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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-14 09:39:03 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-14 09:39:03 -0800 |
| commit | fc661f2dcb7e41dcda9ae862efb822bb2f461646 (patch) | |
| tree | 2aae84cc82d8c0e2b390d313ea36c2550327da49 /drivers | |
| parent | f7018be29253b89175d03284f8f49ac4ffed0472 (diff) | |
| parent | a8b76910e465d718effce0cad306a21fa4f3526b (diff) | |
Merge tag 'sched_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Avoid touching ~100 config files in order to be able to select the
preemption model
- clear cluster CPU masks too, on the CPU unplug path
- prevent use-after-free in cfs
- Prevent a race condition when updating CPU cache domains
- Factor out common shared part of smp_prepare_cpus() into a common
helper which can be called by both baremetal and Xen, in order to fix
a booting of Xen PV guests
* tag 'sched_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
preempt: Restore preemption model selection configs
arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology()
sched/fair: Prevent dead task groups from regaining cfs_rq's
sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
x86/smp: Factor out parts of native_smp_prepare_cpus()
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/arch_topology.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c index 981e72a3dafb..ff16a36a908b 100644 --- a/drivers/base/arch_topology.c +++ b/drivers/base/arch_topology.c @@ -677,6 +677,8 @@ void remove_cpu_topology(unsigned int cpu) cpumask_clear_cpu(cpu, topology_core_cpumask(sibling)); for_each_cpu(sibling, topology_sibling_cpumask(cpu)) cpumask_clear_cpu(cpu, topology_sibling_cpumask(sibling)); + for_each_cpu(sibling, topology_cluster_cpumask(cpu)) + cpumask_clear_cpu(cpu, topology_cluster_cpumask(sibling)); for_each_cpu(sibling, topology_llc_cpumask(cpu)) cpumask_clear_cpu(cpu, topology_llc_cpumask(sibling)); |