Commit d8dcffee authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by David S. Miller
Browse files

[LIST]: Introduce list_for_each_entry_safe_from 



For iterate over list of given type from existing point safe against removal of
list entry.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9b07ef5d

include/linux/list.h

+13 −0
Original line number Diff line number Diff line
@@ -437,6 +437,19 @@ static inline void list_splice_init(struct list_head *list, 
	     &pos->member != (head);						\

	     pos = n, n = list_entry(n->member.next, typeof(*n), member))



/**

 * list_for_each_entry_safe_from - iterate over list of given type

 *			from existing point safe against removal of list entry

 * @pos:	the type * to use as a loop counter.

 * @n:		another type * to use as temporary storage

 * @head:	the head for your list.

 * @member:	the name of the list_struct within the struct.

 */

#define list_for_each_entry_safe_from(pos, n, head, member) 			\

	for (n = list_entry(pos->member.next, typeof(*pos), member);		\

	     &pos->member != (head);						\

	     pos = n, n = list_entry(n->member.next, typeof(*n), member))



/**

 * list_for_each_entry_safe_reverse - iterate backwards over list of given type safe against

 *				      removal of list entry