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Date:   Wed, 18 Jan 2023 17:42:34 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Andreas Gruenbacher <agruenba@redhat.com>
Cc:     Matthew Wilcox <willy@infradead.org>,
        Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org,
        linux-nilfs@vger.kernel.org, Hugh Dickins <hughd@google.com>,
        cluster-devel@redhat.com, linux-mm@kvack.org,
        linux-fsdevel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-ext4@vger.kernel.org, linux-afs@lists.infradead.org,
        linux-btrfs@vger.kernel.org
Subject: Re: [Cluster-devel] [PATCH 7/9] gfs2: handle a NULL folio in
 gfs2_jhead_process_page
Message-ID: <20230118164234.GB7584@lst.de>
References: <20230118094329.9553-1-hch@lst.de> <20230118094329.9553-8-hch@lst.de> <Y8gXodKIUneO+XQb@casper.infradead.org> <CAHc6FU7Exz2kr+x7jvK1mi5ENOVCOXruP7qKSdPsyhSwmfMhDA@mail.gmail.com>
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On Wed, Jan 18, 2023 at 05:24:32PM +0100, Andreas Gruenbacher wrote:
> We're actually still holding a reference to the folio from the
> find_or_create_page() in gfs2_find_jhead() here, so we know that
> memory pressure can't push the page out and filemap_get_folio() won't
> return NULL.

Ok, I'll drop this patch.