From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 3A11C156F45; Sat, 15 Aug 2026 05:04:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786770246; cv=none; b=tw5XTMBtOm5+3qTdicMDgurD/1VBjJK6WqcCGfgSNTbkqQgiW6Iqhgt2inm7OZqZpKFEIa0Bcu3HyHjsSbZhE42XI6N5TM1h62WDPWPY5C82cggO2xjwjuOUflwCqf3uwza/mXEb2B+W4q6+yw3lQzd2uglMM9/IbaiRXx7jZe4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786770246; c=relaxed/simple; bh=sD+y5AAbOFIJ8I+E5bM4G/BAU/2IVubeEV9oWIOb6a4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ldTESh0X+my28i/BRyw9TJo6mVp/558q0rCL3OtMKDYkD9LLHJ7e/oGuBWjolN5EDSIgOmPl0GE86+KFfSzdQuvxNpqVbj+hCaLdt3hHtdZq8ilf5fQHF84PdaJFfO9yteHjCMQm96RYtbzdV+sodHhh5KjI4sjuLXQQfQ61PIw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=LLcro41I; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="LLcro41I" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=TdAGf/nCkVIECkHyF2qnd1MoE6PGyFWeLuqW7f/TR2A=; b=LLcro41I2uAumEAf1TzxfqaBs1 QbY0taO8Wny4OegJi3LxUhUb1F+pi/yIk0A/dKfu84Pqh4aRLz72lAoFKW4Q0D5Th2/gdBIsciHGS ML0mIAz2UNFWLYYXR2Wd3k4q5MN+cndoj+o9opwTTQhp6AOEUIV1BHKVIrCsSGl0qWIoEBWU0n1MU MX2SJRJXn+uJijRGS5oByYyyMcJCu6Xv+1L0JcddgPCCLxEJ1PFaeAtFljO+l1ynEc+n2TXXYT58U l0PWjzeJ3cHEGV7+GfuNg1eJc+PD06BqQ29+LGk23IS/fv192LFFPDXW6CxJXRuhPCDS7P6DthZTf TrlZf/Fg==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.99.4 #2 (Red Hat Linux)) id 1wv6Yf-00000002k1e-25PN; Sat, 15 Aug 2026 05:03:52 +0000 Date: Sat, 15 Aug 2026 06:03:49 +0100 From: Al Viro To: NeilBrown Cc: Ian Kent , Chuck Lever , Jake Edge , Ilya Dryomov , Alex Markuze , Viacheslav Dubeyko , Jan Harkes , coda@cs.cmu.edu, Christian Brauner , Jan Kara , Trond Myklebust , Anna Schumaker , Amir Goldstein , Andrew Morton , Miklos Szeredi , autofs@vger.kernel.org, linux-kernel@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org Subject: Re: [PATCH RFC/RFT v2 00/18] Fix easy bits of the negative dentry problem Message-ID: <20260815050349.GR2636677@ZenIV> References: <20260815042707.2535717-1-neilb@ownmail.net> 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: <20260815042707.2535717-1-neilb@ownmail.net> Sender: Al Viro On Sat, Aug 15, 2026 at 02:21:17PM +1000, NeilBrown wrote: > Most of d_walk() already schedules as needed, but I > think there is still room for improvement, but that can come later. How the hell could it possibly schedule, when it might very well have grabbed rename_lock? Confused... Al, getting through the piles of mail at the moment (sick for a month)...