linux-kernel - [PATCH 0/2] sched/isolation: Prep work for pcp cache draining isolation

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Date:   Sat,  4 Feb 2023 00:24:07 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Frederic Weisbecker <frederic@...nel.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Michal Hocko <mhocko@...e.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Leonardo <leobras@...hat.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Muchun Song <muchun.song@...ux.dev>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>, cgroups@...r.kernel.org,
        linux-mm@...ck.org
Subject: [PATCH 0/2] sched/isolation: Prep work for pcp cache draining isolation

For reference: https://lore.kernel.org/lkml/20230125073502.743446-1-leobras@redhat.com/
And the latest proposal: https://lore.kernel.org/lkml/Y90mZQhW89HtYfT9@dhcp22.suse.cz/

Pcp cache draining isolation needs a function that abstracts checking
if a CPU is isolated through isolcpus= or nohz_full=. Take advantage
of that to do some cleanups.

Frederic Weisbecker (2):
  sched/isolation: Merge individual nohz_full features into a common
    housekeeping flag
  sched/isolation: Add cpu_is_isolated() API

 arch/x86/kvm/x86.c              |  2 +-
 drivers/char/random.c           |  2 +-
 drivers/pci/pci-driver.c        |  2 +-
 include/linux/sched/isolation.h | 13 +++++++------
 include/net/ip_vs.h             |  4 ++--
 kernel/cpu.c                    |  4 ++--
 kernel/kthread.c                |  4 ++--
 kernel/rcu/tasks.h              |  2 +-
 kernel/rcu/tree_plugin.h        |  6 +++---
 kernel/sched/core.c             | 12 ++++++------
 kernel/sched/fair.c             |  6 +++---
 kernel/sched/isolation.c        | 22 ++++++----------------
 kernel/watchdog.c               |  2 +-
 kernel/workqueue.c              |  2 +-
 net/core/net-sysfs.c            |  2 +-
 net/netfilter/ipvs/ip_vs_ctl.c  |  2 +-
 16 files changed, 39 insertions(+), 48 deletions(-)

-- 
2.34.1