From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Minchan Kim <minchan@kernel.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>,
linux-mm@kvack.org, Alex Shi <alexs@kernel.org>
Subject: [PATCH v8 05/21] mm/zsmalloc: convert obj_malloc() to use zpdesc
Date: Thu, 5 Dec 2024 17:49:42 +0000 [thread overview]
Message-ID: <20241205175000.3187069-6-willy@infradead.org> (raw)
In-Reply-To: <20241205175000.3187069-1-willy@infradead.org>
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 03b77690c616..af8a6cd6b814 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1313,12 +1313,12 @@ 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;
@@ -1326,14 +1326,14 @@ 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_local_page(m_page);
+ vaddr = kmap_local_zpdesc(m_zpdesc);
link = (struct link_free *)vaddr + m_offset / sizeof(*link);
set_freeobj(zspage, link->next >> OBJ_TAG_BITS);
if (likely(!ZsHugePage(zspage)))
@@ -1346,7 +1346,7 @@ static unsigned long obj_malloc(struct zs_pool *pool,
kunmap_local(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;
--
2.45.2
next prev parent reply other threads:[~2024-12-05 17:50 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-05 17:49 [PATCH v8 00/21] Add zpdesc memory descriptor for zswap.zpool Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 01/21] mm/zsmalloc: add " Matthew Wilcox (Oracle)
2024-12-10 13:44 ` Hyeonggon Yoo
2024-12-05 17:49 ` [PATCH v8 02/21] mm/zsmalloc: use zpdesc in trylock_zspage()/lock_zspage() Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 03/21] mm/zsmalloc: convert __zs_map_object/__zs_unmap_object to use zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 04/21] mm/zsmalloc: add and use pfn/zpdesc seeking funcs Matthew Wilcox (Oracle)
2024-12-05 17:49 ` Matthew Wilcox (Oracle) [this message]
2024-12-05 17:49 ` [PATCH v8 06/21] mm/zsmalloc: convert create_page_chain() and its users to use zpdesc Matthew Wilcox (Oracle)
2024-12-10 13:53 ` Hyeonggon Yoo
2024-12-05 17:49 ` [PATCH v8 07/21] mm/zsmalloc: convert obj_allocated() and related helpers " Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 08/21] mm/zsmalloc: convert init_zspage() " Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 09/21] mm/zsmalloc: convert obj_to_page() and zs_free() " Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 10/21] mm/zsmalloc: add zpdesc_is_isolated()/zpdesc_zone() helper for zs_page_migrate() Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 11/21] mm/zsmalloc: rename reset_page to reset_zpdesc and use zpdesc in it Matthew Wilcox (Oracle)
2024-12-10 14:00 ` Hyeonggon Yoo
2024-12-05 17:49 ` [PATCH v8 12/21] mm/zsmalloc: convert __free_zspage() to use zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 13/21] mm/zsmalloc: convert location_to_obj() to take zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 14/21] mm/zsmalloc: convert migrate_zspage() to use zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 15/21] mm/zsmalloc: convert get_zspage() to take zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 16/21] mm/zsmalloc: convert SetZsPageMovable and remove unused funcs Matthew Wilcox (Oracle)
2024-12-10 14:04 ` Hyeonggon Yoo
2024-12-05 17:49 ` [PATCH v8 17/21] mm/zsmalloc: convert get/set_first_obj_offset() to take zpdesc Matthew Wilcox (Oracle)
2024-12-10 14:10 ` Hyeonggon Yoo
2024-12-05 17:49 ` [PATCH v8 18/21] mm/zsmalloc: introduce __zpdesc_clear_movable Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 19/21] mm/zsmalloc: introduce __zpdesc_clear/set_zsmalloc() Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 20/21] mm/zsmalloc: introduce zpdesc_clear_first() helper Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 21/21] mm/zsmalloc: update comments for page->zpdesc changes Matthew Wilcox (Oracle)
2024-12-10 15:46 ` Hyeonggon Yoo
2024-12-11 4:37 ` Matthew Wilcox
2024-12-12 0:11 ` Hyeonggon Yoo
2024-12-13 2:25 ` Alex Shi
2024-12-09 11:59 ` [PATCH v8 0/21] Add zpdesc memory descriptor for zswap.zpool alexs
2024-12-10 5:54 ` [PATCH v8 00/21] " Sergey Senozhatsky
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