[PATCH] lockdep: rename DEBUG_WARN_ON()
Rename DEBUG_WARN_ON() to the less generic DEBUG_LOCKS_WARN_ON() name, so that
it's clear that this is a lock-debugging internal mechanism.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index e38e4ba..fe0e9f2 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -373,7 +373,7 @@
struct thread_info *new_owner __IP_DECL__)
{
lock->owner = new_owner;
- DEBUG_WARN_ON(!list_empty(&lock->held_list));
+ DEBUG_LOCKS_WARN_ON(!list_empty(&lock->held_list));
if (debug_mutex_on) {
list_add_tail(&lock->held_list, &debug_mutex_held_locks);
lock->acquire_ip = ip;
@@ -389,22 +389,22 @@
void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter)
{
- SMP_DEBUG_WARN_ON(!spin_is_locked(&lock->wait_lock));
- DEBUG_WARN_ON(list_empty(&lock->wait_list));
- DEBUG_WARN_ON(waiter->magic != waiter);
- DEBUG_WARN_ON(list_empty(&waiter->list));
+ SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
+ DEBUG_LOCKS_WARN_ON(list_empty(&lock->wait_list));
+ DEBUG_LOCKS_WARN_ON(waiter->magic != waiter);
+ DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
}
void debug_mutex_free_waiter(struct mutex_waiter *waiter)
{
- DEBUG_WARN_ON(!list_empty(&waiter->list));
+ DEBUG_LOCKS_WARN_ON(!list_empty(&waiter->list));
memset(waiter, MUTEX_DEBUG_FREE, sizeof(*waiter));
}
void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
struct thread_info *ti __IP_DECL__)
{
- SMP_DEBUG_WARN_ON(!spin_is_locked(&lock->wait_lock));
+ SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
check_deadlock(lock, 0, ti, ip);
/* Mark the current thread as blocked on the lock: */
ti->task->blocked_on = waiter;
@@ -414,9 +414,9 @@
void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
struct thread_info *ti)
{
- DEBUG_WARN_ON(list_empty(&waiter->list));
- DEBUG_WARN_ON(waiter->task != ti->task);
- DEBUG_WARN_ON(ti->task->blocked_on != waiter);
+ DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
+ DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
+ DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
ti->task->blocked_on = NULL;
list_del_init(&waiter->list);
@@ -425,11 +425,11 @@
void debug_mutex_unlock(struct mutex *lock)
{
- DEBUG_WARN_ON(lock->magic != lock);
- DEBUG_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
- DEBUG_WARN_ON(lock->owner != current_thread_info());
+ DEBUG_LOCKS_WARN_ON(lock->magic != lock);
+ DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
+ DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
if (debug_mutex_on) {
- DEBUG_WARN_ON(list_empty(&lock->held_list));
+ DEBUG_LOCKS_WARN_ON(list_empty(&lock->held_list));
list_del_init(&lock->held_list);
}
}
@@ -456,7 +456,7 @@
*/
void fastcall mutex_destroy(struct mutex *lock)
{
- DEBUG_WARN_ON(mutex_is_locked(lock));
+ DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock));
lock->magic = NULL;
}
diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h
index a5196c3..8417b52 100644
--- a/kernel/mutex-debug.h
+++ b/kernel/mutex-debug.h
@@ -65,10 +65,10 @@
do { \
struct mutex *l = container_of(lock, struct mutex, wait_lock); \
\
- DEBUG_WARN_ON(in_interrupt()); \
+ DEBUG_LOCKS_WARN_ON(in_interrupt()); \
debug_spin_lock_save(&debug_mutex_lock, flags); \
spin_lock(lock); \
- DEBUG_WARN_ON(l->magic != l); \
+ DEBUG_LOCKS_WARN_ON(l->magic != l); \
} while (0)
#define spin_unlock_mutex(lock, flags) \
@@ -95,7 +95,7 @@
} \
} while (0)
-#define DEBUG_WARN_ON(c) \
+#define DEBUG_LOCKS_WARN_ON(c) \
do { \
if (unlikely(c && debug_mutex_on)) { \
DEBUG_OFF(); \
@@ -110,10 +110,10 @@
} while (0)
#ifdef CONFIG_SMP
-# define SMP_DEBUG_WARN_ON(c) DEBUG_WARN_ON(c)
-# define SMP_DEBUG_BUG_ON(c) DEBUG_BUG_ON(c)
+# define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c)
+# define SMP_DEBUG_BUG_ON(c) DEBUG_BUG_ON(c)
#else
-# define SMP_DEBUG_WARN_ON(c) do { } while (0)
-# define SMP_DEBUG_BUG_ON(c) do { } while (0)
+# define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
+# define SMP_DEBUG_BUG_ON(c) do { } while (0)
#endif
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 7043db2..101ceeb 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -183,8 +183,8 @@
debug_mutex_free_waiter(&waiter);
- DEBUG_WARN_ON(list_empty(&lock->held_list));
- DEBUG_WARN_ON(lock->owner != task->thread_info);
+ DEBUG_LOCKS_WARN_ON(list_empty(&lock->held_list));
+ DEBUG_LOCKS_WARN_ON(lock->owner != task->thread_info);
return 0;
}
@@ -206,7 +206,7 @@
struct mutex *lock = container_of(lock_count, struct mutex, count);
unsigned long flags;
- DEBUG_WARN_ON(lock->owner != current_thread_info());
+ DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
spin_lock_mutex(&lock->wait_lock, flags);
diff --git a/kernel/mutex.h b/kernel/mutex.h
index 0691899..7e1ed48 100644
--- a/kernel/mutex.h
+++ b/kernel/mutex.h
@@ -16,7 +16,7 @@
#define mutex_remove_waiter(lock, waiter, ti) \
__list_del((waiter)->list.prev, (waiter)->list.next)
-#define DEBUG_WARN_ON(c) do { } while (0)
+#define DEBUG_LOCKS_WARN_ON(c) do { } while (0)
#define debug_mutex_set_owner(lock, new_owner) do { } while (0)
#define debug_mutex_clear_owner(lock) do { } while (0)
#define debug_mutex_init_waiter(waiter) do { } while (0)