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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-08-23 00:56:51 +0400
committerIngo Molnar <mingo@elte.hu>2009-08-23 12:32:39 +0400
commita157229cabd6dd8cfa82525fc9bf730c94cc9ac2 (patch)
tree886013efc2f25dab915640acf46151fac7ae57b4 /include/linux
parent22f00b69f6a7e1e18e821979a23e8307c2de9888 (diff)
downloadlinux-a157229cabd6dd8cfa82525fc9bf730c94cc9ac2.tar.xz
rcu: Simplify rcu_pending()/rcu_check_callbacks() API
All calls from outside RCU are of the form: if (rcu_pending(cpu)) rcu_check_callbacks(cpu, user); This is silly, instead we put a call to rcu_pending() in rcu_check_callbacks(), and then make the outside calls be to rcu_check_callbacks(). This cuts down on the code a bit and also gives the compiler a better chance of optimizing. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: akpm@linux-foundation.org Cc: mathieu.desnoyers@polymtl.ca Cc: josht@linux.vnet.ibm.com Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org LKML-Reference: <125097461311-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/rcupreempt.h1
-rw-r--r--include/linux/rcutree.h1
2 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h
index 6c9dd9cf8b8e..aff4772fb49e 100644
--- a/include/linux/rcupreempt.h
+++ b/include/linux/rcupreempt.h
@@ -66,7 +66,6 @@ extern void call_rcu_sched(struct rcu_head *head,
extern void __rcu_read_lock(void);
extern void __rcu_read_unlock(void);
-extern int rcu_pending(int cpu);
extern int rcu_needs_cpu(int cpu);
#define __rcu_read_lock_bh() { rcu_read_lock(); local_bh_disable(); }
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 8a0222ce3b13..c739d90f5e68 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -33,7 +33,6 @@
extern void rcu_sched_qs(int cpu);
extern void rcu_bh_qs(int cpu);
-extern int rcu_pending(int cpu);
extern int rcu_needs_cpu(int cpu);
static inline void __rcu_read_lock(void)