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2d4bcf886e
When I say remove I mean remove. All profile_task_exit and profile_munmap do is call a blocking notifier chain. The helpers profile_task_register and profile_task_unregister are not called anywhere in the tree. Which means this is all dead code. So remove the dead code and make it easier to read do_exit. Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lkml.kernel.org/r/20220103213312.9144-1-ebiederm@xmission.com Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
110 lines
2 KiB
C
110 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_PROFILE_H
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#define _LINUX_PROFILE_H
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/cpumask.h>
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#include <linux/cache.h>
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#include <asm/errno.h>
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#define CPU_PROFILING 1
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#define SCHED_PROFILING 2
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#define SLEEP_PROFILING 3
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#define KVM_PROFILING 4
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struct proc_dir_entry;
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struct notifier_block;
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#if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS)
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void create_prof_cpu_mask(void);
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int create_proc_profile(void);
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#else
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static inline void create_prof_cpu_mask(void)
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{
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}
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static inline int create_proc_profile(void)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_PROFILING
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extern int prof_on __read_mostly;
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/* init basic kernel profiler */
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int profile_init(void);
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int profile_setup(char *str);
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void profile_tick(int type);
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int setup_profiling_timer(unsigned int multiplier);
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/*
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* Add multiple profiler hits to a given address:
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*/
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void profile_hits(int type, void *ip, unsigned int nr_hits);
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/*
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* Single profiler hit:
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*/
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static inline void profile_hit(int type, void *ip)
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{
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/*
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* Speedup for the common (no profiling enabled) case:
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*/
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if (unlikely(prof_on == type))
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profile_hits(type, ip, 1);
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}
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struct task_struct;
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struct mm_struct;
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/* task is dead, free task struct ? Returns 1 if
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* the task was taken, 0 if the task should be freed.
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*/
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int profile_handoff_task(struct task_struct * task);
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int task_handoff_register(struct notifier_block * n);
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int task_handoff_unregister(struct notifier_block * n);
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#else
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#define prof_on 0
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static inline int profile_init(void)
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{
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return 0;
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}
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static inline void profile_tick(int type)
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{
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return;
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}
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static inline void profile_hits(int type, void *ip, unsigned int nr_hits)
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{
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return;
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}
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static inline void profile_hit(int type, void *ip)
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{
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return;
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}
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static inline int task_handoff_register(struct notifier_block * n)
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{
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return -ENOSYS;
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}
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static inline int task_handoff_unregister(struct notifier_block * n)
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{
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return -ENOSYS;
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}
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#define profile_handoff_task(a) (0)
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#endif /* CONFIG_PROFILING */
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#endif /* _LINUX_PROFILE_H */
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