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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 /kernel/workqueue.c | |
| parent | a5abba989deceb731047425812d268daf7536575 (diff) | |
| download | blackbird-op-linux-997772884036e6e121de39322179989154437d9f.tar.gz blackbird-op-linux-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 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index ee6578b578ad..b5fe4c00eb3c 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -316,6 +316,11 @@ static inline int __next_wq_cpu(int cpu, const struct cpumask *mask, static struct debug_obj_descr work_debug_descr; +static void *work_debug_hint(void *addr) +{ + return ((struct work_struct *) addr)->func; +} + /* * fixup_init is called when: * - an active object is initialized @@ -387,6 +392,7 @@ static int work_fixup_free(void *addr, enum debug_obj_state state) static struct debug_obj_descr work_debug_descr = { .name = "work_struct", + .debug_hint = work_debug_hint, .fixup_init = work_fixup_init, .fixup_activate = work_fixup_activate, .fixup_free = work_fixup_free, |
