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 1277B1E0DD9 for ; Fri, 7 Nov 2025 15:40:11 +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=1762530013; cv=none; b=WTVp6ObIo9yq/VizLgfI9Go98PjFs2oxMkJArXzc/HE8okeT+ag17VLqeOSPQUTn2BGBCaqJ57z/u7D8aldfeZVp4h9lqPmOgfeAkjMzgvWxFMT7Oux8GOZu3TenVOjpV/rXJAeb1Vqoty15BTD3K+wypi9n/bTdP9r5kkdiWVg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762530013; c=relaxed/simple; bh=J6u1rzw6Q+m9vVsWYik2lrZD6Q8raYqrGFLtgeps3EI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Kld8CNVRVDwSxhaD3tEIaoeBw2A+KIhZDCE5gElMdExM8KXJ2DYVkDfeDPXFTh7EB/VNMMBYxVVG5OAiB1UacKxmWw7itEkxtAEHRQzs9VbTy09fQ8fDgRSDWzjoGo/vS5ppUFsAQwaIAhIWK305aYfN+h56m9n6Ajz8rggiF/c= 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=TfOsekXH; 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="TfOsekXH" 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=0IkrYGTxpC+vmQ3LYlIz56Ri3Z/xo4gfZagZY/7BA2A=; b=TfOsekXHSw4Vh4ns0gFXe+6rTm 3Ulr+xqi5NOzkywmuxg1qKMrtSwG170dyXAq+GUwLSbpi7krBSdARM/onS6Ttz7Yg2qJaHJBcz72m p724c1DxB7nJcHyN2PK72kxKsTq92Uh8EkwAdgwq2Dw6fu9JwZvkkJ5TL8WY2ZYIo9MAPS0c1gZjz /9ay0ylUt8KgDflIlTYWoSxN2U58P+12qUegyo4Ur+Q4R9PrV3Tc1R70TrOPMzKyBrTypnVn3rO8o SC0bhTF2+kgg7x0T06CUUxoLWQZu9kOVQongELieKK2WhSCwqdu4YKDJl3VwyzdKpt6MI3K/tE1Iz yaqvpYIg==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vHOZP-0000000HayF-1suB; Fri, 07 Nov 2025 15:40:11 +0000 Date: Fri, 7 Nov 2025 07:40:11 -0800 From: Christoph Hellwig To: Chuck Lever Cc: Christoph Hellwig , Mike Snitzer , Jeff Layton , linux-nfs@vger.kernel.org Subject: Re: [PATCH v4 2/3] NFSD: add new NFSD_IO_DIRECT variants that may override stable_how Message-ID: References: <20251105174210.54023-1-snitzer@kernel.org> <20251105174210.54023-3-snitzer@kernel.org> <7d9bcc0c-d997-4fb9-aa0c-831b8f08a9b0@oracle.com> <543c9183-40eb-459b-81bd-078e6ecb7687@oracle.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: <543c9183-40eb-459b-81bd-078e6ecb7687@oracle.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Fri, Nov 07, 2025 at 10:35:52AM -0500, Chuck Lever wrote: > > Yes, BDI congestion is gone, mostly because it didn't really work. > > I'm also not sure how it could have solved deadlocks. > > > > I feel a little out of the loops, though - what are the NFS-level > > write throttling needs to start with? > > > > Let's not go down this path right now. I'd like to stay focused on > getting the direct WRITE work merged. I'm just curious what the discussion is about at all.