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usr /
src /
linux-headers-5.15.0-25 /
include /
linux /
[ HOME SHELL ]
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amba
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drwxr-xr-x
atomic
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drwxr-xr-x
avf
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drwxr-xr-x
bcma
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drwxr-xr-x
byteorder
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drwxr-xr-x
can
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drwxr-xr-x
ceph
[ DIR ]
drwxr-xr-x
clk
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drwxr-xr-x
crush
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decompress
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device
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dma
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dsa
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fsl
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gpio
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greybus
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hsi
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i3c
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input
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irqchip
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isdn
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lockd
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mfd
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mlx4
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mmc
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mtd
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mux
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net
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netfilter
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netfilter_arp
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netfilter_bridge
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drwxr-xr-x
netfilter_ipv4
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netfilter_ipv6
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pcs
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perf
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phy
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pinctrl
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platform_data
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power
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qed
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raid
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regulator
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remoteproc
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drwxr-xr-x
reset
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rpmsg
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rtc
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sched
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drwxr-xr-x
soc
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drwxr-xr-x
soundwire
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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
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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
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-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
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-rw-r--r--
dm-bufio.h
4.88
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-rw-r--r--
dm-dirty-log.h
3.94
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-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
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-rw-r--r--
dma-buf-map.h
8.12
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-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
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-rw-r--r--
dma-fence-chain.h
3.07
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-rw-r--r--
dma-fence.h
20.25
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-rw-r--r--
dma-heap.h
1.58
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-rw-r--r--
dma-iommu.h
2.21
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-rw-r--r--
dma-map-ops.h
12.73
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-rw-r--r--
dma-mapping.h
19.81
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-rw-r--r--
dma-resv.h
9.05
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-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
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elevator.h
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elf-fdpic.h
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elf-randomize.h
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elfcore-compat.h
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elfcore.h
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energy_model.h
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errseq.h
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etherdevice.h
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ethtool.h
31.72
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ethtool_netlink.h
1.98
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eventfd.h
2.1
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eventpoll.h
2.4
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evm.h
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export.h
5.24
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exportfs.h
8.25
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ext2_fs.h
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extable.h
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extcon-provider.h
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extcon.h
10.17
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f2fs_fs.h
19
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fanotify.h
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fault-inject-usercopy.h
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fault-inject.h
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fb.h
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fbcon.h
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833
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fileattr.h
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fips.h
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firewire.h
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firmware-map.h
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firmware.h
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fixp-arith.h
4.19
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flat.h
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font.h
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fortify-string.h
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freelist.h
3.8
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freezer.h
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frontswap.h
3.04
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fs.h
120.45
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fs_context.h
8.68
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fs_enet_pd.h
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fs_parser.h
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fs_stack.h
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629
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fsl-diu-fb.h
3.87
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fsl_devices.h
4.16
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fsl_hypervisor.h
2.76
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fsnotify.h
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fsnotify_backend.h
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fsverity.h
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ftrace_irq.h
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gameport.h
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genalloc.h
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generic-radix-tree.h
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genetlink.h
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genhd.h
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genl_magic_func.h
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genl_magic_struct.h
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getcpu.h
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gfp.h
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glob.h
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gnss.h
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goldfish.h
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gpio-pxa.h
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gpio.h
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gpio_keys.h
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greybus.h
4.14
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hardirq.h
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hash.h
3
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hashtable.h
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hdlc.h
3.19
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hdlcdrv.h
6.32
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hdmi.h
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hid-debug.h
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hid-roccat.h
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hidden.h
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hiddev.h
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highmem.h
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highuid.h
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hil_mlc.h
5.13
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hippidevice.h
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hmm.h
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host1x.h
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hp_sdc.h
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hpet.h
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hrtimer_defs.h
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htcpld.h
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huge_mm.h
