Messages in this thread | | | Date | Wed, 17 May 2006 21:34:01 -0700 | From | "Randy.Dunlap" <> | Subject | Re: [RFC] [Patch 1/6] statistics infrastructure - prerequisite: list operation |
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On Wed, 17 May 2006 20:50:44 +0200 Martin Peschke wrote:
> 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 2006-05-17 19:02:03.000000000 +0200 > +++ b/include/linux/list.h 2006-05-17 19:05:41.000000000 +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
kernel-doc function name and short description need to fit on one line. (list.h has some other problems like that; I'll fix those up.)
> + * @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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