Gecko [ oric.aiou.edu.pk ]

/ usr / src / linux-headers-5.4.0-204 / include / linux / [ HOME SHELL ]

Name	Size	Permission
amba	[ 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
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
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
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
ulpi	[ DIR ]	drwxr-xr-x
unaligned	[ DIR ]	drwxr-xr-x
usb	[ DIR ]	drwxr-xr-x
wimax	[ 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	37.08 KB	-rw-r--r--
acpi_dma.h	3.08 KB	-rw-r--r--
acpi_iort.h	2.22 KB	-rw-r--r--
acpi_pmtmr.h	674 B	-rw-r--r--
adb.h	1.79 KB	-rw-r--r--
adfs_fs.h	574 B	-rw-r--r--
adxl.h	310 B	-rw-r--r--
aer.h	1.73 KB	-rw-r--r--
agp_backend.h	3.45 KB	-rw-r--r--
agpgart.h	3.82 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	1.83 KB	-rw-r--r--
alcor_pci.h	8.8 KB	-rw-r--r--
altera_jtaguart.h	379 B	-rw-r--r--
altera_uart.h	397 B	-rw-r--r--
amd-iommu.h	6.45 KB	-rw-r--r--
anon_inodes.h	494 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	1.64 KB	-rw-r--r--
arm-cci.h	1.36 KB	-rw-r--r--
arm-smccc.h	12.39 KB	-rw-r--r--
arm_sdei.h	2.59 KB	-rw-r--r--
armada-37xx-rwtm-mailbox.h	432 B	-rw-r--r--
ascii85.h	532 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--
assoc_array.h	2.88 KB	-rw-r--r--
assoc_array_priv.h	5.3 KB	-rw-r--r--
async.h	4.39 KB	-rw-r--r--
async_tx.h	6.21 KB	-rw-r--r--
ata.h	32.95 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_suni.h	253 B	-rw-r--r--
atm_tcp.h	511 B	-rw-r--r--
atmdev.h	10.21 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-fallback.h	52.3 KB	-rw-r--r--
atomic.h	2.2 KB	-rw-r--r--
attribute_container.h	2.47 KB	-rw-r--r--
audit.h	18.23 KB	-rw-r--r--
auto_dev-ioctl.h	296 B	-rw-r--r--
auto_fs.h	278 B	-rw-r--r--
auxvec.h	304 B	-rw-r--r--
average.h	2.42 KB	-rw-r--r--
b1pcmcia.h	666 B	-rw-r--r--
backing-dev-defs.h	9.33 KB	-rw-r--r--
backing-dev.h	13.92 KB	-rw-r--r--
backlight.h	6.37 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 KB	-rw-r--r--
bcm47xx_nvram.h	1.01 KB	-rw-r--r--
bcm47xx_sprom.h	386 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	5.15 KB	-rw-r--r--
bio.h	20.71 KB	-rw-r--r--
bit_spinlock.h	2.3 KB	-rw-r--r--
bitfield.h	4.89 KB	-rw-r--r--
bitmap.h	18.76 KB	-rw-r--r--
bitops.h	6.99 KB	-rw-r--r--
bitrev.h	2.53 KB	-rw-r--r--
bits.h	883 B	-rw-r--r--
blk-cgroup.h	25.69 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	11.4 KB	-rw-r--r--
blk-pm.h	717 B	-rw-r--r--
blk_types.h	13.13 KB	-rw-r--r--
blkdev.h	52.41 KB	-rw-r--r--
blkpg.h	436 B	-rw-r--r--
blktrace_api.h	3.87 KB	-rw-r--r--
blockgroup_lock.h	810 B	-rw-r--r--
bma150.h	1.26 KB	-rw-r--r--
bottom_half.h	803 B	-rw-r--r--
bpf-cgroup.h	13.81 KB	-rw-r--r--
bpf.h	36.68 KB	-rw-r--r--
bpf_lirc.h	698 B	-rw-r--r--
bpf_trace.h	166 B	-rw-r--r--
bpf_types.h	3.15 KB	-rw-r--r--
bpf_verifier.h	15.18 KB	-rw-r--r--
bpfilter.h	728 B	-rw-r--r--
brcmphy.h	10.8 KB	-rw-r--r--
bsearch.h	275 B	-rw-r--r--
bsg-lib.h	1.7 KB	-rw-r--r--
bsg.h	1012 B	-rw-r--r--
btf.h	2.32 KB	-rw-r--r--
btree-128.h	2.67 KB	-rw-r--r--
btree-type.h	3.9 KB	-rw-r--r--
btree.h	6.83 KB	-rw-r--r--
btrfs.h	145 B	-rw-r--r--
buffer_head.h	14.4 KB	-rw-r--r--
bug.h	1.92 KB	-rw-r--r--
build-salt.h	375 B	-rw-r--r--
build_bug.h	2.86 KB	-rw-r--r--
bvec.h	4.72 KB	-rw-r--r--
c2port.h	1.35 KB	-rw-r--r--
cache.h	2.13 KB	-rw-r--r--
cacheinfo.h	3.32 KB	-rw-r--r--
capability.h	7.79 KB	-rw-r--r--
cb710.h	5.36 KB	-rw-r--r--
cciss_ioctl.h	1.03 KB	-rw-r--r--
ccp.h	18.12 KB	-rw-r--r--
cdev.h	845 B	-rw-r--r--
cdrom.h	8.78 KB	-rw-r--r--
cfag12864b.h	1.46 KB	-rw-r--r--
cgroup-defs.h	26.87 KB	-rw-r--r--
cgroup.h	28.89 KB	-rw-r--r--
cgroup_rdma.h	1.18 KB	-rw-r--r--
cgroup_subsys.h	1.17 KB	-rw-r--r--
circ_buf.h	1.09 KB	-rw-r--r--
cleancache.h	3.89 KB	-rw-r--r--
clk-provider.h	40.26 KB	-rw-r--r--
clk.h	31.76 KB	-rw-r--r--
clkdev.h	1.52 KB	-rw-r--r--
clock_cooling.h	1.65 KB	-rw-r--r--
clockchips.h	7.27 KB	-rw-r--r--
clocksource.h	8.56 KB	-rw-r--r--
cm4000_cs.h	199 B	-rw-r--r--
cma.h	1.18 KB	-rw-r--r--
cmdline-parser.h	1.21 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	7.33 KB	-rw-r--r--
compat.h	31.51 KB	-rw-r--r--
compiler-clang.h	1.35 KB	-rw-r--r--
compiler-gcc.h	4.9 KB	-rw-r--r--
compiler-intel.h	949 B	-rw-r--r--
compiler.h	13.4 KB	-rw-r--r--
compiler_attributes.h	11.54 KB	-rw-r--r--
compiler_types.h	7.44 KB	-rw-r--r--
completion.h	4.05 KB	-rw-r--r--
component.h	4.07 KB	-rw-r--r--
configfs.h	8.56 KB	-rw-r--r--
connector.h	3.8 KB	-rw-r--r--
console.h	7.45 KB	-rw-r--r--
console_struct.h	6.79 KB	-rw-r--r--
consolemap.h	1.04 KB	-rw-r--r--
const.h	157 B	-rw-r--r--
container.h	610 B	-rw-r--r--
context_tracking.h	4.43 KB	-rw-r--r--
context_tracking_state.h	1.39 KB	-rw-r--r--
cordic.h	2.08 KB	-rw-r--r--
coredump.h	797 B	-rw-r--r--
coresight-pmu.h	989 B	-rw-r--r--
coresight-stm.h	152 B	-rw-r--r--
coresight.h	10.2 KB	-rw-r--r--
count_zeros.h	1.42 KB	-rw-r--r--
counter.h	16.86 KB	-rw-r--r--
counter_enum.h	1.43 KB	-rw-r--r--
cper.h	15.64 KB	-rw-r--r--
cpu.h	7.63 KB	-rw-r--r--
cpu_cooling.h	1.72 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	30.02 KB	-rw-r--r--
cpuhotplug.h	12.32 KB	-rw-r--r--
cpuidle.h	9.81 KB	-rw-r--r--
cpuidle_haltpoll.h	312 B	-rw-r--r--
cpumask.h	26.34 KB	-rw-r--r--
cpuset.h	7.29 KB	-rw-r--r--
crash_core.h	3.06 KB	-rw-r--r--
crash_dump.h	4.02 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	3.65 KB	-rw-r--r--
cred.h	12.34 KB	-rw-r--r--
crypto.h	63.01 KB	-rw-r--r--
cryptohash.h	319 B	-rw-r--r--
cs5535.h	6.13 KB	-rw-r--r--
ctype.h	1.75 KB	-rw-r--r--
cuda.h	613 B	-rw-r--r--
cyclades.h	10.36 KB	-rw-r--r--
davinci_emac.h	1.05 KB	-rw-r--r--
dax.h	7.21 KB	-rw-r--r--
dca.h	1.88 KB	-rw-r--r--
dcache.h	18.32 KB	-rw-r--r--
dccp.h	10.73 KB	-rw-r--r--
dcookies.h	1.3 KB	-rw-r--r--
debug_locks.h	1.54 KB	-rw-r--r--
debugfs.h	11.28 KB	-rw-r--r--
debugobjects.h	3.89 KB	-rw-r--r--
delay.h	1.88 KB	-rw-r--r--
delayacct.h	5.26 KB	-rw-r--r--
delayed_call.h	709 B	-rw-r--r--
devcoredump.h	2.21 KB	-rw-r--r--
devfreq-event.h	5.82 KB	-rw-r--r--
devfreq.h	13.06 KB	-rw-r--r--
devfreq_cooling.h	3.54 KB	-rw-r--r--
device-mapper.h	17.45 KB	-rw-r--r--
device.h	67.82 KB	-rw-r--r--
device_cgroup.h	1.86 KB	-rw-r--r--
devpts_fs.h	1.13 KB	-rw-r--r--
digsig.h	1.19 KB	-rw-r--r--
dim.h	8.81 KB	-rw-r--r--
dio.h	10.97 KB	-rw-r--r--
dirent.h	216 B	-rw-r--r--
dlm.h	5.86 KB	-rw-r--r--
dlm_plock.h	532 B	-rw-r--r--
dm-bufio.h	4.51 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	2.89 KB	-rw-r--r--
dm-region-hash.h	3.11 KB	-rw-r--r--
dm9000.h	987 B	-rw-r--r--
dma-buf.h	14.57 KB	-rw-r--r--
dma-contiguous.h	4.73 KB	-rw-r--r--
dma-debug.h	4.18 KB	-rw-r--r--
dma-direct.h	2.69 KB	-rw-r--r--
dma-direction.h	220 B	-rw-r--r--
dma-fence-array.h	2.14 KB	-rw-r--r--
dma-fence-chain.h	2.04 KB	-rw-r--r--
dma-fence.h	19.71 KB	-rw-r--r--
dma-iommu.h	1.94 KB	-rw-r--r--
dma-mapping.h	29.05 KB	-rw-r--r--
dma-noncoherent.h	3.36 KB	-rw-r--r--
dma-resv.h	9.16 KB	-rw-r--r--
dmaengine.h	45.86 KB	-rw-r--r--
dmapool.h	1.79 KB	-rw-r--r--
dmar.h	7.5 KB	-rw-r--r--
dmi.h	4.07 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--
dw_apb_timer.h	1.56 KB	-rw-r--r--
dynamic_debug.h	6.06 KB	-rw-r--r--
dynamic_queue_limits.h	3.7 KB	-rw-r--r--
earlycpio.h	359 B	-rw-r--r--
ecryptfs.h	3.82 KB	-rw-r--r--
edac.h	20.33 KB	-rw-r--r--
edd.h	1.05 KB	-rw-r--r--
eeprom_93cx6.h	2.31 KB	-rw-r--r--
eeprom_93xx46.h	879 B	-rw-r--r--
efi-bgrt.h	644 B	-rw-r--r--
efi.h	53.96 KB	-rw-r--r--
efs_vh.h	1.55 KB	-rw-r--r--
eisa.h	2.96 KB	-rw-r--r--
elevator.h	5.37 KB	-rw-r--r--
elf-fdpic.h	1.98 KB	-rw-r--r--
elf-randomize.h	583 B	-rw-r--r--
elf.h	1.53 KB	-rw-r--r--
elfcore-compat.h	1.23 KB	-rw-r--r--
elfcore.h	2.52 KB	-rw-r--r--
elfnote.h	3.54 KB	-rw-r--r--
enclosure.h	4.02 KB	-rw-r--r--
energy_model.h	6.47 KB	-rw-r--r--
err.h	1.55 KB	-rw-r--r--
errno.h	1.39 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	16.97 KB	-rw-r--r--
ethtool.h	17.89 KB	-rw-r--r--
eventfd.h	2.12 KB	-rw-r--r--
eventpoll.h	1.95 KB	-rw-r--r--
evm.h	2.65 KB	-rw-r--r--
export.h	6.16 KB	-rw-r--r--
exportfs.h	7.46 KB	-rw-r--r--
ext2_fs.h	967 B	-rw-r--r--
extable.h	1.06 KB	-rw-r--r--
extcon-provider.h	3.92 KB	-rw-r--r--
extcon.h	10.18 KB	-rw-r--r--
f2fs_fs.h	18.66 KB	-rw-r--r--
f75375s.h	541 B	-rw-r--r--
falloc.h	792 B	-rw-r--r--
fanotify.h	2.66 KB	-rw-r--r--
fault-inject.h	1.93 KB	-rw-r--r--
fb.h	27.82 KB	-rw-r--r--
fbcon.h	2.09 KB	-rw-r--r--
fcdevice.h	774 B	-rw-r--r--
fcntl.h	1.29 KB	-rw-r--r--
fd.h	490 B	-rw-r--r--
fddidevice.h	833 B	-rw-r--r--
fdtable.h	3.34 KB	-rw-r--r--
fec.h	463 B	-rw-r--r--
file.h	2.24 KB	-rw-r--r--
filter.h	33.82 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	2.66 KB	-rw-r--r--
fixp-arith.h	3.76 KB	-rw-r--r--
flat.h	2.57 KB	-rw-r--r--
