Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
x86/resctrl: Clean up domain_remove_cpu_ctrl()
For symmetry with domain_remove_cpu_mon() refactor domain_remove_cpu_ctrl()
to take an early return when removing a CPU does not empty the domain.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
authored by
Tony Luck
and committed by
Borislav Petkov (AMD)
c1b63057
6396fc53
+14
-15
+14
-15
arch/x86/kernel/cpu/resctrl/core.c
+14
-15
arch/x86/kernel/cpu/resctrl/core.c
···
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return;
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}
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+
cpumask_clear_cpu(cpu, &hdr->cpu_mask);
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+
if (!cpumask_empty(&hdr->cpu_mask))
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return;
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+
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if (!domain_header_is_valid(hdr, RESCTRL_CTRL_DOMAIN, r->rid))
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return;
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d = container_of(hdr, struct rdt_ctrl_domain, hdr);
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hw_dom = resctrl_to_arch_ctrl_dom(d);
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-
cpumask_clear_cpu(cpu, &d->hdr.cpu_mask);
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-
if (cpumask_empty(&d->hdr.cpu_mask)) {
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-
resctrl_offline_ctrl_domain(r, d);
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-
list_del_rcu(&d->hdr.list);
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-
synchronize_rcu();
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resctrl_offline_ctrl_domain(r, d);
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list_del_rcu(&hdr->list);
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synchronize_rcu();
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-
/*
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* rdt_ctrl_domain "d" is going to be freed below, so clear
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* its pointer from pseudo_lock_region struct.
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*/
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if (d->plr)
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d->plr->d = NULL;
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ctrl_domain_free(hw_dom);
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-
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return;
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-
}
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/*
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* rdt_ctrl_domain "d" is going to be freed below, so clear
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* its pointer from pseudo_lock_region struct.
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*/
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if (d->plr)
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d->plr->d = NULL;
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ctrl_domain_free(hw_dom);
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}
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static void domain_remove_cpu_mon(int cpu, struct rdt_resource *r)