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hugetlb.h
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hugetlb_cgroup.h
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hugetlb_inline.h
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hw_breakpoint.h
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hw_random.h
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hwmon-sysfs.h
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hwmon-vid.h
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hwmon.h
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hwspinlock.h
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hyperv.h
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hypervisor.h
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i2c-algo-bit.h
1.4
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icmp.h
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icmpv6.h
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idle_inject.h
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idr.h
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ieee80211.h
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ieee802154.h
11.12
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if_arp.h
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if_bridge.h
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if_eql.h
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if_ether.h
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if_fddi.h
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if_hsr.h
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if_ltalk.h
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if_tunnel.h
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if_vlan.h
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igmp.h
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ihex.h
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ima.h
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imx-media.h
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in6.h
1.63
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indirect_call_wrapper.h
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inet.h
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inet_diag.h
2.74
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inetdevice.h
8.87
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init.h
11.39
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init_ohci1394_dma.h
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init_syscalls.h
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init_task.h
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initrd.h
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inotify.h
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input.h
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instrumentation.h
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instrumented.h
3.6
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integrity.h
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intel-iommu.h
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intel-ish-client-if.h
3.97
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intel-svm.h
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intel_rapl.h
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intel_th.h
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interconnect-provider.h
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interconnect.h
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interrupt.h
23.81
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interval_tree.h
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interval_tree_generic.h
6.7
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io-64-nonatomic-lo-hi.h
2.41
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io-mapping.h
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io-pgtable.h
8.39
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io.h
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io_uring.h
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226
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ioam6_genl.h
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ioam6_iptunnel.h
285
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iocontext.h
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iomap.h
11.67
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iommu-helper.h
1.12
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iommu.h
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iopoll.h
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ioport.h
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ioprio.h
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iova.h
6.15
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ip.h
1
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ipack.h
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ipc.h
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ipc_namespace.h
4.98
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ipmi.h
10.88
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ipmi_smi.h
7.98
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ipv6.h
8.67
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ipv6_route.h
372
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irq.h
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irq_poll.h
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irq_sim.h
789
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irq_work.h
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irqbypass.h
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irqchip.h
2.33
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irqdesc.h
7.75
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irqdomain.h
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irqflags.h
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irqhandler.h
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irqnr.h
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irqreturn.h
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isapnp.h
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iscsi_boot_sysfs.h
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iscsi_ibft.h
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iversion.h
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jbd2.h
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jhash.h
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jiffies.h
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journal-head.h
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joystick.h
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jump_label.h
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jump_label_ratelimit.h
2.77
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jz4740-adc.h
1023
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jz4780-nemc.h
976
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kallsyms.h
4.5
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kasan-checks.h
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kasan-tags.h
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kasan.h
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kbd_diacr.h
198
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kbd_kern.h
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kbuild.h
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kconfig.h
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kcore.h
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kcov.h
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1.88
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kdb.h
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kdebug.h
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kdev_t.h
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kern_levels.h
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kernel-page-flags.h
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kernel.h
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kernel_read_file.h
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kernel_stat.h
2.97
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kernelcapi.h
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kernfs.h
18.11
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kexec.h
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key-type.h
6.53
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key.h
15.75
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keyboard.h
665
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keyctl.h
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keyslot-manager.h
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kfence.h
8
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kfifo.h
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kgdb.h
12.05
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khugepaged.h
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klist.h
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kmemleak.h
3.27
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kmsg_dump.h
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kobj_map.h
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kobject.h
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kobject_ns.h
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kprobes.h
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472
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kthread.h
6.9
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ktime.h
5.38
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kvm_dirty_ring.h
2.73
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kvm_host.h
58.09
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kvm_irqfd.h
2
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kvm_para.h
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kvm_types.h
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l2tp.h
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lantiq.h
365
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lapb.h
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latencytop.h
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lcd.h
3.78
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lcm.h
275
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led-class-flash.h
