The patch titled
Subject: mm/zsmalloc: convert obj_malloc() to use zpdesc
has been added to the -mm mm-unstable branch. Its filename is
mm-zsmalloc-convert-obj_malloc-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-obj_malloc-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 obj_malloc() to use zpdesc
Date: Tue, 17 Dec 2024 00:04:36 +0900
Use get_first_zpdesc/get_next_zpdesc to replace
get_first_page/get_next_page. no functional change.
Link: https://lkml.kernel.org/r/20241216150450.1228021-6-42.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-obj_malloc-to-use-zpdesc
+++ a/mm/zsmalloc.c
@@ -1295,12 +1295,12 @@ 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;
@@ -1308,14 +1308,14 @@ static unsigned long obj_malloc(struct z
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)))
@@ -1327,7 +1327,7 @@ static unsigned long obj_malloc(struct z
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;
_
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
