From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 975852F56 for ; Wed, 5 Nov 2025 13:23:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762349032; cv=none; b=iq7D96ML8viUmFURzXH4AdlO6gc5PC+7pNx9VetYd7eKgnZlgn2/9PJKRNIwZVO8sr+U1GifjrRYYb0hLhN8Rn6xNiam1I6zyM8g4Qiho7jIR2EV/91k4YXJ5VwLllkiXArxOh5L/9/PRidNQ4Q24qWKXhFDtLJkkZYUlHYL0H8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762349032; c=relaxed/simple; bh=LsRPpoO9bQWKNf3UYUVEMz6EqdSzwliLus2DT6TMjmA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TF6+F2QjFZBthWCHHpqNh9lF6RAXy70EpsUcbwUNI+VgHf/EMLI8Ei53VCKVswEZ0JtY0TGc+IzvDwnF2n+pNQaHM0svO1kvXm/YxUXNPfoexcQAWKGqC2n/vCJCXekCFdkgpDASMercMpafgZ1szFdkW+NlKJwM14kkYCtYm08= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id DB9A7227AAA; Wed, 5 Nov 2025 14:23:45 +0100 (CET) Date: Wed, 5 Nov 2025 14:23:45 +0100 From: Christoph Hellwig To: Jens Axboe Cc: Christoph Hellwig , "Martin K. Petersen" , linux-block@vger.kernel.org Subject: Re: make block layer auto-PI deadlock safe v3 Message-ID: <20251105132345.GA19731@lst.de> References: <20251103101653.2083310-1-hch@lst.de> 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: User-Agent: Mutt/1.5.17 (2007-11-01) On Tue, Nov 04, 2025 at 12:47:09PM -0700, Jens Axboe wrote: > > Fix this by adding a mempool, and capping the maximum I/O size on PI > > capable devices to not exceed the allocation size of the mempool. > > > > This is against the block-6.18 branch as it has a contextual dependency > > on the PI fix merged there yesterday. > > Yesterday? Guessing this got copy/pasted from the v1 posting, as it must > be this one: Yesterday as of the first post of the series, I should have updated this, sorry. > > commit 4c8cf6bd28d6fea23819f082ddc8063fd6fa963a (tag: block-6.18-20251023) > Author: Christoph Hellwig > Date: Wed Oct 22 10:33:31 2025 +0200 > > block: require LBA dma_alignment when using PI > > which is a bit longer ago. > > But why? Surely this is 6.19 material? This is 6.19 material. That's just a heads up that you need a merge (or rebase which I was hoping for as of the first round, but it's probably too late now)