diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/idr.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/lib/idr.c b/lib/idr.c index c3f16307b908..3df44d528b68 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -136,13 +136,13 @@ int idr_alloc_cyclic(struct idr *idr, void *ptr, int start, int end, gfp_t gfp) EXPORT_SYMBOL(idr_alloc_cyclic); /** - * idr_for_each - iterate through all stored pointers - * @idr: idr handle - * @fn: function to be called for each pointer - * @data: data passed to callback function + * idr_for_each() - Iterate through all stored pointers. + * @idr: IDR handle. + * @fn: Function to be called for each pointer. + * @data: Data passed to callback function. * * The callback function will be called for each entry in @idr, passing - * the id, the pointer and the data pointer passed to this function. + * the ID, the entry and @data. * * If @fn returns anything other than %0, the iteration stops and that * value is returned from this function. @@ -169,9 +169,9 @@ int idr_for_each(const struct idr *idr, EXPORT_SYMBOL(idr_for_each); /** - * idr_get_next - Find next populated entry - * @idr: idr handle - * @nextid: Pointer to lowest possible ID to return + * idr_get_next() - Find next populated entry. + * @idr: IDR handle. + * @nextid: Pointer to an ID. * * Returns the next populated entry in the tree with an ID greater than * or equal to the value pointed to by @nextid. On exit, @nextid is updated @@ -192,7 +192,17 @@ void *idr_get_next(struct idr *idr, int *nextid) } EXPORT_SYMBOL(idr_get_next); -void *idr_get_next_ext(struct idr *idr, unsigned long *nextid) +/** + * idr_get_next_ul() - Find next populated entry. + * @idr: IDR handle. + * @nextid: Pointer to an ID. + * + * Returns the next populated entry in the tree with an ID greater than + * or equal to the value pointed to by @nextid. On exit, @nextid is updated + * to the ID of the found value. To use in a loop, the value pointed to by + * nextid must be incremented by the user. + */ +void *idr_get_next_ul(struct idr *idr, unsigned long *nextid) { struct radix_tree_iter iter; void __rcu **slot; @@ -204,7 +214,7 @@ void *idr_get_next_ext(struct idr *idr, unsigned long *nextid) *nextid = iter.index; return rcu_dereference_raw(*slot); } -EXPORT_SYMBOL(idr_get_next_ext); +EXPORT_SYMBOL(idr_get_next_ul); /** * idr_replace() - replace pointer for given ID. |