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Tejun Heo fa8a7094ba x86: implement percpu_alloc kernel parameter ... According to Andi, it isn't clear whether lpage allocator is worth the trouble as there are many processors where PMD TLB is far scarcer than PTE TLB. The advantage or disadvantage probably depends on the actual size of percpu area and specific processor. As performance degradation due to TLB pressure tends to be highly workload specific and subtle, it is difficult to decide which way to go without more data. This patch implements percpu_alloc kernel parameter to allow selecting which first chunk allocator to use to ease debugging and testing. While at it, make sure all the failure paths report why something failed to help determining why certain allocator isn't working. Also, kill the "Great future plan" comment which had already been realized quite some time ago. [ Impact: allow explicit percpu first chunk allocator selection ] Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Jan Beulich <JBeulich@novell.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu>		16 years ago
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ABI	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	16 years ago
DocBook	debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.	16 years ago
PCI	…
RCU	trivial: Miscellaneous documentation typo fixes	16 years ago
accounting	Documentation/accounting/getdelays.c intialize the variable before using it	16 years ago
acpi	…
aoe	…
arm	[ARM] S3C24XX: GPIO: Change to macros for GPIO numbering	16 years ago
auxdisplay	…
blackfin	…
block	trivial: Miscellaneous documentation typo fixes	16 years ago
blockdev	mflash: initial support	16 years ago
cdrom	debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.	16 years ago
cgroups	memcg: add interface to reset limits	16 years ago
connector	Documentation/connector/cn_test.c comment unused cn_test_want_notify()	16 years ago
console	…
cpu-freq	[CPUFREQ] minor correction to cpu-freq documentation	16 years ago
cpuidle	…
cris	…
crypto	…
development-process	docs: Encourage better changelogs in the development process document	16 years ago
device-mapper	…
driver-model	Driver Core: Warn driver authors about adding device attributes	16 years ago
dvb	V4L/DVB (11962): dvb: Fix broken link in get_dvb_firmware for nxt2004 (A180)	16 years ago
early-userspace	…
fault-injection	debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.	16 years ago
fb	Documentation/fb/vesafb.txt: fix typo	16 years ago
filesystems	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	16 years ago
firmware_class	driver core: fix documentation of request_firmware_nowait	16 years ago
frv	…
hwmon	hwmon: (f71882fg) Add support for the F71858F	16 years ago
i2c	i2c: Add a sysfs interface to instantiate devices	16 years ago
i2o	…
ia64	…
ide	ide: preserve Host Protected Area by default (v2)	16 years ago
infiniband	IPoIB: Document newish features	16 years ago
input	Merge commit 'v2.6.30' into next	16 years ago
ioctl	LinuxPPS: core support	16 years ago
isdn	isdn: extend INTERFACE.CAPI document	16 years ago
ja_JP	block: rename CONFIG_LBD to CONFIG_LBDAF	16 years ago
kbuild	kconfig: resort the documentation of the environment variables	16 years ago
kdump	trivial: Miscellaneous documentation typo fixes	16 years ago
ko_KR	…
laptops	trivial: Miscellaneous documentation typo fixes	16 years ago
lguest	lguest: add support for indirect ring entries	16 years ago
m68k	…
make	…
mips	…
misc-devices	drivers/misc/isl29003.c: driver for the ISL29003 ambient light sensor	16 years ago
mn10300	trivial: Miscellaneous documentation typo fixes	16 years ago
mtd	trivial: Miscellaneous documentation typo fixes	16 years ago
namespaces	…
netlabel	…
networking	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6	16 years ago
parisc	…
pcmcia	…
power	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	16 years ago
powerpc	sdhci: Add support for hosts that are only capable of 1-bit transfers	16 years ago
pps	LinuxPPS: core support	16 years ago
prctl	…
s390	trivial: Miscellaneous documentation typo fixes	16 years ago
scheduler	trivial: Miscellaneous documentation typo fixes	16 years ago
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	16 years ago
serial	…
sh	…
sound	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	16 years ago
sparc	…
spi	spi: documentation: emphasise spi_master.setup() semantics	16 years ago
sysctl	vmscan: properly account for the number of page cache pages zone_reclaim() can reclaim	16 years ago
telephony	…
thermal	…