flex_proportions.h	2.81 KB	-rw-r--r--
font.h	1.6 KB	-rw-r--r--
frame.h	1.12 KB	-rw-r--r--
freezer.h	8.67 KB	-rw-r--r--
frontswap.h	3.05 KB	-rw-r--r--
fs.h	118.49 KB	-rw-r--r--
fs_context.h	7.8 KB	-rw-r--r--
fs_enet_pd.h	3.38 KB	-rw-r--r--
fs_parser.h	4.6 KB	-rw-r--r--
fs_pin.h	539 B	-rw-r--r--
fs_stack.h	811 B	-rw-r--r--
fs_struct.h	1.03 KB	-rw-r--r--
fs_types.h	2.02 KB	-rw-r--r--
fs_uart_pd.h	1.49 KB	-rw-r--r--
fscache-cache.h	18.6 KB	-rw-r--r--
fscache.h	28.68 KB	-rw-r--r--
fscrypt.h	25.72 KB	-rw-r--r--
fsi-occ.h	681 B	-rw-r--r--
fsi-sbefifo.h	629 B	-rw-r--r--
fsi.h	2.26 KB	-rw-r--r--
fsl-diu-fb.h	3.87 KB	-rw-r--r--
fsl_devices.h	4.16 KB	-rw-r--r--
fsl_hypervisor.h	2.76 KB	-rw-r--r--
fsl_ifc.h	24.48 KB	-rw-r--r--
fsldma.h	202 B	-rw-r--r--
fsnotify.h	9.45 KB	-rw-r--r--
fsnotify_backend.h	20.3 KB	-rw-r--r--
fsverity.h	5.97 KB	-rw-r--r--
ftrace.h	30.13 KB	-rw-r--r--
ftrace_irq.h	823 B	-rw-r--r--
futex.h	2.44 KB	-rw-r--r--
fwnode.h	4.42 KB	-rw-r--r--
gameport.h	5.42 KB	-rw-r--r--
gcd.h	193 B	-rw-r--r--
genalloc.h	7.67 KB	-rw-r--r--
generic-radix-tree.h	6.36 KB	-rw-r--r--
genetlink.h	1.35 KB	-rw-r--r--
genhd.h	24.04 KB	-rw-r--r--
genl_magic_func.h	11.59 KB	-rw-r--r--
genl_magic_struct.h	7.66 KB	-rw-r--r--
getcpu.h	641 B	-rw-r--r--
gfp.h	23.94 KB	-rw-r--r--
glob.h	256 B	-rw-r--r--
gnss.h	1.56 KB	-rw-r--r--
goldfish.h	738 B	-rw-r--r--
gpio-pxa.h	571 B	-rw-r--r--
gpio.h	5.35 KB	-rw-r--r--
gpio_keys.h	1.74 KB	-rw-r--r--
greybus.h	4.14 KB	-rw-r--r--
hardirq.h	1.95 KB	-rw-r--r--
hash.h	3 KB	-rw-r--r--
hashtable.h	6.63 KB	-rw-r--r--
hdlc.h	3.19 KB	-rw-r--r--
hdlcdrv.h	6.32 KB	-rw-r--r--
hdmi.h	12.26 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	8.64 KB	-rw-r--r--
hid-sensor-ids.h	6.67 KB	-rw-r--r--
hid.h	36.89 KB	-rw-r--r--
hiddev.h	1.42 KB	-rw-r--r--
hidraw.h	1.12 KB	-rw-r--r--
highmem.h	6.77 KB	-rw-r--r--
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	14.21 KB	-rw-r--r--
host1x.h	8.22 KB	-rw-r--r--
hp_sdc.h	14.02 KB	-rw-r--r--
hpet.h	2.55 KB	-rw-r--r--
hrtimer.h	15.93 KB	-rw-r--r--
hrtimer_defs.h	660 B	-rw-r--r--
htcpld.h	617 B	-rw-r--r--
huge_mm.h	12.06 KB	-rw-r--r--
hugetlb.h	19.64 KB	-rw-r--r--
hugetlb_cgroup.h	2.93 KB	-rw-r--r--
hugetlb_inline.h	374 B	-rw-r--r--
hw_breakpoint.h	4.1 KB	-rw-r--r--
hw_random.h	2.12 KB	-rw-r--r--
hwmon-sysfs.h	2.77 KB	-rw-r--r--
hwmon-vid.h	862 B	-rw-r--r--
hwmon.h	13.31 KB	-rw-r--r--
hwspinlock.h	15.64 KB	-rw-r--r--
hyperv.h	42.44 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--
i2c-algo-pcf.h	1.21 KB	-rw-r--r--
i2c-dev.h	371 B	-rw-r--r--
i2c-mux.h	1.63 KB	-rw-r--r--
i2c-pxa.h	438 B	-rw-r--r--
i2c-smbus.h	1.29 KB	-rw-r--r--
i2c.h	36.54 KB	-rw-r--r--
i8042.h	1.99 KB	-rw-r--r--
i8253.h	809 B	-rw-r--r--
icmp.h	652 B	-rw-r--r--
icmpv6.h	2.5 KB	-rw-r--r--
ide.h	46.21 KB	-rw-r--r--
idle_inject.h	832 B	-rw-r--r--
idr.h	9.39 KB	-rw-r--r--
ieee80211.h	107.09 KB	-rw-r--r--
ieee802154.h	11.12 KB	-rw-r--r--
if_arp.h	1.81 KB	-rw-r--r--
if_bridge.h	3.72 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--
if_frad.h	2.66 KB	-rw-r--r--
if_link.h	592 B	-rw-r--r--
if_ltalk.h	188 B	-rw-r--r--
if_macvlan.h	2.67 KB	-rw-r--r--
if_phonet.h	319 B	-rw-r--r--
if_pppol2tp.h	516 B	-rw-r--r--
if_pppox.h	2.84 KB	-rw-r--r--
if_rmnet.h	1.14 KB	-rw-r--r--
if_tap.h	2.21 KB	-rw-r--r--
if_team.h	7.94 KB	-rw-r--r--
if_tun.h	1.29 KB	-rw-r--r--
if_tunnel.h	409 B	-rw-r--r--
if_vlan.h	20.73 KB	-rw-r--r--
igmp.h	4.44 KB	-rw-r--r--
ihex.h	2.16 KB	-rw-r--r--
ima.h	3.51 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	1.53 KB	-rw-r--r--
inet.h	2.64 KB	-rw-r--r--
inet_diag.h	2.42 KB	-rw-r--r--
inetdevice.h	8.65 KB	-rw-r--r--
init.h	9.55 KB	-rw-r--r--
init_ohci1394_dma.h	196 B	-rw-r--r--
init_task.h	1.37 KB	-rw-r--r--
initrd.h	836 B	-rw-r--r--
inotify.h	713 B	-rw-r--r--
input-polldev.h	2.03 KB	-rw-r--r--
input.h	19.37 KB	-rw-r--r--
integrity.h	1.13 KB	-rw-r--r--
intel-iommu.h	22.91 KB	-rw-r--r--
intel-ish-client-if.h	3.73 KB	-rw-r--r--
intel-pti.h	1.18 KB	-rw-r--r--
intel-svm.h	4.57 KB	-rw-r--r--
intel_rapl.h	4.12 KB	-rw-r--r--
intel_th.h	2.44 KB	-rw-r--r--
interconnect-provider.h	4.09 KB	-rw-r--r--
interconnect.h	1.68 KB	-rw-r--r--
interrupt.h	22.65 KB	-rw-r--r--
interval_tree.h	831 B	-rw-r--r--
interval_tree_generic.h	6.7 KB	-rw-r--r--
io-64-nonatomic-hi-lo.h	2.4 KB	-rw-r--r--
io-64-nonatomic-lo-hi.h	2.4 KB	-rw-r--r--
io-mapping.h	3.77 KB	-rw-r--r--
io-pgtable.h	7.85 KB	-rw-r--r--
io.h	5.3 KB	-rw-r--r--
ioc3.h	3.14 KB	-rw-r--r--
iocontext.h	4.76 KB	-rw-r--r--
iomap.h	7.18 KB	-rw-r--r--
iommu-helper.h	1.07 KB	-rw-r--r--
iommu.h	31.06 KB	-rw-r--r--
iopoll.h	5.32 KB	-rw-r--r--
ioport.h	11.41 KB	-rw-r--r--
ioprio.h	2.41 KB	-rw-r--r--
iova.h	7.09 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	4.96 KB	-rw-r--r--
ipmi-fru.h	3.61 KB	-rw-r--r--
ipmi.h	10.85 KB	-rw-r--r--
ipmi_smi.h	7.98 KB	-rw-r--r--
ipv6.h	9.11 KB	-rw-r--r--
ipv6_route.h	372 B	-rw-r--r--
irq.h	40.35 KB	-rw-r--r--
irq_cpustat.h	845 B	-rw-r--r--
irq_poll.h	575 B	-rw-r--r--
irq_sim.h	985 B	-rw-r--r--
irq_work.h	1.34 KB	-rw-r--r--
irqbypass.h	3.45 KB	-rw-r--r--
irqchip.h	1.54 KB	-rw-r--r--
irqdesc.h	8.21 KB	-rw-r--r--
irqdomain.h	20.1 KB	-rw-r--r--
irqflags.h	5.09 KB	-rw-r--r--
irqhandler.h	362 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	3.14 KB	-rw-r--r--
iscsi_boot_sysfs.h	3.71 KB	-rw-r--r--
iscsi_ibft.h	917 B	-rw-r--r--
isicom.h	1.49 KB	-rw-r--r--
iversion.h	12.12 KB	-rw-r--r--
jbd2.h	46.81 KB	-rw-r--r--
jhash.h	4.62 KB	-rw-r--r--
jiffies.h	15.67 KB	-rw-r--r--
journal-head.h	2.87 KB	-rw-r--r--
joystick.h	437 B	-rw-r--r--
jump_label.h	14.94 KB	-rw-r--r--
jump_label_ratelimit.h	2.77 KB	-rw-r--r--
jz4740-adc.h	1023 B	-rw-r--r--
jz4780-nemc.h	976 B	-rw-r--r--
kallsyms.h	4.27 KB	-rw-r--r--
kasan-checks.h	1.18 KB	-rw-r--r--
kasan.h	5.66 KB	-rw-r--r--
kbd_diacr.h	198 B	-rw-r--r--
kbd_kern.h	3.84 KB	-rw-r--r--
kbuild.h	380 B	-rw-r--r--
kconfig.h	2.42 KB	-rw-r--r--
kcore.h	941 B	-rw-r--r--
kcov.h	1.13 KB	-rw-r--r--
kdb.h	7.3 KB	-rw-r--r--
kdebug.h	487 B	-rw-r--r--
kdev_t.h	1.8 KB	-rw-r--r--
kern_levels.h	1.57 KB	-rw-r--r--
kernel-page-flags.h	505 B	-rw-r--r--
kernel.h	34.31 KB	-rw-r--r--
kernel_stat.h	2.5 KB	-rw-r--r--
kernelcapi.h	4.45 KB	-rw-r--r--
kernfs.h	17.47 KB	-rw-r--r--
kexec.h	11.65 KB	-rw-r--r--
key-type.h	6.45 KB	-rw-r--r--
key.h	15.4 KB	-rw-r--r--
keyboard.h	665 B	-rw-r--r--
keyctl.h	1.25 KB	-rw-r--r--
kfifo.h	24.19 KB	-rw-r--r--
kgdb.h	10.88 KB	-rw-r--r--
khugepaged.h	2.65 KB	-rw-r--r--
klist.h	1.88 KB	-rw-r--r--
kmemleak.h	3.27 KB	-rw-r--r--
kmod.h	1.02 KB	-rw-r--r--
kmsg_dump.h	2.85 KB	-rw-r--r--
kobj_map.h	545 B	-rw-r--r--
kobject.h	7.69 KB	-rw-r--r--
kobject_ns.h	1.89 KB	-rw-r--r--
kprobes.h	13.32 KB	-rw-r--r--
kref.h	3.08 KB	-rw-r--r--
ks0108.h	960 B	-rw-r--r--
ks8842.h	632 B	-rw-r--r--
ks8851_mll.h	472 B	-rw-r--r--
ksm.h	2.69 KB	-rw-r--r--
kthread.h	6.69 KB	-rw-r--r--
ktime.h	6.71 KB	-rw-r--r--
kvm_host.h	41.15 KB	-rw-r--r--
kvm_irqfd.h	1.99 KB	-rw-r--r--
kvm_para.h	402 B	-rw-r--r--
kvm_types.h	1.05 KB	-rw-r--r--
l2tp.h	261 B	-rw-r--r--
lantiq.h	365 B	-rw-r--r--
lapb.h	1.71 KB	-rw-r--r--
latencytop.h	1.18 KB	-rw-r--r--
lcd.h	3.78 KB	-rw-r--r--
lcm.h	275 B	-rw-r--r--
led-class-flash.h	5.61 KB	-rw-r--r--
led-lm3530.h	3.7 KB	-rw-r--r--
leds-bd2802.h	493 B	-rw-r--r--
leds-lp3944.h	950 B	-rw-r--r--
leds-lp3952.h	2.35 KB	-rw-r--r--
leds-pca9532.h	866 B	-rw-r--r--
leds-regulator.h	1.14 KB	-rw-r--r--
leds-tca6507.h	433 B	-rw-r--r--
leds-ti-lmu-common.h	1.12 KB	-rw-r--r--
leds.h	18.11 KB	-rw-r--r--
leds_pwm.h	407 B	-rw-r--r--
libata.h	65.1 KB	-rw-r--r--
libfdt.h	202 B	-rw-r--r--
libfdt_env.h	491 B	-rw-r--r--
libgcc.h	463 B	-rw-r--r--
libnvdimm.h	9.53 KB	-rw-r--r--
libps2.h	1.89 KB	-rw-r--r--
license.h	374 B	-rw-r--r--
lightnvm.h	14.88 KB	-rw-r--r--
limits.h	1.05 KB	-rw-r--r--
linkage.h	9.11 KB	-rw-r--r--
linkmode.h	1.95 KB	-rw-r--r--
linux_logo.h	1.91 KB	-rw-r--r--
lis3lv02d.h	5 KB	-rw-r--r--
list.h	26.9 KB	-rw-r--r--
list_bl.h	4.79 KB	-rw-r--r--
list_lru.h	7.29 KB	-rw-r--r--
list_nulls.h	3.47 KB	-rw-r--r--
list_sort.h	307 B	-rw-r--r--
livepatch.h	7.43 KB	-rw-r--r--
llc.h	749 B	-rw-r--r--
llist.h	8.56 KB	-rw-r--r--
lockdep.h	20.23 KB	-rw-r--r--
lockref.h	1.5 KB	-rw-r--r--
log2.h	6.19 KB	-rw-r--r--
logic_pio.h	3.24 KB	-rw-r--r--
lp.h	2.76 KB	-rw-r--r--
lru_cache.h	11.82 KB	-rw-r--r--
lsm_audit.h	2.73 KB	-rw-r--r--
lsm_hooks.h	93.79 KB	-rw-r--r--
lz4.h	26.44 KB	-rw-r--r--
lzo.h	1.55 KB	-rw-r--r--
mISDNdsp.h	1.19 KB	-rw-r--r--
mISDNhw.h	5.39 KB	-rw-r--r--
mISDNif.h	14.91 KB	-rw-r--r--
mailbox_client.h	1.71 KB	-rw-r--r--
mailbox_controller.h	5.7 KB	-rw-r--r--
maple.h	2.71 KB	-rw-r--r--
marvell_phy.h	1.41 KB	-rw-r--r--
math64.h	6.86 KB	-rw-r--r--
max17040_battery.h	328 B	-rw-r--r--
mbcache.h	2.16 KB	-rw-r--r--
mbus.h	3.09 KB	-rw-r--r--
mc146818rtc.h	4.57 KB	-rw-r--r--
mc6821.h	1.18 KB	-rw-r--r--
mcb.h	3.71 KB	-rw-r--r--
mdev.h	5.21 KB	-rw-r--r--
mdio-bitbang.h	1.12 KB	-rw-r--r--
mdio-gpio.h	177 B	-rw-r--r--
mdio-mux.h	1021 B	-rw-r--r--
mdio.h	10.86 KB	-rw-r--r--
mei_cl_bus.h	3.43 KB	-rw-r--r--
mem_encrypt.h	885 B	-rw-r--r--
memblock.h	18.46 KB	-rw-r--r--
memcontrol.h	36.66 KB	-rw-r--r--
memfd.h	365 B	-rw-r--r--
memory.h	4.74 KB	-rw-r--r--
memory_hotplug.h	10.96 KB	-rw-r--r--
mempolicy.h	7.44 KB	-rw-r--r--
mempool.h	3.35 KB	-rw-r--r--
memremap.h	5.36 KB	-rw-r--r--
memstick.h	9.6 KB	-rw-r--r--
mic_bus.h	2.7 KB	-rw-r--r--
micrel_phy.h	1.28 KB	-rw-r--r--
microchipphy.h	2.65 KB	-rw-r--r--
migrate.h	5.96 KB	-rw-r--r--
migrate_mode.h	758 B	-rw-r--r--
mii.h	14.04 KB	-rw-r--r--
miscdevice.h	2.81 KB	-rw-r--r--
mm-arch-hooks.h	533 B	-rw-r--r--
mm.h	92.34 KB	-rw-r--r--
mm_inline.h	3.37 KB	-rw-r--r--
mm_types.h	23.61 KB	-rw-r--r--
mm_types_task.h	2.5 KB	-rw-r--r--
mman.h	3.28 KB	-rw-r--r--
mmap_lock.h	1.06 KB	-rw-r--r--
mmdebug.h	2.32 KB	-rw-r--r--
mmiotrace.h	3.05 KB	-rw-r--r--
mmu_context.h	378 B	-rw-r--r--
mmu_notifier.h	19.84 KB	-rw-r--r--
mmzone.h	41.85 KB	-rw-r--r--
mnt_namespace.h	617 B	-rw-r--r--
mod_devicetable.h	21.91 KB	-rw-r--r--
module.h	24.34 KB	-rw-r--r--
module_signature.h	1.22 KB	-rw-r--r--
moduleloader.h	2.87 KB	-rw-r--r--
moduleparam.h	19.53 KB	-rw-r--r--
mount.h	3.64 KB	-rw-r--r--
moxtet.h	2.37 KB	-rw-r--r--
mpage.h	761 B	-rw-r--r--
mpi.h	2.51 KB	-rw-r--r--
mpls.h	394 B	-rw-r--r--
mpls_iptunnel.h	178 B	-rw-r--r--
mroute.h	1.95 KB	-rw-r--r--
mroute6.h	2.39 KB	-rw-r--r--
mroute_base.h	12.03 KB	-rw-r--r--
msdos_fs.h	273 B	-rw-r--r--
msg.h	395 B	-rw-r--r--
msi.h	12.84 KB	-rw-r--r--
mutex.h	6.55 KB	-rw-r--r--
mv643xx.h	51.27 KB	-rw-r--r--
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--
n_r3964.h	4.06 KB	-rw-r--r--
namei.h	3.34 KB	-rw-r--r--
nd.h	5.52 KB	-rw-r--r--
ndctl.h	674 B	-rw-r--r--
net.h	11.75 KB	-rw-r--r--
netdev_features.h	9.7 KB	-rw-r--r--
netdevice.h	152.29 KB	-rw-r--r--
netfilter.h	13.36 KB	-rw-r--r--
netfilter_bridge.h	2.08 KB	-rw-r--r--
netfilter_defs.h	242 B	-rw-r--r--
netfilter_ingress.h	1.44 KB	-rw-r--r--
netfilter_ipv4.h	1.05 KB	-rw-r--r--
netfilter_ipv6.h	5.85 KB	-rw-r--r--
netlink.h	7.19 KB	-rw-r--r--
netpoll.h	2.69 KB	-rw-r--r--
nfs.h	1.31 KB	-rw-r--r--
nfs3.h	260 B	-rw-r--r--
nfs4.h	17.86 KB	-rw-r--r--
nfs_fs.h	17.2 KB	-rw-r--r--
nfs_fs_i.h	308 B	-rw-r--r--
nfs_fs_sb.h	9.54 KB	-rw-r--r--
nfs_iostat.h	4.18 KB	-rw-r--r--
nfs_page.h	6.38 KB	-rw-r--r--
nfs_xdr.h	40.17 KB	-rw-r--r--
nfsacl.h	1.15 KB	-rw-r--r--
nl802154.h	3.85 KB	-rw-r--r--
nls.h	3.09 KB	-rw-r--r--
nmi.h	6.86 KB	-rw-r--r--
node.h	4.69 KB	-rw-r--r--
nodemask.h	17.1 KB	-rw-r--r--
nospec.h	2.21 KB	-rw-r--r--
notifier.h	8.21 KB	-rw-r--r--
ns_common.h	235 B	-rw-r--r--
nsc_gpio.h	1.42 KB	-rw-r--r--
nsproxy.h	2.48 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	292 B	-rw-r--r--
nvme-fc-driver.h	37.18 KB	-rw-r--r--
nvme-fc.h	9.69 KB	-rw-r--r--
nvme-rdma.h	2.04 KB	-rw-r--r--
nvme-tcp.h	4.42 KB	-rw-r--r--
nvme.h	33.32 KB	-rw-r--r--
nvmem-consumer.h	5.8 KB	-rw-r--r--
nvmem-provider.h	3.88 KB	-rw-r--r--
nvram.h	3.47 KB	-rw-r--r--
objagg.h	1.94 KB	-rw-r--r--
of.h	42.38 KB	-rw-r--r--
of_address.h	4.47 KB	-rw-r--r--
of_clk.h	795 B	-rw-r--r--
of_device.h	2.99 KB	-rw-r--r--
of_dma.h	2.3 KB	-rw-r--r--
of_fdt.h	3.69 KB	-rw-r--r--
of_gpio.h	3.96 KB	-rw-r--r--
of_graph.h	3.41 KB	-rw-r--r--
of_iommu.h	821 B	-rw-r--r--
of_irq.h	3.62 KB	-rw-r--r--
of_mdio.h	2.98 KB	-rw-r--r--
of_net.h	720 B	-rw-r--r--
of_pci.h	935 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	2.15 KB	-rw-r--r--
oid_registry.h	4.44 KB	-rw-r--r--
olpc-ec.h	1.95 KB	-rw-r--r--
omap-dma.h	10.47 KB	-rw-r--r--
omap-gpmc.h	2.73 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	2.79 KB	-rw-r--r--
oom.h	3.26 KB	-rw-r--r--
openvswitch.h	403 B	-rw-r--r--
oprofile.h	6.1 KB	-rw-r--r--
osq_lock.h	1.04 KB	-rw-r--r--
overflow.h	11.25 KB	-rw-r--r--
packing.h	1.78 KB	-rw-r--r--
padata.h	6.35 KB	-rw-r--r--
page-flags-layout.h	3.28 KB	-rw-r--r--
page-flags.h	27.15 KB	-rw-r--r--
page-isolation.h	1.65 KB	-rw-r--r--
page_counter.h	1.94 KB	-rw-r--r--
page_ext.h	1.68 KB	-rw-r--r--
page_idle.h	2.62 KB	-rw-r--r--
page_owner.h	2.29 KB	-rw-r--r--
page_ref.h	4.99 KB	-rw-r--r--
pageblock-flags.h	2.72 KB	-rw-r--r--
pagemap.h	18.76 KB	-rw-r--r--
pagevec.h	2.34 KB	-rw-r--r--
pagewalk.h	2.39 KB	-rw-r--r--
parman.h	2.87 KB	-rw-r--r--
parport.h	17.84 KB	-rw-r--r--
parport_pc.h	6.56 KB	-rw-r--r--
parser.h	1.04 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	3.48 KB	-rw-r--r--
pci-ats.h	1.52 KB	-rw-r--r--
pci-dma-compat.h	3.66 KB	-rw-r--r--
pci-ecam.h	2.19 KB	-rw-r--r--
pci-ep-cfs.h	951 B	-rw-r--r--
pci-epc.h	6.93 KB	-rw-r--r--
pci-epf.h	4.75 KB	-rw-r--r--
pci-p2pdma.h	3.95 KB	-rw-r--r--
pci.h	86.42 KB	-rw-r--r--
pci_hotplug.h	4.25 KB	-rw-r--r--
pci_ids.h	121.45 KB	-rw-r--r--
pda_power.h	1005 B	-rw-r--r--
pe.h	15.05 KB	-rw-r--r--
percpu-defs.h	18.12 KB	-rw-r--r--
percpu-refcount.h	10.46 KB	-rw-r--r--
percpu-rwsem.h	3.93 KB	-rw-r--r--
percpu.h	4.65 KB	-rw-r--r--
percpu_counter.h	4.27 KB	-rw-r--r--
perf_event.h	42.54 KB	-rw-r--r--
perf_regs.h	1.13 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--
phonet.h	537 B	-rw-r--r--
phy.h	40.59 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	10.47 KB	-rw-r--r--
pid.h	5.85 KB	-rw-r--r--
pid_namespace.h	2.33 KB	-rw-r--r--
pim.h	2.67 KB	-rw-r--r--
pipe_fs_i.h	6.17 KB	-rw-r--r--
pkeys.h	1016 B	-rw-r--r--
pktcdvd.h	5.87 KB	-rw-r--r--
pl320-ipc.h	209 B	-rw-r--r--
pl353-smc.h	739 B	-rw-r--r--
platform_device.h	13.05 KB	-rw-r--r--
plist.h	8.66 KB	-rw-r--r--
pm-trace.h	940 B	-rw-r--r--
pm.h	33.27 KB	-rw-r--r--
pm2301_charger.h	1.09 KB	-rw-r--r--
pm_clock.h	2.45 KB	-rw-r--r--
pm_domain.h	11.74 KB	-rw-r--r--
pm_opp.h	11.41 KB	-rw-r--r--
pm_qos.h	9.83 KB	-rw-r--r--
pm_runtime.h	9.56 KB	-rw-r--r--
pm_wakeirq.h	1.48 KB	-rw-r--r--
pm_wakeup.h	5.74 KB	-rw-r--r--
pmbus.h	970 B	-rw-r--r--
pmu.h	2.44 KB	-rw-r--r--
pnfs_osd_xdr.h	9.27 KB	-rw-r--r--
pnp.h	14.89 KB	-rw-r--r--
poison.h	2.56 KB	-rw-r--r--
poll.h	4.01 KB	-rw-r--r--
posix-clock.h	3.91 KB	-rw-r--r--
posix-timers.h	6.31 KB	-rw-r--r--
posix_acl.h	3.09 KB	-rw-r--r--
posix_acl_xattr.h	1.58 KB	-rw-r--r--
power_supply.h	16.06 KB	-rw-r--r--
powercap.h	12.04 KB	-rw-r--r--
ppp-comp.h	2.95 KB	-rw-r--r--
ppp_channel.h	2.87 KB	-rw-r--r--
ppp_defs.h	305 B	-rw-r--r--
pps-gpio.h	395 B	-rw-r--r--
pps_kernel.h	2.9 KB	-rw-r--r--
pr.h	566 B	-rw-r--r--
prandom.h	3.38 KB	-rw-r--r--
preempt.h	10 KB	-rw-r--r--
prefetch.h	1.7 KB	-rw-r--r--
prime_numbers.h	1.35 KB	-rw-r--r--
printk.h	15.92 KB	-rw-r--r--
proc_fs.h	6.58 KB	-rw-r--r--
proc_ns.h	2.6 KB	-rw-r--r--
processor.h	1.84 KB	-rw-r--r--
profile.h	2.68 KB	-rw-r--r--
projid.h	2.22 KB	-rw-r--r--
property.h	14.29 KB	-rw-r--r--
psci.h	1.48 KB	-rw-r--r--
pseudo_fs.h	355 B	-rw-r--r--
psi.h	1.53 KB	-rw-r--r--
psi_types.h	3.53 KB	-rw-r--r--
psp-sev.h	17.04 KB	-rw-r--r--
pstore.h	7.28 KB	-rw-r--r--
pstore_ram.h	3.81 KB	-rw-r--r--
pti.h	240 B	-rw-r--r--
ptp_classify.h	2.33 KB	-rw-r--r--
ptp_clock_kernel.h	9.01 KB	-rw-r--r--
ptr_ring.h	16.27 KB	-rw-r--r--
ptrace.h	14.65 KB	-rw-r--r--
purgatory.h	589 B	-rw-r--r--
pvclock_gtod.h	548 B	-rw-r--r--
pwm.h	16.08 KB	-rw-r--r--
pwm_backlight.h	802 B	-rw-r--r--
pxa168_eth.h	728 B	-rw-r--r--
pxa2xx_ssp.h	9.85 KB	-rw-r--r--
qcom-geni-se.h	12.21 KB	-rw-r--r--
qcom_scm.h	4.09 KB	-rw-r--r--
qnx6_fs.h	3.27 KB	-rw-r--r--
quota.h	18.7 KB	-rw-r--r--
quotaops.h	10.37 KB	-rw-r--r--
radix-tree.h	15.61 KB	-rw-r--r--
raid_class.h	2 KB	-rw-r--r--
ramfs.h	659 B	-rw-r--r--
random.h	3.98 KB	-rw-r--r--
range.h	651 B	-rw-r--r--
ras.h	1.18 KB	-rw-r--r--
ratelimit.h	2.81 KB	-rw-r--r--
rational.h	639 B	-rw-r--r--
rbtree.h	5.09 KB	-rw-r--r--
rbtree_augmented.h	9.6 KB	-rw-r--r--
rbtree_latch.h	6.64 KB	-rw-r--r--
rcu_node_tree.h	3.7 KB	-rw-r--r--
rcu_segcblist.h	2.77 KB	-rw-r--r--
rcu_sync.h	1.46 KB	-rw-r--r--
rculist.h	25.42 KB	-rw-r--r--
rculist_bl.h	4.36 KB	-rw-r--r--
rculist_nulls.h	6.17 KB	-rw-r--r--
rcupdate.h	34.54 KB	-rw-r--r--
rcupdate_wait.h	897 B	-rw-r--r--
rcutiny.h	2.58 KB	-rw-r--r--
rcutree.h	1.93 KB	-rw-r--r--
rcuwait.h	1.23 KB	-rw-r--r--
reboot-mode.h	600 B	-rw-r--r--
reboot.h	2.11 KB	-rw-r--r--
reciprocal_div.h	3.28 KB	-rw-r--r--
refcount.h	10.3 KB	-rw-r--r--
regmap.h	52.3 KB	-rw-r--r--
regset.h	14.92 KB	-rw-r--r--
relay.h	8.84 KB	-rw-r--r--
remoteproc.h	22.07 KB	-rw-r--r--
reset-controller.h	3.03 KB	-rw-r--r--
reset.h	15.74 KB	-rw-r--r--
resource.h	339 B	-rw-r--r--
resource_ext.h	1.83 KB	-rw-r--r--
restart_block.h	1.09 KB	-rw-r--r--
rfkill.h	9.86 KB	-rw-r--r--
rhashtable-types.h	3.45 KB	-rw-r--r--
