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 25F334ED1B6; Fri, 18 Sep 2026 13:22:23 +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=1789737747; cv=none; b=USvOWwk9w7BOUFzVGLvncMWg1qb10pooCpgtzQCLtL0GQFdP/TzG3sPk55ZWxV4AWhkkNWszlXFJY5sMZpdv1YEuvIyRAoZFR90x1t0L8FniJZ37PFeV13DJi78ZjZVcX+QN3bnBgiNHoYw4qbYYXMnx26vCUbLR1Gs5P+QPwSI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789737747; c=relaxed/simple; bh=bvmz5EnzF4dWerHdSyOcNXSkYsbTRu46p7EsJ6/ubQg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=D0rGQI3akynWrHPWhmcv1AHOTrRR3K7acdM4QNmhZ+cXwoV0HI30FQQPsGi7dxSIETy0kuDpDeYvEJhEClLBhMyTP2QwBaAw37RT6/RYDpIiACGj68ZRnEQY1KX77BXZg6kBZL+ocviukAmwYD0JaRRxZ6ELNwaiK4KDU/v8Ki4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (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=F72Vi3jU; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (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="F72Vi3jU" 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=Ob8whmEoBjYZAk/g6zBYhiTErEl8byIcAMA57y+1RKE=; b=F72Vi3jU/2HLXiHp2rYH/Cfom/ X5x/vF9uhN+yYKZSSPzSSwQZ7jwOukk1DKVY1aIhFv9CHO0LpdYRoAyIZKaw2jmHl52rLIzQKB1wz ZPEvz0aDmHcH6G3HiCm8wTMHdoldzXkOUShtZLC5ncvB4OTSw1aI4vFrwekbedOLUCzwE32QiItvV QLH94wBRoCTs6QZ0OMG2tTKzotnJEJAO4UBe2JJu+AnysC9SwXouSG6r4yvD67oMyw39qCglSnYZN Y2P+RDoD9jmdYBxEwC8s6t+TYBVvDzh7LfvBbzEOLevbptOtFuDAa5RNWemghJT2Sh2K8HAMlKIQz DNVw5I3A==; Received: from hch by bombadil.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7YXm-0000000EUz0-3wlq; Fri, 18 Sep 2026 13:22:22 +0000 Date: Fri, 18 Sep 2026 06:22:22 -0700 From: Christoph Hellwig To: Tao Cui Cc: tj@kernel.org, josef@toxicopanda.com, axboe@kernel.dk, hch@infradead.org, cgroups@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, cuitao@kylinos.cn Subject: Re: [PATCH v2 2/4] blk-iocost: charge zone appends as page-counted sequential writes Message-ID: References: <20260916085304.1080271-1-cui.tao@linux.dev> <20260916085304.1080271-3-cui.tao@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@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: <20260916085304.1080271-3-cui.tao@linux.dev> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Sep 16, 2026 at 04:53:02PM +0800, Tao Cui wrote: > From: Tao Cui > > Zone append is a primary write operation for zoned devices; zoned > btrfs and f2fs use it for data writes. f2fs doesn't. xfs and btrfs do. Otherwise looks good: Reviewed-by: Christoph Hellwig