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[LIST]: Introduce list_for_each_entry_safe_from

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

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-03-20 17:18:05 -08:00 committed by David S. Miller
parent 9b07ef5dda
commit d8dcffee86
1 changed files with 13 additions and 0 deletions
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13
include/linux/list.h
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@ -437,6 +437,19 @@ static inline void list_splice_init(struct list_head *list,
&pos->member != (head); \ &pos->member != (head); \
pos = n, n = list_entry(n->member.next, typeof(*n), member)) 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 * list_for_each_entry_safe_reverse - iterate backwards over list of given type safe against
* removal of list entry * removal of list entry