mm-zsmalloc-fix-class-per-fullness-zspage-counts.patch removed from -mm tree

The quilt patch titled
Subject: mm/zsmalloc: clarify class per-fullness zspage counts
has been removed from the -mm tree. Its filename was
mm-zsmalloc-fix-class-per-fullness-zspage-counts.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Chengming Zhou <[email protected]>
Subject: mm/zsmalloc: clarify class per-fullness zspage counts
Date: Thu, 27 Jun 2024 15:59:58 +0800

We always use insert_zspage() and remove_zspage() to update zspage's fullness location, which will account correctly.

But this special async free path use "splice" instead of remove_zspage(), so the per-fullness zspage count for ZS_INUSE_RATIO_0 won't decrease.

Clean things up by decreasing when iterate over the zspage free list.

This doesn't actually fix anything. ZS_INUSE_RATIO_0 is just a "placeholder" which is never used anywhere.

---

 mm/zsmalloc.c |    1 +
 1 file changed, 1 insertion(+)

@@ -1883,6 +1883,7 @@ static void async_free_zspage(struct wor
 
 		class = zspage_class(pool, zspage);
 		spin_lock(&class->lock);
+		class_stat_dec(class, ZS_INUSE_RATIO_0, 1);
 		__free_zspage(pool, class, zspage);
 		spin_unlock(&class->lock);
 	}

_

Patches currently in -mm which might be from [email protected] are