diff options
| -rw-r--r-- | include/linux/cpuset.h | 2 | ||||
| -rw-r--r-- | kernel/cgroup/cpuset.c | 7 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index a98d3330385c..1c49ffd2ca9b 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -18,6 +18,8 @@ #include <linux/mmu_context.h> #include <linux/jump_label.h> +extern bool lockdep_is_cpuset_held(void); + #ifdef CONFIG_CPUSETS /* diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 3afa72f8d579..5e2e3514c22e 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -283,6 +283,13 @@ void cpuset_full_unlock(void) cpus_read_unlock(); } +#ifdef CONFIG_LOCKDEP +bool lockdep_is_cpuset_held(void) +{ + return lockdep_is_held(&cpuset_mutex); +} +#endif + static DEFINE_SPINLOCK(callback_lock); void cpuset_callback_lock_irq(void) |