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authorLinus Torvalds <torvalds@linux-foundation.org>2019-02-03 09:02:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-03 09:02:03 -0800
commitcc6810e36bd875f197fcd6c74ad01f48090ecc05 (patch)
tree3f0624fb3fef50dca9d71334d72543fd5c2e0643 /kernel/sched
parent58f6d4287af751a75b24f4d32e6e1b077146ab18 (diff)
parentb284909abad48b07d3071a9fc9b5692b3e64914b (diff)
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull cpu hotplug fixes from Thomas Gleixner: "Two fixes for the cpu hotplug machinery: - Replace the overly clever 'SMT disabled by BIOS' detection logic as it breaks KVM scenarios and prevents speculation control updates when the Hyperthreads are brought online late after boot. - Remove a redundant invocation of the speculation control update function" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM x86/speculation: Remove redundant arch_smt_update() invocation
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/fair.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 50aa2aba69bd..310d0637fe4b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5980,6 +5980,7 @@ static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
#ifdef CONFIG_SCHED_SMT
DEFINE_STATIC_KEY_FALSE(sched_smt_present);
+EXPORT_SYMBOL_GPL(sched_smt_present);
static inline void set_idle_cores(int cpu, int val)
{