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debugobjects: Be smarter about static objects

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Make debugobjects use the return code from the fixup function. That
allows us better diagnostics in the activate check than relying on a
WARN_ON() in the object specific code.

[ tglx@linutronix.de: Split out the debugobjects vs. the timer change ]

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Christine Chan <cschan@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1320724108-20788-2-git-send-email-sboyd@codeaurora.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Stephen Boyd 2011-11-07 19:48:26 -08:00 • committed by Thomas Gleixner
parent c5e0c7825d
commit feac18dda2
1 changed files with 12 additions and 4 deletions
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16
lib/debugobjects.c
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@ -268,12 +268,16 @@ static void debug_print_object(struct debug_obj *obj, char *msg)
* Try to repair the damage, so we have a better chance to get useful * Try to repair the damage, so we have a better chance to get useful
* debug output. * debug output.
*/ */
static void static int
debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state), debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state),
void * addr, enum debug_obj_state state) void * addr, enum debug_obj_state state)
{ {
int fixed = 0;
if (fixup) if (fixup)
debug_objects_fixups += fixup(addr, state); fixed = fixup(addr, state);
debug_objects_fixups += fixed;
return fixed;
} }
static void debug_object_is_on_stack(void *addr, int onstack) static void debug_object_is_on_stack(void *addr, int onstack)
@ -386,6 +390,9 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
struct debug_bucket *db; struct debug_bucket *db;
struct debug_obj *obj; struct debug_obj *obj;
unsigned long flags; unsigned long flags;
struct debug_obj o = { .object = addr,
.state = ODEBUG_STATE_NOTAVAILABLE,
.descr = descr };
if (!debug_objects_enabled) if (!debug_objects_enabled)
return; return;
@ -425,8 +432,9 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
* let the type specific code decide whether this is * let the type specific code decide whether this is
* true or not. * true or not.
*/ */
debug_object_fixup(descr->fixup_activate, addr, if (debug_object_fixup(descr->fixup_activate, addr,
ODEBUG_STATE_NOTAVAILABLE); ODEBUG_STATE_NOTAVAILABLE))
debug_print_object(&o, "activate");
} }
/** /**