sched/preempt, powerpc, kvm: Use need_resched() instead of should_resched()
Function should_resched() is equal to (!preempt_count() && need_resched()). In preemptive kernel preempt_count here is non-zero because of vc->lock. Signed-off-by: NKonstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Graf <agraf@suse.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150715095203.12246.72922.stgit@buzzSigned-off-by: NIngo Molnar <mingo@kernel.org>
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