[PATCH 027/118] idr: idr_for_each_entry() macro

Philipp Reisner
2011-08-25T15:32:57Z

Inspired by the list_for_each_entry() macro
---
include/linux/idr.h | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/include/linux/idr.h b/include/linux/idr.h
index 255491c..52a9da2 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -152,4 +152,15 @@ void ida_simple_remove(struct ida *ida, unsigned int id);

void __init idr_init_cache(void);

+/**
+ * idr_for_each_entry - iterate over an idr's elements of a given type
+ * @idp: idr handle
+ * @entry: the type * to use as cursor
+ * @id: id entry's key
+ */
+#define idr_for_each_entry(idp, entry, id) \
+ for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
+ entry != NULL; \
+ ++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
+
#endif /* __IDR_H__ */
--
1.7.4.1