timers	trivial: Miscellaneous documentation typo fixes	16 years ago
trace	debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.	16 years ago
uml	…
usb	trivial: usb: fix missing space typo in doc	16 years ago
video4linux	V4L/DVB (11996): saa7134: add support for AVerMedia M103 (f736)	16 years ago
vm	Documentation/vm/Makefile: don't try to build slqbinfo	16 years ago
w1	…
watchdog	[WATCHDOG] hpwdt: Add NMI sourcing	16 years ago
wimax	…
x86	Merge branch 'linus' into x86/mce3	16 years ago
zh_CN	…
00-INDEX	…
BUG-HUNTING	…
Changes	Documentation/Changes: perl is needed to build the kernel	16 years ago
CodingStyle	trivial: fix typo milisecond/millisecond for documentation and source comments.	16 years ago
DMA-API.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
DMA-mapping.txt	dma-mapping: update the old macro DMA_nBIT_MASK related documentations	16 years ago
HOWTO	…
IO-mapping.txt	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	…
ManagementStyle	…
SAK.txt	…
SELinux.txt	…
SM501.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
SecurityBugs	…
Smack.txt	smack: implement logging V3	16 years ago
SubmitChecklist	block: rename CONFIG_LBD to CONFIG_LBDAF	16 years ago
SubmittingDrivers	…
SubmittingPatches	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	16 years ago
VGA-softcursor.txt	…
applying-patches.txt	…
atomic_ops.txt	Documentation/atomic_ops.txt: fix sample code	16 years ago
bad_memory.txt	…
basic_profiling.txt	…
binfmt_misc.txt	…
braille-console.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
bt8xxgpio.txt	…
c2port.txt	…
cachetlb.txt	…
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
credentials.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	trivial: Documentation/dell_rbu.txt: fix typos	16 years ago
devices.txt	lanana: assign a device name and numbering for MAX3100	16 years ago
dmaengine.txt	…
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
eisa.txt	…
email-clients.txt	…
exception.txt	…
feature-removal-schedule.txt	i2c: Get rid of the legacy binding model	16 years ago
futex-requeue-pi.txt	futex: add requeue-pi documentation	16 years ago
gcov.txt	gcov: add gcov profiling infrastructure	16 years ago
gpio.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
highuid.txt	…
hw_random.txt	…
ics932s401	…
initrd.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	kernel-doc: restrict syntax for private: and public:	16 years ago
kernel-docs.txt	…
kernel-parameters.txt	x86: implement percpu_alloc kernel parameter	16 years ago
keys-request-key.txt	…
keys.txt	…
kmemcheck.txt	kmemcheck: add the kmemcheck documentation	16 years ago
kmemleak.txt	kmemleak: Add documentation on the memory leak detector	16 years ago
kobject.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
kprobes.txt	debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.	16 years ago
kref.txt	…
ldm.txt	…
leds-class.txt	…
local_ops.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
lockdep-design.txt	locking: Documentation: lockdep-design.txt, fix note of state bits	16 years ago
lockstat.txt	…
logo.gif	Revert "linux.conf.au 2009: Tuz"	16 years ago
logo.txt	Revert "linux.conf.au 2009: Tuz"	16 years ago
magic-number.txt	…
markers.txt	…
mca.txt	…
md.txt	…
memory-barriers.txt	sched: Document memory barriers implied by sleep/wake-up primitives	16 years ago
memory-hotplug.txt	trivial: Miscellaneous documentation typo fixes	16 years ago
memory.txt	…
mono.txt	…
mutex-design.txt	…
nmi_watchdog.txt	…
nommu-mmap.txt	…
numastat.txt	…
oops-tracing.txt	…
parport-lowlevel.txt	…
parport.txt	…
pi-futex.txt	…
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	…
prio_tree.txt	…
rbtree.txt	trivial: rbtree.txt: fix rb_entry() parameters in sample code	16 years ago
rfkill.txt	rfkill: improve docs	16 years ago
robust-futex-ABI.txt	futex: documentation: fix inconsistent description of futex list_op_pending	16 years ago
robust-futexes.txt	…
rt-mutex-design.txt	…
rt-mutex.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
sgi-visws.txt	…
slow-work.txt	Document the slow work thread pool	16 years ago
sparse.txt	Documentation: explain the difference between __bitwise and __bitwise__	16 years ago
spinlocks.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	…
svga.txt	…
sysfs-rules.txt	Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense	16 years ago
sysrq.txt	Merge branch 'tracing/core-v2' into tracing-for-linus	16 years ago
tomoyo.txt	tomoyo: add Documentation/tomoyo.txt	16 years ago
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
video-output.txt	…
volatile-considered-harmful.txt	…
voyager.txt	…
zorro.txt	…