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Edit File: smpboot.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_SMPBOOT_H #define _LINUX_SMPBOOT_H #include <linux/types.h> struct task_struct; /* Cookie handed to the thread_fn*/ struct smpboot_thread_data; /** * struct smp_hotplug_thread - CPU hotplug related thread descriptor * @store: Pointer to per cpu storage for the task pointers * @list: List head for core management * @thread_should_run: Check whether the thread should run or not. Called with * preemption disabled. * @thread_fn: The associated thread function * @create: Optional setup function, called when the thread gets * created (Not called from the thread context) * @setup: Optional setup function, called when the thread gets * operational the first time * @cleanup: Optional cleanup function, called when the thread * should stop (module exit) * @park: Optional park function, called when the thread is * parked (cpu offline) * @unpark: Optional unpark function, called when the thread is * unparked (cpu online) * @selfparking: Thread is not parked by the park function. * @thread_comm: The base name of the thread */ struct smp_hotplug_thread { struct task_struct * __percpu *store; struct list_head list; int (*thread_should_run)(unsigned int cpu); void (*thread_fn)(unsigned int cpu); void (*create)(unsigned int cpu); void (*setup)(unsigned int cpu); void (*cleanup)(unsigned int cpu, bool online); void (*park)(unsigned int cpu); void (*unpark)(unsigned int cpu); bool selfparking; const char *thread_comm; }; int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread); void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread); #endif