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 171A2132103; Fri, 14 Jun 2024 05:26:22 +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=1718342784; cv=none; b=oqNeIyfMXzK3DAvwAMbonWWEA3pCbg2L34ZCvveEytYRqtAoKISpcQeQj3nAkwGRUrxmiUbmTmsITVN2TJls3kfUsdj06NHNqcTP7ahqkDe3/RK+AAHoVt1Bcl+aPNzp4oXhb2w7hk89cXDLs+6AzHD6xaBSZ3EmCm83kH+y11s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718342784; c=relaxed/simple; bh=jr7Ap2IP3QYunItd2NlDGtEVWiPNSAmvpepfyuZkA9Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=oavYwQD7SpFf+3nYfC52UIwuLuQsYty6in9WHilWI6rEJjZjiVnMXSK2x9CGmDsnARIk6Vq9bGi8xHPH6R99wXf1DqYbG359g+f5i5CjwoMlAZLZMPpnAJJ12zL2oFsFn9bEpZiQxRP0mwEMfeylwsrglf/ZmtzmbPeIqnek0x0= 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=EWtWXOa9; 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="EWtWXOa9" 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=scQGN4oo9DV9/0Yr3EcBEalr/rggPy0NTj8kWFOcDvk=; b=EWtWXOa91hHymd7bkisEdPPxDn gj8Gfvk1HeBvlxvt6GK7Vhua6lVat6Fy3FPJuLoN1BGIKo56TXGEgBB7GiDOpzU7iwJhbXfdRwv+Y 1rRJz5e/9qLGe1NXHJe0CgLmiHbw8bwftGr+zW3jWfmXQLW2vFc1w7ynFAOmkpZRgS5I6XFfcVE4+ 4SDSEoNRdk7HKMkCf45r4rIK4VW4vEfBHPGnvJ4HdR/jBuBY/Jre5WyZwFXHJsyDyrqsH+k3I+fmc 0DLkfAN4vyFJ/LHgDOkgyBitv5k+0S86qunFg5s4b6UST4eH+QNeQr4/PuLgyVz8B447agj4pVf+S dcdciC4w==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHzS4-00000001VFj-2DOJ; Fri, 14 Jun 2024 05:26:16 +0000 Date: Thu, 13 Jun 2024 22:26:16 -0700 From: Christoph Hellwig To: Yu Kuai Cc: axboe@kernel.dk, tj@kernel.org, josef@toxicpanda.com, gregkh@linuxfoundation.org, lizefan.x@bytedance.com, hannes@cmpxchg.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, yukuai3@huawei.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: Re: [PATCH RFC -next 0/7] blk-iocost: support to build iocost as kernel module Message-ID: References: <20240613014937.1326020-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-block@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: <20240613014937.1326020-1-yukuai1@huaweicloud.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html This cover letter is a little, erm, sparse. Please explain why you want iocost as a module. This adds a whole lot of infrastructure for no obvious reason.