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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1D5B2D2FED9 for ; Tue, 27 Jan 2026 20:13:20 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4C9006B0005; Tue, 27 Jan 2026 15:13:19 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 476756B0089; Tue, 27 Jan 2026 15:13:19 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 34DFD6B008A; Tue, 27 Jan 2026 15:13:19 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 22A7D6B0005 for ; Tue, 27 Jan 2026 15:13:19 -0500 (EST) Received: from smtpin11.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id AE01114037D for ; Tue, 27 Jan 2026 20:13:18 +0000 (UTC) X-FDA: 84378843276.11.A347001 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) by imf05.hostedemail.com (Postfix) with ESMTP id B533410000B for ; Tue, 27 Jan 2026 20:13:16 +0000 (UTC) Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=linux.org.uk header.s=zeniv-20220401 header.b=HEJ8AHlZ; dmarc=pass (policy=none) header.from=zeniv.linux.org.uk; spf=none (imf05.hostedemail.com: domain of viro@ftp.linux.org.uk has no SPF policy when checking 62.89.141.173) smtp.mailfrom=viro@ftp.linux.org.uk ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1769544797; a=rsa-sha256; cv=none; b=cDHG8S49DVOrknlJh+GBRwWlpdauppze1C21KWGHqw5R5QcHZzUl35QuE7ML0Z8Ng5aHA5 DREdQeZJ0/98RvW0IuAsad0dFQq03yQFItzgch2tjNIZs8YZPiCsSKGhAcCKgGQy4SvmyA UwFPFfbFBjbkOFl8m7UvrSwe43EhH4I= ARC-Authentication-Results: i=1; imf05.hostedemail.com; dkim=pass header.d=linux.org.uk header.s=zeniv-20220401 header.b=HEJ8AHlZ; dmarc=pass (policy=none) header.from=zeniv.linux.org.uk; spf=none (imf05.hostedemail.com: domain of viro@ftp.linux.org.uk has no SPF policy when checking 62.89.141.173) smtp.mailfrom=viro@ftp.linux.org.uk ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1769544797; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=BThmTYQxvIJzQkA/L/WO0umKgcoH0NckbPSOFRkaDt4=; b=aEAlWjZO+CpDM3XLp4dPuHr5BEpXexJtSfp2JpowNfumzfpVyKMDcIkyGWDSfSXHM89Y/c dy9b7wLkgwVAPfPms8oKiDLvlliliCtgD5SXkhKxPqPMij3lA5LExvHO9fjdKmU2sLawIF qnuC5t9g/Zee0iogV7n185FpX+fvEO8= 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=BThmTYQxvIJzQkA/L/WO0umKgcoH0NckbPSOFRkaDt4=; b=HEJ8AHlZg14JJPbg8QtNWS1ji2 tJT/2Fs1T5x5ADAyCAF83hSNvt9o3z0K3RSxk2gUB8Da5/tSbaBFKwqw22nB9KSBEdLXuDL7FqPew 7Y+0P4xYkRhvZjXTFdCSvNynNniJgE6ZN0ESEh44Vc7Ehkj50lCswNvXEYERPQvdfeH75yQduHjQN Pq05K/lmA3+K8RokHDK11A0sXSW/FfXFcjSMTd9/8b2Gfp8Iz6ORbZwkKjtp/91tEjK8DcKs1Smzh pMHt05iiq6RxHZG8nxYrYmxa8r2p827g4+Rly5OrSWZkh9CWcaNv1tRLRrbeWiJeWu+s2oV5wvc/f Bx+2nTwQ==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1vkpSg-00000001D3Z-2Fqa; Tue, 27 Jan 2026 20:14:54 +0000 Date: Tue, 27 Jan 2026 20:14:54 +0000 From: Al Viro To: Linus Torvalds Cc: Greg KH , Samuel Wu , linux-fsdevel@vger.kernel.org, brauner@kernel.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, a.hindborg@kernel.org, linux-mm@kvack.org, linux-efi@vger.kernel.org, ocfs2-devel@lists.linux.dev, kees@kernel.org, rostedt@goodmis.org, linux-usb@vger.kernel.org, paul@paul-moore.com, casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org, john.johansen@canonical.com, selinux@vger.kernel.org, borntraeger@linux.ibm.com, bpf@vger.kernel.org, clm@meta.com, android-kernel-team Subject: Re: [PATCH v4 00/54] tree-in-dcache stuff Message-ID: <20260127201454.GQ3183987@ZenIV> References: <20251118051604.3868588-1-viro@zeniv.linux.org.uk> <2026012715-mantra-pope-9431@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: B533410000B X-Stat-Signature: yzqz63nnnaz1wy9ryrfx8fmnihpgs4pu X-HE-Tag: 1769544796-996566 X-HE-Meta: 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 C7F1vsKQ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Jan 27, 2026 at 10:39:04AM -0800, Linus Torvalds wrote: > On Mon, 26 Jan 2026 at 23:42, Greg KH wrote: > > > > Note that I had to revert commit e5bf5ee26663 ("functionfs: fix the > > open/removal races") from the stable backports, as it was causing issues > > on the pixel devices it got backported to. So perhaps look there? > > Hmm. That commit is obviously still upstream, do we understand why it > caused problems in the backports? This is all I've seen: | It has been reported to cause test problems in Android devices. As the | other functionfs changes were not also backported at the same time, | something is out of sync. So just revert this one for now and it can | come back in the future as a patch series if it is tested. My apologies for not following up on that one; Greg, could you give some references to those reports?