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| author |   Ingo Molnar <mingo@elte.hu> | 2009-03-13 03:20:49 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-03 12:23:02 +0200 |
| commit | b1f77b0581b8fd837acb4a973f7d5496cae6efee (patch) | |
| tree | 4faa2e4285c31dd70d1d20b4172d1eed55ba7330 /kernel/rcutree.c | |
| parent | kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c (diff) | |
| download | linux-dev-b1f77b0581b8fd837acb4a973f7d5496cae6efee.tar.xz linux-dev-b1f77b0581b8fd837acb4a973f7d5496cae6efee.zip | |
kmemtrace, rcu: fix linux/rcutree.h and linux/rcuclassic.h dependencies
Impact: build fix for all non-x86 architectures
We want to remove percpu.h from rcuclassic.h/rcutree.h (for upcoming
kmemtrace changes) but that would break the DECLARE_PER_CPU based
declarations in these files.
Move the quiescent counter management functions to their respective
RCU implementation .c files - they were slightly above the inlining
limit anyway.
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: paulmck@linux.vnet.ibm.com
LKML-Reference: <1237898630.25315.83.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcutree.c')
| -rw-r--r-- | kernel/rcutree.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 97ce31579ec0..a2015edfe167 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -72,11 +72,31 @@ EXPORT_SYMBOL_GPL(rcu_lock_map); .n_force_qs_ngp = 0, \ } -struct rcu_state rcu_state = RCU_STATE_INITIALIZER(rcu_state); -DEFINE_PER_CPU(struct rcu_data, rcu_data); +static struct rcu_state rcu_state = RCU_STATE_INITIALIZER(rcu_state); +static 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); +static struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state); +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; + 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) = { |