diff options
author | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
commit | 5bd3ef84d73c2ea7b4babbad060909753c4828d4 (patch) | |
tree | fdf2bafb48ae1ed03175f6c77a7548a181e69ee9 /kernel/rcuclassic.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/rcuclassic.c')
-rw-r--r-- | kernel/rcuclassic.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c index 654c640a6b9..0f2b0b31130 100644 --- a/kernel/rcuclassic.c +++ b/kernel/rcuclassic.c @@ -65,6 +65,7 @@ static struct rcu_ctrlblk rcu_ctrlblk = { .lock = __SPIN_LOCK_UNLOCKED(&rcu_ctrlblk.lock), .cpumask = CPU_BITS_NONE, }; + static struct rcu_ctrlblk rcu_bh_ctrlblk = { .cur = -300, .completed = -300, @@ -73,8 +74,26 @@ static struct rcu_ctrlblk rcu_bh_ctrlblk = { .cpumask = CPU_BITS_NONE, }; -DEFINE_PER_CPU(struct rcu_data, rcu_data) = { 0L }; -DEFINE_PER_CPU(struct rcu_data, rcu_bh_data) = { 0L }; +static DEFINE_PER_CPU(struct rcu_data, rcu_data); +static 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; +} + +void rcu_bh_qsctr_inc(int cpu) +{ + struct rcu_data *rdp = &per_cpu(rcu_bh_data, cpu); + rdp->passed_quiesc = 1; +} static int blimit = 10; static int qhimark = 10000; |