diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-05-20 09:02:28 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-05-20 09:02:28 +0200 |
| commit | 521c180874dae86f675d23c4eade4dba8b1f2cc8 (patch) | |
| tree | 7509303da3a9a1b40a26f6811f321c89cd31737b /kernel/rcuclassic.c | |
| parent | f1a11e0576c7a73d759d05d776692b2b2d37172b (diff) | |
| parent | 64d1304a64477629cb16b75491a77bafe6f86963 (diff) | |
Merge branch 'core/urgent' into core/futexes
Merge reason: this branch was on an pre -rc1 base, merge it up to -rc6+
to get the latest upstream fixes.
Conflicts:
kernel/futex.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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; |