From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C05311AAA2F; Thu, 12 Jun 2025 15:56:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749743790; cv=none; b=h+vRER6OXVuY1KyjL1cOjBT9g0Z5VIFwtowC5tO7XE9TxqyTuWM5c+fLKOFe+KihJ+v5Fl9SNEsMzaIbLgqXUx1pjfPESrG3NInUSe4JHFwc9888E5mrzuQlBWgKbwKKror5Hc6u4rv5T63b6ZGq4BdkpTXV0lo+1BfJMaBn3DE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749743790; c=relaxed/simple; bh=fPHaHi2HxEdBwj2oG5SqlCNxzhdpeu3yvO6FzaXVGDU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rE7la4eLBaQcTrQPebCj654tguT/0968evs/6q6Qj7469OBo19TniFLrlMn3oMvoucGMIGL2L1LyBQvdmY5u0HCGyRB/hWISPDiVEbEw8gmvgsyzXS0YWZA0RH/rQZ2EQzEwTub14rpQL5G0GpRpPui21rVvKfzBw6QEuZaE9fk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vd4WUjaH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vd4WUjaH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08F2BC4CEEB; Thu, 12 Jun 2025 15:56:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749743790; bh=fPHaHi2HxEdBwj2oG5SqlCNxzhdpeu3yvO6FzaXVGDU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Vd4WUjaHdTJw5ReK7mTYSl7gNzWyKtYcw/9DADXColvdbygo4YDGFHejQv3XGmims aIJc2kmhKmoWrehoCyyqwIT/ENfKA51+giXhoin8fxGnHK9tHklYzJCKaJpe+BQ8qW 9UBQCprGYwvxbeUusZfKhR2xMqbTnPB8ydx5XNMJ/gzV2YEXIa9RGotIZWZAiwVgNi Hkb12Qjp+AYHRJ9NOJt26k4KfE3KlSJFKdLt28D5YeFuPck9kINk6NWD6R2XOnp614 JLE99SKiDrwbuG6E7yHo1vg51l3fvw/gCiHqfxDOvTRVJ06obC1WvnyLKsWd2vuR4h vqc8rvThTAy8A== Date: Thu, 12 Jun 2025 11:56:28 -0400 From: Mike Snitzer To: Benjamin Coddington Cc: Chuck Lever , Jeff Layton , linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jens Axboe Subject: Re: need SUNRPC TCP to receive into aligned pages [was: Re: [PATCH 1/6] NFSD: add the ability to enable use of RWF_DONTCACHE for all IO] Message-ID: References: <20250610205737.63343-1-snitzer@kernel.org> <20250610205737.63343-2-snitzer@kernel.org> <4b858fb1-25f6-457f-8908-67339e20318e@oracle.com> <7c48e17c4b575375069a4bd965f346499e66ac3a.camel@kernel.org> <110c7644b829ce158680979e6cd358193ea3f52b.camel@kernel.org> <5D9EA89B-A65F-40A1-B78F-547A42734FC2@redhat.com> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5D9EA89B-A65F-40A1-B78F-547A42734FC2@redhat.com> On Thu, Jun 12, 2025 at 10:17:22AM -0400, Benjamin Coddington wrote: > > What's already been mentioned elsewhere, but not yet here: > > The transmitter could always just tell the receiver where the data is, we'd > need an NFS v3.1 and an extension for v4.2? > > Pot Stirred, > Ben Yeah, forgot to mention giving serious consideration to extending specs to make this happen easier. Pros and cons to doing so. Thanks for raising it. Mike