Required to figure out whether the entry is the last one in the hlist. Signed-off-by: Thomas Gleixner --- include/linux/list.h | 10 ++++++++++ 1 file changed, 10 insertions(+) Index: b/include/linux/list.h =================================================================== --- a/include/linux/list.h +++ b/include/linux/list.h @@ -679,6 +679,16 @@ static inline bool hlist_fake(struct hli } /* + * Check whether the node is the last node of the head without + * accessing head. + */ +static inline bool hlist_is_last_node(struct hlist_node *n, + struct hlist_head *h) +{ + return !n->next && n->pprev == &h->first; +} + +/* * Move a list from one list head to another. Fixup the pprev * reference of the first entry if it exists. */