From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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.lore.kernel.org (Postfix) with ESMTPS id 8FBF4C87FCF for ; Wed, 13 Aug 2025 05:20:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=KjOxKUPYOtNCnCd/lus2iP6rL3ZLot/rSauSdHj7XKM=; b=bFonHXsonEl5RllAHUzthacdZy bCmNaw7XjKKjmw4yhH/rRkK47MjL631EffPI99+m0yRP20ZBgplOZxuNOug/X/hMRLZOiI1u06bws iVtezAB/Eme9gLr5ZOm5DPh8MtvX0kE3Xgg/UsWcLcJ0Lu4y2quUNMwox6Kd019g/5Fau2f7pOg8+ uRGWE9/5iVXqwWnxwtdzjdDpR+UgP0Pa8QtCvdpXjFH+icRZ7VB9PBxoW1tZ942YhefkpicdeC8np NRanSBMO/wFpCG07S8aHv6dgQ7RKBhz5eHpii09Em/oinxsw4JCGSIs25GIh9OHGnZDlwsjFLFpCV Fr24Oz3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1um3uE-0000000Ce78-2iWw; Wed, 13 Aug 2025 05:20:10 +0000 Received: from zeniv.linux.org.uk ([2a03:a000:7:0:5054:ff:fe1c:15ff]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1um3uC-0000000Ce6h-1PD1; Wed, 13 Aug 2025 05:20:09 +0000 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=KjOxKUPYOtNCnCd/lus2iP6rL3ZLot/rSauSdHj7XKM=; b=iTDCL4fxLjR1WN6UEkahPvC+Y2 GNjJps5E4fZouWLRmdQbBwPPH1mCH8GZuT1VtFvidzQL9pFIjrGIy8ger7QFw7qUyB6DSxBFMCmOF LWPLns4WENW88IC5y4vnenhiTfcrGz8QaFmiqlZW4dgt3+6URBn25Y2dWP0fnObUcRYE8u8S8Js5y 356r4/zM5bVk/SCK07iXGFW/ISD/v++GRjYnfAAg17BYdfFru3K+z/kofWvdZPtyUz04rBR64zWhV xRBFvJ9qCQ9oZR61+VgVm7T7iOng5g5A6eo9EhDBsPuoLLKcGhLWYsTuqHrwQk8XzDEDDy/1Shto+ 7gs0hgMg==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1um3u1-000000060h7-0Shj; Wed, 13 Aug 2025 05:19:57 +0000 Date: Wed, 13 Aug 2025 06:19:57 +0100 From: Al Viro To: NeilBrown Cc: Christian Brauner , Jan Kara , David Howells , Marc Dionne , Xiubo Li , Ilya Dryomov , Tyler Hicks , Miklos Szeredi , Richard Weinberger , Anton Ivanov , Johannes Berg , Trond Myklebust , Anna Schumaker , Chuck Lever , Jeff Layton , Amir Goldstein , Steve French , Namjae Jeon , Carlos Maiolino , linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, netfs@lists.linux.dev, ceph-devel@vger.kernel.org, ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 10/11] VFS: use d_alloc_parallel() in lookup_one_qstr_excl(). Message-ID: <20250813051957.GE222315@ZenIV> References: <20250812235228.3072318-1-neil@brown.name> <20250812235228.3072318-11-neil@brown.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250812235228.3072318-11-neil@brown.name> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250812_222008_370992_395BAE75 X-CRM114-Status: UNSURE ( 8.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org On Tue, Aug 12, 2025 at 12:25:13PM +1000, NeilBrown wrote: > + * If it is d_in_lookup() then these conditions can only be checked by the > + * file system when carrying out the intent (create or rename). I do not understand. In which cases would that happen and what would happen prior to that patch in the same cases?