The lock_chain struct definition has outdated comment, update it and add
struct member description.
Signed-off-by: Yuyang Du <duyuy...@gmail.com>
---
include/linux/lockdep.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 79c3873..37706ad 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -199,10 +199,16 @@ struct lock_list {
};
/*
- * We record lock dependency chains, so that we can cache them:
+ * struct lock_chain - we record lock dependency chains so that we can cache
them
+ *
+ * @irq_context: the same as irq_context in held_lock below
+ * @depth: the number of held locks in this chain
+ * @base: the index in chain_hlocks for this chain
+ * @entry: the collided lock chains in lock_chain hash list
+ * @chain_key: the hash key of this lock_chain
*/
struct lock_chain {
- /* see BUILD_BUG_ON()s in lookup_chain_cache() */
+ /* see BUILD_BUG_ON()s in add_chain_cache() */
unsigned int irq_context : 2,
depth : 6,
base : 24;
--
1.8.3.1
