Messages in this thread Patch in this message | | | Date | Tue, 16 May 2006 19:44:38 +0200 | From | Martin Peschke <> | Subject | [RFC] [Patch 1/8] statistics infrastructure - prerequisite: list operation |
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This patch adds another list_for_each_* derivate. I can't work around it because there is a list that I need to search both ways.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> ---
list.h | 12 ++++++++++++ 1 files changed, 12 insertions(+)
diff -Nurp a/include/linux/list.h b/include/linux/list.h --- a/include/linux/list.h 2006-05-15 12:42:12.000000000 +0200 +++ b/include/linux/list.h 2006-05-15 17:26:16.000000000 +0200 @@ -411,6 +411,18 @@ static inline void list_splice_init(stru pos = list_entry(pos->member.next, typeof(*pos), member))
/** + * list_for_each_entry_continue_reverse - iterate backwards over list + * of given type continuing before existing point + * @pos: the type * to use as a loop counter. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define list_for_each_entry_continue_reverse(pos, head, member) \ + for (pos = list_entry(pos->member.prev, typeof(*pos), member); \ + prefetch(pos->member.prev), &pos->member != (head); \ + pos = list_entry(pos->member.prev, typeof(*pos), member)) + +/** * list_for_each_entry_from - iterate over list of given type * continuing from existing point * @pos: the type * to use as a loop counter.
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