linux-kernel - Re: [PATCH] mm/hugetlb: Fix a race between hugetlb sysctl handlers

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Message-ID: <20200825152509.GO1509399@tassilo.jf.intel.com>
Date:   Tue, 25 Aug 2020 08:25:09 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     mike.kravetz@...cle.com, akpm@...ux-foundation.org,
        npiggin@...e.de, agl@...ibm.com, nacc@...ibm.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/hugetlb: Fix a race between hugetlb sysctl handlers

> Fixes: e5ff215941d5 ("hugetlb: multiple hstates for multiple page sizes")

I don't think the Fixes line is correct. The original patch
just used a global variable and didn't have this race.
It must have been added later in some other patch that added
hugetlb_sysctl_handler_common.

-Andi