linux-kernel - [tip:sched/core] sched/preempt, powerpc, kvm: Use need_resched() instead of should

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Message-ID: <tip-c56dadf39761a6157239cac39e3988998c994f98@git.kernel.org>
Date:	Mon, 3 Aug 2015 10:08:00 -0700
From:	tip-bot for Konstantin Khlebnikov <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	efault@....de, david.vrabel@...rix.com,
	linux-kernel@...r.kernel.org, hpa@...or.com,
	boris.ostrovsky@...cle.com, paulus@...ba.org, agraf@...e.de,
	mingo@...nel.org, tglx@...utronix.de,
	torvalds@...ux-foundation.org, khlebnikov@...dex-team.ru,
	peterz@...radead.org
Subject: [tip:sched/core] sched/preempt, powerpc, kvm: Use need_resched()
  instead of should_resched()

Commit-ID:  c56dadf39761a6157239cac39e3988998c994f98
Gitweb:     http://git.kernel.org/tip/c56dadf39761a6157239cac39e3988998c994f98
Author:     Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
AuthorDate: Wed, 15 Jul 2015 12:52:03 +0300
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 3 Aug 2015 12:21:24 +0200

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: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Alexander Graf <agraf@...e.de>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/20150715095203.12246.72922.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/powerpc/kvm/book3s_hv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 68d067a..a9f753f 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2178,7 +2178,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 		vc->runner = vcpu;
 		if (n_ceded == vc->n_runnable) {
 			kvmppc_vcore_blocked(vc);
-		} else if (should_resched()) {
+		} else if (need_resched()) {
 			vc->vcore_state = VCORE_PREEMPT;
 			/* Let something else run */
 			cond_resched_lock(&vc->lock);
--
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