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authorPhilipp Reisner <philipp.reisner@linbit.com>2011-07-20 16:59:37 +0400
committerPhilipp Reisner <philipp.reisner@linbit.com>2011-08-29 13:27:01 +0400
commit9749f30f1a387070e6e8351f35aeb829eacc3ab6 (patch)
tree3bd95dd1e5eade6eb59ec84ee7ca79d3a4da12ed /include/linux/idr.h
parent6618bf16384463c0b97a5f5f1f0ce5276f5865fd (diff)
downloadlinux-9749f30f1a387070e6e8351f35aeb829eacc3ab6.tar.xz
idr: idr_for_each_entry() macro
Inspired by the list_for_each_entry() macro
Diffstat (limited to 'include/linux/idr.h')
-rw-r--r--include/linux/idr.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 255491cf522e..52a9da295296 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__ */