Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 0/8] sched/isolation: Split housekeeping cpumask | Date | Tue, 4 Jan 2022 15:49:36 +0100 |
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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(-)
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