Oleg Nesterov e2336f6e51 sched: Kill task_preempt_count() ...

task_preempt_count() is pointless if preemption counter is per-cpu,
currently this is x86 only. It is only valid if the task is not
running, and even in this case the only info it can provide is the
state of PREEMPT_ACTIVE bit.

Change its single caller to check p->on_rq instead, this should be
the same if p->state != TASK_RUNNING, and kill this helper.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Alexander Graf <agraf@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Link: http://lkml.kernel.org/r/20141008183348.GC17495@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2014-10-28 10:47:56 +01:00

..

alpha

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

arc

Merge tag 'remove-weak-declarations' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

2014-10-23 15:04:27 -07:00

arm

Merge tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2014-10-26 11:35:51 -07:00

arm64

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2014-10-24 12:48:04 -07:00

avr32

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2014-10-18 18:11:04 -07:00

blackfin

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

c6x

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cris

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frv

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hexagon

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ia64

Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-23 14:45:09 -07:00

m32r

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m68k

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metag

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

microblaze

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

mips

MIPS: SEAD3: Fix I2C device registration.

2014-10-24 13:34:42 +02:00

mn10300

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openrisc

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

parisc

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

powerpc

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

2014-10-21 07:48:56 -07:00

s390

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2014-10-21 07:47:54 -07:00

score

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sh

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

sparc

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2014-10-24 12:45:47 -07:00

tile

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

um

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

unicore32

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x86

sched: Kill task_preempt_count()

2014-10-28 10:47:56 +01:00

xtensa

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

.gitignore

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Kconfig

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