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Message-ID: <20240806022311.3924442-16-alexs@kernel.org>
Date: Tue, 6 Aug 2024 10:23:02 +0800
From: alexs@...nel.org
To: Vitaly Wool <vitaly.wool@...sulko.com>,
Miaohe Lin <linmiaohe@...wei.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org,
linux-mm@...ck.org,
minchan@...nel.org,
willy@...radead.org,
senozhatsky@...omium.org,
david@...hat.com,
42.hyeyoo@...il.com,
Yosry Ahmed <yosryahmed@...gle.com>,
nphamcs@...il.com
Cc: Alex Shi <alexs@...nel.org>
Subject: [PATCH v5 15/21] mm/zsmalloc: convert get_zspage() to take zpdesc
From: Hyeonggon Yoo <42.hyeyoo@...il.com>
Now that all users except get_next_page() (which will be removed in
later patch) use zpdesc, convert get_zspage() to take zpdesc instead
of page.
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@...il.com>
Signed-off-by: Alex Shi <alexs@...nel.org>
---
mm/zsmalloc.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index c8a533b516ea..7ae98d048590 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -759,9 +759,9 @@ static int fix_fullness_group(struct size_class *class, struct zspage *zspage)
return newfg;
}
-static struct zspage *get_zspage(struct page *page)
+static struct zspage *get_zspage(struct zpdesc *zpdesc)
{
- struct zspage *zspage = (struct zspage *)page_private(page);
+ struct zspage *zspage = zpdesc->zspage;
BUG_ON(zspage->magic != ZSPAGE_MAGIC);
return zspage;
@@ -769,7 +769,7 @@ static struct zspage *get_zspage(struct page *page)
static struct page *get_next_page(struct page *page)
{
- struct zspage *zspage = get_zspage(page);
+ struct zspage *zspage = get_zspage(page_zpdesc(page));
if (unlikely(ZsHugePage(zspage)))
return NULL;
@@ -779,7 +779,7 @@ static struct page *get_next_page(struct page *page)
static struct zpdesc *get_next_zpdesc(struct zpdesc *zpdesc)
{
- struct zspage *zspage = get_zspage(zpdesc_page(zpdesc));
+ struct zspage *zspage = get_zspage(zpdesc);
if (unlikely(ZsHugePage(zspage)))
return NULL;
@@ -829,7 +829,7 @@ static inline bool obj_allocated(struct zpdesc *zpdesc, void *obj,
unsigned long *phandle)
{
unsigned long handle;
- struct zspage *zspage = get_zspage(zpdesc_page(zpdesc));
+ struct zspage *zspage = get_zspage(zpdesc);
if (unlikely(ZsHugePage(zspage))) {
VM_BUG_ON_PAGE(!is_first_zpdesc(zpdesc), zpdesc_page(zpdesc));
@@ -1245,7 +1245,7 @@ void *zs_map_object(struct zs_pool *pool, unsigned long handle,
read_lock(&pool->migrate_lock);
obj = handle_to_obj(handle);
obj_to_location(obj, &zpdesc, &obj_idx);
- zspage = get_zspage(zpdesc_page(zpdesc));
+ zspage = get_zspage(zpdesc);
/*
* migration cannot move any zpages in this zspage. Here, class->lock
@@ -1295,7 +1295,7 @@ void zs_unmap_object(struct zs_pool *pool, unsigned long handle)
obj = handle_to_obj(handle);
obj_to_location(obj, &zpdesc, &obj_idx);
- zspage = get_zspage(zpdesc_page(zpdesc));
+ zspage = get_zspage(zpdesc);
class = zspage_class(pool, zspage);
off = offset_in_page(class->size * obj_idx);
@@ -1459,7 +1459,7 @@ static void obj_free(int class_size, unsigned long obj)
obj_to_location(obj, &f_zpdesc, &f_objidx);
f_offset = offset_in_page(class_size * f_objidx);
- zspage = get_zspage(zpdesc_page(f_zpdesc));
+ zspage = get_zspage(f_zpdesc);
vaddr = zpdesc_kmap_atomic(f_zpdesc);
link = (struct link_free *)(vaddr + f_offset);
@@ -1493,7 +1493,7 @@ void zs_free(struct zs_pool *pool, unsigned long handle)
read_lock(&pool->migrate_lock);
obj = handle_to_obj(handle);
obj_to_zpdesc(obj, &f_zpdesc);
- zspage = get_zspage(zpdesc_page(f_zpdesc));
+ zspage = get_zspage(f_zpdesc);
class = zspage_class(pool, zspage);
spin_lock(&class->lock);
read_unlock(&pool->migrate_lock);
@@ -1826,7 +1826,7 @@ static int zs_page_migrate(struct page *newpage, struct page *page,
__SetPageZsmalloc(zpdesc_page(newzpdesc));
/* The page is locked, so this pointer must remain valid */
- zspage = get_zspage(zpdesc_page(zpdesc));
+ zspage = get_zspage(zpdesc);
pool = zspage->pool;
/*
--
2.43.0
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