6.74
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led-class-multicolor.h
3.26
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led-lm3530.h
3.7
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leds-bd2802.h
476
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leds-lp3944.h
950
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leds-lp3952.h
2.35
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leds-pca9532.h
866
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leds-regulator.h
1.14
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leds-ti-lmu-common.h
1.12
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leds.h
18.26
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libata.h
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qcom_scm.h
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radix-tree.h
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raid_class.h
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ramfs.h
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random.h
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rcu_segcblist.h
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rcu_sync.h
1.46
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rculist.h
28.56
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rculist_bl.h
3.29
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rculist_nulls.h
6.57
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rcupdate.h
36.33
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rcupdate_trace.h
3.08
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rcupdate_wait.h
1.73
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rcutiny.h
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rcutree.h
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rcuwait.h
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reboot-mode.h
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reboot.h
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reciprocal_div.h
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refcount.h
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regmap.h
62.95
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regset.h
11.35
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relay.h
8.47
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remoteproc.h
24.77
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resctrl.h
6.5
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reset-controller.h
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reset.h
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resource_ext.h
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restart_block.h
1.11
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rfkill.h
10.52
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3.45
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rhashtable.h
37.59
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ring_buffer.h
7.43
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rio.h
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rio_drv.h
14.32
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rio_ids.h
1.08
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rio_regs.h
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rmap.h
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rmi.h
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rodata_test.h
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root_dev.h
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rpmsg.h
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rslib.h
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rtmutex.h
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rtnetlink.h
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rtsx_common.h
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rtsx_pci.h
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rtsx_usb.h
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rwbase_rt.h
876
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rwlock.h
4.55
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rwlock_api_smp.h
7.65
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rwlock_rt.h
2.98
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rwlock_types.h
1.77
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rwsem.h
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s3c_adc_battery.h
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scc.h
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sched.h
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sched_clock.h
1.44
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scmi_protocol.h
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scpi_protocol.h
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screen_info.h
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scs.h
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scx200.h
1.82
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scx200_gpio.h
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sdb.h
4.17
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seccomp.h
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secretmem.h
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securebits.h
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security.h
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sed-opal.h
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seg6.h
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seg6_genl.h
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seg6_local.h
100
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selection.h
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sem.h
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semaphore.h
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seq_buf.h
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seq_file.h
8.75
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seq_file_net.h
730
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seqlock.h
38.18
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seqno-fence.h
3.57
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serdev.h
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serial.h
630
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serial_8250.h
6.57
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serial_bcm63xx.h
4.73
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serial_core.h
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serial_max3100.h
1.19
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serial_s3c.h
9.42
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serial_sci.h
1.6
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serio.h
4.28
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set_memory.h
1.66
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sfp.h
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sh_clk.h
5.96
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sh_dma.h
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sh_eth.h
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shdma-base.h
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shm.h
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shmem_fs.h
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shrinker.h
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signal.h
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signal_types.h
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signalfd.h
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siox.h
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siphash.h
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sizes.h
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skb_array.h
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skbuff.h
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skmsg.h
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slab_def.h
3.02
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slimbus.h
6.93
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slub_def.h
6.22
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sm501-regs.h
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sm501.h
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smc911x.h
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smc91x.h
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smp.h
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smp_types.h
1.35
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smpboot.h
1.68
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smscphy.h
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sock_diag.h
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socket.h
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sockptr.h
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sonet.h
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sony-laptop.h
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sonypi.h
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sort.h
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sound.h
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soundcard.h
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spinlock.h
14.07
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spinlock_api_smp.h
5.47
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spinlock_api_up.h
3.31
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spinlock_rt.h
4.11
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spinlock_types.h
1.78
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spinlock_types_raw.h
1.69
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spinlock_types_up.h
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spinlock_up.h
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splice.h
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spmi.h
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sram.h
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srcu.h
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srcutiny.h
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srcutree.h
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ssbi.h
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stackdepot.h
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stackprotector.h
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statfs.h
