Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Thomas Gleixner 8d32a307e4 genirq: Provide forced interrupt threading ... Add a commandline parameter "threadirqs" which forces all interrupts except those marked IRQF_NO_THREAD to run threaded. That's mostly a debug option to allow retrieving better debug data from crashing interrupt handlers. If "threadirqs" is not enabled on the kernel command line, then there is no impact in the interrupt hotpath. Architecture code needs to select CONFIG_IRQ_FORCED_THREADING after marking the interrupts which cant be threaded IRQF_NO_THREAD. All interrupts which have IRQF_TIMER set are implict marked IRQF_NO_THREAD. Also all PER_CPU interrupts are excluded. Forced threading hard interrupts also forces all soft interrupt handling into thread context. When enabled it might slow down things a bit, but for debugging problems in interrupt code it's a reasonable penalty as it does not immediately crash and burn the machine when an interrupt handler is buggy. Some test results on a Core2Duo machine: Cache cold run of: # time git grep irq_desc non-threaded threaded real 1m18.741s 1m19.061s user 0m1.874s 0m1.757s sys 0m5.843s 0m5.427s # iperf -c server non-threaded [ 3] 0.0-10.0 sec 1.09 GBytes 933 Mbits/sec [ 3] 0.0-10.0 sec 1.09 GBytes 934 Mbits/sec [ 3] 0.0-10.0 sec 1.09 GBytes 933 Mbits/sec threaded [ 3] 0.0-10.0 sec 1.09 GBytes 939 Mbits/sec [ 3] 0.0-10.0 sec 1.09 GBytes 934 Mbits/sec [ 3] 0.0-10.0 sec 1.09 GBytes 937 Mbits/sec Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110223234956.772668648@linutronix.de>		2011-02-26 11:57:18 +01:00
..
ABI	Merge branch 'can/at91_can-for-net-2.6' of git://git.pengutronix.de/git/mkl/linux-2.6	2011-01-24 15:16:11 -08:00
accounting	taskstats: pad taskstats netlink response for aligment issues on ia64	2010-12-22 19:43:34 -08:00
acpi	ACPI, APEI, Add APEI generic error status printing support	2010-12-13 23:42:12 -05:00
aoe
arm	Revert "dt: add documentation of ARM dt boot interface"	2011-02-14 08:13:20 -07:00
auxdisplay
blackfin
block	Documentation: remove anticipatory scheduler info	2010-11-11 12:09:59 +01:00
blockdev
cdrom
cgroups	revert documentaion update for memcg's dirty ratio.	2011-01-14 07:52:02 -08:00
connector
console
cpu-freq
cpuidle
cris
crypto
development-process	Documentation/development-process: more staging info	2010-11-18 15:00:47 -08:00
device-mapper	dm: raid456 basic support	2011-01-13 20:00:02 +00:00
devicetree	Revert "dt: add documentation of ARM dt boot interface"	2011-02-14 08:13:20 -07:00
DocBook	drm: fix wrong usages of drm_device in DRM Developer's Guide	2011-02-15 09:01:29 +10:00
driver-model	driver core: prune docs about device_interface	2010-11-10 16:57:11 -08:00
dvb	[media] Documentation/lmedm04: Fix firmware extract information	2010-12-29 08:16:30 -02:00
early-userspace
fault-injection
fb	Merge branch 'fbdev/udlfb'	2011-01-06 18:10:09 +09:00
filesystems	NTFS: Fix invalid pointer dereference in ntfs_mft_record_alloc().	2011-01-31 12:58:11 +10:00
firmware_class
frv
hwmon	hwmon: (lm93) Add support for LM94	2011-01-18 12:22:54 -08:00
i2c	i2c: Add generic I2C multiplexer using GPIO API	2011-01-10 22:11:23 +01:00
i2o
ia64
ide
infiniband
input	Input: fix force feedback capability query example	2011-01-11 01:07:55 -08:00
ioctl	pps: add kernel consumer support	2011-01-13 08:03:21 -08:00
isdn
ja_JP
kbuild	Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6	2011-01-10 08:57:03 -08:00
kdump	kdump: update kexec-tools URL and Vivek's email	2010-11-25 14:36:38 +01:00
ko_KR	Docs/Kconfig: Update: osdl.org -> linuxfoundation.org	2010-11-15 23:50:13 +01:00
kvm	Merge branch 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2011-01-13 10:14:24 -08:00
laptops
leds	Documentation: led drivers lp5521 and lp5523	2010-11-12 07:55:32 -08:00
lguest	lguest: document --rng in example Launcher	2011-01-20 21:37:29 +10:30
m68k
make	kbuild: introduce HDR_ARCH_LIST for headers_install_all	2010-12-14 22:16:19 +01:00
mips
misc-devices	Documentation: short descriptions for bh1770glc and apds990x drivers	2010-10-26 16:52:14 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking	net: fix ifenslave build flags	2011-02-10 20:05:25 -08:00
nfc	NFC: Driver for NXP Semiconductors PN544 NFC chip.	2011-01-13 08:03:19 -08:00
parisc
