Contributors: 21
Author Tokens Token Proportion Commits Commit Proportion
Rafael J. Wysocki 71 23.13% 6 16.22%
Linus Torvalds (pre-git) 64 20.85% 9 24.32%
Neil Horman 46 14.98% 1 2.70%
Jeremy Fitzhardinge 25 8.14% 1 2.70%
David Howells 21 6.84% 2 5.41%
Lucas De Marchi 16 5.21% 2 5.41%
Oleg Nesterov 12 3.91% 2 5.41%
Peter Zijlstra 9 2.93% 1 2.70%
Rusty Russell 8 2.61% 1 2.70%
Eric Paris 6 1.95% 1 2.70%
Luis R. Rodriguez 5 1.63% 1 2.70%
Andrew Morton 4 1.30% 1 2.70%
Motohiro Kosaki 3 0.98% 1 2.70%
Andi Kleen 3 0.98% 1 2.70%
Greg Kroah-Hartman 3 0.98% 1 2.70%
Boaz Harrosh 3 0.98% 1 2.70%
Srivatsa S. Bhat 2 0.65% 1 2.70%
Linus Torvalds 2 0.65% 1 2.70%
Matthew Wilcox 2 0.65% 1 2.70%
Ingo Molnar 1 0.33% 1 2.70%
Kees Cook 1 0.33% 1 2.70%
Total 307 37


#ifndef __LINUX_UMH_H__
#define __LINUX_UMH_H__

#include <linux/gfp.h>
#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/compiler.h>
#include <linux/workqueue.h>
#include <linux/sysctl.h>

struct cred;
struct file;

#define UMH_NO_WAIT	0x00	/* don't wait at all */
#define UMH_WAIT_EXEC	0x01	/* wait for the exec, but not the process */
#define UMH_WAIT_PROC	0x02	/* wait for the process to complete */
#define UMH_KILLABLE	0x04	/* wait for EXEC/PROC killable */
#define UMH_FREEZABLE	0x08	/* wait for EXEC/PROC freezable */

struct subprocess_info {
	struct work_struct work;
	struct completion *complete;
	const char *path;
	char **argv;
	char **envp;
	int wait;
	int retval;
	int (*init)(struct subprocess_info *info, struct cred *new);
	void (*cleanup)(struct subprocess_info *info);
	void *data;
} __randomize_layout;

extern int
call_usermodehelper(const char *path, char **argv, char **envp, int wait);

extern struct subprocess_info *
call_usermodehelper_setup(const char *path, char **argv, char **envp,
			  gfp_t gfp_mask,
			  int (*init)(struct subprocess_info *info, struct cred *new),
			  void (*cleanup)(struct subprocess_info *), void *data);

extern int
call_usermodehelper_exec(struct subprocess_info *info, int wait);

extern struct ctl_table usermodehelper_table[];

enum umh_disable_depth {
	UMH_ENABLED = 0,
	UMH_FREEZING,
	UMH_DISABLED,
};

extern int __usermodehelper_disable(enum umh_disable_depth depth);
extern void __usermodehelper_set_disable_depth(enum umh_disable_depth depth);

static inline int usermodehelper_disable(void)
{
	return __usermodehelper_disable(UMH_DISABLED);
}

static inline void usermodehelper_enable(void)
{
	__usermodehelper_set_disable_depth(UMH_ENABLED);
}

extern int usermodehelper_read_trylock(void);
extern long usermodehelper_read_lock_wait(long timeout);
extern void usermodehelper_read_unlock(void);

#endif /* __LINUX_UMH_H__ */