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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-04-02 16:17:17 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-05-10 11:08:34 -0700 |
| commit | bbad937983147c017c25406860287cb94da9af7c (patch) | |
| tree | 57311598c360b92b189c7ec337146e4bc779c73d /kernel/rcutiny.c | |
| parent | 25502a6c13745f4650cc59322bd198194f55e796 (diff) | |
| download | lwn-bbad937983147c017c25406860287cb94da9af7c.tar.gz lwn-bbad937983147c017c25406860287cb94da9af7c.zip | |
rcu: slim down rcutiny by removing rcu_scheduler_active and friends
TINY_RCU does not need rcu_scheduler_active unless CONFIG_DEBUG_LOCK_ALLOC.
So conditionally compile rcu_scheduler_active in order to slim down
rcutiny a bit more. Also gets rid of an EXPORT_SYMBOL_GPL, which is
responsible for most of the slimming.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutiny.c')
| -rw-r--r-- | kernel/rcutiny.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index d9f8a623c9fa..b1804ff83d5e 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -54,6 +54,11 @@ static struct rcu_ctrlblk rcu_bh_ctrlblk = { .curtail = &rcu_bh_ctrlblk.rcucblist, }; +#ifdef CONFIG_DEBUG_LOCK_ALLOC +int rcu_scheduler_active __read_mostly; +EXPORT_SYMBOL_GPL(rcu_scheduler_active); +#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */ + #ifdef CONFIG_NO_HZ static long rcu_dynticks_nesting = 1; @@ -276,3 +281,5 @@ void __init rcu_init(void) { open_softirq(RCU_SOFTIRQ, rcu_process_callbacks); } + +#include "rcutiny_plugin.h" |