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Date:   Tue, 12 Dec 2023 08:27:22 -0800
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Ryan Roberts <ryan.roberts@arm.com>
Cc:     David Hildenbrand <david@redhat.com>,
        Matthew Wilcox <willy@infradead.org>,
        Yin Fengwei <fengwei.yin@intel.com>,
        Yu Zhao <yuzhao@google.com>,
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        Anshuman Khandual <anshuman.khandual@arm.com>,
        Yang Shi <shy828301@gmail.com>,
        "Huang, Ying" <ying.huang@intel.com>, Zi Yan <ziy@nvidia.com>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Itaru Kitayama <itaru.kitayama@gmail.com>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        John Hubbard <jhubbard@nvidia.com>,
        David Rientjes <rientjes@google.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Hugh Dickins <hughd@google.com>,
        Kefeng Wang <wangkefeng.wang@huawei.com>,
        Barry Song <21cnbao@gmail.com>,
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        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Barry Song <v-songbaohua@oppo.com>
Subject: Re: [PATCH v9 03/10] mm: thp: Introduce multi-size THP sysfs
 interface
Message-Id: <20231212082722.13e857daf589bd49d5e877d9@linux-foundation.org>
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On Tue, 12 Dec 2023 15:32:29 +0000 Ryan Roberts <ryan.roberts@arm.com> wrote:

> > Why not perform lock/unlock only once in surrounding code? :)
> 
> I was nervous that sysfs_streq() may be unhappy in atomic context... Unfounded?
> 

Yes, unfounded.