John Stultz 5de23d435e proc: add /proc/<pid>/timerslack_ns interface ... This patch provides a proc/PID/timerslack_ns interface which exposes a task's timerslack value in nanoseconds and allows it to be changed. This allows power/performance management software to set timer slack for other threads according to its policy for the thread (such as when the thread is designated foreground vs. background activity) If the value written is non-zero, slack is set to that value. Otherwise sets it to the default for the thread. This interface checks that the calling task has permissions to to use PTRACE_MODE_ATTACH_FSCREDS on the target task, so that we can ensure arbitrary apps do not change the timer slack for other apps. Signed-off-by: John Stultz <john.stultz@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Oren Laadan <orenl@cellrox.com> Cc: Ruchi Kandoi <kandoiruchi@google.com> Cc: Rom Lemarchand <romlem@android.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-03-17 15:09:34 -07:00
..
ABI	[media] media: rc: nuvoton: switch attribute wakeup_data to text	2016-03-05 08:22:03 -03:00
accounting	Documentation-getdelays: Apply a recommendation from "checkpatch.pl" in main()	2015-12-24 07:22:32 -07:00
acpi	mfd: core: redo ACPI matching of the children devices	2015-10-26 15:25:53 +01:00
aoe
arm	ARM: SoC multiplatform code changes for v4.5	2016-01-20 18:03:56 -08:00
arm64	arm64: Documentation: add list of software workarounds for errata	2015-12-11 17:33:21 +00:00
auxdisplay
backlight
blackfin
block	A relatively boring cycle in the docs tree. There's a few kernel-doc	2016-01-17 11:55:07 -08:00
blockdev
bus-devices
cdrom
cgroup-v1	cgroup: rename cgroup documentations	2016-01-11 23:14:51 -05:00
cma
connector
console
cpu-freq	Documentation: cpufreq: intel_pstate: fix typo	2016-02-18 20:31:53 +01:00
cpuidle
cris
crypto	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
development-process
device-mapper	dm cache: make the 'mq' policy an alias for 'smq'	2016-03-10 17:12:08 -05:00
devicetree	media updates for v4.6-rc1	2016-03-16 18:27:32 -07:00
dmaengine	Merge branch 'topic/async' into for-linus	2016-01-06 15:17:47 +05:30
DocBook	[media] V4L: add Y12I, Y8I and Z16 pixel format documentation	2016-03-03 06:29:42 -03:00
driver-model	driver-core: platform: Provide helpers for multi-driver modules	2015-10-05 05:02:40 +01:00
dvb	[media] media: change email address	2016-01-25 12:01:08 -02:00
early-userspace
EDID
extcon
fault-injection	net: Add support for CHANGEUPPER notifier error injection	2015-12-03 11:49:23 -05:00
fb
features	dma-mapping: always provide the dma_map_ops based implementation	2016-01-20 17:09:18 -08:00
filesystems	proc: add /proc/<pid>/timerslack_ns interface	2016-03-17 15:09:34 -07:00
firmware_class
fmc
fpga	usage documentation for FPGA manager core	2015-10-07 18:07:20 +01:00
frv
gpio	Doc: gpio: Fix typos in Documentation/gpio	2015-11-20 16:51:16 -07:00
hid
hwmon	hwmon: Create an NSA320 hardware monitoring driver	2016-03-08 18:40:49 -08:00
i2c	i2c: i801: add Intel Lewisburg device IDs	2015-11-20 16:22:21 +01:00
ia64
ide
iio	iio: Documentation: Add IIO configfs documentation	2015-12-03 18:19:28 +00:00
infiniband	IB: remove in-kernel support for memory windows	2015-12-23 14:29:04 -05:00
input	Input: add userio module	2015-10-27 18:55:31 -07:00
ioctl	Doc: ioctl: Fix typos in Documentation/ioctl	2015-11-20 16:52:50 -07:00
isdn
ja_JP	Documentation: translations: update linux cross reference link	2016-01-11 18:26:58 -07:00
kbuild	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
kdump
ko_KR	Documentation: translations: update linux cross reference link	2016-01-11 18:26:58 -07:00
laptops
leds	Documentation: leds: Add description of brightness setting API	2016-01-04 09:57:31 +01:00
locking	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-11-03 16:10:43 -08:00
m68k
memory-devices
metag
mic	misc: mic: Update MIC host daemon with COSM changes	2015-10-04 12:54:54 +01:00
mips
misc-devices
mmc	mmc: core: Remove MMC_CLKGATE	2015-10-26 16:00:09 +01:00
mn10300
mtd	Documentation: mtd: improve nand_ecc.txt for readability and correctness	2015-11-17 17:05:14 -08:00
namespaces
netlabel
networking	net: change tcp_syn_retries documentation	2016-01-20 18:55:08 -08:00
nfc
nios2
nvdimm	libnvdimm: documentation clarifications	2015-11-12 09:55:23 -08:00
nvmem
parisc
PCI
pcmcia
phy
platform
power	Merge branches 'pm-pci' and 'pm-core'	2016-01-12 01:10:52 +01:00
powerpc
pps
prctl
pti
ptp	ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping	2016-03-03 14:23:43 -08:00
rapidio
RCU	documentation: Update RCU requirements based on expedited changes	2015-12-05 12:34:32 -08:00
s390	s390/zcore: remove /sys/kernel/debug/zcore/mem	2015-11-27 09:24:12 +01:00
scheduler
scsi	st: Fix MTMKPART to work with newer drives	2016-02-23 21:27:02 -05:00
security	keys, trusted: seal with a TPM2 authorization policy	2015-12-20 15:27:13 +02:00
serial	Documentation: improve line discipline method descriptions	2015-10-05 04:53:26 +01:00
