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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-17 17:56:43 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-17 17:56:43 +0200
commit43f82216f0bd114599f4a221ae6924f3658a0c9a (patch)
tree89dbd85a0a1882ae38e6b61e360b365c018195fd /kernel/lockdep.c
parentMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/... (diff)
parentInput: fm801-gp - handle errors from pci_enable_device() (diff)
downloadlinux-43f82216f0bd114599f4a221ae6924f3658a0c9a.tar.xz
linux-43f82216f0bd114599f4a221ae6924f3658a0c9a.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: fm801-gp - handle errors from pci_enable_device() Input: gameport core - handle errors returned by device_bind_driver() Input: serio core - handle errors returned by device_bind_driver() Lockdep: fix compile error in drivers/input/serio/serio.c Input: serio - add lockdep annotations Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass() Input: atkbd - supress "too many keys" error message Input: i8042 - supress ACK/NAKs when blinking during panic Input: add missing exports to fix modular build
Diffstat (limited to 'kernel/lockdep.c')
-rw-r--r--kernel/lockdep.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index d1a3b2cfe4a9..b739be2a6dc9 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -1176,7 +1176,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
* itself, so actual lookup of the hash should be once per lock object.
*/
static inline struct lock_class *
-register_lock_class(struct lockdep_map *lock, unsigned int subclass)
+register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
{
struct lockdep_subclass_key *key;
struct list_head *hash_head;
@@ -1248,7 +1248,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass)
out_unlock_set:
__raw_spin_unlock(&hash_lock);
- if (!subclass)
+ if (!subclass || force)
lock->class_cache = class;
DEBUG_LOCKS_WARN_ON(class->subclass != subclass);
@@ -1936,7 +1936,7 @@ void trace_softirqs_off(unsigned long ip)
* Initialize a lock instance's lock-class mapping info:
*/
void lockdep_init_map(struct lockdep_map *lock, const char *name,
- struct lock_class_key *key)
+ struct lock_class_key *key, int subclass)
{
if (unlikely(!debug_locks))
return;
@@ -1956,6 +1956,8 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
lock->name = name;
lock->key = key;
lock->class_cache = NULL;
+ if (subclass)
+ register_lock_class(lock, subclass, 1);
}
EXPORT_SYMBOL_GPL(lockdep_init_map);
@@ -1994,7 +1996,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
* Not cached yet or subclass?
*/
if (unlikely(!class)) {
- class = register_lock_class(lock, subclass);
+ class = register_lock_class(lock, subclass, 0);
if (!class)
return 0;
}