aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/list.h13
1 files changed, 4 insertions, 9 deletions
diff --git a/include/linux/list.h b/include/linux/list.h
index 084971f333fe..fbfca73355a3 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -601,7 +601,7 @@ static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
601 * or hlist_del_rcu(), running on this same list. 601 * or hlist_del_rcu(), running on this same list.
602 * However, it is perfectly legal to run concurrently with 602 * However, it is perfectly legal to run concurrently with
603 * the _rcu list-traversal primitives, such as 603 * the _rcu list-traversal primitives, such as
604 * hlist_for_each_rcu(), used to prevent memory-consistency 604 * hlist_for_each_entry_rcu(), used to prevent memory-consistency
605 * problems on Alpha CPUs. Regardless of the type of CPU, the 605 * problems on Alpha CPUs. Regardless of the type of CPU, the
606 * list-traversal primitive must be guarded by rcu_read_lock(). 606 * list-traversal primitive must be guarded by rcu_read_lock().
607 */ 607 */
@@ -650,7 +650,7 @@ static inline void hlist_add_after(struct hlist_node *n,
650 * or hlist_del_rcu(), running on this same list. 650 * or hlist_del_rcu(), running on this same list.
651 * However, it is perfectly legal to run concurrently with 651 * However, it is perfectly legal to run concurrently with
652 * the _rcu list-traversal primitives, such as 652 * the _rcu list-traversal primitives, such as
653 * hlist_for_each_rcu(), used to prevent memory-consistency 653 * hlist_for_each_entry_rcu(), used to prevent memory-consistency
654 * problems on Alpha CPUs. 654 * problems on Alpha CPUs.
655 */ 655 */
656static inline void hlist_add_before_rcu(struct hlist_node *n, 656static inline void hlist_add_before_rcu(struct hlist_node *n,
@@ -675,7 +675,7 @@ static inline void hlist_add_before_rcu(struct hlist_node *n,
675 * or hlist_del_rcu(), running on this same list. 675 * or hlist_del_rcu(), running on this same list.
676 * However, it is perfectly legal to run concurrently with 676 * However, it is perfectly legal to run concurrently with
677 * the _rcu list-traversal primitives, such as 677 * the _rcu list-traversal primitives, such as
678 * hlist_for_each_rcu(), used to prevent memory-consistency 678 * hlist_for_each_entry_rcu(), used to prevent memory-consistency
679 * problems on Alpha CPUs. 679 * problems on Alpha CPUs.
680 */ 680 */
681static inline void hlist_add_after_rcu(struct hlist_node *prev, 681static inline void hlist_add_after_rcu(struct hlist_node *prev,
@@ -699,11 +699,6 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
699 for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ 699 for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
700 pos = n) 700 pos = n)
701 701
702#define hlist_for_each_rcu(pos, head) \
703 for ((pos) = (head)->first; \
704 rcu_dereference((pos)) && ({ prefetch((pos)->next); 1; }); \
705 (pos) = (pos)->next)
706
707/** 702/**
708 * hlist_for_each_entry - iterate over list of given type 703 * hlist_for_each_entry - iterate over list of given type
709 * @tpos: the type * to use as a loop counter. 704 * @tpos: the type * to use as a loop counter.
@@ -756,7 +751,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
756 751
757/** 752/**
758 * hlist_for_each_entry_rcu - iterate over rcu list of given type 753 * hlist_for_each_entry_rcu - iterate over rcu list of given type
759 * @pos: the type * to use as a loop counter. 754 * @tpos: the type * to use as a loop counter.
760 * @pos: the &struct hlist_node to use as a loop counter. 755 * @pos: the &struct hlist_node to use as a loop counter.
761 * @head: the head for your list. 756 * @head: the head for your list.
762 * @member: the name of the hlist_node within the struct. 757 * @member: the name of the hlist_node within the struct.