[PATCH v4 05/22] mm/zsmalloc: convert obj_malloc() to use zpdesc

alexs
2024-07-29T11:20:34Z

From: Hyeonggon Yoo <42.hyeyoo@gmail.com>

Use get_first_zpdesc/get_next_zpdesc to replace
get_first_page/get_next_page. no functional change.

Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Alex Shi <alexs@kernel.org>
---
mm/zsmalloc.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 149fe2b332cb..bbc165cb587d 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1322,12 +1322,12 @@ EXPORT_SYMBOL_GPL(zs_huge_class_size);
static unsigned long obj_malloc(struct zs_pool *pool,
struct zspage *zspage, unsigned long handle)
{
- int i, nr_page, offset;
+ int i, nr_zpdesc, offset;
unsigned long obj;
struct link_free *link;
struct size_class *class;

- struct page *m_page;
+ struct zpdesc *m_zpdesc;
unsigned long m_offset;
void *vaddr;

@@ -1335,14 +1335,14 @@ static unsigned long obj_malloc(struct zs_pool *pool,
obj = get_freeobj(zspage);

offset = obj * class->size;
- nr_page = offset >> PAGE_SHIFT;
+ nr_zpdesc = offset >> PAGE_SHIFT;
m_offset = offset_in_page(offset);
- m_page = get_first_page(zspage);
+ m_zpdesc = get_first_zpdesc(zspage);

- for (i = 0; i < nr_page; i++)
- m_page = get_next_page(m_page);
+ for (i = 0; i < nr_zpdesc; i++)
+ m_zpdesc = get_next_zpdesc(m_zpdesc);

- vaddr = kmap_atomic(m_page);
+ vaddr = zpdesc_kmap_atomic(m_zpdesc);
link = (struct link_free *)vaddr + m_offset / sizeof(*link);
set_freeobj(zspage, link->next >> OBJ_TAG_BITS);
if (likely(!ZsHugePage(zspage)))
@@ -1355,7 +1355,7 @@ static unsigned long obj_malloc(struct zs_pool *pool,
kunmap_atomic(vaddr);
mod_zspage_inuse(zspage, 1);

- obj = location_to_obj(m_page, obj);
+ obj = location_to_obj(zpdesc_page(m_zpdesc), obj);
record_obj(handle, obj);

return obj;
--
2.43.0