From 5cc379a42acd7104747077db7aaf4b01115ee484 Mon Sep 17 00:00:00 2001 From: "Joel Fernandes (Google)" Date: Tue, 25 Sep 2018 11:25:57 -0700 Subject: doc: Update information about resched_cpu Since commit fced9c8cfe6b ("rcu: Avoid resched_cpu() when rescheduling the current CPU"), resched_cpu is not directly called from sync_sched_exp_handler. Update the documentation about the same. Signed-off-by: Joel Fernandes (Google) Cc: Signed-off-by: Paul E. McKenney --- .../RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation/RCU') diff --git a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html index e62c7c34a369..8e4f873b979f 100644 --- a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html +++ b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html @@ -160,9 +160,9 @@ was in flight. If the CPU is idle, then sync_sched_exp_handler() reports the quiescent state. -

-Otherwise, the handler invokes resched_cpu(), which forces -a future context switch. +

Otherwise, the handler forces a future context switch by setting the +NEED_RESCHED flag of the current task's thread flag and the CPU preempt +counter. At the time of the context switch, the CPU reports the quiescent state. Should the CPU go offline first, it will report the quiescent state at that time. -- cgit v1.2.3