diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-09-03 07:41:11 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-09-03 07:41:11 +0200 |
| commit | 7d992feb7694a21ee81f22894b455dadd5d1c110 (patch) | |
| tree | d0f0961186b1c31c536a26a7f986ad7ca677453b /lib | |
| parent | 6e4664525b1db28f8c4e1130957f70a94c19213e (diff) | |
| parent | 25f27ce4a6a4995c8bdd69b4b2180465ed5ad2b8 (diff) | |
| download | linux-stable-7d992feb7694a21ee81f22894b455dadd5d1c110.tar.gz linux-stable-7d992feb7694a21ee81f22894b455dadd5d1c110.tar.bz2 linux-stable-7d992feb7694a21ee81f22894b455dadd5d1c110.zip | |
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
"
* Update RCU documentation. These were posted to LKML at
https://lkml.org/lkml/2013/8/19/611.
* Miscellaneous fixes. These were posted to LKML at
https://lkml.org/lkml/2013/8/19/619.
* Full-system idle detection. This is for use by Frederic
Weisbecker's adaptive-ticks mechanism. Its purpose is
to allow the timekeeping CPU to shut off its tick when
all other CPUs are idle. These were posted to LKML at
https://lkml.org/lkml/2013/8/19/648.
* Improve rcutorture test coverage. These were posted to LKML at
https://lkml.org/lkml/2013/8/19/675.
"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/debugobjects.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 37061ede8b81..bf2c8b1043d8 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -381,19 +381,21 @@ void debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr) * debug_object_activate - debug checks when an object is activated * @addr: address of the object * @descr: pointer to an object specific debug description structure + * Returns 0 for success, -EINVAL for check failed. */ -void debug_object_activate(void *addr, struct debug_obj_descr *descr) +int debug_object_activate(void *addr, struct debug_obj_descr *descr) { enum debug_obj_state state; struct debug_bucket *db; struct debug_obj *obj; unsigned long flags; + int ret; struct debug_obj o = { .object = addr, .state = ODEBUG_STATE_NOTAVAILABLE, .descr = descr }; if (!debug_objects_enabled) - return; + return 0; db = get_bucket((unsigned long) addr); @@ -405,23 +407,26 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr) case ODEBUG_STATE_INIT: case ODEBUG_STATE_INACTIVE: obj->state = ODEBUG_STATE_ACTIVE; + ret = 0; break; case ODEBUG_STATE_ACTIVE: debug_print_object(obj, "activate"); state = obj->state; raw_spin_unlock_irqrestore(&db->lock, flags); - debug_object_fixup(descr->fixup_activate, addr, state); - return; + ret = debug_object_fixup(descr->fixup_activate, addr, state); + return ret ? -EINVAL : 0; case ODEBUG_STATE_DESTROYED: debug_print_object(obj, "activate"); + ret = -EINVAL; break; default: + ret = 0; break; } raw_spin_unlock_irqrestore(&db->lock, flags); - return; + return ret; } raw_spin_unlock_irqrestore(&db->lock, flags); @@ -431,8 +436,11 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr) * true or not. */ if (debug_object_fixup(descr->fixup_activate, addr, - ODEBUG_STATE_NOTAVAILABLE)) + ODEBUG_STATE_NOTAVAILABLE)) { debug_print_object(&o, "activate"); + return -EINVAL; + } + return 0; } /** |