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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/cpuset.h
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@@ -15,6 +15,7 @@
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 #include <linux/cpumask.h>
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 #include <linux/nodemask.h>
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 #include <linux/mm.h>
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+#include <linux/mmu_context.h>
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 #include <linux/jump_label.h>
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 #ifdef CONFIG_CPUSETS
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@@ -40,20 +41,21 @@
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 static inline void cpuset_inc(void)
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 {
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-	static_branch_inc(&cpusets_pre_enable_key);
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-	static_branch_inc(&cpusets_enabled_key);
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+	static_branch_inc_cpuslocked(&cpusets_pre_enable_key);
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+	static_branch_inc_cpuslocked(&cpusets_enabled_key);
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 }
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 static inline void cpuset_dec(void)
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 {
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-	static_branch_dec(&cpusets_enabled_key);
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-	static_branch_dec(&cpusets_pre_enable_key);
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+	static_branch_dec_cpuslocked(&cpusets_enabled_key);
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+	static_branch_dec_cpuslocked(&cpusets_pre_enable_key);
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 }
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 extern int cpuset_init(void);
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 extern void cpuset_init_smp(void);
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 extern void cpuset_force_rebuild(void);
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 extern void cpuset_update_active_cpus(void);
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+extern void cpuset_update_active_cpus_affine(int cpu);
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 extern void cpuset_wait_for_hotplug(void);
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 extern void cpuset_cpus_allowed(struct task_struct *p, struct cpumask *mask);
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 extern void cpuset_cpus_allowed_fallback(struct task_struct *p);
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@@ -160,6 +162,8 @@
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 	task_unlock(current);
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 }
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+extern void cpuset_hotplug_workfn(struct work_struct *work);
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+
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 #else /* !CONFIG_CPUSETS */
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 static inline bool cpusets_enabled(void) { return false; }
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@@ -168,6 +172,8 @@
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 static inline void cpuset_init_smp(void) {}
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 static inline void cpuset_force_rebuild(void) { }
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+
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+static inline void cpuset_update_active_cpus_affine(int cpu) {}
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 static inline void cpuset_update_active_cpus(void)
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 {
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@@ -179,7 +185,7 @@
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 static inline void cpuset_cpus_allowed(struct task_struct *p,
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 				       struct cpumask *mask)
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 {
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-	cpumask_copy(mask, cpu_possible_mask);
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+	cpumask_copy(mask, task_cpu_possible_mask(p));
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 }
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 static inline void cpuset_cpus_allowed_fallback(struct task_struct *p)
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@@ -275,6 +281,8 @@
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 	return false;
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 }
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+static inline void cpuset_hotplug_workfn(struct work_struct *work) {}
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+
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 #endif /* !CONFIG_CPUSETS */
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 #endif /* _LINUX_CPUSET_H */