[RFC PATCH v2 11/21] mm/zsmalloc: convert init_zspage() to use zsdesc

From: Hyeonggon Yoo
Date: Thu Jul 13 2023 - 00:22:22 EST


Signed-off-by: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
---
mm/zsmalloc.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index efd7a0f78962..c8c3039a751a 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1048,16 +1048,16 @@ static void init_zspage(struct size_class *class, struct zspage *zspage)
{
unsigned int freeobj = 1;
unsigned long off = 0;
- struct page *page = get_first_page(zspage);
+ struct zsdesc *zsdesc = get_first_zsdesc(zspage);

- while (page) {
- struct page *next_page;
+ while (zsdesc) {
+ struct zsdesc *next_zsdesc;
struct link_free *link;
void *vaddr;

- set_first_obj_offset(page, off);
+ set_first_obj_offset(zsdesc_page(zsdesc), off);

- vaddr = kmap_atomic(page);
+ vaddr = zsdesc_kmap_atomic(zsdesc);
link = (struct link_free *)vaddr + off / sizeof(*link);

while ((off += class->size) < PAGE_SIZE) {
@@ -1070,8 +1070,8 @@ static void init_zspage(struct size_class *class, struct zspage *zspage)
* page, which must point to the first object on the next
* page (if present)
*/
- next_page = get_next_page(page);
- if (next_page) {
+ next_zsdesc = get_next_zsdesc(zsdesc);
+ if (next_zsdesc) {
link->next = freeobj++ << OBJ_TAG_BITS;
} else {
/*
@@ -1081,7 +1081,7 @@ static void init_zspage(struct size_class *class, struct zspage *zspage)
link->next = -1UL << OBJ_TAG_BITS;
}
kunmap_atomic(vaddr);
- page = next_page;
+ zsdesc = next_zsdesc;
off %= PAGE_SIZE;
}

--
2.41.0