linux-kernel - [PATCH v3 0/2] Leave IRQs enabled for per-cpu page allocations

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Message-Id: <20221118101714.19590-1-mgorman@techsingularity.net>
Date:   Fri, 18 Nov 2022 10:17:12 +0000
From:   Mel Gorman <mgorman@...hsingularity.net>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Hugh Dickins <hughd@...gle.com>, Yu Zhao <yuzhao@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Michal Hocko <mhocko@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Mel Gorman <mgorman@...hsingularity.net>
Subject: [PATCH v3 0/2] Leave IRQs enabled for per-cpu page allocations

Changelog since V2
o Fix list corruption issue					(hughd)
o Tighen up locking protocol					(hughd)
o Micro-optimisations						(hughd)

Changelog since V1
o Use trylock in free_unref_page_list due to IO completion from
  softirq context						(yuzhao)

This was a standalone patch but now split in two. The main changes since
v2 are fixing the issues exposed by Hugh's shmfs stress test.

Patch 1 is a long-standing issue that is technically a bug but happened
to work because of how it was used.

Patch 2 leaves IRQs enabled for most PCP allocations with more details
in the changelog itself.

-- 
2.35.3