The patch titled
Subject: mm/zsmalloc: convert location_to_obj() to take zpdesc
has been added to the -mm mm-unstable branch. Its filename is
mm-zsmalloc-convert-location_to_obj-to-take-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-location_to_obj-to-take-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 location_to_obj() to take zpdesc
Date: Tue, 17 Dec 2024 00:04:44 +0900
As all users of location_to_obj() now use zpdesc, convert
location_to_obj() to take zpdesc.
Link: https://lkml.kernel.org/r/20241216150450.1228021-14-42.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 | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
--- a/mm/zsmalloc.c~mm-zsmalloc-convert-location_to_obj-to-take-zpdesc
+++ a/mm/zsmalloc.c
@@ -804,15 +804,15 @@ static void obj_to_zpdesc(unsigned long
}
/**
- * location_to_obj - get obj value encoded from (<page>, <obj_idx>)
- * @page: page object resides in zspage
+ * location_to_obj - get obj value encoded from (<zpdesc>, <obj_idx>)
+ * @zpdesc: zpdesc object resides in zspage
* @obj_idx: object index
*/
-static unsigned long location_to_obj(struct page *page, unsigned int obj_idx)
+static unsigned long location_to_obj(struct zpdesc *zpdesc, unsigned int obj_idx)
{
unsigned long obj;
- obj = page_to_pfn(page) << OBJ_INDEX_BITS;
+ obj = zpdesc_pfn(zpdesc) << OBJ_INDEX_BITS;
obj |= obj_idx & OBJ_INDEX_MASK;
return obj;
@@ -1358,7 +1358,7 @@ static unsigned long obj_malloc(struct z
kunmap_local(vaddr);
mod_zspage_inuse(zspage, 1);
- obj = location_to_obj(zpdesc_page(m_zpdesc), obj);
+ obj = location_to_obj(m_zpdesc, obj);
record_obj(handle, obj);
return obj;
@@ -1845,8 +1845,7 @@ static int zs_page_migrate(struct page *
old_obj = handle_to_obj(handle);
obj_to_location(old_obj, &dummy, &obj_idx);
- new_obj = (unsigned long)location_to_obj(zpdesc_page(newzpdesc),
- obj_idx);
+ new_obj = (unsigned long)location_to_obj(newzpdesc, obj_idx);
record_obj(handle, new_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
