Patch "sched/preempt, powerpc, kvm: Use need_resched() instead of should_resched()" has been added to the 4.2-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
sched/preempt, powerpc, kvm: Use need_resched() instead of should_resched()
to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sched-preempt-powerpc-kvm-use-need_resched-instead-of-should_resched.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
c56dadf39761a6157239cac39e3988998c994f98Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <[email protected]>
Date: Wed, 15 Jul 2015 12:52:03 +0300
Subject: sched/preempt, powerpc, kvm: Use need_resched() instead of should_resched()
From: Konstantin Khlebnikov <[email protected]>
commit c56dadf39761a6157239cac39e3988998c994f98 upstream.
Function should_resched() is equal to (!preempt_count() && need_resched()). In preemptive kernel preempt_count here is non-zero because of vc->lock.
--- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
arch/powerpc/kvm/book3s_hv.c +1 -1
@@ -2178,7 +2178,7 @@ static int kvmppc_run_vcpu(struct kvm_ru 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);
Patches currently in stable-queue which might be from [email protected] are
queue-4.2/sched-preempt-fix-cond_resched_lock-and-cond_resched_softirq.patch queue-4.2/sched-preempt-xen-use-need_resched-instead-of-should_resched.patch queue-4.2/sched-preempt-powerpc-kvm-use-need_resched-instead-of-should_resched.patch