PCI
pcmcia
power	PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt	2010-12-24 15:02:41 +01:00
powerpc	dt: Move device tree documentation out of powerpc directory	2011-01-31 00:09:01 -07:00
pps	pps: add parallel port PPS signal generator	2011-01-13 08:03:21 -08:00
prctl
RCU	rcu: update documentation/comments for Lai's adoption patch	2010-11-29 22:01:59 -08:00
s390
scheduler	sched, docs: Update schedstats documentation to version 15	2011-02-01 09:07:13 +01:00
scsi	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
serial	pps: timestamp is always passed to dcd_change()	2011-01-13 08:03:20 -08:00
sh	sh: clkfwk: Kill off unused clk_set_rate_ex().	2010-11-15 18:25:12 +09:00
sound	ALSA: HDA: Add a new model "asus" for Conexant 5066/205xx	2011-01-22 17:29:22 +01:00
sparc
spi	arm/pxa2xx: reorgazine SSP and SPI header files	2010-12-01 12:18:33 +01:00
sysctl	sysctl: remove obsolete comments	2011-01-13 08:03:18 -08:00
target	[SCSI] target: Add LIO target core v4.0.0-rc6	2011-01-14 10:12:29 -06:00
telephony
thermal	thermal: Add event notification to thermal framework	2011-01-12 00:08:35 -05:00
timers	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
trace	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
uml
usb	USB: use the runtime-PM autosuspend implementation	2010-11-16 14:03:41 -08:00
video4linux	[media] v4l2-ctrls: v4l2_ctrl_handler_setup must set is_new to 1	2011-01-19 11:45:32 -02:00
vm	thp: transparent hugepage support documentation	2011-01-13 17:32:38 -08:00
w1	w1: DS2423 counter driver and documentation	2011-01-13 08:03:22 -08:00
watchdog
wimax
x86	x86: support XZ-compressed kernel	2011-01-13 08:03:25 -08:00
zh_CN	Docs/Kconfig: Update: osdl.org -> linuxfoundation.org	2010-11-15 23:50:13 +01:00
.gitignore
00-INDEX
apparmor.txt
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
coccinelle.txt	scripts/coccinelle: update for compatability with Coccinelle 0.2.4	2010-12-03 12:27:01 +01:00
CodingStyle
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
credentials.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2010-10-28 09:35:11 -07:00
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff	Documentation/dontdiff: add further autogenerated files to ignore list	2011-01-06 09:59:37 -08:00
dynamic-debug-howto.txt
edac.txt	EDAC: Fix typos in Documentation/edac.txt	2010-11-25 17:32:47 +01:00
eisa.txt
email-clients.txt	Documentation/email-clients.txt: update Thunderbird docs with wordwrap plugin	2011-01-13 08:03:15 -08:00
feature-removal-schedule.txt	memsw: deprecate noswapaccount kernel parameter and schedule it for removal	2011-02-02 16:03:18 -08:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt	Revert "gpiolib: annotate gpio-intialization with __must_check"	2011-01-13 17:26:46 -08:00
highuid.txt
HOWTO
hw_random.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt	remove extraneous 'is' from Documentation/iostats.txt	2011-01-03 14:00:28 +01:00
IPMI.txt	IPMI: Add the document description of ipmi_get_smi_info	2010-12-14 00:22:00 -05:00
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt	Documentation: update kernel-docs.txt	2011-01-06 09:59:38 -08:00
kernel-parameters.txt	genirq: Provide forced interrupt threading	2011-02-26 11:57:18 +01:00
keys-request-key.txt
keys-trusted-encrypted.txt	keys: add new trusted key-type	2010-11-29 08:55:25 +11:00
keys.txt
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
kref.txt
ldm.txt
leds-class.txt	led-class: always implement blinking	2010-11-12 07:55:32 -08:00
leds-lp3944.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt	take coda-private headers out of include/linux	2011-01-12 20:02:48 -05:00
Makefile	[media] Remove the old V4L1 v4lgrab.c file	2010-12-29 08:17:12 -02:00
ManagementStyle
mca.txt
md.txt
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt	Documentation: remove anticipatory scheduler info	2010-11-11 12:09:59 +01:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt	documentation: update sysrq.txt magic sysrq keys	2010-10-26 17:32:41 -07:00
tomoyo.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
volatile-considered-harmful.txt
workqueue.txt	workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'	2011-02-16 17:48:59 +01:00
xz.txt	decompressors: add XZ decompressor module	2011-01-13 08:03:24 -08:00
zorro.txt