rhashtable.h	37.82 KB	-rw-r--r--
ring_buffer.h	7.24 KB	-rw-r--r--
rio.h	19.02 KB	-rw-r--r--
rio_drv.h	14.5 KB	-rw-r--r--
rio_ids.h	1.08 KB	-rw-r--r--
rio_regs.h	19.07 KB	-rw-r--r--
rmap.h	9.08 KB	-rw-r--r--
rmi.h	12.02 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	7.3 KB	-rw-r--r--
rslib.h	3.67 KB	-rw-r--r--
rtc.h	9 KB	-rw-r--r--
rtmutex.h	3.47 KB	-rw-r--r--
rtnetlink.h	4.46 KB	-rw-r--r--
rtsx_common.h	890 B	-rw-r--r--
rtsx_pci.h	39.6 KB	-rw-r--r--
rtsx_usb.h	15.38 KB	-rw-r--r--
rwlock.h	4.35 KB	-rw-r--r--
rwlock_api_smp.h	7.67 KB	-rw-r--r--
rwlock_types.h	1.12 KB	-rw-r--r--
rwsem.h	6.4 KB	-rw-r--r--
s3c_adc_battery.h	971 B	-rw-r--r--
sbitmap.h	16.52 KB	-rw-r--r--
scatterlist.h	16.16 KB	-rw-r--r--
scc.h	2.84 KB	-rw-r--r--
sched.h	55.47 KB	-rw-r--r--
sched_clock.h	520 B	-rw-r--r--
scif.h	58.87 KB	-rw-r--r--
scmi_protocol.h	10.44 KB	-rw-r--r--
scpi_protocol.h	2.04 KB	-rw-r--r--
screen_info.h	191 B	-rw-r--r--
sctp.h	21.99 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--
sdla.h	6.69 KB	-rw-r--r--
seccomp.h	2.94 KB	-rw-r--r--
securebits.h	239 B	-rw-r--r--
security.h	51.54 KB	-rw-r--r--
sed-opal.h	1.62 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	1.74 KB	-rw-r--r--
sem.h	599 B	-rw-r--r--
semaphore.h	1.35 KB	-rw-r--r--
seq_buf.h	3.15 KB	-rw-r--r--
seq_file.h	7.43 KB	-rw-r--r--
seq_file_net.h	730 B	-rw-r--r--
seqlock.h	16.46 KB	-rw-r--r--
seqno-fence.h	3.57 KB	-rw-r--r--
serdev.h	9.45 KB	-rw-r--r--
serial.h	630 B	-rw-r--r--
serial_8250.h	6 KB	-rw-r--r--
serial_bcm63xx.h	4.73 KB	-rw-r--r--
serial_core.h	19.48 KB	-rw-r--r--
serial_max3100.h	1.19 KB	-rw-r--r--
serial_pnx8xxx.h	1.96 KB	-rw-r--r--
serial_s3c.h	8.58 KB	-rw-r--r--
serial_sci.h	1.6 KB	-rw-r--r--
serio.h	4.28 KB	-rw-r--r--
set_memory.h	1.24 KB	-rw-r--r--
sfi.h	5.75 KB	-rw-r--r--
sfi_acpi.h	3.39 KB	-rw-r--r--
sfp.h	14.11 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	3.59 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	5.15 KB	-rw-r--r--
shrinker.h	3.21 KB	-rw-r--r--
signal.h	12.94 KB	-rw-r--r--
signal_types.h	1.21 KB	-rw-r--r--
signalfd.h	817 B	-rw-r--r--
siox.h	2.26 KB	-rw-r--r--
siphash.h	5.59 KB	-rw-r--r--
sirfsoc_dma.h	162 B	-rw-r--r--
sizes.h	1.16 KB	-rw-r--r--
skb_array.h	5.18 KB	-rw-r--r--
skbuff.h	129.45 KB	-rw-r--r--
skmsg.h	11.52 KB	-rw-r--r--
slab.h	21.09 KB	-rw-r--r--
slab_def.h	2.88 KB	-rw-r--r--
slimbus.h	6.93 KB	-rw-r--r--
slub_def.h	5.56 KB	-rw-r--r--
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	5.98 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	2.16 KB	-rw-r--r--
socket.h	13.61 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	420 B	-rw-r--r--
sound.h	685 B	-rw-r--r--
soundcard.h	1.59 KB	-rw-r--r--
spinlock.h	13.44 KB	-rw-r--r--
spinlock_api_smp.h	5.4 KB	-rw-r--r--
spinlock_api_up.h	3.31 KB	-rw-r--r--
spinlock_types.h	1.99 KB	-rw-r--r--
spinlock_types_up.h	726 B	-rw-r--r--
spinlock_up.h	2.16 KB	-rw-r--r--
splice.h	3.01 KB	-rw-r--r--
spmi.h	5.55 KB	-rw-r--r--
sram.h	844 B	-rw-r--r--
srcu.h	6.57 KB	-rw-r--r--
srcutiny.h	2.59 KB	-rw-r--r--
srcutree.h	4.87 KB	-rw-r--r--
ssbi.h	726 B	-rw-r--r--
stackdepot.h	539 B	-rw-r--r--
stackleak.h	909 B	-rw-r--r--
stackprotector.h	321 B	-rw-r--r--
stacktrace.h	3.42 KB	-rw-r--r--
start_kernel.h	415 B	-rw-r--r--
stat.h	1.18 KB	-rw-r--r--
statfs.h	1.4 KB	-rw-r--r--
static_key.h	30 B	-rw-r--r--
stddef.h	1.24 KB	-rw-r--r--
stm.h	4.35 KB	-rw-r--r--
stmmac.h	4.79 KB	-rw-r--r--
stmp3xxx_rtc_wdt.h	331 B	-rw-r--r--
stmp_device.h	412 B	-rw-r--r--
stop_machine.h	4.74 KB	-rw-r--r--
string.h	16.59 KB	-rw-r--r--
string_helpers.h	2.53 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--
suspend.h	20.62 KB	-rw-r--r--
svga.h	3.75 KB	-rw-r--r--
sw842.h	328 B	-rw-r--r--
swab.h	569 B	-rw-r--r--
swait.h	10.04 KB	-rw-r--r--
swap.h	21.37 KB	-rw-r--r--
swap_cgroup.h	971 B	-rw-r--r--
swap_slots.h	840 B	-rw-r--r--
swapfile.h	556 B	-rw-r--r--
swapops.h	8.56 KB	-rw-r--r--
swiotlb.h	3 KB	-rw-r--r--
switchtec.h	8.33 KB	-rw-r--r--
sxgbe_platform.h	1.2 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	1.21 KB	-rw-r--r--
syscalls.h	55.6 KB	-rw-r--r--
syscore_ops.h	633 B	-rw-r--r--
sysctl.h	7.78 KB	-rw-r--r--
sysfs.h	17.13 KB	-rw-r--r--
syslog.h	1.24 KB	-rw-r--r--
sysrq.h	1.79 KB	-rw-r--r--
sysv_fs.h	9.03 KB	-rw-r--r--
t10-pi.h	1.5 KB	-rw-r--r--
task_io_accounting.h	1.13 KB	-rw-r--r--
task_io_accounting_ops.h	2.55 KB	-rw-r--r--
task_work.h	617 B	-rw-r--r--
taskstats_kern.h	957 B	-rw-r--r--
tboot.h	3.38 KB	-rw-r--r--
tc.h	3.45 KB	-rw-r--r--
tca6416_keypad.h	701 B	-rw-r--r--
tcp.h	16.11 KB	-rw-r--r--
tee_drv.h	18.2 KB	-rw-r--r--
textsearch.h	4.73 KB	-rw-r--r--
textsearch_fsm.h	1.19 KB	-rw-r--r--
tfrc.h	1.68 KB	-rw-r--r--
thermal.h	19.34 KB	-rw-r--r--
thread_info.h	4.44 KB	-rw-r--r--
threads.h	1.28 KB	-rw-r--r--
thunderbolt.h	19.24 KB	-rw-r--r--
ti-emif-sram.h	5.15 KB	-rw-r--r--
ti_wilink_st.h	13.46 KB	-rw-r--r--
tick.h	9.41 KB	-rw-r--r--
tifm.h	4.66 KB	-rw-r--r--
timb_dma.h	1.17 KB	-rw-r--r--
timb_gpio.h	717 B	-rw-r--r--
time.h	3.75 KB	-rw-r--r--
time32.h	5.76 KB	-rw-r--r--
time64.h	4.6 KB	-rw-r--r--
timecounter.h	4.14 KB	-rw-r--r--
timekeeper_internal.h	5.33 KB	-rw-r--r--
timekeeping.h	7.18 KB	-rw-r--r--
timekeeping32.h	920 B	-rw-r--r--
timer.h	7.54 KB	-rw-r--r--
timerfd.h	508 B	-rw-r--r--
timeriomem-rng.h	432 B	-rw-r--r--
timerqueue.h	1.4 KB	-rw-r--r--
timex.h	6.7 KB	-rw-r--r--
tnum.h	2.95 KB	-rw-r--r--
topology.h	5.55 KB	-rw-r--r--
torture.h	3.21 KB	-rw-r--r--
toshiba.h	460 B	-rw-r--r--
tpm.h	5.48 KB	-rw-r--r--
tpm_command.h	847 B	-rw-r--r--
tpm_eventlog.h	6.53 KB	-rw-r--r--
trace.h	964 B	-rw-r--r--
trace_clock.h	667 B	-rw-r--r--
trace_events.h	20.52 KB	-rw-r--r--
trace_seq.h	3.74 KB	-rw-r--r--
tracefs.h	1.05 KB	-rw-r--r--
tracehook.h	7.25 KB	-rw-r--r--
tracepoint-defs.h	1.03 KB	-rw-r--r--
tracepoint.h	17.97 KB	-rw-r--r--
transport_class.h	2.51 KB	-rw-r--r--
ts-nbus.h	532 B	-rw-r--r--
tsacct_kern.h	1.2 KB	-rw-r--r--
tty.h	28.04 KB	-rw-r--r--
tty_driver.h	15.61 KB	-rw-r--r--
tty_flip.h	1.62 KB	-rw-r--r--
tty_ldisc.h	7.96 KB	-rw-r--r--
typecheck.h	624 B	-rw-r--r--
types.h	5.41 KB	-rw-r--r--
u64_stats_sync.h	5.17 KB	-rw-r--r--
uaccess.h	13.08 KB	-rw-r--r--
ucb1400.h	4.12 KB	-rw-r--r--
ucs2_string.h	662 B	-rw-r--r--
udp.h	4.22 KB	-rw-r--r--
uidgid.h	4.07 KB	-rw-r--r--
uio.h	8.55 KB	-rw-r--r--
uio_driver.h	4.1 KB	-rw-r--r--
umh.h	2.26 KB	-rw-r--r--
unicode.h	946 B	-rw-r--r--
units.h	2.18 KB	-rw-r--r--
uprobes.h	6 KB	-rw-r--r--
usb.h	77.19 KB	-rw-r--r--
usb_usual.h	3.58 KB	-rw-r--r--
usbdevice_fs.h	2.18 KB	-rw-r--r--
user-return-notifier.h	1.18 KB	-rw-r--r--
user.h	22 B	-rw-r--r--
user_namespace.h	4.65 KB	-rw-r--r--
userfaultfd_k.h	3.69 KB	-rw-r--r--
util_macros.h	1.17 KB	-rw-r--r--
uts.h	388 B	-rw-r--r--
utsname.h	1.79 KB	-rw-r--r--
uuid.h	1.99 KB	-rw-r--r--
vbox_utils.h	1.69 KB	-rw-r--r--
verification.h	1.75 KB	-rw-r--r--
vermagic.h	1.13 KB	-rw-r--r--
vexpress.h	1.06 KB	-rw-r--r--
vfio.h	6.29 KB	-rw-r--r--
vfs.h	116 B	-rw-r--r--
vga_switcheroo.h	8.62 KB	-rw-r--r--
vgaarb.h	5.24 KB	-rw-r--r--
via-core.h	6.6 KB	-rw-r--r--
via-gpio.h	310 B	-rw-r--r--
via.h	932 B	-rw-r--r--
via_i2c.h	844 B	-rw-r--r--
videodev2.h	2.68 KB	-rw-r--r--
virtio.h	6.79 KB	-rw-r--r--
virtio_byteorder.h	1.46 KB	-rw-r--r--
virtio_caif.h	492 B	-rw-r--r--
virtio_config.h	13.39 KB	-rw-r--r--
virtio_console.h	1.93 KB	-rw-r--r--
virtio_net.h	5.49 KB	-rw-r--r--
virtio_ring.h	2.96 KB	-rw-r--r--
virtio_vsock.h	5.06 KB	-rw-r--r--
visorbus.h	12.23 KB	-rw-r--r--
vlynq.h	3.22 KB	-rw-r--r--
vm_event_item.h	2.96 KB	-rw-r--r--
vm_sockets.h	287 B	-rw-r--r--
vmacache.h	722 B	-rw-r--r--
vmalloc.h	7.21 KB	-rw-r--r--
vme.h	5.66 KB	-rw-r--r--
vmpressure.h	1.69 KB	-rw-r--r--
vmstat.h	10.51 KB	-rw-r--r--
vmw_vmci_api.h	2.78 KB	-rw-r--r--
vmw_vmci_defs.h	27.47 KB	-rw-r--r--
vringh.h	7.11 KB	-rw-r--r--
vt.h	611 B	-rw-r--r--
vt_buffer.h	1.49 KB	-rw-r--r--
vt_kern.h	6.04 KB	-rw-r--r--
vtime.h	3.57 KB	-rw-r--r--
w1-gpio.h	493 B	-rw-r--r--
w1.h	8.88 KB	-rw-r--r--
wait.h	41.35 KB	-rw-r--r--
wait_bit.h	11.2 KB	-rw-r--r--
watchdog.h	7.73 KB	-rw-r--r--
win_minmax.h	832 B	-rw-r--r--
wireless.h	1.4 KB	-rw-r--r--
wkup_m3_ipc.h	1.75 KB	-rw-r--r--
wl12xx.h	810 B	-rw-r--r--
wm97xx.h	10.61 KB	-rw-r--r--
wmi.h	1.56 KB	-rw-r--r--
workqueue.h	21.03 KB	-rw-r--r--
writeback.h	13.02 KB	-rw-r--r--
ww_mutex.h	12.78 KB	-rw-r--r--
xarray.h	54.24 KB	-rw-r--r--
xattr.h	3.49 KB	-rw-r--r--
xxhash.h	8.27 KB	-rw-r--r--
xz.h	11.16 KB	-rw-r--r--
yam.h	2.18 KB	-rw-r--r--
z2_battery.h	318 B	-rw-r--r--
zbud.h	740 B	-rw-r--r--
zconf.h	1.73 KB	-rw-r--r--
zlib.h	28.11 KB	-rw-r--r--
zorro.h	3.94 KB	-rw-r--r--
zpool.h	3.11 KB	-rw-r--r--
zsmalloc.h	1.63 KB	-rw-r--r--
zstd.h	48.64 KB	-rw-r--r--
zutil.h	2.73 KB	-rw-r--r--

