[v9,mm-unstable,13/18] mm/zsmalloc: convert location_to_obj() to take zpdesc

Commit Message

Hyeonggon Yoo Dec. 16, 2024, 3:04 p.m. UTC

As all users of location_to_obj() now use zpdesc, convert
location_to_obj() to take zpdesc.

Signed-off-by: Hyeonggon Yoo <[e-mail]>
Signed-off-by: Alex Shi <[e-mail]>
---
 mm/zsmalloc.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

Patch

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index e1f501d51226..37212964a365 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -804,15 +804,15 @@  static void obj_to_zpdesc(unsigned long obj, struct zpdesc **zpdesc)
 }
 
 /**
- * location_to_obj - get obj value encoded from (<page>, <obj_idx>)
- * @page: page object resides in zspage
+ * location_to_obj - get obj value encoded from (<zpdesc>, <obj_idx>)
+ * @zpdesc: zpdesc object resides in zspage
  * @obj_idx: object index
  */
-static unsigned long location_to_obj(struct page *page, unsigned int obj_idx)
+static unsigned long location_to_obj(struct zpdesc *zpdesc, unsigned int obj_idx)
 {
 	unsigned long obj;
 
-	obj = page_to_pfn(page) << OBJ_INDEX_BITS;
+	obj = zpdesc_pfn(zpdesc) << OBJ_INDEX_BITS;
 	obj |= obj_idx & OBJ_INDEX_MASK;
 
 	return obj;
@@ -1358,7 +1358,7 @@  static unsigned long obj_malloc(struct zs_pool *pool,
 	kunmap_local(vaddr);
 	mod_zspage_inuse(zspage, 1);
 
-	obj = location_to_obj(zpdesc_page(m_zpdesc), obj);
+	obj = location_to_obj(m_zpdesc, obj);
 	record_obj(handle, obj);
 
 	return obj;
@@ -1845,8 +1845,7 @@  static int zs_page_migrate(struct page *newpage, struct page *page,
 
 			old_obj = handle_to_obj(handle);
 			obj_to_location(old_obj, &dummy, &obj_idx);
-			new_obj = (unsigned long)location_to_obj(zpdesc_page(newzpdesc),
-								obj_idx);
+			new_obj = (unsigned long)location_to_obj(newzpdesc, obj_idx);
 			record_obj(handle, new_obj);
 		}
 	}