The patch titled
Subject: mm/zsmalloc: convert init_zspage() to use zpdesc
has been added to the -mm mm-unstable branch. Its filename is
mm-zsmalloc-convert-init_zspage-to-use-zpdesc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-zsmalloc-convert-init_zspage-to-use-zpdesc.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Subject: mm/zsmalloc: convert init_zspage() to use zpdesc
Date: Tue, 17 Dec 2024 00:04:39 +0900
Replace get_first/next_page func series and kmap_atomic to new helper, no
functional change.
Link: https://lkml.kernel.org/r/20241216150450.1228021-9-42.hyeyoo@xxxxxxxxx
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Signed-off-by: Alex Shi <alexs@xxxxxxxxxx>
Acked-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Tested-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/mm/zsmalloc.c~mm-zsmalloc-convert-init_zspage-to-use-zpdesc
+++ a/mm/zsmalloc.c
@@ -925,16 +925,16 @@ static void init_zspage(struct size_clas
{
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) {
@@ -947,8 +947,8 @@ static void init_zspage(struct size_clas
* 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 {
/*
@@ -958,7 +958,7 @@ static void init_zspage(struct size_clas
link->next = -1UL << OBJ_TAG_BITS;
}
kunmap_local(vaddr);
- page = next_page;
+ zpdesc = next_zpdesc;
off %= PAGE_SIZE;
}
_
Patches currently in -mm which might be from 42.hyeyoo@xxxxxxxxx are
mm-migrate-remove-slab-checks-in-isolate_movable_page.patch
mm-zsmalloc-convert-__zs_map_object-__zs_unmap_object-to-use-zpdesc.patch
mm-zsmalloc-add-and-use-pfn-zpdesc-seeking-funcs.patch
mm-zsmalloc-convert-obj_malloc-to-use-zpdesc.patch
mm-zsmalloc-convert-obj_allocated-and-related-helpers-to-use-zpdesc.patch
mm-zsmalloc-convert-init_zspage-to-use-zpdesc.patch
mm-zsmalloc-convert-obj_to_page-and-zs_free-to-use-zpdesc.patch
mm-zsmalloc-add-two-helpers-for-zs_page_migrate-and-make-it-use-zpdesc.patch
mm-zsmalloc-convert-__free_zspage-to-use-zpdesc.patch
mm-zsmalloc-convert-location_to_obj-to-take-zpdesc.patch
mm-zsmalloc-convert-migrate_zspage-to-use-zpdesc.patch
mm-zsmalloc-convert-get_zspage-to-take-zpdesc.patch
