diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-26 17:48:49 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 17:48:49 +0200 |
commit | c3cc99ff5d24e2eeaf7ec2032e720681916990e3 (patch) | |
tree | c3e74171bbbd2adde9d60b9db1c440415c8d2831 /include/linux/rcupreempt.h | |
parent | 38ffbe66d59051fd9cfcfc8545f164700e2fa3bc (diff) | |
parent | 024e8ac04453b3525448c31ef39848cf675ba6db (diff) |
Merge branch 'linus' into x86/xen
Diffstat (limited to 'include/linux/rcupreempt.h')
-rw-r--r-- | include/linux/rcupreempt.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h index f04b64eca63..0967f03b070 100644 --- a/include/linux/rcupreempt.h +++ b/include/linux/rcupreempt.h @@ -115,16 +115,21 @@ DECLARE_PER_CPU(struct rcu_dyntick_sched, rcu_dyntick_sched); static inline void rcu_enter_nohz(void) { + static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1); + smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */ __get_cpu_var(rcu_dyntick_sched).dynticks++; - WARN_ON(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1); + WARN_ON_RATELIMIT(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1, &rs); } static inline void rcu_exit_nohz(void) { + static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1); + smp_mb(); /* CPUs seeing ++ must see later RCU read-side crit sects */ __get_cpu_var(rcu_dyntick_sched).dynticks++; - WARN_ON(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1)); + WARN_ON_RATELIMIT(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1), + &rs); } #else /* CONFIG_NO_HZ */ |