Code Editor : jbd2.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * linux/include/linux/jbd2.h
 *
 * Written by Stephen C. Tweedie <sct@redhat.com>
 *
 * Copyright 1998-2000 Red Hat, Inc --- All Rights Reserved
 *
 * Definitions for transaction data structures for the buffer cache
 * filesystem journaling support.
 */

#ifndef _LINUX_JBD2_H
#define _LINUX_JBD2_H

/* Allow this file to be included directly into e2fsprogs */
#ifndef __KERNEL__
#include "jfs_compat.h"
#define JBD2_DEBUG
#else

#include <linux/types.h>
#include <linux/buffer_head.h>
#include <linux/journal-head.h>
#include <linux/stddef.h>
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/bit_spinlock.h>
#include <crypto/hash.h>
#endif

#define journal_oom_retry 1

/*
 * Define JBD2_PARANIOD_IOFAIL to cause a kernel BUG() if ext4 finds
 * certain classes of error which can occur due to failed IOs.  Under
 * normal use we want ext4 to continue after such errors, because
 * hardware _can_ fail, but for debugging purposes when running tests on
 * known-good hardware we may want to trap these errors.
 */
#undef JBD2_PARANOID_IOFAIL

/*
 * The default maximum commit age, in seconds.
 */
#define JBD2_DEFAULT_MAX_COMMIT_AGE 5

#ifdef CONFIG_JBD2_DEBUG
/*
 * Define JBD2_EXPENSIVE_CHECKING to enable more expensive internal
 * consistency checks.  By default we don't do this unless
 * CONFIG_JBD2_DEBUG is on.
 */
#define JBD2_EXPENSIVE_CHECKING
extern ushort jbd2_journal_enable_debug;
void __jbd2_debug(int level, const char *file, const char *func,
		  unsigned int line, const char *fmt, ...);

#define jbd_debug(n, fmt, a...) \
	__jbd2_debug((n), __FILE__, __func__, __LINE__, (fmt), ##a)
#else
#define jbd_debug(n, fmt, a...)    /**/
#endif

extern void *jbd2_alloc(size_t size, gfp_t flags);
extern void jbd2_free(void *ptr, size_t size);

#define JBD2_MIN_JOURNAL_BLOCKS 1024

#ifdef __KERNEL__

/**
 * typedef handle_t - The handle_t type represents a single atomic update being performed by some process.
 *
 * All filesystem modifications made by the process go
 * through this handle.  Recursive operations (such as quota operations)
 * are gathered into a single update.
 *
 * The buffer credits field is used to account for journaled buffers
 * being modified by the running process.  To ensure that there is
 * enough log space for all outstanding operations, we need to limit the
 * number of outstanding buffers possible at any time.  When the
 * operation completes, any buffer credits not used are credited back to
 * the transaction, so that at all times we know how many buffers the
 * outstanding updates on a transaction might possibly touch.
 *
 * This is an opaque datatype.
 **/
typedef struct jbd2_journal_handle handle_t;	/* Atomic operation type */

/**
 * typedef journal_t - The journal_t maintains all of the journaling state information for a single filesystem.
 *
 * journal_t is linked to from the fs superblock structure.
 *
 * We use the journal_t to keep track of all outstanding transaction
 * activity on the filesystem, and to manage the state of the log
 * writing process.
 *
 * This is an opaque datatype.
 **/
typedef struct journal_s	journal_t;	/* Journal control structure */
#endif

/*
 * Internal structures used by the logging mechanism:
 */

#define JBD2_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */

/*
 * On-disk structures
 */

/*
 * Descriptor block types:
 */

#define JBD2_DESCRIPTOR_BLOCK	1
#define JBD2_COMMIT_BLOCK	2
#define JBD2_SUPERBLOCK_V1	3
#define JBD2_SUPERBLOCK_V2	4
#define JBD2_REVOKE_BLOCK	5

/*
 * Standard header for all descriptor blocks:
 */
typedef struct journal_header_s
{
	__be32		h_magic;
	__be32		h_blocktype;
	__be32		h_sequence;
} journal_header_t;

/*
 * Checksum types.
 */
#define JBD2_CRC32_CHKSUM   1
#define JBD2_MD5_CHKSUM     2
#define JBD2_SHA1_CHKSUM    3
#define JBD2_CRC32C_CHKSUM  4

#define JBD2_CRC32_CHKSUM_SIZE 4

#define JBD2_CHECKSUM_BYTES (32 / sizeof(u32))
/*
 * Commit block header for storing transactional checksums:
 *
 * NOTE: If FEATURE_COMPAT_CHECKSUM (checksum v1) is set, the h_chksum*
 * fields are used to store a checksum of the descriptor and data blocks.
 *
 * If FEATURE_INCOMPAT_CSUM_V2 (checksum v2) is set, then the h_chksum
 * field is used to store crc32c(uuid+commit_block).  Each journal metadata
 * block gets its own checksum, and data block checksums are stored in
 * journal_block_tag (in the descriptor).  The other h_chksum* fields are
 * not used.
 *
 * If FEATURE_INCOMPAT_CSUM_V3 is set, the descriptor block uses
 * journal_block_tag3_t to store a full 32-bit checksum.  Everything else
 * is the same as v2.
 *
 * Checksum v1, v2, and v3 are mutually exclusive features.
 */
struct commit_header {
	__be32		h_magic;
	__be32          h_blocktype;
	__be32          h_sequence;
	unsigned char   h_chksum_type;
	unsigned char   h_chksum_size;
	unsigned char 	h_padding[2];
	__be32 		h_chksum[JBD2_CHECKSUM_BYTES];
	__be64		h_commit_sec;
	__be32		h_commit_nsec;
};

/*
 * The block tag: used to describe a single buffer in the journal.
 * t_blocknr_high is only used if INCOMPAT_64BIT is set, so this
 * raw struct shouldn't be used for pointer math or sizeof() - use
 * journal_tag_bytes(journal) instead to compute this.
 */
typedef struct journal_block_tag3_s
{
	__be32		t_blocknr;	/* The on-disk block number */
	__be32		t_flags;	/* See below */
	__be32		t_blocknr_high; /* most-significant high 32bits. */
	__be32		t_checksum;	/* crc32c(uuid+seq+block) */
} journal_block_tag3_t;

typedef struct journal_block_tag_s
{
	__be32		t_blocknr;	/* The on-disk block number */
	__be16		t_checksum;	/* truncated crc32c(uuid+seq+block) */
	__be16		t_flags;	/* See below */
	__be32		t_blocknr_high; /* most-significant high 32bits. */
} journal_block_tag_t;

/* Tail of descriptor or revoke block, for checksumming */
struct jbd2_journal_block_tail {
	__be32		t_checksum;	/* crc32c(uuid+descr_block) */
};

/*
 * The revoke descriptor: used on disk to describe a series of blocks to
 * be revoked from the log
 */
typedef struct jbd2_journal_revoke_header_s
{
	journal_header_t r_header;
	__be32		 r_count;	/* Count of bytes used in the block */
} jbd2_journal_revoke_header_t;

/* Definitions for the journal tag flags word: */
#define JBD2_FLAG_ESCAPE		1	/* on-disk block is escaped */
#define JBD2_FLAG_SAME_UUID	2	/* block has same uuid as previous */
#define JBD2_FLAG_DELETED	4	/* block deleted by this transaction */
#define JBD2_FLAG_LAST_TAG	8	/* last tag in this descriptor block */

/*
 * The journal superblock.  All fields are in big-endian byte order.
 */
typedef struct journal_superblock_s
{
/* 0x0000 */
	journal_header_t s_header;

/* 0x000C */
	/* Static information describing the journal */
	__be32	s_blocksize;		/* journal device blocksize */
	__be32	s_maxlen;		/* total blocks in journal file */
	__be32	s_first;		/* first block of log information */

/* 0x0018 */
	/* Dynamic information describing the current state of the log */
	__be32	s_sequence;		/* first commit ID expected in log */
	__be32	s_start;		/* blocknr of start of log */

/* 0x0020 */
	/* Error value, as set by jbd2_journal_abort(). */
	__be32	s_errno;

/* 0x0024 */
	/* Remaining fields are only valid in a version-2 superblock */
	__be32	s_feature_compat;	/* compatible feature set */
	__be32	s_feature_incompat;	/* incompatible feature set */
	__be32	s_feature_ro_compat;	/* readonly-compatible feature set */
/* 0x0030 */
	__u8	s_uuid[16];		/* 128-bit uuid for journal */

/* 0x0040 */
	__be32	s_nr_users;		/* Nr of filesystems sharing log */

__be32	s_dynsuper;		/* Blocknr of dynamic superblock copy*/

/* 0x0048 */
	__be32	s_max_transaction;	/* Limit of journal blocks per trans.*/
	__be32	s_max_trans_data;	/* Limit of data blocks per trans. */

/* 0x0050 */
	__u8	s_checksum_type;	/* checksum type */
	__u8	s_padding2[3];
	__u32	s_padding[42];
	__be32	s_checksum;		/* crc32c(superblock) */

/* 0x0100 */
	__u8	s_users[16*48];		/* ids of all fs'es sharing the log */
/* 0x0400 */
} journal_superblock_t;

/* Use the jbd2_{has,set,clear}_feature_* helpers; these will be removed */
#define JBD2_HAS_COMPAT_FEATURE(j,mask)					\
	((j)->j_format_version >= 2 &&					\
	 ((j)->j_superblock->s_feature_compat & cpu_to_be32((mask))))
#define JBD2_HAS_RO_COMPAT_FEATURE(j,mask)				\
	((j)->j_format_version >= 2 &&					\
	 ((j)->j_superblock->s_feature_ro_compat & cpu_to_be32((mask))))
#define JBD2_HAS_INCOMPAT_FEATURE(j,mask)				\
	((j)->j_format_version >= 2 &&					\
	 ((j)->j_superblock->s_feature_incompat & cpu_to_be32((mask))))

#define JBD2_FEATURE_COMPAT_CHECKSUM		0x00000001

#define JBD2_FEATURE_INCOMPAT_REVOKE		0x00000001
#define JBD2_FEATURE_INCOMPAT_64BIT		0x00000002
#define JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT	0x00000004
#define JBD2_FEATURE_INCOMPAT_CSUM_V2		0x00000008
#define JBD2_FEATURE_INCOMPAT_CSUM_V3		0x00000010

/* See "journal feature predicate functions" below */

/* Features known to this kernel version: */
#define JBD2_KNOWN_COMPAT_FEATURES	JBD2_FEATURE_COMPAT_CHECKSUM
#define JBD2_KNOWN_ROCOMPAT_FEATURES	0
#define JBD2_KNOWN_INCOMPAT_FEATURES	(JBD2_FEATURE_INCOMPAT_REVOKE | \
					JBD2_FEATURE_INCOMPAT_64BIT | \
					JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT | \
					JBD2_FEATURE_INCOMPAT_CSUM_V2 | \
					JBD2_FEATURE_INCOMPAT_CSUM_V3)

#ifdef __KERNEL__

#include <linux/fs.h>
#include <linux/sched.h>

enum jbd_state_bits {
	BH_JBD			/* Has an attached ext3 journal_head */
	  = BH_PrivateStart,
	BH_JWrite,		/* Being written to log (@@@ DEBUGGING) */
	BH_Freed,		/* Has been freed (truncated) */
	BH_Revoked,		/* Has been revoked from the log */
	BH_RevokeValid,		/* Revoked flag is valid */
	BH_JBDDirty,		/* Is dirty but journaled */
	BH_State,		/* Pins most journal_head state */
	BH_JournalHead,		/* Pins bh->b_private and jh->b_bh */
	BH_Shadow,		/* IO on shadow buffer is running */
	BH_Verified,		/* Metadata block has been verified ok */
	BH_JBDPrivateStart,	/* First bit available for private use by FS */
};

