Paul E. McKenney 616c310e83 rcu: Move PREEMPT_RCU preemption to switch_to() invocation ...

Currently, PREEMPT_RCU readers are enqueued upon entry to the scheduler.
This is inefficient because enqueuing is required only if there is a
context switch, and entry to the scheduler does not guarantee a context
switch.

The commit therefore moves the enqueuing to immediately precede the
call to switch_to() from the scheduler.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>

2012-05-02 14:43:23 -07:00

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alpha

alpha: fix build failures from system.h dismemberment

2012-04-13 13:15:16 -04:00

arm

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2012-04-21 12:45:52 -07:00

avr32

avr32: fix nop compile fails from system.h split up

2012-04-04 08:23:44 -07:00

blackfin

blackfin: update defconfig for bf527-ezkit

2012-04-06 10:25:03 +08:00

c6x

irq: Kill pointless irqd_to_hw export

2012-04-10 22:39:17 -06:00

cris

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frv

frv: fix warnings in mb93090-mb00/pci-dma.c about implicit EXPORT_SYMBOL

2012-04-02 14:41:26 -07:00

h8300

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hexagon

Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

2012-04-04 17:13:43 -07:00

ia64

kill mm argument of vm_munmap()

2012-04-21 01:58:20 -04:00

m32r

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m68k

m68knommu: make sure 2nd FEC eth interface pins are enabled on 5275 ColdFire

2012-04-17 17:06:34 +10:00

microblaze

Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

2012-04-04 17:13:43 -07:00

mips

Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

2012-04-04 17:13:43 -07:00

mn10300

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openrisc

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parisc

parisc: fix missing cmpxchg file error from system.h split

2012-04-02 14:41:26 -07:00

powerpc

Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

2012-04-12 12:49:56 -07:00

s390

[S390] Fix compile error in swab.h

2012-04-11 14:28:26 +02:00

score

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sh

Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

2012-04-07 09:52:46 -07:00

sparc

sparc32,leon: add notify_cpu_starting()

2012-04-21 16:35:06 -04:00

tile

VM: add "vm_mmap()" helper function

2012-04-20 17:29:13 -07:00

um

rcu: Move PREEMPT_RCU preemption to switch_to() invocation

2012-05-02 14:43:23 -07:00

unicore32

Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

2012-04-04 17:13:43 -07:00

x86

kill mm argument of vm_munmap()

2012-04-21 01:58:20 -04:00

xtensa

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.gitignore

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Kconfig

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