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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-24 09:47:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-24 09:47:32 -0700 |
| commit | d88f48e12821ab4b2244124d50ac094568f48db5 (patch) | |
| tree | 4eb16b46898190aac33ed6125a9a0e734d5be10e /arch/x86/kernel/tsc.c | |
| parent | be53f58fa0fcd97c62a84f2eb98cff528f8b2443 (diff) | |
| parent | 9da77666d6975219281fd400eb9608a047337414 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- fix hotplug bugs
- fix irq live lock
- fix various topology handling bugs
- fix APIC ACK ordering
- fix PV iopl handling
- fix speling
- fix/tweak memcpy_mcsafe() return value
- fix fbcon bug
- remove stray prototypes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/msr: Remove unused native_read_tscp()
x86/apic: Remove declaration of unused hw_nmi_is_cpu_stuck
x86/oprofile/nmi: Add missing hotplug FROZEN handling
x86/hpet: Use proper mask to modify hotplug action
x86/apic/uv: Fix the hotplug notifier
x86/apb/timer: Use proper mask to modify hotplug action
x86/topology: Use total_cpus not nr_cpu_ids for logical packages
x86/topology: Fix Intel HT disable
x86/topology: Fix logical package mapping
x86/irq: Cure live lock in fixup_irqs()
x86/tsc: Prevent NULL pointer deref in calibrate_delay_is_known()
x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt()
x86/iopl: Fix iopl capability check on Xen PV
x86/iopl/64: Properly context-switch IOPL on Xen PV
selftests/x86: Add an iopl test
x86/mm, x86/mce: Fix return type/value for memcpy_mcsafe()
x86/video: Don't assume all FB devices are PCI devices
arch/x86/irq: Purge useless handler declarations from hw_irq.h
x86: Fix misspellings in comments
Diffstat (limited to 'arch/x86/kernel/tsc.c')
| -rw-r--r-- | arch/x86/kernel/tsc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 56380440d862..c9c4c7ce3eb2 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -881,7 +881,7 @@ void tsc_restore_sched_clock_state(void) local_irq_save(flags); /* - * We're comming out of suspend, there's no concurrency yet; don't + * We're coming out of suspend, there's no concurrency yet; don't * bother being nice about the RCU stuff, just write to both * data fields. */ @@ -1306,11 +1306,15 @@ void __init tsc_init(void) unsigned long calibrate_delay_is_known(void) { int sibling, cpu = smp_processor_id(); + struct cpumask *mask = topology_core_cpumask(cpu); if (!tsc_disabled && !cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC)) return 0; - sibling = cpumask_any_but(topology_core_cpumask(cpu), cpu); + if (!mask) + return 0; + + sibling = cpumask_any_but(mask, cpu); if (sibling < nr_cpu_ids) return cpu_data(sibling).loops_per_jiffy; return 0; |