From: Frederic Weisbecker <frederic@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Tejun Heo <tj@kernel.org>, Juri Lelli <juri.lelli@redhat.com>,
Alex Belits <abelits@marvell.com>, Nitesh Lal <nilal@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Nicolas Saenz <nsaenzju@redhat.com>,
Christoph Lameter <cl@gentwo.de>,
Marcelo Tosatti <mtosatti@redhat.com>,
Zefan Li <lizefan.x@bytedance.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
"Paul E . McKenney" <paulmck@kernel.org>
Subject: [PATCH 0/8] sched/isolation: Split housekeeping cpumask
Date: Tue, 4 Jan 2022 15:49:36 +0100 [thread overview]
Message-ID: <20220104144944.1278663-1-frederic@kernel.org> (raw)
Hi,
To prepare for extending cpusets to control CPU isolation features
(nohz_full, rcu_nocbs, unbound timers, workqueues, kthreads affinity...),
we need to split the global housekeeping_mask to one cpumask per isolation
feature.
Doing so is quite a chunk already so I'm working on that as a standalone
patchset. Once that get merged, the next step is to finally provide a
cpuset interface for one of these isolation features: rcu_nocb could
be interesting to handle first as nohz_full depends on it.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
isolation/split
HEAD: 2c07a16ff50d1e722babee28b926d70522e6bd3e
Thanks,
Frederic
---
Frederic Weisbecker (8):
pci: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch
workqueue: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch
net: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch
sched/isolation: Use single feature type while referring to housekeeping cpumask
sched/isolation: Consolidate check for housekeeping minimum service
sched/isolation: Consolidate error handling
sched/isolation: Fix housekeeping_mask memory leak
sched/isolation: Split housekeeping cpumask per isolation features
arch/x86/kernel/cpu/aperfmperf.c | 6 +-
arch/x86/kvm/x86.c | 2 +-
drivers/base/cpu.c | 2 +-
drivers/pci/pci-driver.c | 21 +++--
include/linux/sched/isolation.h | 43 ++++++-----
kernel/cgroup/cpuset.c | 6 +-
kernel/cpu.c | 4 +-
kernel/irq/cpuhotplug.c | 4 +-
kernel/irq/manage.c | 4 +-
kernel/kthread.c | 4 +-
kernel/rcu/tasks.h | 2 +-
kernel/rcu/tree_plugin.h | 2 +-
kernel/sched/core.c | 12 +--
kernel/sched/fair.c | 10 +--
kernel/sched/isolation.c | 162 +++++++++++++++++++++++++--------------
kernel/sched/topology.c | 8 +-
kernel/watchdog.c | 2 +-
kernel/workqueue.c | 4 +-
net/core/net-sysfs.c | 6 +-
19 files changed, 180 insertions(+), 124 deletions(-)
next reply other threads:[~2022-01-04 14:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-04 14:49 Frederic Weisbecker [this message]
2022-01-04 14:49 ` [PATCH 1/8] pci: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch Frederic Weisbecker
2022-01-04 14:49 ` [PATCH 2/8] workqueue: " Frederic Weisbecker
2022-01-07 21:22 ` Tejun Heo
2022-01-04 14:49 ` [PATCH 3/8] net: " Frederic Weisbecker
2022-01-04 14:49 ` [PATCH 4/8] sched/isolation: Use single feature type while referring to housekeeping cpumask Frederic Weisbecker
2022-01-04 14:49 ` [PATCH 5/8] sched/isolation: Consolidate check for housekeeping minimum service Frederic Weisbecker
2022-01-04 14:49 ` [PATCH 6/8] sched/isolation: Consolidate error handling Frederic Weisbecker
2022-01-04 14:49 ` [PATCH 7/8] sched/isolation: Fix housekeeping_mask memory leak Frederic Weisbecker
2022-01-05 23:30 ` Paul E. McKenney
2022-01-04 14:49 ` [PATCH 8/8] sched/isolation: Split housekeeping cpumask per isolation features Frederic Weisbecker
2022-01-06 13:43 ` [PATCH 0/8] sched/isolation: Split housekeeping cpumask Marcelo Tosatti
2022-01-07 14:59 ` Phil Auld
2022-01-10 16:51 ` Juri Lelli
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