0.2.15  M_I|Mdv &K Index of /FSS-OZR/root/sys/dev/char/7:6/subsystem/vcsa1

Index of /FSS-OZR/root/sys/dev/char/7:6/subsystem/vcsa1

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 power/ 2026-10-11 07:29 -  
 subsystem/ 2026-10-11 06:17 -  
 dev 2026-10-11 07:32 4.0K 
 uevent 2026-10-11 07:32 4.0K 
_I|Mjq؂File not found.   l  /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_STOP_MACHINE #define _LINUX_STOP_MACHINE #include #include #include #include /* * stop_cpu[s]() is simplistic per-cpu maximum priority cpu * monopolization mechanism. The caller can specify a non-sleeping * function to be executed on a single or multiple cpus preempting all * other processes and monopolizing those cpus until it finishes. * * Resources for this mechanism are preallocated when a cpu is brought * up and requests are guaranteed to be served as long as the target * cpus are online. */ typedef int (*cpu_stop_fn_t)(void *arg); #ifdef CONFIG_SMP struct cpu_stop_work { struct list_head list; /* cpu_stopper->works */ cpu_stop_fn_t fn; unsigned long caller; void *arg; struct cpu_stop_done *done; }; int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg); int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg); bool stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg, struct cpu_stop_work *work_buf); void stop_machine_park(int cpu); void stop_machine_unpark(int cpu); void stop_machine_yield(const struct cpumask *cpumask); extern void print_stop_info(const char *log_lvl, struct task_struct *task); #else /* CONFIG_SMP */ #include struct cpu_stop_work { struct work_struct work; cpu_stop_fn_t fn; void *arg; }; static inline int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg) { int ret = -ENOENT; preempt_disable(); if (cpu == smp_processor_id()) ret = fn(arg); preempt_enable(); return ret; } static void stop_one_cpu_nowait_workfn(struct work_struct *work) { struct cpu_stop_work *stwork = container_of(work, struct cpu_stop_work, work); preempt_disable(); stwork->fn(stwork->arg); preempt_enable(); } static inline bool stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg, struct cpu_stop_work *work_buf) { if (cpu == smp_processor_id()) { INIT_WORK(&work_buf->work, stop_one_cpu_nowait_workfn); work_buf->fn = fn; work_buf->arg = arg; schedule_work(&work_buf->work); return true; } return false; } static inline void print_stop_info(const char *log_lvl, struct task_struct *task) { } #endif /* CONFIG_SMP */ /* * stop_machine "Bogolock": stop the entire machine, disable * interrupts. This is a very heavy lock, which is equivalent to * grabbing every spinlock (and