sh
sound	ASoC: img: Add documentation for SPDIF in controls	2015-11-16 10:06:58 +00:00
spi	spi: tools: move spidev_test metadata	2015-11-30 12:14:12 +00:00
sysctl	mm: scale kswapd watermarks in proportion to memory	2016-03-17 15:09:34 -07:00
target	target: use per-attribute show and store methods	2015-10-13 22:17:49 -07:00
thermal	thermal: add description for integral_cutoff unit	2016-01-14 13:29:08 -07:00
timers	hpet: Drop stale URLs	2016-02-17 09:39:56 +01:00
tpm
trace	x86, tracing, perf: Add trace point for MSR accesses	2015-12-06 12:56:10 +01:00
usb	The chipidea changes for v4.5-rc1	2015-12-26 16:59:14 -08:00
vDSO
video4linux	[media] saa7134: Add support for Snazio TvPVR PRO	2016-03-03 09:03:48 -03:00
virtual	One of the largest releases for KVM... Hardly any generic improvement,	2016-03-16 09:55:35 -07:00
vm	mm: thp: set THP defrag by default to madvise and add a stall-free defrag option	2016-03-17 15:09:34 -07:00
w1	w1: masters: omap_hdq: add support for 1-wire mode	2015-10-05 04:47:09 +01:00
watchdog	Add sun4v_wdt watchdog driver	2016-01-31 11:06:24 -08:00
wimax
x86	Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-15 10:39:22 -07:00
xtensa
zh_CN	[media] media framework: rename pads init function to media_entity_pads_init()	2016-01-11 12:19:03 -02:00
00-INDEX
adding-syscalls.txt
applying-patches.txt
assoc_array.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt	mm: memcontrol: reclaim and OOM kill when shrinking memory.max below usage	2016-03-17 15:09:34 -07:00
Changes	There is a nice new document from Neil on how pathname lookups work and	2015-11-05 15:59:24 -08:00
circular-buffers.txt
clk.txt
coccinelle.txt
CodeOfConflict
CodingStyle	Documentation: fix typo in CodingStyle	2016-01-11 18:18:16 -07:00
cpu-hotplug.txt	Documentation: cpu-hotplug: Fix sysfs mount instructions	2015-12-10 11:35:30 -07:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	dma-mapping: always provide the dma_map_ops based implementation	2016-01-20 17:09:18 -08:00
DMA-API.txt	DMA-API: fix confusing sentence in Documentation/DMA-API.txt	2016-01-11 18:29:00 -07:00
DMA-attributes.txt
dma-buf-sharing.txt
DMA-ISA-LPC.txt
dontdiff	Documentation: dontdiff: remove media from dontdiff	2015-11-11 10:08:07 -07:00
dynamic-debug-howto.txt
edac.txt	EDAC: Remove references to bluesmoke.sourceforge.net	2015-11-26 14:46:06 +01:00
efi-stub.txt
eisa.txt
email-clients.txt	A few more documentation patches that wandered in and have no reason to	2015-11-13 09:19:05 -08:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt
highuid.txt
HOWTO	Documentation: HOWTO: update code cross reference link	2015-12-10 11:19:35 -07:00
hsi.txt
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt	iommu/vt-d: Fix link to Intel IOMMU Specification	2016-01-29 12:32:12 +01:00
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	ipmi watchdog : add panic_wdt_timeout parameter	2015-11-16 06:28:43 -06:00
IRQ-affinity.txt
IRQ-domain.txt	irqdomain: Documentation updates	2015-10-13 19:01:25 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt	mm, slub, kasan: enable user tracking by default with KASAN=y	2015-11-05 19:34:48 -08:00
kernel-doc-nano-HOWTO.txt
kernel-docs.txt	Documentation: translations: update linux cross reference link	2016-01-11 18:26:58 -07:00
kernel-parameters.txt	Power management and ACPI material for v4.6-rc1, part 1	2016-03-16 14:10:53 -07:00
kernel-per-CPU-kthreads.txt	irq_poll: make blk-iopoll available outside the block layer	2015-12-11 11:52:24 -08:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
kselftest.txt
ldm.txt
local_ops.txt
lockup-watchdogs.txt	kernel/watchdog.c: add sysctl knob hardlockup_panic	2015-11-05 19:34:48 -08:00
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt
Makefile	spi: Move spi code from Documentation to tools	2015-11-23 14:54:01 +00:00
ManagementStyle
md-cluster.txt	md-cluster: update the documentation	2016-01-06 11:39:06 +11:00
md.txt
memory-barriers.txt	virtio: barrier rework+fixes	2016-01-18 16:44:24 -08:00
memory-hotplug.txt	memory-hotplug: add automatic onlining policy for the newly added memory	2016-03-15 16:55:16 -07:00
men-chameleon-bus.txt
module-signing.txt
mono.txt
nommu-mmap.txt
ntb.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	mm, printk: introduce new format string for flags	2016-03-15 16:55:16 -07:00
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt	rtc: implement a sysfs interface for clock offset	2016-03-14 17:08:16 +01:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable_kernel_rules.txt: Remove extra space after Cc:	2015-11-20 16:54:57 -07:00
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches	A few more documentation patches that wandered in and have no reason to	2015-11-13 09:19:05 -08:00
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
ubsan.txt	UBSAN: run-time undefined behavior sanity checker	2016-01-20 17:09:18 -08:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt