The quilt patch titled Subject: zsmalloc: set default zspage chain size to 8 has been removed from the -mm tree. Its filename was zsmalloc-set-default-zspage-chain-size-to-8.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: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> Subject: zsmalloc: set default zspage chain size to 8 Date: Wed, 18 Jan 2023 09:52:10 +0900 This changes key characteristics (pages per-zspage and objects per-zspage) of a number of size classes which in results in different pool configuration. With zspage chain size of 8 we have more size clases clusters (123) and higher huge size class watermark (3632 bytes). Please read zsmalloc documentation for more details. Link: https://lkml.kernel.org/r/20230118005210.2814763-5-senozhatsky@xxxxxxxxxxxx Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> Acked-by: Minchan Kim <minchan@xxxxxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/mm/Kconfig~zsmalloc-set-default-zspage-chain-size-to-8 +++ a/mm/Kconfig @@ -193,7 +193,7 @@ config ZSMALLOC_STAT config ZSMALLOC_CHAIN_SIZE int "Maximum number of physical pages per-zspage" - default 4 + default 8 range 4 16 depends on ZSMALLOC help _ Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are