Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Fri, 26 May 2023 01:28:03 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Luis Chamberlain <mcgrof@kernel.org>
Cc:     Christoph Hellwig <hch@infradead.org>, hughd@google.com,
        akpm@linux-foundation.org, willy@infradead.org, brauner@kernel.org,
        djwong@kernel.org, p.raghav@samsung.com, da.gomez@samsung.com,
        rohan.puri@samsung.com, rpuri.linux@gmail.com,
        a.manzanares@samsung.com, dave@stgolabs.net, yosryahmed@google.com,
        keescook@chromium.org, hare@suse.de, kbusch@kernel.org,
        patches@lists.linux.dev, linux-block@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC v2 0/8] add support for blocksize > PAGE_SIZE
Message-ID: <ZHBtk3mmupubbWyc@infradead.org>
References: <20230526075552.363524-1-mcgrof@kernel.org>
 <ZHBqfyPUR4B2GNsF@infradead.org>
 <ZHBrS4hTZZn3w4tF@bombadil.infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <ZHBrS4hTZZn3w4tF@bombadil.infradead.org>
Precedence: bulk

On Fri, May 26, 2023 at 01:18:19AM -0700, Luis Chamberlain wrote:
> On Fri, May 26, 2023 at 01:14:55AM -0700, Christoph Hellwig wrote:
> > On Fri, May 26, 2023 at 12:55:44AM -0700, Luis Chamberlain wrote:
> > > This is an initial attempt to add support for block size > PAGE_SIZE for tmpfs.
> > 
> > The concept of a block size doesn't make any sense for tmpfs.   What
> > are you actually trying to do here?
> 
> More of helping to test high order folios for tmpfs. Swap for instance
> would be one thing we could use to test.

I'm still not sure where the concept of a block size would come in here.