock:  Pointer to seqlock_t
 * @flags: Stack-allocated storage for saving caller's local interrupt
 *         state, to be passed to read_sequnlock_excl_irqrestore().
 *
 * _irqsave variant of read_seqlock_excl(). Use this only if the seqlock_t
 * write side section, *or other read sections*, can be invoked from a
 * hardirq context.
 */
#define read_seqlock_excl_irqsave(lock, flags)				\
	do { flags = __read_seqlock_excl_irqsave(lock); } while (0)

/**
 * read_sequnlock_excl_irqrestore() - end non-interruptible seqlock_t
 *				      locking reader section
 * @sl:    Pointer to seqlock_t
 * @flags: Caller saved interrupt state, from read_seqlock_excl_irqsave()
 */
static inline void
read_sequnlock_excl_irqrestore(seqlock_t *sl, unsigned long flags)
{
	spin_unlock_irqrestore(&sl->lock, flags);
}

/**
 * read_seqbegin_or_lock() - begin a seqlock_t lockless or locking reader
 * @lock: Pointer to seqlock_t
 * @seq : Marker and return parameter. If the passed value is even, the
 * reader will become a *lockless* seqlock_t reader as in read_seqbegin().
 * If the passed value is odd, the reader will become a *locking* reader
 * as in read_seqlock_excl().  In the first call to this function, the
 * caller *must* initialize and pass an even value to @seq; this way, a
 * lockless read can be optimistically tried first.
 *
 * read_seqbegin_or_lock is an API designed to optimistically try a normal
 * lockless seqlock_t read section first.  If an odd counter is found, the
 * lockless read trial has failed, and the next read iteration transforms
 * itself into a full seqlock_t locking reader.
 *
 * This is typically used to avoid seqlock_t lockless readers starvation
 * (too much retry loops) in the case of a sharp spike in write side
 * activity.
 *
 * Context: if the seqlock_t write section, *or other read sections*, can
 * be invoked from hardirq or softirq contexts, use the _irqsave or _bh
 * variant of this function instead.
 *
 * Check Documentation/locking/seqlock.rst for template example code.
 *
 * Return: the encountered sequence counter value, through the @seq
 * parameter, which is overloaded as a return parameter. This returned
 * value must be checked with need_seqretry(). If the read section need to
 * be retried, this returned value must also be passed as the @seq
 * parameter of the next read_seqbegin_or_lock() iteration.
 */
static inline void read_seqbegin_or_lock(seqlock_t *lock, int *seq)
{
	if (!(*seq & 1))	/* Even */
		*seq = read_seqbegin(lock);
	else			/* Odd */
		read_seqlock_excl(lock);
}

/**
 * need_seqretry() - validate seqlock_t "locking or lockless" read section
 * @lock: Pointer to seqlock_t
 * @seq: sequence count, from read_seqbegin_or_lock()
 *
 * Return: true if a read section retry is required, false otherwise
 */
static inline int need_seqretry(seqlock_t *lock, int seq)
{
	return !(seq & 1) && read_seqretry(lock, seq);
}

/**
 * done_seqretry() - end seqlock_t "locking or lockless" reader section
 * @lock: Pointer to seqlock_t
 * @seq: count, from read_seqbegin_or_lock()
 *
 * done_seqretry finishes the seqlock_t read side critical section started
 * with read_seqbegin_or_lock() and validated by need_seqretry().
 */
static inline void done_seqretry(seqlock_t *lock, int seq)
{
	if (seq & 1)
		read_sequnlock_excl(lock);
}

/**
 * read_seqbegin_or_lock_irqsave() - begin a seqlock_t lockless reader, or
 *                                   a non-interruptible locking reader
 * @lock: Pointer to seqlock_t
 * @seq:  Marker and return parameter. Check read_seqbegin_or_lock().
 *
 * This is the _irqsave variant of read_seqbegin_or_lock(). Use it only if
 * the seqlock_t write section, *or other read sections*, can be invoked
 * from hardirq context.
 *
 * Note: Interrupts will be disabled only for "locking reader" mode.
 *
 * Return:
 *
 *   1. The saved local interrupts state in case of a locking reader, to
 *      be passed to done_seqretry_irqrestore().
 *
 *   2. The encountered sequence counter value, returned through @seq
 *      overloaded as a return parameter. Check read_seqbegin_or_lock().
 */
static inline unsigned long
read_seqbegin_or_lock_irqsave(seqlock_t *lock, int *seq)
{
	unsigned long flags = 0;

if (!(*seq & 1))	/* Even */
		*seq = read_seqbegin(lock);
	else			/* Odd */
		read_seqlock_excl_irqsave(lock, flags);

return flags;
}

/**
 * done_seqretry_irqrestore() - end a seqlock_t lockless reader, or a
 *				non-interruptible locking reader section
 * @lock:  Pointer to seqlock_t
 * @seq:   Count, from read_seqbegin_or_lock_irqsave()
 * @flags: Caller's saved local interrupt state in case of a locking
 *	   reader, also from read_seqbegin_or_lock_irqsave()
 *
 * This is the _irqrestore variant of done_seqretry(). The read section
 * must've been opened with read_seqbegin_or_lock_irqsave(), and validated
 * by need_seqretry().
 */
static inline void
done_seqretry_irqrestore(seqlock_t *lock, int seq, unsigned long flags)
{
	if (seq & 1)
		read_sequnlock_excl_irqrestore(lock, flags);
}
#endif /* __LINUX_SEQLOCK_H */

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Code Editor : seqlock.h