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| author |   Thomas Gleixner <tglx@linutronix.de> | 2017-05-24 10:15:13 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-26 10:10:35 +0200 |
| commit | ade3f680a76b474d9f5375a9b1d100ee787bf469 (patch) | |
| tree | 6f56a7f8159ca6c0675c98626a426e630637ad86 /include/linux/cpu.h | |
| parent | cpu/hotplug: Provide cpus_read|write_[un]lock() (diff) | |
| download | linux-dev-ade3f680a76b474d9f5375a9b1d100ee787bf469.tar.xz linux-dev-ade3f680a76b474d9f5375a9b1d100ee787bf469.zip | |
cpu/hotplug: Provide lockdep_assert_cpus_held()
Provide a stub function which can be used in places where existing
get_online_cpus() calls are moved to call sites.
This stub is going to be filled by the final conversion of the hotplug
locking mechanism to a percpu rwsem.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170524081547.161282442@linutronix.de
Diffstat (limited to 'include/linux/cpu.h')
| -rw-r--r-- | include/linux/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 055876003914..af4d660798e5 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -103,6 +103,7 @@ extern void cpus_write_lock(void); extern void cpus_write_unlock(void); extern void cpus_read_lock(void); extern void cpus_read_unlock(void); +static inline void lockdep_assert_cpus_held(void) { } extern void cpu_hotplug_disable(void); extern void cpu_hotplug_enable(void); void clear_tasks_mm_cpumask(int cpu); @@ -114,6 +115,7 @@ static inline void cpus_write_lock(void) { } static inline void cpus_write_unlock(void) { } static inline void cpus_read_lock(void) { } static inline void cpus_read_unlock(void) { } +static inline void lockdep_assert_cpus_held(void) { } static inline void cpu_hotplug_disable(void) { } static inline void cpu_hotplug_enable(void) { } #endif /* !CONFIG_HOTPLUG_CPU */ |