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Diffstat (limited to 'include/linux/lockdep.h')
-rw-r--r--include/linux/lockdep.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index c50d01ef1414..664f52c6dd4c 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -627,6 +627,13 @@ do { \
lock_acquire(&(lock)->dep_map, 0, 0, 1, 1, NULL, _THIS_IP_); \
lock_release(&(lock)->dep_map, _THIS_IP_); \
} while (0)
+# define might_lock_nested(lock, subclass) \
+do { \
+ typecheck(struct lockdep_map *, &(lock)->dep_map); \
+ lock_acquire(&(lock)->dep_map, subclass, 0, 1, 1, NULL, \
+ _THIS_IP_); \
+ lock_release(&(lock)->dep_map, _THIS_IP_); \
+} while (0)
#define lockdep_assert_irqs_enabled() do { \
WARN_ONCE(debug_locks && !current->lockdep_recursion && \
@@ -649,6 +656,7 @@ do { \
#else
# define might_lock(lock) do { } while (0)
# define might_lock_read(lock) do { } while (0)
+# define might_lock_nested(lock, subclass) do { } while (0)
# define lockdep_assert_irqs_enabled() do { } while (0)
# define lockdep_assert_irqs_disabled() do { } while (0)
# define lockdep_assert_in_irq() do { } while (0)