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| author | Andrew Morton <akpm@linux-foundation.org> | 2007-08-24 16:11:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-10-16 09:24:41 -0700 |
| commit | ae87221d3ce49d9de1e43756da834fd0bf05a2ad (patch) | |
| tree | f96792656b00e95c307f3f37369c98a85ce38207 /include/linux/sysfs.h | |
| parent | e94320939f44e0cbaccc3f259a5778abced4949c (diff) | |
| download | lwn-ae87221d3ce49d9de1e43756da834fd0bf05a2ad.tar.gz lwn-ae87221d3ce49d9de1e43756da834fd0bf05a2ad.zip | |
sysfs: crash debugging
Print the name of the last-accessed sysfs file when we oops, to help track
down oopses which occur in sysfs store/read handlers. Because these oopses
tend to not leave any trace of the offending code in the stack traces.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/sysfs.h')
| -rw-r--r-- | include/linux/sysfs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 37fa24152bd8..8ec406afb3eb 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -119,6 +119,8 @@ void sysfs_remove_file_from_group(struct kobject *kobj, void sysfs_notify(struct kobject *kobj, char *dir, char *attr); +void sysfs_printk_last_file(void); + extern int __must_check sysfs_init(void); #else /* CONFIG_SYSFS */ @@ -231,6 +233,10 @@ static inline int __must_check sysfs_init(void) return 0; } +static inline void sysfs_printk_last_file(void) +{ +} + #endif /* CONFIG_SYSFS */ #endif /* _SYSFS_H_ */ |