[PATCH tip/core/rcu 0/2] smp_call_function updates for v5.11
From: Paul E. McKenney
Date: Thu Nov 05 2020 - 18:00:43 EST
Hello!
This series prevents /proc/cpuinfo from piling up quite so many redundant
IPIs, and also avoids IPIing idle CPUs.
1. Avoid cpuinfo-induced IPI pileups.
2. Avoid cpuinfo-induced IPIing of idle CPUs.
Thanx, Paul
------------------------------------------------------------------------
arch/x86/kernel/cpu/aperfmperf.c | 16 +++++++++++++++-
include/linux/rcutiny.h | 2 ++
include/linux/rcutree.h | 1 +
kernel/rcu/tree.c | 8 ++++++++
4 files changed, 26 insertions(+), 1 deletion(-)