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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-10-21 12:50:04 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-11-03 19:20:34 -0800
commit38200cf24702e5d79ce6c8f4c62036c41845c62d (patch)
tree840642332deb3f091142c78994de1f8db73b4f8c /kernel/rcu/tree.c
parent86aea0e6e7d571a9452082a7198d0603cc5dd965 (diff)
rcu: Remove "cpu" argument to rcu_note_context_switch()
The "cpu" argument to rcu_note_context_switch() is always the current CPU, so drop it. This in turn allows the "cpu" argument to rcu_preempt_note_context_switch() to be removed, which allows the sole use of "cpu" in both functions to be replaced with a this_cpu_ptr(). Again, the anticipated cross-CPU uses of these functions has been replaced by NO_HZ_FULL.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.c')
-rw-r--r--kernel/rcu/tree.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 1af5e2cdcbeb..b591f1459240 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -286,11 +286,11 @@ static void rcu_momentary_dyntick_idle(void)
* and requires special handling for preemptible RCU.
* The caller must have disabled preemption.
*/
-void rcu_note_context_switch(int cpu)
+void rcu_note_context_switch(void)
{
trace_rcu_utilization(TPS("Start context switch"));
rcu_sched_qs();
- rcu_preempt_note_context_switch(cpu);
+ rcu_preempt_note_context_switch();
if (unlikely(raw_cpu_read(rcu_sched_qs_mask)))
rcu_momentary_dyntick_idle();
trace_rcu_utilization(TPS("End context switch"));