X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Flockdep.c;h=accb40cdb12a4cd0c3d5fd880c706d986568557d;hb=efd13be09e2db4ac4efa2c6101c4f50ee1ead4b0;hp=81b5f33970b8b8c64e07414679a6ab5822fa44fe;hpb=0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c;p=pandora-kernel.git

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 81b5f33970b8..accb40cdb12a 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -793,6 +793,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 
 		printk("BUG: MAX_LOCKDEP_KEYS too low!\n");
 		printk("turning off the locking correctness validator.\n");
+		dump_stack();
 		return NULL;
 	}
 	class = lock_classes + nr_lock_classes++;
@@ -856,6 +857,7 @@ static struct lock_list *alloc_list_entry(void)
 
 		printk("BUG: MAX_LOCKDEP_ENTRIES too low!\n");
 		printk("turning off the locking correctness validator.\n");
+		dump_stack();
 		return NULL;
 	}
 	return list_entries + nr_list_entries++;
@@ -1682,6 +1684,7 @@ cache_hit:
 
 		printk("BUG: MAX_LOCKDEP_CHAINS too low!\n");
 		printk("turning off the locking correctness validator.\n");
+		dump_stack();
 		return 0;
 	}
 	chain = lock_chains + nr_lock_chains++;
@@ -2487,13 +2490,20 @@ 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:
 	 */
@@ -2502,12 +2512,11 @@ 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);
 }
@@ -2541,6 +2550,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 		debug_locks_off();
 		printk("BUG: MAX_LOCKDEP_SUBCLASSES too low!\n");
 		printk("turning off the locking correctness validator.\n");
+		dump_stack();
 		return 0;
 	}
 
@@ -2637,6 +2647,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 		debug_locks_off();
 		printk("BUG: MAX_LOCK_DEPTH too low!\n");
 		printk("turning off the locking correctness validator.\n");
+		dump_stack();
 		return 0;
 	}