linux-kernel - [PATCH v2 0/4] Clean up and fixes for swap

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Message-Id: <20221219185840.25441-1-ryncsn@gmail.com>
Date:   Tue, 20 Dec 2022 02:58:36 +0800
From:   Kairui Song <ryncsn@...il.com>
To:     linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Miaohe Lin <linmiaohe@...wei.com>,
        David Hildenbrand <david@...hat.com>,
        "Huang, Ying" <ying.huang@...el.com>,
        Hugh Dickins <hughd@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        Kairui Song <kasong@...cent.com>
Subject: [PATCH v2 0/4] Clean up and fixes for swap

From: Kairui Song <kasong@...cent.com>

This series cleanup some code path, saves a few cycles and reduce the
object size by a bit, also fixes some rare race issue of statistics.

Update from V1:
- Collect Huang, Ying's Reviewd-by.
- Use bloat-o-meter to show size change info in commit message as
  suggested by Matthew Wilcox.
- Rework patch 4/4 as suggested by Huang, Ying.
- Drop a previouly invalid clean up patch.

Kairui Song (4):
  swapfile: get rid of volatile and avoid redundant read
  swap: avoid a redundant pte map if ra window is 1
  swap: fold swap_ra_clamp_pfn into swap_ra_info
  swap: avoid holding swap reference in swap_cache_get_folio

 mm/shmem.c      | 11 +++++++++
 mm/swap_state.c | 59 +++++++++++++++++++------------------------------
 mm/swapfile.c   |  7 +++---
 3 files changed, 38 insertions(+), 39 deletions(-)

-- 
2.35.2