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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-10-22 22:07:37 (GMT) |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-11-04 03:20:56 (GMT) |
| commit | 8fa7845df539105a8962c3173c866483da74ff6d (patch) | |
| tree | 966b4fa33d078e0148b486fe6b40d8cfb04e89ec /kernel/rcu/tree_plugin.h | |
| parent | 198bbf8127dd2dec6661622981a4e1f9b8f967b7 (diff) | |
| download | linux-8fa7845df539105a8962c3173c866483da74ff6d.tar.xz | |
rcu: Remove "cpu" argument to rcu_cleanup_after_idle()
The "cpu" argument to rcu_cleanup_after_idle() is always the current
CPU, so drop it. This moves the smp_processor_id() from the caller to
rcu_cleanup_after_idle(), saving argument-passing overhead. Again,
the anticipated cross-CPU uses of these functions has been replaced
by NO_HZ_FULL.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 5e68ab5..2443282 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1523,7 +1523,7 @@ int rcu_needs_cpu(unsigned long *delta_jiffies) * Because we do not have RCU_FAST_NO_HZ, don't bother cleaning up * after it. */ -static void rcu_cleanup_after_idle(int cpu) +static void rcu_cleanup_after_idle(void) { } @@ -1731,10 +1731,10 @@ static void rcu_prepare_for_idle(void) * any grace periods that elapsed while the CPU was idle, and if any * callbacks are now ready to invoke, initiate invocation. */ -static void rcu_cleanup_after_idle(int cpu) +static void rcu_cleanup_after_idle(void) { #ifndef CONFIG_RCU_NOCB_CPU_ALL - if (rcu_is_nocb_cpu(cpu)) + if (rcu_is_nocb_cpu(smp_processor_id())) return; if (rcu_try_advance_all_cbs()) invoke_rcu_core(); |