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static_call_types.h
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static_key.h
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stddef.h
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stmmac.h
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stmp3xxx_rtc_wdt.h
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stmp_device.h
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stop_machine.h
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string.h
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string_helpers.h
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stringhash.h
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stringify.h
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sungem_phy.h
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sunserialcore.h
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sunxi-rsb.h
2.89
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superhyway.h
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surface_acpi_notify.h
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suspend.h
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svga.h
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swapops.h
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swiotlb.h
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switchtec.h
10.9
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sxgbe_platform.h
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sync_core.h
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sync_file.h
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synclink.h
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sys.h
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sys_soc.h
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syscalls.h
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syscore_ops.h
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sysctl.h
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sysfb.h
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sysfs.h
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sysrq.h
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sysv_fs.h
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t10-pi.h
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task_io_accounting_ops.h
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task_work.h
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taskstats_kern.h
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tboot.h
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tc.h
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tcp.h
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tee_drv.h
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textsearch.h
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textsearch_fsm.h
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tfrc.h
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thermal.h
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thread_info.h
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threads.h
1.28
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thunderbolt.h
20.78
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ti-emif-sram.h
5.15
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ti_wilink_st.h
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tick.h
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tifm.h
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timb_dma.h
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timb_gpio.h
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time.h
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time32.h
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time_namespace.h
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timecounter.h
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timekeeper_internal.h
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timekeeping.h
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timer.h
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timerfd.h
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timeriomem-rng.h
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timerqueue.h
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timex.h
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tnum.h
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topology.h
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torture.h
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toshiba.h
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tpm.h
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tpm_command.h
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tpm_eventlog.h
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trace.h
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trace_clock.h
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trace_seq.h
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tracefs.h
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tracehook.h
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tracepoint-defs.h
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tracepoint.h
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transport_class.h
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ts-nbus.h
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tsacct_kern.h
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tty.h
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tty_buffer.h
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tty_port.h
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typecheck.h
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types.h
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u64_stats_sync.h
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uaccess.h
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ucb1400.h
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ucs2_string.h
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udp.h
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uidgid.h
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uio_driver.h
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unicode.h
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units.h
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uprobes.h
6
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usb.h
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usb_usual.h
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usbdevice_fs.h
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user-return-notifier.h
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user.h
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user_namespace.h
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userfaultfd_k.h
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util_macros.h
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utsname.h
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uuid.h
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vbox_utils.h
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vdpa.h
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verification.h
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vermagic.h
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vfio.h
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vfio_pci_core.h
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vfs.h
116
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vga_switcheroo.h
8.62
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vgaarb.h
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vhost_iotlb.h
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via-core.h
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via.h
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6.7
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virtio_byteorder.h
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virtio_caif.h
513
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virtio_config.h
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virtio_console.h
1.93
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virtio_dma_buf.h
1.12
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virtio_net.h
5.38
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virtio_pci_modern.h
3.25
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virtio_ring.h
2.95
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virtio_vsock.h
4.79
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visorbus.h
12.23
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vlynq.h
3.22
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vm_event_item.h
3.46
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vmacache.h
722
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vmalloc.h
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vme.h
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vmpressure.h
1.68
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vmstat.h
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vmw_vmci_api.h
2.88
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vmw_vmci_defs.h
27.5
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vringh.h
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vt.h
611
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vt_buffer.h
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vt_kern.h
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vtime.h
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w1-gpio.h
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w1.h
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wait.h
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wait_bit.h
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watch_queue.h
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watchdog.h
8.21
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win_minmax.h
832
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wireless.h
1.4
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wkup_m3_ipc.h
1.75
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wl12xx.h
810
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wm97xx.h
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wmi.h
1.56
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Code Editor : memcontrol.h
