[PATCH v2 12/17] locking/lockdep: Remove useless lock type assignment

Yuyang Du
2019-05-16T08:01:10Z

Next lock to acquire has the lock type set already. There is no need to
reassign it when it is recursive read. No functional change.

Signed-off-by: Yuyang Du <duyuyang@gmail.com>
---
kernel/locking/lockdep.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index d5a874b..ce79b5a 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3132,13 +3132,6 @@ static int validate_chain(struct task_struct *curr,
if (!ret)
return 0;
/*
- * Mark recursive read, as we jump over it when
- * building dependencies (just like we jump over
- * trylock entries):
- */
- if (ret == LOCK_TYPE_RECURSIVE)
- hlock->read = LOCK_TYPE_RECURSIVE;
- /*
* Add dependency only if this lock is not the head
* of the chain, and if it's not a secondary read-lock:
*/
--
1.8.3.1