From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4F65CEAD5; Thu, 29 Aug 2024 05:43:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724910231; cv=none; b=GMXM4BFEXHvdsCkGPRb5Y0bXkzEIOAmXzezV0wSjpjQ7mMOW9c9uaHWGHJ12M2YoeVhf4bJoct2u/5pHKq/p5NqS+4ZxNZh+OgrodtFZwQYEUAUNcrlv3krZUOeaDMdPnCtXNNWyaCaogYR8WNTLk29MEe92xu6wR/O4+xu+0Y0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724910231; c=relaxed/simple; bh=jUIHeK/BDy4jzx7HR0noatAjCLGtn2ZEUgWxwo4zGk8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=nnJyDGOqPfgPNfBCtQ7+nBTq8NYHFgqARfFj0Mi+HjAPSg9PNvKLG4wVA0g4JQs063biPgN4Wxr9Fc6qT8sPiWKN6+quDj11BGlHpUtsBHV1GbvinCD4/tbIcgTZRb6P942GtZQ62fmW/HNXhglfMSSRd9LMXatkWUuJF26cE2U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=K3hucU2z; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="K3hucU2z" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=WmQTcBSbwE9bnMyFvx5Bde9YwMgvJmizo+t94rLk1Nk=; b=K3hucU2zZMIS+M2H2pDm3cc/kg S/tfo/f6GzvJGj851xxY3qi22qqEg8r+ESEugrrvMW1/ICZo7GmaOkGAZ8jIRhEmeofiu0Teku6IK 2o0fwsVwzKCrLE5Ne/evg+J1KSWfLAXMtgz6p/5q8mg1tbgL+MqmWSiP+Tli7tmAf7YHN1CynpqrF f8TXU0Opc34nUMFB1EZ5jiI75Cdn+Jwwb2oCD7EDRN7dD2npSOVIV1VmOaFOu/ei9Ssht6C+pu1jN bWQ2Mzdv9POxCmc/f4B6E3xgjFLsBTGUW4CJRIgni1ew4FWr+e7tZ7EGhyeDy6kKslpcIi27XtCBz Ywsz5Fug==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjXwj-00000000d9Z-3BVa; Thu, 29 Aug 2024 05:43:49 +0000 Date: Wed, 28 Aug 2024 22:43:49 -0700 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Brian Foster , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, josef@toxicpanda.com, david@fromorbit.com Subject: Re: [PATCH v2 1/2] iomap: fix handling of dirty folios over unwritten extents Message-ID: References: <20240828181912.41517-1-bfoster@redhat.com> <20240828181912.41517-2-bfoster@redhat.com> <20240828222222.GB6224@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20240828222222.GB6224@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Aug 28, 2024 at 03:22:22PM -0700, Darrick J. Wong wrote: > I wonder why gfs2 (aka the other iomap_zero_range user) doesn't have a > truncate-down flush hammer, but maybe it doesn't support unwritten > extents? I didn't find anything obvious when I looked, so gfs2 does not support unwritten extents.