The patch titled
Subject: mm/zsmalloc: introduce __zpdesc_clear/set_zsmalloc()
has been added to the -mm mm-unstable branch. Its filename is
mm-zsmalloc-introduce-__zpdesc_clear-set_zsmalloc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-zsmalloc-introduce-__zpdesc_clear-set_zsmalloc.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: Alex Shi <alexs@xxxxxxxxxx>
Subject: mm/zsmalloc: introduce __zpdesc_clear/set_zsmalloc()
Date: Tue, 17 Dec 2024 00:04:49 +0900
Add helper __zpdesc_clear_zsmalloc() for __ClearPageZsmalloc(),
__zpdesc_set_zsmalloc() for __SetPageZsmalloc(), and use them in callers.
[42.hyeyoo@xxxxxxxxx: keep reset_zpdesc() to use struct page]
Link: https://lkml.kernel.org/r/20241216150450.1228021-19-42.hyeyoo@xxxxxxxxx
Signed-off-by: Alex Shi <alexs@xxxxxxxxxx>
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
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/zpdesc.h | 10 ++++++++++
mm/zsmalloc.c | 6 +++---
2 files changed, 13 insertions(+), 3 deletions(-)
--- a/mm/zpdesc.h~mm-zsmalloc-introduce-__zpdesc_clear-set_zsmalloc
+++ a/mm/zpdesc.h
@@ -155,6 +155,16 @@ static inline void __zpdesc_set_movable(
__SetPageMovable(zpdesc_page(zpdesc), mops);
}
+static inline void __zpdesc_set_zsmalloc(struct zpdesc *zpdesc)
+{
+ __SetPageZsmalloc(zpdesc_page(zpdesc));
+}
+
+static inline void __zpdesc_clear_zsmalloc(struct zpdesc *zpdesc)
+{
+ __ClearPageZsmalloc(zpdesc_page(zpdesc));
+}
+
static inline bool zpdesc_is_isolated(struct zpdesc *zpdesc)
{
return PageIsolated(zpdesc_page(zpdesc));
--- a/mm/zsmalloc.c~mm-zsmalloc-introduce-__zpdesc_clear-set_zsmalloc
+++ a/mm/zsmalloc.c
@@ -1001,13 +1001,13 @@ static struct zspage *alloc_zspage(struc
if (!zpdesc) {
while (--i >= 0) {
zpdesc_dec_zone_page_state(zpdescs[i]);
- __ClearPageZsmalloc(zpdesc_page(zpdescs[i]));
+ __zpdesc_clear_zsmalloc(zpdescs[i]);
free_zpdesc(zpdescs[i]);
}
cache_free_zspage(pool, zspage);
return NULL;
}
- __SetPageZsmalloc(zpdesc_page(zpdesc));
+ __zpdesc_set_zsmalloc(zpdesc);
zpdesc_inc_zone_page_state(zpdesc);
zpdescs[i] = zpdesc;
@@ -1786,7 +1786,7 @@ static int zs_page_migrate(struct page *
VM_BUG_ON_PAGE(!zpdesc_is_isolated(zpdesc), zpdesc_page(zpdesc));
/* We're committed, tell the world that this is a Zsmalloc page. */
- __SetPageZsmalloc(zpdesc_page(newzpdesc));
+ __zpdesc_set_zsmalloc(newzpdesc);
/* The page is locked, so this pointer must remain valid */
zspage = get_zspage(zpdesc);
_
Patches currently in -mm which might be from alexs@xxxxxxxxxx are
mm-zsmalloc-add-zpdesc-memory-descriptor-for-zswapzpool.patch
mm-zsmalloc-use-zpdesc-in-trylock_zspage-lock_zspage.patch
mm-zsmalloc-convert-create_page_chain-and-its-users-to-use-zpdesc.patch
mm-zsmalloc-convert-reset_page-to-reset_zpdesc.patch
mm-zsmalloc-convert-setzspagemovable-and-remove-unused-funcs.patch
mm-zsmalloc-convert-get-set_first_obj_offset-to-take-zpdesc.patch
mm-zsmalloc-introduce-__zpdesc_clear-set_zsmalloc.patch
