diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/maple_tree.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h index 295548cca8b3..6e5bd2c9875d 100644 --- a/include/linux/maple_tree.h +++ b/include/linux/maple_tree.h @@ -662,10 +662,11 @@ void *mt_next(struct maple_tree *mt, unsigned long index, unsigned long max); * mt_for_each - Iterate over each entry starting at index until max. * @__tree: The Maple Tree * @__entry: The current entry - * @__index: The index to update to track the location in the tree + * @__index: The index to start the search from. Subsequently used as iterator. * @__max: The maximum limit for @index * - * Note: Will not return the zero entry. + * This iterator skips all entries, which resolve to a NULL pointer, + * e.g. entries which has been reserved with XA_ZERO_ENTRY. */ #define mt_for_each(__tree, __entry, __index, __max) \ for (__entry = mt_find(__tree, &(__index), __max); \ |