David Sharp 750912fa36 tracing: Add an 'overwrite' trace_option. ... Add an "overwrite" trace_option for ftrace to control whether the buffer should be overwritten on overflow or not. The default remains to overwrite old events when the buffer is full. This patch adds the option to instead discard newest events when the buffer is full. This is useful to get a snapshot of traces just after enabling traces. Dropping the current event is also a simpler code path. Signed-off-by: David Sharp <dhsharp@google.com> LKML-Reference: <1291844807-15481-1-git-send-email-dhsharp@google.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2011-03-09 13:52:27 -05:00
..
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
DocBook	Docbook: add fs/eventfd.c and fix typos in it	2011-02-21 15:07:04 -08:00
PCI	Documentation: pci.txt: fix typo	2010-07-11 22:17:45 +02:00
RCU	rcu: update documentation/comments for Lai's adoption patch	2010-11-29 22:01:59 -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	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
arm	Revert "dt: add documentation of ARM dt boot interface"	2011-02-14 08:13:20 -07:00
auxdisplay	…
blackfin	Blackfin: document SPI CS limitations with CPHA=0	2010-08-06 12:55:52 -04:00
block	Documentation: remove anticipatory scheduler info	2010-11-11 12:09:59 +01:00
blockdev	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
cdrom	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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
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	firmware: Update hotplug script	2010-08-05 13:53:34 -07:00
frv	…
hwmon	hwmon: (k10temp) add support for AMD Family 12h/14h CPUs	2011-02-18 06:14:24 -08:00
i2c	i2c: Add generic I2C multiplexer using GPIO API	2011-01-10 22:11:23 +01:00
i2o	…
ia64	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
ide	…
infiniband	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-08-04 15:31:02 -07:00
ja_JP	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	thinkpad-acpi: untangle ACPI/vendor backlight selection	2010-08-16 11:54:50 -04:00
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	mmc: add erase, secure erase, trim and secure trim operations	2010-08-12 08:43:30 -07:00
mn10300	…
mtd	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
namespaces	…
netlabel	…
networking	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6	2011-03-03 15:48:01 -08:00
nfc	NFC: Driver for NXP Semiconductors PN544 NFC chip.	2011-01-13 08:03:19 -08:00
parisc	…
pcmcia	pcmcia: use autoconfiguration feature for ioports and iomem	2010-09-29 17:20:24 +02:00
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	…
s390	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	tracing: Add an 'overwrite' trace_option.	2011-03-09 13:52:27 -05:00
uml	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	watchdog: docs: add an entry for imx2_wdt	2010-07-01 16:02:55 +00:00
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	mmc: add erase, secure erase, trim and secure trim operations	2010-08-12 08:43:30 -07:00
BUG-HUNTING	…
Changes	Documentation update broken web addresses	2010-07-11 21:55:42 +02:00
CodingStyle	…
DMA-API-HOWTO.txt	Documentation: DMA-API-HOWTO.txt: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN	2010-08-14 11:56:46 -07:00
DMA-API.txt	dma-mapping: remove dma_is_consistent API	2010-08-11 08:59:21 -07:00
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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	…
Intel-IOMMU.txt	…
Makefile	[media] Remove the old V4L1 v4lgrab.c file	2010-12-29 08:17:12 -02:00
ManagementStyle	…
SAK.txt	…
SELinux.txt	…
SM501.txt	…
SecurityBugs	…
Smack.txt	…
SubmitChecklist	Documentation: update SubmitChecklist for O=objdir and kconfig testing	2010-05-24 07:31:20 -07:00
SubmittingDrivers	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
SubmittingPatches	SubmittingPatches: add more about patch descriptions	2010-08-09 20:45:05 -07:00
VGA-softcursor.txt	…
apparmor.txt	AppArmor: update Maintainer and Documentation	2010-08-02 15:35:15 +10:00
applying-patches.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
binfmt_misc.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	documentation: fix almost duplicate filenames (IO/io-mapping.txt)	2010-07-20 17:49:30 +00:00
cachetlb.txt	…
circular-buffers.txt	…
coccinelle.txt	scripts/coccinelle: update for compatability with Coccinelle 0.2.4	2010-12-03 12:27:01 +01:00
cpu-hotplug.txt	documentation: fix erroneous email address.	2010-08-11 23:04:10 +09:30
cpu-load.txt	…
cputopology.txt	topology/sysfs: Provide book id and siblings attributes	2010-09-09 20:41:25 +02:00
credentials.txt	CRED: Fix __task_cred()'s lockdep check and banner comment	2010-07-29 15:16:18 -07:00
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
dmaengine.txt	…
dontdiff	Documentation/dontdiff: add further autogenerated files to ignore list	2011-01-06 09:59:37 -08:00
dynamic-debug-howto.txt	Dynamic Debug: Introduce ddebug_query= boot parameter	2010-10-22 10:16:42 -07:00
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	…
hw_random.txt	…
init.txt	…
initrd.txt	…
intel_txt.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	remove extraneous 'is' from Documentation/iostats.txt	2011-01-03 14:00:28 +01:00
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	docbook: warn on unused doc entries	2010-09-11 16:49:21 -07:00
kernel-docs.txt	Documentation: update kernel-docs.txt	2011-01-06 09:59:38 -08:00
kernel-parameters.txt	Documentation: log_buf_len uses [KMG] suffix	2011-02-21 15:07:04 -08:00
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	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
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
mca.txt	…
md.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
memory-barriers.txt	…
memory-hotplug.txt	…
memory.txt	…
mono.txt	…
mutex-design.txt	mutex: Fix annotations to include it in kernel-locking docbook	2010-09-03 08:19:51 +02:00
nmi_watchdog.txt	…
nommu-mmap.txt	…
numastat.txt	…
oops-tracing.txt	panic: Add taint flag TAINT_FIRMWARE_WORKAROUND ('I')	2010-05-19 08:37:43 +01:00
padata.txt	Documentation/padata.txt: fix typos etc.	2010-08-11 08:59:18 -07:00
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	variable name fix to Documentation/rt-mutex-design.txt	2010-06-05 17:39:09 +02:00
rt-mutex.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
sgi-visws.txt	…
sparse.txt	update email address	2010-07-19 10:56:54 +02:00
spinlocks.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	…
svga.txt	…
sysfs-rules.txt	…
sysrq.txt	documentation: update sysrq.txt magic sysrq keys	2010-10-26 17:32:41 -07:00
tomoyo.txt	TOMOYO: Update version to 2.3.0	2010-08-02 15:35:10 +10:00
unaligned-memory-access.txt	…
unicode.txt	…
unshare.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	…