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authorArnaldo Carvalho de Melo <acme@mandriva.com>2006-03-20 17:18:05 -0800
committerDavid S. Miller <davem@davemloft.net>2006-03-20 17:18:05 -0800
commitd8dcffee860d6b63996923b10f07c91d3d6c2fab (patch)
treea4b73c0d435b329f8522c380b22d9d4204a03f97
parent9b07ef5ddaced1e822b1a1fb1da088eb15c45cb4 (diff)
[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: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/linux/list.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/list.h b/include/linux/list.h
index 47208bd99f9..beb6e48e116 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -438,6 +438,19 @@ static inline void list_splice_init(struct list_head *list,
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
* @pos: the type * to use as a loop counter.