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* memcontrol.h - Memory Controller * * Copyright IBM Corporation, 2007 * Author Balbir Singh <balbir@linux.vnet.ibm.com> * * Copyright 2007 OpenVZ SWsoft Inc * Author: Pavel Emelianov <xemul@openvz.org> */ #ifndef _LINUX_MEMCONTROL_H #define _LINUX_MEMCONTROL_H #include <linux/cgroup.h> #include <linux/vm_event_item.h> #include <linux/hardirq.h> #include <linux/jump_label.h> #include <linux/page_counter.h> #include <linux/vmpressure.h> #include <linux/eventfd.h> #include <linux/mm.h> #include <linux/vmstat.h> #include <linux/writeback.h> #include <linux/page-flags.h> struct mem_cgroup; struct obj_cgroup; struct page; struct mm_struct; struct kmem_cache; /* Cgroup-specific page state, on top of universal node page state */ enum memcg_stat_item { MEMCG_SWAP = NR_VM_NODE_STAT_ITEMS, MEMCG_SOCK, MEMCG_PERCPU_B, MEMCG_NR_STAT, }; enum memcg_memory_event { MEMCG_LOW, MEMCG_HIGH, MEMCG_MAX, MEMCG_OOM, MEMCG_OOM_KILL, MEMCG_SWAP_HIGH, MEMCG_SWAP_MAX, MEMCG_SWAP_FAIL, MEMCG_NR_MEMORY_EVENTS, }; struct mem_cgroup_reclaim_cookie { pg_data_t *pgdat; unsigned int generation; }; #ifdef CONFIG_MEMCG #define MEM_CGROUP_ID_SHIFT 16 #define MEM_CGROUP_ID_MAX USHRT_MAX struct mem_cgroup_id { int id; refcount_t ref; }; /* * Per memcg event counter is incremented at every pagein/pageout. With THP, * it will be incremented by the number of pages. This counter is used * to trigger some periodic events. This is straightforward and better * than using jiffies etc. to handle periodic memcg event. */ enum mem_cgroup_events_target { MEM_CGROUP_TARGET_THRESH, MEM_CGROUP_TARGET_SOFTLIMIT, MEM_CGROUP_NTARGETS, }; struct memcg_vmstats_percpu { /* Local (CPU and cgroup) page state & events */ long state[MEMCG_NR_STAT]; unsigned long events[NR_VM_EVENT_ITEMS]; /* Delta calculation for lockless upward propagation */ long state_prev[MEMCG_NR_STAT]; unsigned long events_prev[NR_VM_EVENT_ITEMS]; /* Cgroup1: threshold notifications & softlimit tree updates */ unsigned long nr_page_events; unsigned long targets[MEM_CGROUP_NTARGETS]; }; struct memcg_vmstats { /* Aggregated (CPU and subtree) page state & events */ long state[MEMCG_NR_STAT]; unsigned long events[NR_VM_EVENT_ITEMS]; /* Pending child counts during tree propagation */ long state_pending[MEMCG_NR_STAT]; unsigned long events_pending[NR_VM_EVENT_ITEMS]; }; struct mem_cgroup_reclaim_iter { struct mem_cgroup *position; /* scan generation, increased every round-trip */ unsigned int generation; }; /* * Bitmap and deferred work of shrinker::id corresponding to memcg-aware * shrinkers, which have elements charged to this memcg. */ struct shrinker_info { struct rcu_head rcu; atomic_long_t *nr_deferred; unsigned long *map; }; struct lruvec_stats_percpu { /* Local (CPU and cgroup) state */ long state[NR_VM_NODE_STAT_ITEMS]; /* Delta calculation for lockless upward propagation */ long state_prev[NR_VM_NODE_STAT_ITEMS]; }; struct lruvec_stats { /* Aggregated (CPU and subtree) state */ long state[NR_VM_NODE_STAT_ITEMS]; /* Pending child counts during tree propagation */ long state_pending[NR_VM_NODE_STAT_ITEMS]; }; /* * per-node information in memory controller. */ struct mem_cgroup_per_node { struct lruvec lruvec; struct lruvec_stats_percpu __percpu *lruvec_stats_percpu; struct lruvec_stats lruvec_stats; unsigned long lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS]; struct mem_cgroup_reclaim_iter iter; struct shrinker_info __rcu *shrinker_info; struct rb_node tree_node; /* RB tree node */ unsigned long usage_in_excess;/* Set to the value by which */ /* the soft limit is exceeded*/ bool on_tree; struct mem_cgroup *memcg; /* Back pointer, we cannot */ /* use container_of */ }; struct mem_cgroup_threshold { struct eventfd_ctx *eventfd; unsigned long threshold; }; /* For threshold */ struct mem_cgroup_threshold_ary { /* An array index points to threshold just below or equal to usage. */ int current_threshold; /* Size of entries[] */ unsigned int size; /* Array of thresholds */ struct mem_cgroup_threshold entries[]; }; struct mem_cgroup_thresholds { /* Primary thresholds array */ struct mem_cgroup_threshold_ary *primary; /* * Spare threshold array. * This is needed to make mem_cgroup_unregister_event() "never fail". * It must be able to store at least primary->size - 1 entries. */ struct mem_cgroup_threshold_ary *spare; }; enum memcg_kmem_state { KMEM_NONE, KMEM_ALLOCATED, KMEM_ONLINE, }; #if defined(CONFIG_SMP) struct memcg_padding { char x[0]; } ____cacheline_internodealigned_in_smp; #define MEMCG_PADDING(name) struct memcg_padding name #else #define MEMCG_PADDING(name) #endif /* * Remember four most recent foreign writebacks with dirty pages in this * cgroup. Inode sharing is expected to be uncommon and, even if we miss * one in a given round, we're likely to catch it later if it keeps * foreign-dirtying, so a fairly low count should be enough. * * See mem_cgroup_track_foreign_dirty_slowpath() for details. */ #define MEMCG_CGWB_FRN_CNT 4 struct memcg_cgwb_frn { u64 bdi_id; /* bdi->id of the foreign inode */ int memcg_id; /* memcg->css.id of foreign inode */ u64 at; /* jiffies_64 at the time of dirtying */ struct wb_completion done; /* tracks in-flight foreign writebacks */ }; /* * Bucket for arbitrarily byte-sized objects charged to a memory * cgroup. The bucket can be reparented in one piece when the cgroup * is destroyed, without having to round up the individual references * of all live memory objects in the wild. */ struct obj_cgroup { struct percpu_ref refcnt; struct mem_cgroup *memcg; atomic_t nr_charged_bytes; union { struct list_head list; /* protected by objcg_lock */ struct rcu_head rcu; }; }; /* * The memory controller data structure. The memory controller controls both * page cache and RSS per cgroup. We would eventually like to provide * statistics based on the statistics developed by Rik Van Riel for clock-pro, * to help the administrator determine what knobs to tune. */ struct mem_cgroup { struct cgroup_subsys_state css; /* Private memcg ID. Used to ID objects that outlive the cgroup */ struct mem_cgroup_id id; /* Accounted resources */ struct page_counter memory; /* Both v1 & v2 */ union { struct page_counter swap; /* v2 only */ struct page_counter memsw; /* v1 only */ }; /* Legacy consumer-oriented counters */ struct page_counter kmem; /* v1 only */ struct page_counter tcpmem; /* v1 only */ /* Range enforcement for interrupt charges */ struct work_struct high_work; unsigned long soft_limit; /* vmpressure notifications */ struct vmpressure vmpressure; /* * Should the OOM killer kill all belonging tasks, had it kill one? */ bool oom_group; /* protected by memcg_oom_lock */ bool oom_lock; int under_oom; int swappiness; /* OOM-Killer disable */ int oom_kill_disable; /* memory.events and memory.events.local */ struct cgroup_file events_file; struct cgroup_file events_local_file; /* handle for "memory.swap.events" */ struct cgroup_file swap_events_file; /* protect arrays of thresholds */ struct mutex thresholds_lock; /* thresholds for memory usage. RCU-protected */ struct mem_cgroup_thresholds thresholds; /* thresholds for mem+swap usage. RCU-protected */ struct mem_cgroup_thresholds memsw_thresholds; /* For oom notifier event fd */ struct list_head oom_notify; /* * Should we move charges of a task when a task is moved into this * mem_cgroup ? And what type of charges should we move ? */ unsigned long move_charge_at_immigrate; /* taken only while moving_account > 0 */ spinlock_t move_lock; unsigned long move_lock_flags; MEMCG_PADDING(_pad1_); /* memory.stat */ struct memcg_vmstats vmstats; /* memory.events */ atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; atomic_long_t memory_events_local[MEMCG_NR_MEMORY_EVENTS]; unsigned long socket_pressure; /* Legacy tcp memory accounting */ bool tcpmem_active; int tcpmem_pressure; #ifdef CONFIG_MEMCG_KMEM int kmemcg_id; enum memcg_kmem_state kmem_state; struct obj_cgroup __rcu *objcg; /* list of inherited objcgs, protected by objcg_lock */ struct list_head objcg_list; #endif MEMCG_PADDING(_pad2_); /* * set > 0 if pages under this cgroup are moving to other cgroup. */ atomic_t moving_account; struct task_struct *move_lock_task; struct memcg_vmstats_percpu __percpu *vmstats_percpu; #ifdef CONFIG_CGROUP_WRITEBACK struct list_head cgwb_list; struct wb_domain cgwb_domain; struct memcg_cgwb_frn cgwb_frn[MEMCG_CGWB_FRN_CNT]; #endif /* List of events which userspace want to receive */ struct list_head event_list; spinlock_t event_list_lock; #ifdef CONFIG_TRANSPARENT_HUGEPAGE struct deferred_split deferred_split_queue; #endif struct mem_cgroup_per_node *nodeinfo[]; }; /* * size of first charge trial. "32" comes from vmscan.c's magic value. * TODO: maybe necessary to use big numbers in big irons. */ #define MEMCG_CHARGE_BATCH 32U extern struct mem_cgroup *root_mem_cgroup; enum page_memcg_data_flags { /* page->memcg_data is a pointer to an objcgs vector */ MEMCG_DATA_OBJCGS = (1UL << 0), /* page has been accounted as a non-slab kernel page */ MEMCG_DATA_KMEM = (1UL << 1), /* the next bit after the last actual flag */ __NR_MEMCG_DATA_FLAGS = (1UL << 2), }; #define MEMCG_DATA_FLAGS_MASK (__NR_MEMCG_DATA_FLAGS - 1) static inline bool PageMemcgKmem(struct page *page); /* * After the initialization objcg->memcg is always pointing at * a valid memcg, but can be atomically swapped to the parent memcg. * * The caller must ensure that the returned memcg won't be released: * e.g. acquire the rcu_read_lock or css_set_lock. */ static inline struct mem_cgroup *obj_cgroup_memcg(struct obj_cgroup *objcg) { return READ_ONCE(objcg->memcg); } /* * __page_memcg - get the memory cgroup associated with a non-kmem page * @page: a pointer to the page struct * * Returns a pointer to the memory cgroup associated with the page, * or NULL. This function assumes that the page is known to have a * proper memory cgroup pointer. It's not safe to call this function * against some type of pages, e.g. slab pages or ex-slab pages or * kmem pages. */ static inline struct mem_cgroup *__page_memcg(struct page *page) { unsigned long memcg_data = page->memcg_data; VM_BUG_ON_PAGE(PageSlab(page), page); VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_OBJCGS, page); VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page); return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } /* * __page_objcg - get the object cgroup associated with a kmem page * @page: a pointer to the page struct * * Returns a pointer to the object cgroup associated with the page, * or NULL. This function assumes that the page is known to have a * proper object cgroup pointer. It's not safe to call this function * against some type of pages, e.g. slab pages or ex-slab pages or * LRU pages. */ static inline struct obj_cgroup *__page_objcg(struct page *page) { unsigned long memcg_data = page->memcg_data; VM_BUG_ON_PAGE(PageSlab(page), page); VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_OBJCGS, page); VM_BUG_ON_PAGE(!