BUFFER_FNS(JBD, jbd)
BUFFER_FNS(JWrite, jwrite)
BUFFER_FNS(JBDDirty, jbddirty)
TAS_BUFFER_FNS(JBDDirty, jbddirty)
BUFFER_FNS(Revoked, revoked)
TAS_BUFFER_FNS(Revoked, revoked)
BUFFER_FNS(RevokeValid, revokevalid)
TAS_BUFFER_FNS(RevokeValid, revokevalid)
BUFFER_FNS(Freed, freed)
BUFFER_FNS(Shadow, shadow)
BUFFER_FNS(Verified, verified)

static inline struct buffer_head *jh2bh(struct journal_head *jh)
{
	return jh->b_bh;
}

static inline struct journal_head *bh2jh(struct buffer_head *bh)
{
	return bh->b_private;
}

static inline void jbd_lock_bh_state(struct buffer_head *bh)
{
	bit_spin_lock(BH_State, &bh->b_state);
}

static inline int jbd_trylock_bh_state(struct buffer_head *bh)
{
	return bit_spin_trylock(BH_State, &bh->b_state);
}

static inline int jbd_is_locked_bh_state(struct buffer_head *bh)
{
	return bit_spin_is_locked(BH_State, &bh->b_state);
}

static inline void jbd_unlock_bh_state(struct buffer_head *bh)
{
	bit_spin_unlock(BH_State, &bh->b_state);
}

static inline void jbd_lock_bh_journal_head(struct buffer_head *bh)
{
	bit_spin_lock(BH_JournalHead, &bh->b_state);
}

static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh)
{
	bit_spin_unlock(BH_JournalHead, &bh->b_state);
}

#define J_ASSERT(assert)	BUG_ON(!(assert))

#define J_ASSERT_BH(bh, expr)	J_ASSERT(expr)
#define J_ASSERT_JH(jh, expr)	J_ASSERT(expr)

#if defined(JBD2_PARANOID_IOFAIL)
#define J_EXPECT(expr, why...)		J_ASSERT(expr)
#define J_EXPECT_BH(bh, expr, why...)	J_ASSERT_BH(bh, expr)
#define J_EXPECT_JH(jh, expr, why...)	J_ASSERT_JH(jh, expr)
#else
#define __journal_expect(expr, why...)					     \
	({								     \
		int val = (expr);					     \
		if (!val) {						     \
			printk(KERN_ERR					     \
			       "JBD2 unexpected failure: %s: %s;\n",	     \
			       __func__, #expr);			     \
			printk(KERN_ERR why "\n");			     \
		}							     \
		val;							     \
	})
#define J_EXPECT(expr, why...)		__journal_expect(expr, ## why)
#define J_EXPECT_BH(bh, expr, why...)	__journal_expect(expr, ## why)
#define J_EXPECT_JH(jh, expr, why...)	__journal_expect(expr, ## why)
#endif

/* Flags in jbd_inode->i_flags */
#define __JI_COMMIT_RUNNING 0
#define __JI_WRITE_DATA 1
#define __JI_WAIT_DATA 2

/*
 * Commit of the inode data in progress. We use this flag to protect us from
 * concurrent deletion of inode. We cannot use reference to inode for this
 * since we cannot afford doing last iput() on behalf of kjournald
 */
#define JI_COMMIT_RUNNING (1 << __JI_COMMIT_RUNNING)
/* Write allocated dirty buffers in this inode before commit */
#define JI_WRITE_DATA (1 << __JI_WRITE_DATA)
/* Wait for outstanding data writes for this inode before commit */
#define JI_WAIT_DATA (1 << __JI_WAIT_DATA)

/**
 * struct jbd2_inode - The jbd_inode type is the structure linking inodes in
 * ordered mode present in a transaction so that we can sync them during commit.
 */
struct jbd2_inode {
	/**
	 * @i_transaction:
	 *
	 * Which transaction does this inode belong to? Either the running
	 * transaction or the committing one. [j_list_lock]
	 */
	transaction_t *i_transaction;

/**
	 * @i_next_transaction:
	 *
	 * Pointer to the running transaction modifying inode's data in case
	 * there is already a committing transaction touching it. [j_list_lock]
	 */
	transaction_t *i_next_transaction;

/**
	 * @i_list: List of inodes in the i_transaction [j_list_lock]
	 */
	struct list_head i_list;

/**
	 * @i_vfs_inode:
	 *
	 * VFS inode this inode belongs to [constant for lifetime of structure]
	 */
	struct inode *i_vfs_inode;

/**
	 * @i_flags: Flags of inode [j_list_lock]
	 */
	unsigned long i_flags;

/**
	 * @i_dirty_start:
	 *
	 * Offset in bytes where the dirty range for this inode starts.
	 * [j_list_lock]
	 */
	loff_t i_dirty_start;

/**
	 * @i_dirty_end:
	 *
	 * Inclusive offset in bytes where the dirty range for this inode
	 * ends. [j_list_lock]
	 */
	loff_t i_dirty_end;
};

struct jbd2_revoke_table_s;

/**
 * struct handle_s - The handle_s type is the concrete type associated with
 *     handle_t.
 * @h_transaction: Which compound transaction is this update a part of?
 * @h_journal: Which journal handle belongs to - used iff h_reserved set.
 * @h_rsv_handle: Handle reserved for finishing the logical operation.
 * @h_buffer_credits: Number of remaining buffers we are allowed to dirty.
 * @h_ref: Reference count on this handle.
 * @h_err: Field for caller's use to track errors through large fs operations.
 * @h_sync: Flag for sync-on-close.
 * @h_jdata: Flag to force data journaling.
 * @h_reserved: Flag for handle for reserved credits.
 * @h_aborted: Flag indicating fatal error on handle.
 * @h_type: For handle statistics.
 * @h_line_no: For handle statistics.
 * @h_start_jiffies: Handle Start time.
 * @h_requested_credits: Holds @h_buffer_credits after handle is started.
 * @saved_alloc_context: Saved context while transaction is open.
 **/

/* Docbook can't yet cope with the bit fields, but will leave the documentation
 * in so it can be fixed later.
 */

struct jbd2_journal_handle
{
	union {
		transaction_t	*h_transaction;
		/* Which journal handle belongs to - used iff h_reserved set */
		journal_t	*h_journal;
	};

handle_t		*h_rsv_handle;
	int			h_buffer_credits;
	int			h_ref;
	int			h_err;

/* Flags [no locking] */
	unsigned int	h_sync:		1;
	unsigned int	h_jdata:	1;
	unsigned int	h_reserved:	1;
	unsigned int	h_aborted:	1;
	unsigned int	h_type:		8;
	unsigned int	h_line_no:	16;

unsigned long		h_start_jiffies;
	unsigned int		h_requested_credits;

unsigned int		saved_alloc_context;
};

/*
 * Some stats for checkpoint phase
 */
struct transaction_chp_stats_s {
	unsigned long		cs_chp_time;
	__u32			cs_forced_to_close;
	__u32			cs_written;
	__u32			cs_dropped;
};

/* The transaction_t type is the guts of the journaling mechanism.  It
 * tracks a compound transaction through its various states:
 *
 * RUNNING:	accepting new updates
 * LOCKED:	Updates still running but we don't accept new ones
 * RUNDOWN:	Updates are tidying up but have finished requesting
 *		new buffers to modify (state not used for now)
 * FLUSH:       All updates complete, but we are still writing to disk
 * COMMIT:      All data on disk, writing commit record
 * FINISHED:	We still have to keep the transaction for checkpointing.
 *
 * The transaction keeps track of all of the buffers modified by a
 * running transaction, and all of the buffers committed but not yet
 * flushed to home for finished transactions.
 */

/*
 * Lock ranking:
 *
 *    j_list_lock
 *      ->jbd_lock_bh_journal_head()	(This is "innermost")
 *
 *    j_state_lock
 *    ->jbd_lock_bh_state()
 *
 *    jbd_lock_bh_state()
 *    ->j_list_lock
 *
 *    j_state_lock
 *    ->t_handle_lock
 *
 *    j_state_lock
 *    ->j_list_lock			(journal_unmap_buffer)
 *
 */

struct transaction_s
{
	/* Pointer to the journal for this transaction. [no locking] */
	journal_t		*t_journal;

/* Sequence number for this transaction [no locking] */
	tid_t			t_tid;

/*
	 * Transaction's current state
	 * [no locking - only kjournald2 alters this]
	 * [j_list_lock] guards transition of a transaction into T_FINISHED
	 * state and subsequent call of __jbd2_journal_drop_transaction()
	 * FIXME: needs barriers
	 * KLUDGE: [use j_state_lock]
	 */
	enum {
		T_RUNNING,
		T_LOCKED,
		T_SWITCH,
		T_FLUSH,
		T_COMMIT,
		T_COMMIT_DFLUSH,
		T_COMMIT_JFLUSH,
		T_COMMIT_CALLBACK,
		T_FINISHED
	}			t_state;

/*
	 * Where in the log does this transaction's commit start? [no locking]
	 */
	unsigned long		t_log_start;

/* Number of buffers on the t_buffers list [j_list_lock] */
	int			t_nr_buffers;

/*
	 * Doubly-linked circular list of all buffers reserved but not yet
	 * modified by this transaction [j_list_lock]
	 */
	struct journal_head	*t_reserved_list;

/*
	 * Doubly-linked circular list of all metadata buffers owned by this
	 * transaction [j_list_lock]
	 */
	struct journal_head	*t_buffers;

/*
	 * Doubly-linked circular list of all forget buffers (superseded
	 * buffers which we can un-checkpoint once this transaction commits)
	 * [j_list_lock]
	 */
	struct journal_head	*t_forget;

/*
	 * Doubly-linked circular list of all buffers still to be flushed before
	 * this transaction can be checkpointed. [j_list_lock]
	 */
	struct journal_head	*t_checkpoint_list;

/*
	 * Doubly-linked circular list of all buffers submitted for IO while
	 * checkpointing. [j_list_lock]
	 */
	struct journal_head	*t_checkpoint_io_list;

/*
	 * Doubly-linked circular list of metadata buffers being shadowed by log
	 * IO.  The IO buffers on the iobuf list and the shadow buffers on this
	 * list match each other one for one at all times. [j_list_lock]
	 */
	struct journal_head	*t_shadow_list;

/*
	 * List of inodes associated with the transaction; e.g., ext4 uses
	 * this to track inodes in data=ordered and data=journal mode that
	 * need special handling on transaction commit; also used by ocfs2.
	 * [j_list_lock]
	 */
	struct list_head	t_inode_list;

/*
	 * Protects info related to handles
	 */
	spinlock_t		t_handle_lock;

/*
	 * Longest time some handle had to wait for running transaction
	 */
	unsigned long		t_max_wait;

/*
	 * When transaction started
	 */
	unsigned long		t_start;

/*
	 * When commit was requested
	 */
	unsigned long		t_requested;

/*
	 * Checkpointing stats [j_checkpoint_sem]
	 */
	struct transaction_chp_stats_s t_chp_stats;

/*
	 * Number of outstanding updates running on this transaction
	 * [none]
	 */
	atomic_t		t_updates;

/*
	 * Number of buffers reserved for use by all handles in this transaction
	 * handle but not yet modified. [none]
	 */
	atomic_t		t_outstanding_credits;

/*
	 * Forward and backward links for the circular list of all transactions
	 * awaiting checkpoint. [j_list_lock]
	 */
	transaction_t		*t_cpnext, *t_cpprev;

/*
	 * When will the transaction expire (become due for commit), in jiffies?
	 * [no locking]
	 */
	unsigned long		t_expires;

/*
	 * When this transaction started, in nanoseconds [no locking]
	 */
	ktime_t			t_start_time;

/*
	 * How many handles used this transaction? [none]
	 */
	atomic_t		t_handle_count;

/*
	 * This transaction is being forced and some process is
	 * waiting for it to finish.
	 */
	unsigned int t_synchronous_commit:1;

/* Disk flush needs to be sent to fs partition [no locking] */
	int			t_need_data_flush;

/*
	 * For use by the filesystem to store fs-specific data
	 * structures associated with the transaction
	 */
	struct list_head	t_private_list;
};

struct transaction_run_stats_s {
	unsigned long		rs_wait;
	unsigned long		rs_request_delay;
	unsigned long		rs_running;
	unsigned long		rs_locked;
	unsigned long		rs_flushing;
	unsigned long		rs_logging;

__u32			rs_handle_count;
	__u32			rs_blocks;
	__u32			rs_blocks_logged;
};

struct transaction_stats_s {
	unsigned long		ts_tid;
	unsigned long		ts_requested;
	struct transaction_run_stats_s run;
};

static inline unsigned long
jbd2_time_diff(unsigned long start, unsigned long end)
{
	if (end >= start)
		return end - start;

return end + (MAX_JIFFY_OFFSET - start);
}

#define JBD2_NR_BATCH	64

/**
 * struct journal_s - The journal_s type is the concrete type associated with
 *     journal_t.
 */
struct journal_s
{
	/**
	 * @j_flags: General journaling state flags [j_state_lock]
	 */
	unsigned long		j_flags;

/**
	 * @j_errno:
	 *
	 * Is there an outstanding uncleared error on the journal (from a prior
	 * abort)? [j_state_lock]
	 */
	int			j_errno;

/**
	 * @j_sb_buffer: The first part of the superblock buffer.
	 */
	struct buffer_head	*j_sb_buffer;

/**
	 * @j_superblock: The second part of the superblock buffer.
	 */
	journal_superblock_t	*j_superblock;

/**
	 * @j_format_version: Version of the superblock format.
	 */
	int			j_format_version;

/**
	 * @j_state_lock: Protect the various scalars in the journal.
	 */
	rwlock_t		j_state_lock;

/**
	 * @j_barrier_count:
	 *
	 * Number of processes waiting to create a barrier lock [j_state_lock]
	 */
	int			j_barrier_count;

/**
	 * @j_barrier: The barrier lock itself.
	 */
	struct mutex		j_barrier;

/**
	 * @j_running_transaction:
	 *
	 * Transactions: The current running transaction...
	 * [j_state_lock] [caller holding open handle]
	 */
	transaction_t		*j_running_transaction;

