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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-30 10:15:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-30 10:15:30 -0800
commitd772794637451c424729dd71690d7ac158523108 (patch)
tree1ac5db7ba0a237e519e6d123e1f95d79dc4baa34 /kernel/sched/core.c
parentc1488798adaf71461c5b679e5b54c2963be5e61c (diff)
parent475c5ee193fd682c6383b5e418e65e46a477d176 (diff)
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar: "The main RCU changes in this cycle were: - Updates to use cond_resched() instead of cond_resched_rcu_qs() where feasible (currently everywhere except in kernel/rcu and in kernel/torture.c). Also a couple of fixes to avoid sending IPIs to offline CPUs. - Updates to simplify RCU's dyntick-idle handling. - Updates to remove almost all uses of smp_read_barrier_depends() and read_barrier_depends(). - Torture-test updates. - Miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits) torture: Save a line in stutter_wait(): while -> for torture: Eliminate torture_runnable and perf_runnable torture: Make stutter less vulnerable to compilers and races locking/locktorture: Fix num reader/writer corner cases locking/locktorture: Fix rwsem reader_delay torture: Place all torture-test modules in one MAINTAINERS group rcutorture/kvm-build.sh: Skip build directory check rcutorture: Simplify functions.sh include path rcutorture: Simplify logging rcutorture/kvm-recheck-*: Improve result directory readability check rcutorture/kvm.sh: Support execution from any directory rcutorture/kvm.sh: Use consistent help text for --qemu-args rcutorture/kvm.sh: Remove unused variable, `alldone` rcutorture: Remove unused script, config2frag.sh rcutorture/configinit: Fix build directory error message rcutorture: Preempt RCU-preempt readers more vigorously torture: Reduce #ifdefs for preempt_schedule() rcu: Remove have_rcu_nocb_mask from tree_plugin.h rcu: Add comment giving debug strategy for double call_rcu() tracing, rcu: Hide trace event rcu_nocb_wake when not used ...
Diffstat (limited to 'kernel/sched/core.c')
-rw-r--r--kernel/sched/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a7bf32aabfda..5a31a85bbd84 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -508,7 +508,8 @@ void resched_cpu(int cpu)
unsigned long flags;
raw_spin_lock_irqsave(&rq->lock, flags);
- resched_curr(rq);
+ if (cpu_online(cpu) || cpu == smp_processor_id())
+ resched_curr(rq);
raw_spin_unlock_irqrestore(&rq->lock, flags);
}