(memcg_data & MEMCG_DATA_KMEM), page); return (struct obj_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } /* * page_memcg - get the memory cgroup associated with a page * @page: a pointer to the page struct * * Returns a pointer to the memory cgroup associated with the page, * or NULL. This function assumes that the page is known to have a * proper memory cgroup pointer. It's not safe to call this function * against some type of pages, e.g. slab pages or ex-slab pages. * * For a non-kmem page any of the following ensures page and memcg binding * stability: * * - the page lock * - LRU isolation * - lock_page_memcg() * - exclusive reference * * For a kmem page a caller should hold an rcu read lock to protect memcg * associated with a kmem page from being released. */ static inline struct mem_cgroup *page_memcg(struct page *page) { if (PageMemcgKmem(page)) return obj_cgroup_memcg(__page_objcg(page)); else return __page_memcg(page); } /* * page_memcg_rcu - locklessly get the memory cgroup associated with a page * @page: a pointer to the page struct * * Returns a pointer to the memory cgroup associated with the page, * or NULL. This function assumes that the page is known to have a * proper memory cgroup pointer. It's not safe to call this function * against some type of pages, e.g. slab pages or ex-slab pages. */ static inline struct mem_cgroup *page_memcg_rcu(struct page *page) { unsigned long memcg_data = READ_ONCE(page->memcg_data); VM_BUG_ON_PAGE(PageSlab(page), page); WARN_ON_ONCE(!rcu_read_lock_held()); if (memcg_data & MEMCG_DATA_KMEM) { struct obj_cgroup *objcg; objcg = (void *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); return obj_cgroup_memcg(objcg); } return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } /* * page_memcg_check - get the memory cgroup associated with a page * @page: a pointer to the page struct * * Returns a pointer to the memory cgroup associated with the page, * or NULL. This function unlike page_memcg() can take any page * as an argument. It has to be used in cases when it's not known if a page * has an associated memory cgroup pointer or an object cgroups vector or * an object cgroup. * * For a non-kmem page any of the following ensures page and memcg binding * stability: * * - the page lock * - LRU isolation * - lock_page_memcg() * - exclusive reference * * For a kmem page a caller should hold an rcu read lock to protect memcg * associated with a kmem page from being released. */ static inline struct mem_cgroup *page_memcg_check(struct page *page) { /* * Because page->memcg_data might be changed asynchronously * for slab pages, READ_ONCE() should be used here. */ unsigned long memcg_data = READ_ONCE(page->memcg_data); if (memcg_data & MEMCG_DATA_OBJCGS) return NULL; if (memcg_data & MEMCG_DATA_KMEM) { struct obj_cgroup *objcg; objcg = (void *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); return obj_cgroup_memcg(objcg); } return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } #ifdef CONFIG_MEMCG_KMEM /* * PageMemcgKmem - check if the page has MemcgKmem flag set * @page: a pointer to the page struct * * Checks if the page has MemcgKmem flag set. The caller must ensure that * the page has an associated memory cgroup. It's not safe to call this function * against some types of pages, e.g. slab pages. */ static inline bool PageMemcgKmem(struct page *page) { VM_BUG_ON_PAGE(page->memcg_data & MEMCG_DATA_OBJCGS, page); return page->memcg_data & MEMCG_DATA_KMEM; } /* * page_objcgs - get the object cgroups vector associated with a page * @page: a pointer to the page struct * * Returns a pointer to the object cgroups vector associated with the page, * or NULL. This function assumes that the page is known to have an * associated object cgroups vector. It's not safe to call this function * against pages, which might have an associated memory cgroup: e.g. * kernel stack pages. */ static inline struct obj_cgroup **page_objcgs(struct page *page) { unsigned long memcg_data = READ_ONCE(page->memcg_data); VM_BUG_ON_PAGE(memcg_data && !(memcg_data & MEMCG_DATA_OBJCGS), page); VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page); return (struct obj_cgroup **)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } /* * page_objcgs_check - get the object cgroups vector associated with a page * @page: a pointer to the page struct * * Returns a pointer to the object cgroups vector associated with the page, * or NULL. This function is safe to use if the page can be directly associated * with a memory cgroup. */ static inline struct obj_cgroup **page_objcgs_check(struct page *page) { unsigned long memcg_data = READ_ONCE(page->memcg_data); if (!memcg_data || !(memcg_data & MEMCG_DATA_OBJCGS)) return NULL; VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page); return (struct obj_cgroup **)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); } #else static inline bool PageMemcgKmem(struct page *page) { return false; } static inline struct obj_cgroup **page_objcgs(struct page *page) { return NULL; } static inline struct obj_cgroup **page_objcgs_check(struct page *page) { return NULL; } #endif static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg) { return (memcg == root_mem_cgroup); } static inline bool mem_cgroup_disabled(void) { return !cgroup_subsys_enabled(memory_cgrp_subsys); } static inline void mem_cgroup_protection(struct mem_cgroup *root, struct mem_cgroup *memcg, unsigned long *min, unsigned long *low) { *min = *low = 0; if (mem_cgroup_disabled()) return; /* * There is no reclaim protection applied to a targeted reclaim. * We are special casing this specific case here because * mem_cgroup_protected calculation is not robust enough to keep * the protection invariant for calculated effective values for * parallel reclaimers with different reclaim target. This is * especially a problem for tail memcgs (as they have pages on LRU) * which would want to have effective values 0 for targeted reclaim * but a different value for external reclaim. * * Example * Let's have global and A's reclaim in parallel: * | * A (low=2G, usage = 3G, max = 3G, children_low_usage = 1.5G) * |\ * | C (low = 1G, usage = 2.5G) * B (low = 1G, usage = 0.5G) * * For the global reclaim * A.elow = A.low * B.elow = min(B.usage, B.low) because children_low_usage <= A.elow * C.elow = min(C.usage, C.low) * * With the effective values resetting we have A reclaim * A.elow = 0 * B.elow = B.low * C.elow = C.low * * If the global reclaim races with A's reclaim then * B.elow = C.elow = 0 because children_low_usage > A.elow) * is possible and reclaiming B would be violating the protection. * */ if (root == memcg) return; *min = READ_ONCE(memcg->memory.emin); *low = READ_ONCE(memcg->memory.elow); } void mem_cgroup_calculate_protection(struct mem_cgroup *root, struct mem_cgroup *memcg); static inline bool mem_cgroup_supports_protection(struct mem_cgroup *memcg) { /* * The root memcg doesn't account charges, and doesn't support * protection. */ return !mem_cgroup_disabled() && !mem_cgroup_is_root(memcg); } static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg) { if (!mem_cgroup_supports_protection(memcg)) return false; return READ_ONCE(memcg->memory.elow) >= page_counter_read(&memcg->memory); } static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg) { if (!mem_cgroup_supports_protection(memcg)) return false; return READ_ONCE(memcg->memory.emin) >= page_counter_read(&memcg->memory); } int __mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { if (mem_cgroup_disabled()) return 0; return __mem_cgroup_charge(page, mm, gfp_mask); } int mem_cgroup_swapin_charge_page(struct page *page, struct mm_struct *mm, gfp_t gfp, swp_entry_t entry); void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry); void __mem_cgroup_uncharge(struct page *page); static inline void mem_cgroup_uncharge(struct page *page) { if (mem_cgroup_disabled()) return; __mem_cgroup_uncharge(page); } void __mem_cgroup_uncharge_list(struct list_head *page_list); static inline void mem_cgroup_uncharge_list(struct list_head *page_list) { if (mem_cgroup_disabled()) return; __mem_cgroup_uncharge_list(page_list); } void mem_cgroup_migrate(struct page *oldpage, struct page *newpage); /** * mem_cgroup_lruvec - get the lru list vector for a memcg & node * @memcg: memcg of the wanted lruvec * @pgdat: pglist_data * * Returns the lru list vector holding pages for a given @memcg & * @pgdat combination. This can be the node lruvec, if the memory * controller is disabled. */ static inline struct lruvec *mem_cgroup_lruvec(struct mem_cgroup *memcg, struct pglist_data *pgdat) { struct mem_cgroup_per_node *mz; struct lruvec *lruvec; if (mem_cgroup_disabled()) { lruvec = &pgdat->__lruvec; goto out; } if (!memcg) memcg = root_mem_cgroup; mz = memcg->nodeinfo[pgdat->node_id]; lruvec = &mz->lruvec; out: /* * Since a node can be onlined after the mem_cgroup was created, * we have to be prepared to initialize lruvec->pgdat here; * and if offlined then reonlined, we need to reinitialize it. */ if (unlikely(lruvec->pgdat != pgdat)) lruvec->pgdat = pgdat; return lruvec; } /** * mem_cgroup_page_lruvec - return lruvec for isolating/putting an LRU page * @page: the page * * This function relies on page->mem_cgroup being stable. */ static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page) { pg_data_t *pgdat = page_pgdat(page); struct mem_cgroup *memcg = page_memcg(page); VM_WARN_ON_ONCE_PAGE(!memcg && !mem_cgroup_disabled(), page); return mem_cgroup_lruvec(memcg, pgdat); } struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p); struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm); struct lruvec *lock_page_lruvec(struct page *page); struct lruvec *lock_page_lruvec_irq(struct