/**
	 * @j_committing_transaction:
	 *
	 * the transaction we are pushing to disk
	 * [j_state_lock] [caller holding open handle]
	 */
	transaction_t		*j_committing_transaction;

/**
	 * @j_checkpoint_transactions:
	 *
	 * ... and a linked circular list of all transactions waiting for
	 * checkpointing. [j_list_lock]
	 */
	transaction_t		*j_checkpoint_transactions;

/**
	 * @j_wait_transaction_locked:
	 *
	 * Wait queue for waiting for a locked transaction to start committing,
	 * or for a barrier lock to be released.
	 */
	wait_queue_head_t	j_wait_transaction_locked;

/**
	 * @j_wait_done_commit: Wait queue for waiting for commit to complete.
	 */
	wait_queue_head_t	j_wait_done_commit;

/**
	 * @j_wait_commit: Wait queue to trigger commit.
	 */
	wait_queue_head_t	j_wait_commit;

/**
	 * @j_wait_updates: Wait queue to wait for updates to complete.
	 */
	wait_queue_head_t	j_wait_updates;

/**
	 * @j_wait_reserved:
	 *
	 * Wait queue to wait for reserved buffer credits to drop.
	 */
	wait_queue_head_t	j_wait_reserved;

/**
	 * @j_checkpoint_mutex:
	 *
	 * Semaphore for locking against concurrent checkpoints.
	 */
	struct mutex		j_checkpoint_mutex;

/**
	 * @j_chkpt_bhs:
	 *
	 * List of buffer heads used by the checkpoint routine.  This
	 * was moved from jbd2_log_do_checkpoint() to reduce stack
	 * usage.  Access to this array is controlled by the
	 * @j_checkpoint_mutex.  [j_checkpoint_mutex]
	 */
	struct buffer_head	*j_chkpt_bhs[JBD2_NR_BATCH];

/**
	 * @j_head:
	 *
	 * Journal head: identifies the first unused block in the journal.
	 * [j_state_lock]
	 */
	unsigned long		j_head;

/**
	 * @j_tail:
	 *
	 * Journal tail: identifies the oldest still-used block in the journal.
	 * [j_state_lock]
	 */
	unsigned long		j_tail;

/**
	 * @j_free:
	 *
	 * Journal free: how many free blocks are there in the journal?
	 * [j_state_lock]
	 */
	unsigned long		j_free;

/**
	 * @j_first:
	 *
	 * The block number of the first usable block in the journal
	 * [j_state_lock].
	 */
	unsigned long		j_first;

/**
	 * @j_last:
	 *
	 * The block number one beyond the last usable block in the journal
	 * [j_state_lock].
	 */
	unsigned long		j_last;

/**
	 * @j_dev: Device where we store the journal.
	 */
	struct block_device	*j_dev;

/**
	 * @j_blocksize: Block size for the location where we store the journal.
	 */
	int			j_blocksize;

/**
	 * @j_blk_offset:
	 *
	 * Starting block offset into the device where we store the journal.
	 */
	unsigned long long	j_blk_offset;

/**
	 * @j_devname: Journal device name.
	 */
	char			j_devname[BDEVNAME_SIZE+24];

/**
	 * @j_fs_dev:
	 *
	 * Device which holds the client fs.  For internal journal this will be
	 * equal to j_dev.
	 */
	struct block_device	*j_fs_dev;

/**
	 * @j_maxlen: Total maximum capacity of the journal region on disk.
	 */
	unsigned int		j_maxlen;

/**
	 * @j_reserved_credits:
	 *
	 * Number of buffers reserved from the running transaction.
	 */
	atomic_t		j_reserved_credits;

/**
	 * @j_list_lock: Protects the buffer lists and internal buffer state.
	 */
	spinlock_t		j_list_lock;

/**
	 * @j_inode:
	 *
	 * Optional inode where we store the journal.  If present, all
	 * journal block numbers are mapped into this inode via bmap().
	 */
	struct inode		*j_inode;

/**
	 * @j_tail_sequence:
	 *
	 * Sequence number of the oldest transaction in the log [j_state_lock]
	 */
	tid_t			j_tail_sequence;

/**
	 * @j_transaction_sequence:
	 *
	 * Sequence number of the next transaction to grant [j_state_lock]
	 */
	tid_t			j_transaction_sequence;

/**
	 * @j_commit_sequence:
	 *
	 * Sequence number of the most recently committed transaction
	 * [j_state_lock].
	 */
	tid_t			j_commit_sequence;

/**
	 * @j_commit_request:
	 *
	 * Sequence number of the most recent transaction wanting commit
	 * [j_state_lock]
	 */
	tid_t			j_commit_request;

/**
	 * @j_uuid:
	 *
	 * Journal uuid: identifies the object (filesystem, LVM volume etc)
	 * backed by this journal.  This will eventually be replaced by an array
	 * of uuids, allowing us to index multiple devices within a single
	 * journal and to perform atomic updates across them.
	 */
	__u8			j_uuid[16];

/**
	 * @j_task: Pointer to the current commit thread for this journal.
	 */
	struct task_struct	*j_task;

/**
	 * @j_max_transaction_buffers:
	 *
	 * Maximum number of metadata buffers to allow in a single compound
	 * commit transaction.
	 */
	int			j_max_transaction_buffers;

/**
	 * @j_commit_interval:
	 *
	 * What is the maximum transaction lifetime before we begin a commit?
	 */
	unsigned long		j_commit_interval;

/**
	 * @j_commit_timer: The timer used to wakeup the commit thread.
	 */
	struct timer_list	j_commit_timer;

/**
	 * @j_revoke_lock: Protect the revoke table.
	 */
	spinlock_t		j_revoke_lock;

/**
	 * @j_revoke:
	 *
	 * The revoke table - maintains the list of revoked blocks in the
	 * current transaction.
	 */
	struct jbd2_revoke_table_s *j_revoke;

/**
	 * @j_revoke_table: Alternate revoke tables for j_revoke.
	 */
	struct jbd2_revoke_table_s *j_revoke_table[2];

/**
	 * @j_wbuf: Array of bhs for jbd2_journal_commit_transaction.
	 */
	struct buffer_head	**j_wbuf;

/**
	 * @j_wbufsize:
	 *
	 * Size of @j_wbuf array.
	 */
	int			j_wbufsize;

/**
	 * @j_last_sync_writer:
	 *
	 * The pid of the last person to run a synchronous operation
	 * through the journal.
	 */
	pid_t			j_last_sync_writer;

/**
	 * @j_average_commit_time:
	 *
	 * The average amount of time in nanoseconds it takes to commit a
	 * transaction to disk. [j_state_lock]
	 */
	u64			j_average_commit_time;

/**
	 * @j_min_batch_time:
	 *
	 * Minimum time that we should wait for additional filesystem operations
	 * to get batched into a synchronous handle in microseconds.
	 */
	u32			j_min_batch_time;

/**
	 * @j_max_batch_time:
	 *
	 * Maximum time that we should wait for additional filesystem operations
	 * to get batched into a synchronous handle in microseconds.
	 */
	u32			j_max_batch_time;

/**
	 * @j_commit_callback:
	 *
	 * This function is called when a transaction is closed.
	 */
	void			(*j_commit_callback)(journal_t *,
						     transaction_t *);

/**
	 * @j_submit_inode_data_buffers:
	 *
	 * This function is called for all inodes associated with the
	 * committing transaction marked with JI_WRITE_DATA flag
	 * before we start to write out the transaction to the journal.
	 */
	int			(*j_submit_inode_data_buffers)
					(struct jbd2_inode *);

/**
	 * @j_finish_inode_data_buffers:
	 *
	 * This function is called for all inodes associated with the
	 * committing transaction marked with JI_WAIT_DATA flag
	 * after we have written the transaction to the journal
	 * but before we write out the commit block.
	 */
	int			(*j_finish_inode_data_buffers)
					(struct jbd2_inode *);

/*
	 * Journal statistics
	 */

/**
	 * @j_history_lock: Protect the transactions statistics history.
	 */
	spinlock_t		j_history_lock;

/**
	 * @j_proc_entry: procfs entry for the jbd statistics directory.
	 */
	struct proc_dir_entry	*j_proc_entry;

/**
	 * @j_stats: Overall statistics.
	 */
	struct transaction_stats_s j_stats;

/**
	 * @j_failed_commit: Failed journal commit ID.
	 */
	unsigned int		j_failed_commit;

/**
	 * @j_private:
	 *
	 * An opaque pointer to fs-private information.  ext3 puts its
	 * superblock pointer here.
	 */
	void *j_private;

/**
	 * @j_chksum_driver:
	 *
	 * Reference to checksum algorithm driver via cryptoapi.
	 */
	struct crypto_shash *j_chksum_driver;

/**
	 * @j_csum_seed:
	 *
	 * Precomputed journal UUID checksum for seeding other checksums.
	 */
	__u32 j_csum_seed;

#ifdef CONFIG_DEBUG_LOCK_ALLOC
	/**
	 * @j_trans_commit_map:
	 *
	 * Lockdep entity to track transaction commit dependencies. Handles
	 * hold this "lock" for read, when we wait for commit, we acquire the
	 * "lock" for writing. This matches the properties of jbd2 journalling
	 * where the running transaction has to wait for all handles to be
	 * dropped to commit that transaction and also acquiring a handle may
	 * require transaction commit to finish.
	 */
	struct lockdep_map	j_trans_commit_map;
#endif
};

#define jbd2_might_wait_for_commit(j) \
	do { \
		rwsem_acquire(&j->j_trans_commit_map, 0, 0, _THIS_IP_); \
		rwsem_release(&j->j_trans_commit_map, 1, _THIS_IP_); \
	} while (0)

/* journal feature predicate functions */
#define JBD2_FEATURE_COMPAT_FUNCS(name, flagname) \
static inline bool jbd2_has_feature_##name(journal_t *j) \
{ \
	return ((j)->j_format_version >= 2 && \
		((j)->j_superblock->s_feature_compat & \
		 cpu_to_be32(JBD2_FEATURE_COMPAT_##flagname)) != 0); \
} \
static inline void jbd2_set_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_compat |= \
		cpu_to_be32(JBD2_FEATURE_COMPAT_##flagname); \
} \
static inline void jbd2_clear_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_compat &= \
		~cpu_to_be32(JBD2_FEATURE_COMPAT_##flagname); \
}

#define JBD2_FEATURE_RO_COMPAT_FUNCS(name, flagname) \
static inline bool jbd2_has_feature_##name(journal_t *j) \
{ \
	return ((j)->j_format_version >= 2 && \
		((j)->j_superblock->s_feature_ro_compat & \
		 cpu_to_be32(JBD2_FEATURE_RO_COMPAT_##flagname)) != 0); \
} \
static inline void jbd2_set_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_ro_compat |= \
		cpu_to_be32(JBD2_FEATURE_RO_COMPAT_##flagname); \
} \
static inline void jbd2_clear_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_ro_compat &= \
		~cpu_to_be32(JBD2_FEATURE_RO_COMPAT_##flagname); \
}

#define JBD2_FEATURE_INCOMPAT_FUNCS(name, flagname) \
static inline bool jbd2_has_feature_##name(journal_t *j) \
{ \
	return ((j)->j_format_version >= 2 && \
		((j)->j_superblock->s_feature_incompat & \
		 cpu_to_be32(JBD2_FEATURE_INCOMPAT_##flagname)) != 0); \
} \
static inline void jbd2_set_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_incompat |= \
		cpu_to_be32(JBD2_FEATURE_INCOMPAT_##flagname); \
} \
static inline void jbd2_clear_feature_##name(journal_t *j) \
{ \
	(j)->j_superblock->s_feature_incompat &= \
		~cpu_to_be32(JBD2_FEATURE_INCOMPAT_##flagname); \
}

JBD2_FEATURE_COMPAT_FUNCS(checksum,		CHECKSUM)

JBD2_FEATURE_INCOMPAT_FUNCS(revoke,		REVOKE)
JBD2_FEATURE_INCOMPAT_FUNCS(64bit,		64BIT)
JBD2_FEATURE_INCOMPAT_FUNCS(async_commit,	ASYNC_COMMIT)
JBD2_FEATURE_INCOMPAT_FUNCS(csum2,		CSUM_V2)
JBD2_FEATURE_INCOMPAT_FUNCS(csum3,		CSUM_V3)

/*
 * Journal flag definitions
 */
#define JBD2_UNMOUNT	0x001	/* Journal thread is being destroyed */
#define JBD2_ABORT	0x002	/* Journaling has been aborted for errors. */
#define JBD2_ACK_ERR	0x004	/* The errno in the sb has been acked */
#define JBD2_FLUSHED	0x008	/* The journal superblock has been flushed */
#define JBD2_LOADED	0x010	/* The journal superblock has been loaded */
#define JBD2_BARRIER	0x020	/* Use IDE barriers */
#define JBD2_ABORT_ON_SYNCDATA_ERR	0x040	/* Abort the journal on file
						 * data write error in ordered
						 * mode */
#define JBD2_REC_ERR	0x080	/* The errno in the sb has been recorded */

/*
 * Function declarations for the journaling transaction and buffer
 * management
 */

/* Filing buffers */
extern void jbd2_journal_unfile_buffer(journal_t *, struct journal_head *);
extern void __jbd2_journal_refile_buffer(struct journal_head *);
extern void jbd2_journal_refile_buffer(journal_t *, struct journal_head *);
extern void __jbd2_journal_file_buffer(struct journal_head *, transaction_t *, int);
extern void __journal_free_buffer(struct journal_head *bh);
extern void jbd2_journal_file_buffer(struct journal_head *, transaction_t *, int);
extern void __journal_clean_data_list(transaction_t *transaction);
static inline void jbd2_file_log_bh(struct list_head *head, struct buffer_head *bh)
{
	list_add_tail(&bh->b_assoc_buffers, head);
}
static inline void jbd2_unfile_log_bh(struct buffer_head *bh)
{
	list_del_init(&bh->b_assoc_buffers);
}

/* Log buffer allocation */
struct buffer_head *jbd2_journal_get_descriptor_buffer(transaction_t *, int);
void jbd2_descriptor_block_csum_set(journal_t *, struct buffer_head *);
int jbd2_journal_next_log_block(journal_t *, unsigned long long *);
int jbd2_journal_get_log_tail(journal_t *journal, tid_t *tid,
			      unsigned long *block);
int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
void jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);

/* Commit management */
extern void jbd2_journal_commit_transaction(journal_t *);

