mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-30 16:07:39 +00:00
66e5b7e194
This function suffers from not being able to determine if the cleanup is called in case it returns -ENOMEM. Nobody is using it anymore, so let's remove it. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Oleg Nesterov <oleg@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
#ifndef __LINUX_KMOD_H__
|
|
#define __LINUX_KMOD_H__
|
|
|
|
/*
|
|
* include/linux/kmod.h
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <linux/gfp.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/compiler.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/sysctl.h>
|
|
|
|
#define KMOD_PATH_LEN 256
|
|
|
|
#ifdef CONFIG_MODULES
|
|
extern char modprobe_path[]; /* for sysctl */
|
|
/* modprobe exit status on success, -ve on error. Return value
|
|
* usually useless though. */
|
|
extern __printf(2, 3)
|
|
int __request_module(bool wait, const char *name, ...);
|
|
#define request_module(mod...) __request_module(true, mod)
|
|
#define request_module_nowait(mod...) __request_module(false, mod)
|
|
#define try_then_request_module(x, mod...) \
|
|
((x) ?: (__request_module(true, mod), (x)))
|
|
#else
|
|
static inline int request_module(const char *name, ...) { return -ENOSYS; }
|
|
static inline int request_module_nowait(const char *name, ...) { return -ENOSYS; }
|
|
#define try_then_request_module(x, mod...) (x)
|
|
#endif
|
|
|
|
|
|
struct cred;
|
|
struct file;
|
|
|
|
#define UMH_NO_WAIT 0 /* don't wait at all */
|
|
#define UMH_WAIT_EXEC 1 /* wait for the exec, but not the process */
|
|
#define UMH_WAIT_PROC 2 /* wait for the process to complete */
|
|
#define UMH_KILLABLE 4 /* wait for EXEC/PROC killable */
|
|
|
|
struct subprocess_info {
|
|
struct work_struct work;
|
|
struct completion *complete;
|
|
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;
|
|
};
|
|
|
|
extern int
|
|
call_usermodehelper(char *path, char **argv, char **envp, int wait);
|
|
|
|
extern struct subprocess_info *
|
|
call_usermodehelper_setup(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 void usermodehelper_init(void);
|
|
|
|
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_KMOD_H__ */
|