linux-kernel - [PATCHv3 0/4] zsmalloc: make zspage chain size configurable

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Message-Id: <20230118005210.2814763-1-senozhatsky@chromium.org>
Date:   Wed, 18 Jan 2023 09:52:06 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Minchan Kim <minchan@...nel.org>
Cc:     Mike Kravetz <mike.kravetz@...cle.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCHv3 0/4] zsmalloc: make zspage chain size configurable

Hi,

	This turns hard coded limit on maximum number of physical
pages per-zspage into a config option. It also increases the default
limit from 4 to 8.

v3:
-- Fixed zspage isolated bitfield overflow (Mike)
-- Fixed parisc64 build failure (0day)
-- Minumum chain size value is 4 now (which has been zsmalloc default
   for ages)
-- Picked up Minchan's Acked-by

Sergey Senozhatsky (4):
  zsmalloc: rework zspage chain size selection
  zsmalloc: skip chain size calculation for pow_of_2 classes
  zsmalloc: make zspage chain size configurable
  zsmalloc: set default zspage chain size to 8

 Documentation/mm/zsmalloc.rst | 168 ++++++++++++++++++++++++++++++++++
 mm/Kconfig                    |  19 ++++
 mm/zsmalloc.c                 |  71 ++++++--------
 3 files changed, 213 insertions(+), 45 deletions(-)

-- 
2.39.0.314.g84b9a713c41-goog