linux-kernel - [PATCH 0/2] fix several contiguous memmap assumptions

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Message-ID: <20220329130928.266323-1-chenwandun@huawei.com>
Date:   Tue, 29 Mar 2022 21:09:26 +0800
From:   Chen Wandun <chenwandun@...wei.com>
To:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <akpm@...ux-foundation.org>
Subject: [PATCH 0/2] fix several contiguous memmap assumptions

It isn't true for only SPARSEMEM configs to assume that a compound page
has virtually contiguous page structs, so use nth_page to iterate each
page.

Inspired by:
https://lore.kernel.org/linux-mm/20220204195852.1751729-8-willy@infradead.org/

Chen Wandun (2):
  mm: fix contiguous memmap assumptions about split page
  mm: fix contiguous memmap assumptions about alloc/free pages

 include/linux/mm.h |  2 ++
 mm/compaction.c    |  6 +++---
 mm/huge_memory.c   |  2 +-
 mm/page_alloc.c    | 14 ++++++++------
 4 files changed, 14 insertions(+), 10 deletions(-)

-- 
2.18.0.huawei.25