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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 08/21] mm/zsmalloc: convert init_zspage() to use zpdesc
Date: Thu,  5 Dec 2024 17:49:45 +0000	[thread overview]
Message-ID: <20241205175000.3187069-9-willy@infradead.org> (raw)
In-Reply-To: <20241205175000.3187069-1-willy@infradead.org>

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

Replace get_first/next_page func series and kmap_atomic to new helper,
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 894a3131ea2f..faaebc1514ed 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -943,16 +943,16 @@ 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 zpdesc *zpdesc = get_first_zpdesc(zspage);
 
-	while (page) {
-		struct page *next_page;
+	while (zpdesc) {
+		struct zpdesc *next_zpdesc;
 		struct link_free *link;
 		void *vaddr;
 
-		set_first_obj_offset(page, off);
+		set_first_obj_offset(zpdesc_page(zpdesc), off);
 
-		vaddr = kmap_local_page(page);
+		vaddr = kmap_local_zpdesc(zpdesc);
 		link = (struct link_free *)vaddr + off / sizeof(*link);
 
 		while ((off += class->size) < PAGE_SIZE) {
@@ -965,8 +965,8 @@ 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_zpdesc = get_next_zpdesc(zpdesc);
+		if (next_zpdesc) {
 			link->next = freeobj++ << OBJ_TAG_BITS;
 		} else {
 			/*
@@ -976,7 +976,7 @@ static void init_zspage(struct size_class *class, struct zspage *zspage)
 			link->next = -1UL << OBJ_TAG_BITS;
 		}
 		kunmap_local(vaddr);
-		page = next_page;
+		zpdesc = next_zpdesc;
 		off %= PAGE_SIZE;
 	}
 
-- 
2.45.2



  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 ` [PATCH v8 05/21] mm/zsmalloc: convert obj_malloc() to use zpdesc Matthew Wilcox (Oracle)
2024-12-05 17:49 ` [PATCH v8 06/21] mm/zsmalloc: convert create_page_chain() and its users " 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 ` Matthew Wilcox (Oracle) [this message]
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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