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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-10-07 16:05:21 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-10-07 16:05:21 -0700 |
| commit | d2856b046d2ce2bfb664727cb8671ad0e371bd6c (patch) | |
| tree | cb9056e8fb6a3038db6629781dfefbac8387d0c2 /kernel/cpu.c | |
| parent | 7f5f873c6a0772970d5fee1f364231207051ecd8 (diff) | |
| parent | 338b0f760e84676130c6e4d8268cb8c923b38c8c (diff) | |
| download | lwn-d2856b046d2ce2bfb664727cb8671ad0e371bd6c.tar.gz lwn-d2856b046d2ce2bfb664727cb8671ad0e371bd6c.zip | |
Merge branches 'fixes.2015.10.06a' and 'exp.2015.10.07a' into HEAD
exp.2015.10.07a: Reduce OS jitter of RCU-sched expedited grace periods.
fixes.2015.10.06a: Miscellaneous fixes.
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 82cf9dff4295..14a9cdf8abe9 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -102,19 +102,6 @@ void get_online_cpus(void) } EXPORT_SYMBOL_GPL(get_online_cpus); -bool try_get_online_cpus(void) -{ - if (cpu_hotplug.active_writer == current) - return true; - if (!mutex_trylock(&cpu_hotplug.lock)) - return false; - cpuhp_lock_acquire_tryread(); - atomic_inc(&cpu_hotplug.refcount); - mutex_unlock(&cpu_hotplug.lock); - return true; -} -EXPORT_SYMBOL_GPL(try_get_online_cpus); - void put_online_cpus(void) { int refcount; |