page *page); struct lruvec *lock_page_lruvec_irqsave(struct page *page, unsigned long *flags); #ifdef CONFIG_DEBUG_VM void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page); #else static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page) { } #endif static inline struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css){ return css ? container_of(css, struct mem_cgroup, css) : NULL; } static inline bool obj_cgroup_tryget(struct obj_cgroup *objcg) { return percpu_ref_tryget(&objcg->refcnt); } static inline void obj_cgroup_get(struct obj_cgroup *objcg) { percpu_ref_get(&objcg->refcnt); } static inline void obj_cgroup_get_many(struct obj_cgroup *objcg, unsigned long nr) { percpu_ref_get_many(&objcg->refcnt, nr); } static inline void obj_cgroup_put(struct obj_cgroup *objcg) { percpu_ref_put(&objcg->refcnt); } static inline void mem_cgroup_put(struct mem_cgroup *memcg) { if (memcg) css_put(&memcg->css); } #define mem_cgroup_from_counter(counter, member) \ container_of(counter, struct mem_cgroup, member) struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *, struct mem_cgroup *, struct mem_cgroup_reclaim_cookie *); void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *); int mem_cgroup_scan_tasks(struct mem_cgroup *, int (*)(struct task_struct *, void *), void *); static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg) { if (mem_cgroup_disabled()) return 0; return memcg->id.id; } struct mem_cgroup *mem_cgroup_from_id(unsigned short id); static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m) { return mem_cgroup_from_css(seq_css(m)); } static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec) { struct mem_cgroup_per_node *mz; if (mem_cgroup_disabled()) return NULL; mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); return mz->memcg; } /** * parent_mem_cgroup - find the accounting parent of a memcg * @memcg: memcg whose parent to find * * Returns the parent memcg, or NULL if this is the root or the memory * controller is in legacy no-hierarchy mode. */ static inline struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg) { if (!memcg->memory.parent) return NULL; return mem_cgroup_from_counter(memcg->memory.parent, memory); } static inline bool mem_cgroup_is_descendant(struct mem_cgroup *memcg, struct mem_cgroup *root) { if (root == memcg) return true; return cgroup_is_descendant(memcg->css.cgroup, root->css.cgroup); } static inline bool mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *memcg) { struct mem_cgroup *task_memcg; bool match = false; rcu_read_lock(); task_memcg = mem_cgroup_from_task(rcu_dereference(mm->owner)); if (task_memcg) match = mem_cgroup_is_descendant(task_memcg, memcg); rcu_read_unlock(); return match; } struct cgroup_subsys_state *mem_cgroup_css_from_page(struct page *page); ino_t page_cgroup_ino(struct page *page); static inline bool mem_cgroup_online(struct mem_cgroup *memcg) { if (mem_cgroup_disabled()) return true; return !!(memcg->css.flags & CSS_ONLINE); } void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru, int zid, int nr_pages); static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) { struct mem_cgroup_per_node *mz; mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); return READ_ONCE(mz->lru_zone_size[zone_idx][lru]); } void mem_cgroup_handle_over_high(void); unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg); unsigned long mem_cgroup_size(struct mem_cgroup *memcg); void mem_cgroup_print_oom_context(struct mem_cgroup *memcg, struct task_struct *p); void mem_cgroup_print_oom_meminfo(struct mem_cgroup *memcg); static inline void mem_cgroup_enter_user_fault(void) { WARN_ON(current->in_user_fault); current->in_user_fault = 1; } static inline void mem_cgroup_exit_user_fault(void) { WARN_ON(!current->in_user_fault); current->in_user_fault = 0; } static inline bool task_in_memcg_oom(struct task_struct *p) { return p->memcg_in_oom; } bool mem_cgroup_oom_synchronize(bool wait); struct mem_cgroup *mem_cgroup_get_oom_group(struct task_struct *victim, struct mem_cgroup *oom_domain); void mem_cgroup_print_oom_group(struct mem_cgroup *memcg); #ifdef CONFIG_MEMCG_SWAP extern bool cgroup_memory_noswap; #endif void lock_page_memcg(struct page *page); void unlock_page_memcg(struct page *page); void __mod_memcg_state(struct mem_cgroup *memcg, int idx, int val); /* idx can be of type enum memcg_stat_item or node_stat_item */ static inline void mod_memcg_state(struct mem_cgroup *memcg, int idx, int val) { unsigned long flags; local_irq_save(flags); __mod_memcg_state(memcg, idx, val); local_irq_restore(flags); } static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) { return READ_ONCE(memcg->vmstats.state[idx]); } static inline unsigned long lruvec_page_state(struct lruvec *lruvec, enum node_stat_item idx) { struct mem_cgroup_per_node *pn; if (mem_cgroup_disabled()) return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); return READ_ONCE(pn->lruvec_stats.state[idx]); } static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { struct mem_cgroup_per_node *pn; long x = 0; int cpu; if (mem_cgroup_disabled()) return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); for_each_possible_cpu(cpu) x += per_cpu(pn->lruvec_stats_percpu->state[idx], cpu); #ifdef CONFIG_SMP if (x < 0) x = 0; #endif return x; } void mem_cgroup_flush_stats(void); void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val); static inline void mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val) { unsigned long flags; local_irq_save(flags); __mod_lruvec_kmem_state(p, idx, val); local_irq_restore(flags); } static inline void mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) { unsigned long flags; local_irq_save(flags); __mod_memcg_lruvec_state(lruvec, idx, val); local_irq_restore(flags); } void __count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, unsigned long count); static inline void count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, unsigned long count) { unsigned long flags; local_irq_save(flags); __count_memcg_events(memcg, idx, count); local_irq_restore(flags); } static inline void count_memcg_page_event(struct page *page, enum vm_event_item idx) { struct mem_cgroup *memcg = page_memcg(page); if (memcg) count_memcg_events(memcg, idx, 1); } static inline void count_memcg_event_mm(struct mm_struct *mm, enum vm_event_item idx) { struct mem_cgroup *memcg; if (mem_cgroup_disabled()) return; rcu_read_lock(); memcg = mem_cgroup_from_task(rcu_dereference(mm->owner)); if (likely(memcg)) count_memcg_events(memcg, idx, 1); rcu_read_unlock(); } static inline void memcg_memory_event(struct mem_cgroup *memcg, enum memcg_memory_event event) { bool swap_event = event == MEMCG_SWAP_HIGH || event == MEMCG_SWAP_MAX || event == MEMCG_SWAP_FAIL; atomic_long_inc(&memcg->memory_events_local[event]); if (!swap_event) cgroup_file_notify(&memcg->events_local_file); do { atomic_long_inc(&memcg->memory_events[event]); if (swap_event) cgroup_file_notify(&memcg->swap_events_file); else cgroup_file_notify(&memcg->events_file); if (!cgroup_subsys_on_dfl(memory_cgrp_subsys)) break; if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS) break; } while ((memcg = parent_mem_cgroup(memcg)) && !mem_cgroup_is_root(memcg)); } static inline void memcg_memory_event_mm(struct mm_struct *mm, enum memcg_memory_event event) { struct mem_cgroup *memcg; if (mem_cgroup_disabled()) return; rcu_read_lock(); memcg = mem_cgroup_from_task(rcu_dereference(mm->owner)); if (likely(memcg)) memcg_memory_event(memcg, event); rcu_read_unlock(); } void split_page_memcg(struct page *head, unsigned int nr); unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned); #else /* CONFIG_MEMCG */ #define MEM_CGROUP_ID_SHIFT 0 #define MEM_CGROUP_ID_MAX 0 static inline struct mem_cgroup *page_memcg(struct page *page) { return NULL; } static inline struct mem_cgroup *page_memcg_rcu(struct page *page) { WARN_ON_ONCE(!rcu_read_lock_held()); return NULL; } static inline struct mem_cgroup *page_memcg_check(struct page *page) { return NULL; } static inline bool PageMemcgKmem(struct page *page) { return false; } static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg) { return true; } static inline bool mem_cgroup_disabled(void) { return true; } static inline void memcg_memory_event(struct mem_cgroup *memcg, enum memcg_memory_event event) { } static inline void memcg_memory_event_mm(struct mm_struct *mm, enum memcg_memory_event event) { } static inline void mem_cgroup_protection(struct mem_cgroup *root, struct mem_cgroup *memcg, unsigned long *min, unsigned long *low) { *min = *low = 0; } static inline void mem_cgroup_calculate_protection(struct mem_cgroup *root, struct mem_cgroup *memcg) { } static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg) { return false; } static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg) { return false; } static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { return 0; } static inline int mem_cgroup_swapin_charge_page(struct page *page, struct mm_struct *mm, gfp_t gfp, swp_entry_t entry) { return 0; } static inline void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry) { } static inline void mem_cgroup_uncharge(struct page *page) { } static inline void mem_cgroup_uncharge_list(struct list_head *page_list) { } static inline void mem_cgroup_migrate(struct page *old, struct page *new) { } static inline struct lruvec *mem_cgroup_lruvec(struct mem_cgroup *memcg, struct pglist_data *pgdat) { return &pgdat->__lruvec; } static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page) { pg_data_t *pgdat = page_pgdat(page); return &pgdat->__lruvec; } static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page) { } static inline struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg) { return NULL; } static inline bool mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *memcg) { return true; } static inline struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm) { return NULL; } static inline struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css) { return NULL; } static inline void mem_cgroup_put(struct mem_cgroup *memcg) { } static inline struct lruvec *lock_page_lruvec(struct page *page) { struct pglist_data *pgdat = page_pgdat(page); spin_lock(&pgdat->__lruvec.lru_lock); return &pgdat->__lruvec; } static inline struct lruvec *lock_page_lruvec_irq(struct page *page) { struct pglist_data *pgdat = page_pgdat(page); spin_lock_irq(&pgdat->__lruvec.lru_lock); return &pgdat->__lruvec; } static inline struct lruvec *lock_page_lruvec_irqsave(struct page *page, unsigned long *flagsp) { struct pglist_data *pgdat = page_pgdat(page); spin_lock_irqsave(&pgdat->__lruvec.lru_lock, *flagsp); return &pgdat->__lruvec; } static inline struct mem_cgroup * mem_cgroup_iter(struct mem_cgroup *root, struct mem_cgroup *prev, struct mem_cgroup_reclaim_cookie *reclaim) { return NULL; } static inline void mem_cgroup_iter_break(struct mem_cgroup *root, struct mem_cgroup *prev) { } static inline int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, int (*fn)(struct task_struct *, void *), void *arg) { return 0; } static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg) { return 0; } static inline struct mem_cgroup *mem_cgroup_from_id(unsigned short id) { WARN_ON_ONCE(id); /* XXX: This should always return root_mem_cgroup */ return NULL; } static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m) { return NULL; } static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec) { return NULL; } static inline bool mem_cgroup_online(struct mem_cgroup *memcg) { return true; } static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) { return 0; } static inline unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg) { return 0; } static inline unsigned long mem_cgroup_size(struct mem_cgroup *memcg) { return 0; } static inline void mem_cgroup_print_oom_context(struct mem_cgroup *memcg, struct task_struct *p) { } static inline void mem_cgroup_print_oom_meminfo(struct mem_cgroup *memcg) { } static inline void lock_page_memcg(struct page *page) { } static inline void unlock_page_memcg(struct page *page) { } static inline void mem_cgroup_handle_over_high(void) { } static inline void mem_cgroup_enter_user_fault(void) { } static inline void mem_cgroup_exit_user_fault(void) { } static inline bool task_in_memcg_oom(struct task_struct *p) { return false; } static inline bool mem_cgroup_oom_synchronize(bool wait) { return false; } static inline struct mem_cgroup *mem_cgroup_get_oom_group( struct task_struct *victim, struct mem_cgroup *oom_domain) { return NULL; } static inline void mem_cgroup_print_oom_group(struct mem_cgroup *memcg) { } static inline void __mod_memcg_state(struct mem_cgroup *memcg, int idx, int nr) { } static inline void mod_memcg_state(struct mem_cgroup *memcg, int idx, int nr) { } static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) { return 0; } static inline unsigned long lruvec_page_state(struct lruvec *lruvec, enum node_stat_item idx) { return node_page_state(lruvec_pgdat(lruvec), idx); } static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { return node_page_state(lruvec_pgdat(lruvec), idx); } static inline void mem_cgroup_flush_stats(void) { } static inline void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) { } static inline void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val) { struct page *page = virt_to_head_page(p); __mod_node_page_state(page_pgdat(page), idx, val); } static inline void mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val) { struct page *page = virt_to_head_page(p); mod_node_page_state(page_pgdat(page), idx, val); } static inline void count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, unsigned long count) { } static inline void __count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, unsigned long count) { } static inline void count_memcg_page_event(struct page *page, int idx) { } static inline void count_memcg_event_mm(struct mm_struct *mm, enum vm_event_item idx) { } static inline void split_page_memcg(struct page *head, unsigned int nr) { } static inline unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned) { return 0; } #endif /* CONFIG_MEMCG */ static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx) { __mod_lruvec_kmem_state(p, idx, 1); } static inline void __dec_lruvec_kmem_state(void *p, enum node_stat_item idx) { __mod_lruvec_kmem_state(p, idx, -1); } static inline struct lruvec *parent_lruvec(struct lruvec *lruvec) { struct mem_cgroup *memcg; memcg = lruvec_memcg(lruvec); if (!memcg) return NULL; memcg = parent_mem_cgroup(memcg); if (!memcg) return NULL; return mem_cgroup_lruvec(memcg, lruvec_pgdat(lruvec)); } static inline void unlock_page_lruvec(struct lruvec *lruvec) { spin_unlock(&lruvec->lru_lock); } static inline void unlock_page_lruvec_irq(struct lruvec *lruvec) { spin_unlock_irq(&lruvec->lru_lock); } static inline void unlock_page_lruvec_irqrestore(struct lruvec *lruvec, unsigned long flags) { spin_unlock_irqrestore(&lruvec->lru_lock, flags); } /* Test requires a stable page->memcg binding, see page_memcg() */ static inline bool page_matches_lruvec(struct page *page, struct lruvec *lruvec) { return lruvec_pgdat(lruvec) == page_pgdat(page) && lruvec_memcg(lruvec) == page_memcg(page); } /* Don't lock again iff page's lruvec locked */ static inline struct lruvec *relock_page_lruvec_irq(struct page *page, struct lruvec *locked_lruvec) { if (locked_lruvec) { if (page_matches_lruvec(page, locked_lruvec)) return locked_lruvec; unlock_page_lruvec_irq(locked_lruvec); } return lock_page_lruvec_irq(page); } /* Don't lock again iff page's lruvec locked */ static inline struct lruvec *relock_page_lruvec_irqsave(struct page *page, struct lruvec *locked_lruvec, unsigned long *flags) { if (locked_lruvec) { if (page_matches_lruvec(page, locked_lruvec)) return locked_lruvec; unlock_page_lruvec_irqrestore(locked_lruvec, *flags); } return lock_page_lruvec_irqsave(page, flags); } #ifdef CONFIG_CGROUP_WRITEBACK struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb); void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, unsigned long *pheadroom, unsigned long *pdirty, unsigned long *pwriteback); void mem_cgroup_track_foreign_dirty_slowpath(struct page *page, struct bdi_writeback *wb); static inline void mem_cgroup_track_foreign_dirty(struct page *page, struct bdi_writeback *wb) { if (mem_cgroup_disabled()) return; if (unlikely(&page_memcg(page)->css != wb->memcg_css)) mem_cgroup_track_foreign_dirty_slowpath(page, wb); } void mem_cgroup_flush_foreign(struct bdi_writeback *wb); #else /* CONFIG_CGROUP_WRITEBACK */ static inline struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb) { return NULL; } static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, unsigned long *pheadroom, unsigned long *pdirty, unsigned long *pwriteback) { } static inline void mem_cgroup_track_foreign_dirty(struct page *page, struct bdi_writeback *wb) { } static inline void mem_cgroup_flush_foreign(struct bdi_writeback *wb) { } #endif /* CONFIG_CGROUP_WRITEBACK */ struct sock; bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages, gfp_t gfp_mask); void mem_cgroup_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages); #ifdef CONFIG_MEMCG extern struct static_key_false memcg_sockets_enabled_key; #define mem_cgroup_sockets_enabled static_branch_unlikely(&memcg_sockets_enabled_key) void mem_cgroup_sk_alloc(struct sock *sk); void mem_cgroup_sk_free(struct sock *sk); static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg) { if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && memcg->tcpmem_pressure) return true; do { if (time_before(jiffies, memcg->socket_pressure)) return true; } while ((memcg = parent_mem_cgroup(memcg))); return false; } int alloc_shrinker_info(struct mem_cgroup *memcg); void free_shrinker_info(struct mem_cgroup *memcg); void set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id); void reparent_shrinker_deferred(struct mem_cgroup *memcg); #else #define mem_cgroup_sockets_enabled 0 static inline void mem_cgroup_sk_alloc(struct sock *sk) { }; static inline void mem_cgroup_sk_free(struct sock *sk) { }; static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg) { return false; } static inline void set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id) { } #endif #ifdef CONFIG_MEMCG_KMEM bool mem_cgroup_kmem_disabled(void); int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order); void __memcg_kmem_uncharge_page(struct page *page, int order); struct obj_cgroup *get_obj_cgroup_from_current(void); int obj_cgroup_charge(struct obj_cgroup *objcg, gfp_t gfp, size_t size); void obj_cgroup_uncharge(struct obj_cgroup *objcg, size_t size); extern struct static_key_false memcg_kmem_enabled_key; extern int memcg_nr_cache_ids; void memcg_get_cache_ids(void); void memcg_put_cache_ids(void); /* * Helper macro to loop through all memcg-specific caches. Callers must still * check if the cache is valid (it is either valid or NULL). * the slab_mutex must be held when looping through those caches */ #define for_each_memcg_cache_index(_idx) \ for ((_idx) = 0; (_idx) < memcg_nr_cache_ids; (_idx)++) static inline bool memcg_kmem_enabled(void) { return static_branch_likely(&memcg_kmem_enabled_key); } static inline int memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order) { if (memcg_kmem_enabled()) return __memcg_kmem_charge_page(page, gfp, order); return 0; } static inline void memcg_kmem_uncharge_page(struct page *page, int order) { if (memcg_kmem_enabled()) __memcg_kmem_uncharge_page(page, order); } /* * A helper for accessing memcg's kmem_id, used for getting * corresponding LRU lists. */ static inline int memcg_cache_id(struct mem_cgroup *memcg) { return memcg ? memcg->kmemcg_id : -1; } struct mem_cgroup *mem_cgroup_from_obj(void *p); #else static inline bool mem_cgroup_kmem_disabled(void) { return true; } static inline int memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order) { return 0; } static inline void memcg_kmem_uncharge_page(struct page *page, int order) { } static inline int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order) { return 0; } static inline void __memcg_kmem_uncharge_page(struct page *page, int order) { } #define for_each_memcg_cache_index(_idx) \ for (; NULL; ) static inline bool memcg_kmem_enabled(void) { return false; } static inline int memcg_cache_id(struct mem_cgroup *memcg) { return -1; } static inline void memcg_get_cache_ids(void) { } static inline void memcg_put_cache_ids(void) { } static inline struct mem_cgroup *mem_cgroup_from_obj(void *p) { return NULL; } #endif /* CONFIG_MEMCG_KMEM */ #endif /* _LINUX_MEMCONTROL_H */
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