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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-03-07 09:58:33 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-03-08 16:10:38 +0100 |
| commit | 997772884036e6e121de39322179989154437d9f (patch) | |
| tree | 618ef63c45e16892ea26a99cafef6b0442e8eca1 /lib/debugobjects.c | |
| parent | a5abba989deceb731047425812d268daf7536575 (diff) | |
| download | kernel-common-997772884036e6e121de39322179989154437d9f.tar.gz kernel-common-997772884036e6e121de39322179989154437d9f.tar.bz2 kernel-common-997772884036e6e121de39322179989154437d9f.zip | |
debugobjects: Add hint for better object identification
In complex subsystems like mac80211 structures can contain several
timers and work structs, so identifying a specific instance from the
call trace and object type output of debugobjects can be hard.
Allow the subsystems which support debugobjects to provide a hint
function. This function returns a pointer to a kernel address
(preferrably the objects callback function) which is printed along
with the debugobjects type.
Add hint methods for timer_list, work_struct and hrtimer.
[ tglx: Massaged changelog, made it compile ]
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
LKML-Reference: <20110307085809.GA9334@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'lib/debugobjects.c')
| -rw-r--r-- | lib/debugobjects.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index deebcc57d4e6..9d86e45086f5 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -249,14 +249,17 @@ static struct debug_bucket *get_bucket(unsigned long addr) static void debug_print_object(struct debug_obj *obj, char *msg) { + struct debug_obj_descr *descr = obj->descr; static int limit; - if (limit < 5 && obj->descr != descr_test) { + if (limit < 5 && descr != descr_test) { + void *hint = descr->debug_hint ? + descr->debug_hint(obj->object) : NULL; limit++; WARN(1, KERN_ERR "ODEBUG: %s %s (active state %u) " - "object type: %s\n", + "object type: %s hint: %pS\n", msg, obj_states[obj->state], obj->astate, - obj->descr->name); + descr->name, hint); } debug_objects_warnings++; } |