Add/fix the comment.
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
---
drivers/staging/zsmalloc/zsmalloc-main.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c
index 0fe4cbb..b7d31cc 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -565,12 +565,9 @@ EXPORT_SYMBOL_GPL(zs_destroy_pool);
* zs_malloc - Allocate block of given size from pool.
* @pool: pool to allocate from
* @size: size of block to allocate
- * @page: page no. that holds the object
- * @offset: location of object within page
*
* On success, <page, offset> identifies block allocated
- * and 0 is returned. On failure, <page, offset> is set to
- * 0 and -ENOMEM is returned.
+ * and <page, offset> is returned. On failure, NULL is returned.
*
* Allocation requests with size > ZS_MAX_ALLOC_SIZE will fail.
*/
@@ -666,6 +663,16 @@ void zs_free(struct zs_pool *pool, void *obj)
}
EXPORT_SYMBOL_GPL(zs_free);
+/**
+ * zs_map_object - get address of allocated object from handle.
+ * @pool: object allocated pool
+ * @handle: handle returned from zs_malloc
+ *
+ * Before using object allocated from zs_malloc, object
+ * should be mapped to page table by this function.
+ * After using object, call zs_unmap_object to unmap page
+ * table.
+ */
void *zs_map_object(struct zs_pool *pool, void *handle)
{
struct page *page;
--
1.7.9.5
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