diff options
| author | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
| commit | 5bd3ef84d73c2ea7b4babbad060909753c4828d4 (patch) | |
| tree | fdf2bafb48ae1ed03175f6c77a7548a181e69ee9 /kernel/rcutree.c | |
| parent | 0658c16056660886ea2f35c4f038be70a94b1532 (diff) | |
| parent | 6d25b688ecc488753af3c9e6f6a9a575b863cf37 (diff) | |
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge
Diffstat (limited to 'kernel/rcutree.c')
| -rw-r--r-- | kernel/rcutree.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 97ce31579ec..7f326692257 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -78,6 +78,26 @@ DEFINE_PER_CPU(struct rcu_data, rcu_data); struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state); DEFINE_PER_CPU(struct rcu_data, rcu_bh_data); +/* + * Increment the quiescent state counter. + * The counter is a bit degenerated: We do not need to know + * how many quiescent states passed, just if there was at least + * one since the start of the grace period. Thus just a flag. + */ +void rcu_qsctr_inc(int cpu) +{ + struct rcu_data *rdp = &per_cpu(rcu_data, cpu); + rdp->passed_quiesc = 1; + rdp->passed_quiesc_completed = rdp->completed; +} + +void rcu_bh_qsctr_inc(int cpu) +{ + struct rcu_data *rdp = &per_cpu(rcu_bh_data, cpu); + rdp->passed_quiesc = 1; + rdp->passed_quiesc_completed = rdp->completed; +} + #ifdef CONFIG_NO_HZ DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = { .dynticks_nesting = 1, |