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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-08-22 13:56:51 -0700
committerIngo Molnar <mingo@elte.hu>2009-08-23 10:32:39 +0200
commita157229cabd6dd8cfa82525fc9bf730c94cc9ac2 (patch)
tree886013efc2f25dab915640acf46151fac7ae57b4 /kernel/timer.c
parent22f00b69f6a7e1e18e821979a23e8307c2de9888 (diff)
downloadlinux-a157229cabd6dd8cfa82525fc9bf730c94cc9ac2.tar.bz2
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 'kernel/timer.c')
-rw-r--r--kernel/timer.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index a7f07d5a6241..a3d25f415019 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1156,8 +1156,7 @@ void update_process_times(int user_tick)
/* Note: this timer irq context must be accounted for as well. */
account_process_tick(p, user_tick);
run_local_timers();
- if (rcu_pending(cpu))
- rcu_check_callbacks(cpu, user_tick);
+ rcu_check_callbacks(cpu, user_tick);
printk_tick();
scheduler_tick();
run_posix_cpu_timers(p);