add hlist_bl_lock/unlock helpers

[pandora-kernel.git] / include / linux / list_bl.h

diff --git a/include/linux/list_bl.h b/include/linux/list_bl.h
index 5bad17d..31f9d75 100644 (file)
--- a/include/linux/list_bl.h
+++ b/include/linux/list_bl.h
@@ -2,6 +2,7 @@
 #define _LINUX_LIST_BL_H
 
 #include <linux/list.h>
+#include <linux/bit_spinlock.h>
 
 /*
  * Special version of lists, where head of the list has a lock in the lowest
@@ -114,6 +115,16 @@ static inline void hlist_bl_del_init(struct hlist_bl_node *n)
        }
 }
 
+static inline void hlist_bl_lock(struct hlist_bl_head *b)
+{
+       bit_spin_lock(0, (unsigned long *)b);
+}
+
+static inline void hlist_bl_unlock(struct hlist_bl_head *b)
+{
+       __bit_spin_unlock(0, (unsigned long *)b);
+}
+
 /**
  * hlist_bl_for_each_entry     - iterate over list of given type
  * @tpos:      the type * to use as a loop cursor.