Date:   Fri, 7 Jan 2022 03:59:01 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     Wei Yang <richard.weiyang@gmail.com>
Cc:     peterz@infradead.org, akpm@linux-foundation.org, vbabka@suse.cz,
        will@kernel.org, linyunsheng@huawei.com, aarcange@redhat.com,
        feng.tang@intel.com, ebiederm@xmission.com,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: remove offset check on page->compound_head and
 folio->lru
Message-ID: <Yde6hZ41agqa2zs3@casper.infradead.org>
References: <20220106235254.19190-1-richard.weiyang@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220106235254.19190-1-richard.weiyang@gmail.com>
Precedence: bulk

On Thu, Jan 06, 2022 at 11:52:54PM +0000, Wei Yang wrote:
> FOLIO_MATCH() is used to make sure struct page and folio has identical
> layout for the first several words.
> 
> The comparison of offset between page->compound_head and folio->lru is
> more like an internal check in struct page.
> 
> This patch just removes it.
> 
> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>

No.