Patch "sched/preempt, xen: Use need_resched() instead of should_resched()" has been added to the 4.1-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
sched/preempt, xen: Use need_resched() instead of should_resched()
to the 4.1-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-xen-use-need_resched-instead-of-should_resched.patch
and it can be found in the queue-4.1 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
0fa2f5cb2b0ecd8d56baa51f35f09aab234eb0bfMon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <[email protected]>
Date: Wed, 15 Jul 2015 12:52:01 +0300
Subject: sched/preempt, xen: Use need_resched() instead of should_resched()
From: Konstantin Khlebnikov <[email protected]>
commit 0fa2f5cb2b0ecd8d56baa51f35f09aab234eb0bf upstream.
This code is used only when CONFIG_PREEMPT=n and only in non-atomic context:xen_in_preemptible_hcall is set only in privcmd_ioctl_hypercall(). Thus preempt_count is zero and should_resched() is equal to need_resched().
--- drivers/xen/preempt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/xen/preempt.c +1 -1
@@ -31,7 +31,7 @@ EXPORT_SYMBOL_GPL(xen_in_preemptible_hca asmlinkage __visible void xen_maybe_preempt_hcall(void) {if (unlikely (__this_cpu_read (xen_in_preemptible_hcall) - &&should_resched ())) { + &&need_resched ())) {/* * Clear flag as we may be rescheduled on a different * cpu.
Patches currently in stable-queue which might be from [email protected] are
queue-4.1/ovs-do-not-allocate-memory-from-offline-numa-node.patch queue-4.1/sched-preempt-xen-use-need_resched-instead-of-should_resched.patch queue-4.1/sched-preempt-fix-cond_resched_lock-and-cond_resched_softirq.patch