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authorIngo Molnar <mingo@elte.hu>2009-05-07 11:17:13 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-07 11:17:34 +0200
commit44347d947f628060b92449702071bfe1d31dfb75 (patch)
treec6ed74610d5b3295df4296659f80f5feb94b28cc /kernel/lockdep.c
parentd94fc523f3c35bd8013f04827e94756cbc0212f4 (diff)
parent413f81eba35d6ede9289b0c8a920c013a84fac71 (diff)
Merge branch 'linus' into tracing/core
Merge reason: tracing/core was on a .30-rc1 base and was missing out on on a handful of tracing fixes present in .30-rc5-almost. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/lockdep.c')
-rw-r--r--kernel/lockdep.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 47b201ecc6d..8bbeef996c7 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2492,13 +2492,20 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
void lockdep_init_map(struct lockdep_map *lock, const char *name,
struct lock_class_key *key, int subclass)
{
- if (unlikely(!debug_locks))
+ lock->class_cache = NULL;
+#ifdef CONFIG_LOCK_STAT
+ lock->cpu = raw_smp_processor_id();
+#endif
+
+ if (DEBUG_LOCKS_WARN_ON(!name)) {
+ lock->name = "NULL";
return;
+ }
+
+ lock->name = name;
if (DEBUG_LOCKS_WARN_ON(!key))
return;
- if (DEBUG_LOCKS_WARN_ON(!name))
- return;
/*
* Sanity check, the lock-class key must be persistent:
*/
@@ -2507,12 +2514,11 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
DEBUG_LOCKS_WARN_ON(1);
return;
}
- lock->name = name;
lock->key = key;
- lock->class_cache = NULL;
-#ifdef CONFIG_LOCK_STAT
- lock->cpu = raw_smp_processor_id();
-#endif
+
+ if (unlikely(!debug_locks))
+ return;
+
if (subclass)
register_lock_class(lock, subclass, 1);
}