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| author | Stephen Boyd <sboyd@codeaurora.org> | 2011-11-07 19:48:26 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-11-23 18:49:22 +0100 |
| commit | feac18dda25134005909e7770c77464e65608bd8 (patch) | |
| tree | 2c3b2d2dfe0ca8ed9f12e49da9f86ad7845bf002 /lib/debugobjects.c | |
| parent | c5e0c7825d3a14c2dfc383763393f0bcb5400aa6 (diff) | |
| download | lwn-feac18dda25134005909e7770c77464e65608bd8.tar.gz lwn-feac18dda25134005909e7770c77464e65608bd8.zip | |
debugobjects: Be smarter about static objects
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>
Diffstat (limited to 'lib/debugobjects.c')
| -rw-r--r-- | lib/debugobjects.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index a78b7c6e042c..b7a530504b38 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -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 * debug output. */ -static void +static int debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state), void * addr, enum debug_obj_state state) { + int fixed = 0; + 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) @@ -386,6 +390,9 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr) struct debug_bucket *db; struct debug_obj *obj; unsigned long flags; + struct debug_obj o = { .object = addr, + .state = ODEBUG_STATE_NOTAVAILABLE, + .descr = descr }; if (!debug_objects_enabled) 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 * true or not. */ - debug_object_fixup(descr->fixup_activate, addr, - ODEBUG_STATE_NOTAVAILABLE); + if (debug_object_fixup(descr->fixup_activate, addr, + ODEBUG_STATE_NOTAVAILABLE)) + debug_print_object(&o, "activate"); } /** |