diff options
Diffstat (limited to 'include/linux/rcupreempt.h')
| -rw-r--r-- | include/linux/rcupreempt.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h index 01152ed532c..d038aa6e5ee 100644 --- a/include/linux/rcupreempt.h +++ b/include/linux/rcupreempt.h @@ -87,15 +87,15 @@ DECLARE_PER_CPU(long, dynticks_progress_counter); static inline void rcu_enter_nohz(void) { + smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */ __get_cpu_var(dynticks_progress_counter)++; WARN_ON(__get_cpu_var(dynticks_progress_counter) & 0x1); - mb(); } static inline void rcu_exit_nohz(void) { - mb(); __get_cpu_var(dynticks_progress_counter)++; + smp_mb(); /* CPUs seeing ++ must see later RCU read-side crit sects */ WARN_ON(!(__get_cpu_var(dynticks_progress_counter) & 0x1)); } |