/* Checkpoint list management */
void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy);
int __jbd2_journal_remove_checkpoint(struct journal_head *);
void jbd2_journal_destroy_checkpoint(journal_t *journal);
void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *);

/*
 * Triggers
 */

struct jbd2_buffer_trigger_type {
	/*
	 * Fired a the moment data to write to the journal are known to be
	 * stable - so either at the moment b_frozen_data is created or just
	 * before a buffer is written to the journal.  mapped_data is a mapped
	 * buffer that is the frozen data for commit.
	 */
	void (*t_frozen)(struct jbd2_buffer_trigger_type *type,
			 struct buffer_head *bh, void *mapped_data,
			 size_t size);

/*
	 * Fired during journal abort for dirty buffers that will not be
	 * committed.
	 */
	void (*t_abort)(struct jbd2_buffer_trigger_type *type,
			struct buffer_head *bh);
};

extern void jbd2_buffer_frozen_trigger(struct journal_head *jh,
				       void *mapped_data,
				       struct jbd2_buffer_trigger_type *triggers);
extern void jbd2_buffer_abort_trigger(struct journal_head *jh,
				      struct jbd2_buffer_trigger_type *triggers);

/* Buffer IO */
extern int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
					      struct journal_head *jh_in,
					      struct buffer_head **bh_out,
					      sector_t blocknr);

/* Transaction locking */
extern void		__wait_on_journal (journal_t *);

/* Transaction cache support */
extern void jbd2_journal_destroy_transaction_cache(void);
extern int __init jbd2_journal_init_transaction_cache(void);
extern void jbd2_journal_free_transaction(transaction_t *);

/*
 * Journal locking.
 *
 * We need to lock the journal during transaction state changes so that nobody
 * ever tries to take a handle on the running transaction while we are in the
 * middle of moving it to the commit phase.  j_state_lock does this.
 *
 * Note that the locking is completely interrupt unsafe.  We never touch
 * journal structures from interrupts.
 */

static inline handle_t *journal_current_handle(void)
{
	return current->journal_info;
}

/* The journaling code user interface:
 *
 * Create and destroy handles
 * Register buffer modifications against the current transaction.
 */

extern handle_t *jbd2_journal_start(journal_t *, int nblocks);
extern handle_t *jbd2__journal_start(journal_t *, int blocks, int rsv_blocks,
				     gfp_t gfp_mask, unsigned int type,
				     unsigned int line_no);
extern int	 jbd2_journal_restart(handle_t *, int nblocks);
extern int	 jbd2__journal_restart(handle_t *, int nblocks, gfp_t gfp_mask);
extern int	 jbd2_journal_start_reserved(handle_t *handle,
				unsigned int type, unsigned int line_no);
extern void	 jbd2_journal_free_reserved(handle_t *handle);
extern int	 jbd2_journal_extend (handle_t *, int nblocks);
extern int	 jbd2_journal_get_write_access(handle_t *, struct buffer_head *);
extern int	 jbd2_journal_get_create_access (handle_t *, struct buffer_head *);
extern int	 jbd2_journal_get_undo_access(handle_t *, struct buffer_head *);
void		 jbd2_journal_set_triggers(struct buffer_head *,
					   struct jbd2_buffer_trigger_type *type);
extern int	 jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
extern int	 jbd2_journal_forget (handle_t *, struct buffer_head *);
extern int	 jbd2_journal_invalidatepage(journal_t *,
				struct page *, unsigned int, unsigned int);
extern int	 jbd2_journal_try_to_free_buffers(journal_t *, struct page *, gfp_t);
extern int	 jbd2_journal_stop(handle_t *);
extern int	 jbd2_journal_flush (journal_t *);
extern void	 jbd2_journal_lock_updates (journal_t *);
extern void	 jbd2_journal_unlock_updates (journal_t *);

extern journal_t * jbd2_journal_init_dev(struct block_device *bdev,
				struct block_device *fs_dev,
				unsigned long long start, int len, int bsize);
extern journal_t * jbd2_journal_init_inode (struct inode *);
extern int	   jbd2_journal_update_format (journal_t *);
extern int	   jbd2_journal_check_used_features
		   (journal_t *, unsigned long, unsigned long, unsigned long);
extern int	   jbd2_journal_check_available_features
		   (journal_t *, unsigned long, unsigned long, unsigned long);
extern int	   jbd2_journal_set_features
		   (journal_t *, unsigned long, unsigned long, unsigned long);
extern void	   jbd2_journal_clear_features
		   (journal_t *, unsigned long, unsigned long, unsigned long);
extern int	   jbd2_journal_load       (journal_t *journal);
extern int	   jbd2_journal_destroy    (journal_t *);
extern int	   jbd2_journal_recover    (journal_t *journal);
extern int	   jbd2_journal_wipe       (journal_t *, int);
extern int	   jbd2_journal_skip_recovery	(journal_t *);
extern void	   jbd2_journal_update_sb_errno(journal_t *);
extern int	   jbd2_journal_update_sb_log_tail	(journal_t *, tid_t,
				unsigned long, int);
extern void	   jbd2_journal_abort      (journal_t *, int);
extern int	   jbd2_journal_errno      (journal_t *);
extern void	   jbd2_journal_ack_err    (journal_t *);
extern int	   jbd2_journal_clear_err  (journal_t *);
extern int	   jbd2_journal_bmap(journal_t *, unsigned long, unsigned long long *);
extern int	   jbd2_journal_force_commit(journal_t *);
extern int	   jbd2_journal_force_commit_nested(journal_t *);
extern int	   jbd2_journal_inode_ranged_write(handle_t *handle,
			struct jbd2_inode *inode, loff_t start_byte,
			loff_t length);
extern int	   jbd2_journal_inode_ranged_wait(handle_t *handle,
			struct jbd2_inode *inode, loff_t start_byte,
			loff_t length);
extern int	   jbd2_journal_submit_inode_data_buffers(
			struct jbd2_inode *jinode);
extern int	   jbd2_journal_finish_inode_data_buffers(
			struct jbd2_inode *jinode);
extern int	   jbd2_journal_begin_ordered_truncate(journal_t *journal,
				struct jbd2_inode *inode, loff_t new_size);
extern void	   jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
extern void	   jbd2_journal_release_jbd_inode(journal_t *journal, struct jbd2_inode *jinode);

/*
 * journal_head management
 */
struct journal_head *jbd2_journal_add_journal_head(struct buffer_head *bh);
struct journal_head *jbd2_journal_grab_journal_head(struct buffer_head *bh);
void jbd2_journal_put_journal_head(struct journal_head *jh);

/*
 * handle management
 */
extern struct kmem_cache *jbd2_handle_cache;

static inline handle_t *jbd2_alloc_handle(gfp_t gfp_flags)
{
	return kmem_cache_zalloc(jbd2_handle_cache, gfp_flags);
}

static inline void jbd2_free_handle(handle_t *handle)
{
	kmem_cache_free(jbd2_handle_cache, handle);
}

/*
 * jbd2_inode management (optional, for those file systems that want to use
 * dynamically allocated jbd2_inode structures)
 */
extern struct kmem_cache *jbd2_inode_cache;

static inline struct jbd2_inode *jbd2_alloc_inode(gfp_t gfp_flags)
{
	return kmem_cache_alloc(jbd2_inode_cache, gfp_flags);
}

static inline void jbd2_free_inode(struct jbd2_inode *jinode)
{
	kmem_cache_free(jbd2_inode_cache, jinode);
}

/* Primary revoke support */
#define JOURNAL_REVOKE_DEFAULT_HASH 256
extern int	   jbd2_journal_init_revoke(journal_t *, int);
extern void	   jbd2_journal_destroy_revoke_record_cache(void);
extern void	   jbd2_journal_destroy_revoke_table_cache(void);
extern int __init jbd2_journal_init_revoke_record_cache(void);
extern int __init jbd2_journal_init_revoke_table_cache(void);

extern void	   jbd2_journal_destroy_revoke(journal_t *);
extern int	   jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *);
extern int	   jbd2_journal_cancel_revoke(handle_t *, struct journal_head *);
extern void	   jbd2_journal_write_revoke_records(transaction_t *transaction,
						     struct list_head *log_bufs);

/* Recovery revoke support */
extern int	jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t);
extern int	jbd2_journal_test_revoke(journal_t *, unsigned long long, tid_t);
extern void	jbd2_journal_clear_revoke(journal_t *);
extern void	jbd2_journal_switch_revoke_table(journal_t *journal);
extern void	jbd2_clear_buffer_revoked_flags(journal_t *journal);

/*
 * The log thread user interface:
 *
 * Request space in the current transaction, and force transaction commit
 * transitions on demand.
 */

int jbd2_log_start_commit(journal_t *journal, tid_t tid);
int __jbd2_log_start_commit(journal_t *journal, tid_t tid);
int jbd2_journal_start_commit(journal_t *journal, tid_t *tid);
int jbd2_log_wait_commit(journal_t *journal, tid_t tid);
int jbd2_transaction_committed(journal_t *journal, tid_t tid);
int jbd2_complete_transaction(journal_t *journal, tid_t tid);
int jbd2_log_do_checkpoint(journal_t *journal);
int jbd2_trans_will_send_data_barrier(journal_t *journal, tid_t tid);

void __jbd2_log_wait_for_space(journal_t *journal);
extern void __jbd2_journal_drop_transaction(journal_t *, transaction_t *);
extern int jbd2_cleanup_journal_tail(journal_t *);

/*
 * is_journal_abort
 *
 * Simple test wrapper function to test the JBD2_ABORT state flag.  This
 * bit, when set, indicates that we have had a fatal error somewhere,
 * either inside the journaling layer or indicated to us by the client
 * (eg. ext3), and that we and should not commit any further
 * transactions.
 */

static inline int is_journal_aborted(journal_t *journal)
{
	return journal->j_flags & JBD2_ABORT;
}

static inline int is_handle_aborted(handle_t *handle)
{
	if (handle->h_aborted || !handle->h_transaction)
		return 1;
	return is_journal_aborted(handle->h_transaction->t_journal);
}

static inline void jbd2_journal_abort_handle(handle_t *handle)
{
	handle->h_aborted = 1;
}

#endif /* __KERNEL__   */

/* Comparison functions for transaction IDs: perform comparisons using
 * modulo arithmetic so that they work over sequence number wraps. */

static inline int tid_gt(tid_t x, tid_t y)
{
	int difference = (x - y);
	return (difference > 0);
}

static inline int tid_geq(tid_t x, tid_t y)
{
	int difference = (x - y);
	return (difference >= 0);
}

extern int jbd2_journal_blocks_per_page(struct inode *inode);
extern size_t journal_tag_bytes(journal_t *journal);

static inline bool jbd2_journal_has_csum_v2or3_feature(journal_t *j)
{
	return jbd2_has_feature_csum2(j) || jbd2_has_feature_csum3(j);
}

static inline int jbd2_journal_has_csum_v2or3(journal_t *journal)
{
	WARN_ON_ONCE(jbd2_journal_has_csum_v2or3_feature(journal) &&
		     journal->j_chksum_driver == NULL);

return journal->j_chksum_driver != NULL;
}

/*
 * We reserve t_outstanding_credits >> JBD2_CONTROL_BLOCKS_SHIFT for
 * transaction control blocks.
 */
#define JBD2_CONTROL_BLOCKS_SHIFT 5

/*
 * Return the minimum number of blocks which must be free in the journal
 * before a new transaction may be started.  Must be called under j_state_lock.
 */
static inline int jbd2_space_needed(journal_t *journal)
{
	int nblocks = journal->j_max_transaction_buffers;
	return nblocks + (nblocks >> JBD2_CONTROL_BLOCKS_SHIFT);
}

/*
 * Return number of free blocks in the log. Must be called under j_state_lock.
 */
static inline unsigned long jbd2_log_space_left(journal_t *journal)
{
	/* Allow for rounding errors */
	long free = journal->j_free - 32;

if (journal->j_committing_transaction) {
		unsigned long committing = atomic_read(&journal->
			j_committing_transaction->t_outstanding_credits);

/* Transaction + control blocks */
		free -= committing + (committing >> JBD2_CONTROL_BLOCKS_SHIFT);
	}
	return max_t(long, free, 0);
}

/*
 * Definitions which augment the buffer_head layer
 */

/* journaling buffer types */
#define BJ_None		0	/* Not journaled */
#define BJ_Metadata	1	/* Normal journaled metadata */
#define BJ_Forget	2	/* Buffer superseded by this transaction */
#define BJ_Shadow	3	/* Buffer contents being shadowed to the log */
#define BJ_Reserved	4	/* Buffer is reserved for access by journal */
#define BJ_Types	5

extern int jbd_blocks_per_page(struct inode *inode);

/* JBD uses a CRC32 checksum */
#define JBD_MAX_CHECKSUM_SIZE 4

static inline u32 jbd2_chksum(journal_t *journal, u32 crc,
			      const void *address, unsigned int length)
{
	struct {
		struct shash_desc shash;
		char ctx[JBD_MAX_CHECKSUM_SIZE];
	} desc;
	int err;

BUG_ON(crypto_shash_descsize(journal->j_chksum_driver) >
		JBD_MAX_CHECKSUM_SIZE);

desc.shash.tfm = journal->j_chksum_driver;
	*(u32 *)desc.ctx = crc;

err = crypto_shash_update(&desc.shash, address, length);
	BUG_ON(err);

return *(u32 *)desc.ctx;
}

/* Return most recent uncommitted transaction */
static inline tid_t  jbd2_get_latest_transaction(journal_t *journal)
{
	tid_t tid;

read_lock(&journal->j_state_lock);
	tid = journal->j_commit_request;
	if (journal->j_running_transaction)
		tid = journal->j_running_transaction->t_tid;
	read_unlock(&journal->j_state_lock);
	return tid;
}

#ifdef __KERNEL__

#define buffer_trace_init(bh)	do {} while (0)
#define print_buffer_fields(bh)	do {} while (0)
#define print_buffer_trace(bh)	do {} while (0)
#define BUFFER_TRACE(bh, info)	do {} while (0)
#define BUFFER_TRACE2(bh, bh2, info)	do {} while (0)
#define JBUFFER_TRACE(jh, info)	do {} while (0)

#endif	/* __KERNEL__ */

#define EFSBADCRC	EBADMSG		/* Bad CRC detected */
#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */

#endif	/* _LINUX_JBD2_H */

${this.title}

Code Editor : jbd2.h