The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 8e6af017f4b1da9cdd2b55ce83853df8e167b4d3
Gitweb: https://git.kernel.org/tip/8e6af017f4b1da9cdd2b55ce83853df8e167b4d3
Author: Ethan Hansen <1ethanhansen@xxxxxxxxx>
AuthorDate: Fri, 02 Aug 2019 13:37:58 -07:00
Committer: Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Wed, 30 Oct 2019 08:32:07 -07:00
rcu: Remove unused function hlist_bl_del_init_rcu()
The function hlist_bl_del_init_rcu() is declared in rculist_bl.h,
but never used. This commit therefore removes it.
Signed-off-by: Ethan Hansen <1ethanhansen@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
include/linux/rculist_bl.h | 28 ----------------------------
1 file changed, 28 deletions(-)
diff --git a/include/linux/rculist_bl.h b/include/linux/rculist_bl.h
index 66e73ec..0b952d0 100644
--- a/include/linux/rculist_bl.h
+++ b/include/linux/rculist_bl.h
@@ -25,34 +25,6 @@ static inline struct hlist_bl_node *hlist_bl_first_rcu(struct hlist_bl_head *h)
}
/**
- * hlist_bl_del_init_rcu - deletes entry from hash list with re-initialization
- * @n: the element to delete from the hash list.
- *
- * Note: hlist_bl_unhashed() on the node returns true after this. It is
- * useful for RCU based read lockfree traversal if the writer side
- * must know if the list entry is still hashed or already unhashed.
- *
- * In particular, it means that we can not poison the forward pointers
- * that may still be used for walking the hash list and we can only
- * zero the pprev pointer so list_unhashed() will return true after
- * this.
- *
- * The caller must take whatever precautions are necessary (such as
- * holding appropriate locks) to avoid racing with another
- * list-mutation primitive, such as hlist_bl_add_head_rcu() or
- * hlist_bl_del_rcu(), running on this same list. However, it is
- * perfectly legal to run concurrently with the _rcu list-traversal
- * primitives, such as hlist_bl_for_each_entry_rcu().
- */
-static inline void hlist_bl_del_init_rcu(struct hlist_bl_node *n)
-{
- if (!hlist_bl_unhashed(n)) {
- __hlist_bl_del(n);
- n->pprev = NULL;
- }
-}
-
-/**
* hlist_bl_del_rcu - deletes entry from hash list without re-initialization
* @n: the element to delete from the hash list.
*
|