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authorKay Sievers <kay.sievers@vrfy.org>2011-05-10 15:27:34 -0400
committerRafael J. Wysocki <rjw@sisk.pl>2011-05-17 17:19:18 -0400
commit13d53f8775c6a00b070a3eef6833795412eb7fcd (patch)
tree4d8d2c2261c9c41bfc37b1199b8789f5037e49ad /include/linux/kmod.h
parentc3b0795c98c08351567464150db66d11e05d7611 (diff)
kmod: always provide usermodehelper_disable()
We need to prevent kernel-forked processes during system poweroff. Such processes try to access the filesystem whose disks we are trying to shutdown at the same time. This causes delays and exceptions in the storage drivers. A follow-up patch will add these calls and need usermodehelper_disable() also on systems without suspend support. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/kmod.h')
-rw-r--r--include/linux/kmod.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index 7f3dbcb78116..310231823852 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -111,12 +111,8 @@ call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait)
111 111
112extern void usermodehelper_init(void); 112extern void usermodehelper_init(void);
113 113
114#ifdef CONFIG_PM_SLEEP
115extern int usermodehelper_disable(void); 114extern int usermodehelper_disable(void);
116extern void usermodehelper_enable(void); 115extern void usermodehelper_enable(void);
117extern bool usermodehelper_is_disabled(void); 116extern bool usermodehelper_is_disabled(void);
118#else
119static inline bool usermodehelper_is_disabled(void) { return false; }
120#endif
121 117
122#endif /* __LINUX_KMOD_H__ */ 118#endif /* __LINUX_KMOD_H__ */