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-rw-r--r--Documentation/technical/api-hashmap.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/technical/api-hashmap.txt b/Documentation/technical/api-hashmap.txt
index 28f5a8b..a3f020c 100644
--- a/Documentation/technical/api-hashmap.txt
+++ b/Documentation/technical/api-hashmap.txt
@@ -188,7 +188,9 @@ Returns the removed entry, or NULL if not found.
`void *hashmap_iter_next(struct hashmap_iter *iter)`::
`void *hashmap_iter_first(struct hashmap *map, struct hashmap_iter *iter)`::
- Used to iterate over all entries of a hashmap.
+ Used to iterate over all entries of a hashmap. Note that it is
+ not safe to add or remove entries to the hashmap while
+ iterating.
+
`hashmap_iter_init` initializes a `hashmap_iter` structure.
+