cregit-Linux how code gets into the kernel

Release 4.7 include/linux/user-return-notifier.h

Directory: include/linux
#ifndef _LINUX_USER_RETURN_NOTIFIER_H

#define _LINUX_USER_RETURN_NOTIFIER_H

#ifdef CONFIG_USER_RETURN_NOTIFIER

#include <linux/list.h>
#include <linux/sched.h>


struct user_return_notifier {
	
void (*on_user_return)(struct user_return_notifier *urn);
	
struct hlist_node link;
};


void user_return_notifier_register(struct user_return_notifier *urn);
void user_return_notifier_unregister(struct user_return_notifier *urn);


static inline void propagate_user_return_notify(struct task_struct *prev, struct task_struct *next) { if (test_tsk_thread_flag(prev, TIF_USER_RETURN_NOTIFY)) { clear_tsk_thread_flag(prev, TIF_USER_RETURN_NOTIFY); set_tsk_thread_flag(next, TIF_USER_RETURN_NOTIFY); } }

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void fire_user_return_notifiers(void);
static inline void clear_user_return_notifier(struct task_struct *p) { clear_tsk_thread_flag(p, TIF_USER_RETURN_NOTIFY); }

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#else struct user_return_notifier {};
static inline void propagate_user_return_notify(struct task_struct *prev, struct task_struct *next) { }

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static inline void fire_user_return_notifiers(void) {}

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static inline void clear_user_return_notifier(struct task_struct *p) {}

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#endif #endif

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Directory: include/linux
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