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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AD4FC433DB for ; Mon, 8 Feb 2021 22:12:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6C1264E9A for ; Mon, 8 Feb 2021 22:12:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230236AbhBHWMN (ORCPT ); Mon, 8 Feb 2021 17:12:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:44854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229750AbhBHWMM (ORCPT ); Mon, 8 Feb 2021 17:12:12 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id E849B64E82; Mon, 8 Feb 2021 22:11:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1612822289; bh=8Qd2XOyZpSHRqxM+XytuIpAlEHoruMXtS3IoaPxIDmo=; h=Date:From:To:Subject:From; b=N8B2GcN1ZO8Qh68ND2cmE3H6tmnY57C9SAvOZyHGmMibnxgqS4SgHWybifmQrKjT1 3NllzAGKfRorufNTF4cHnRjafbJB3L7imsx2bFbKqHqUsqM+JjOwInhwVAHugSA23S ZIgwQ1Zvg/V0Aq8dodOPxHUoe7iLBb0wPOpGV/o0= Date: Mon, 08 Feb 2021 14:11:28 -0800 From: akpm@linux-foundation.org To: amir73il@gmail.com, chris@chrisdown.name, ink@jurassic.park.msu.ru, mattst88@gmail.com, mm-commits@vger.kernel.org, rth@twiddle.net, seth.forshee@canonical.com, stable@vger.kernel.org Subject: + tmpfs-disallow-config_tmpfs_inode64-on-alpha.patch added to -mm tree Message-ID: <20210208221128.SYbII5IxC%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha has been added to the -mm tree. Its filename is tmpfs-disallow-config_tmpfs_inode64-on-alpha.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/tmpfs-disallow-config_tmpfs_inode64-on-alpha.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/tmpfs-disallow-config_tmpfs_inode64-on-alpha.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Seth Forshee Subject: tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha As with s390, alpha is a 64-bit architecture with a 32-bit ino_t. With CONFIG_TMPFS_INODE64=y tmpfs mounts will get 64-bit inode numbers and display "inode64" in the mount options, whereas passing "inode64" in the mount options will fail. This leads to erroneous behaviours such as this: # mkdir mnt # mount -t tmpfs nodev mnt # mount -o remount,rw mnt mount: /home/ubuntu/mnt: mount point not mounted or bad option. Prevent CONFIG_TMPFS_INODE64 from being selected on alpha. Link: https://lkml.kernel.org/r/20210208215726.608197-1-seth.forshee@canonical.com Fixes: ea3271f7196c ("tmpfs: support 64-bit inums per-sb") Signed-off-by: Seth Forshee Cc: Chris Down Cc: Amir Goldstein Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: [5.9+] Signed-off-by: Andrew Morton --- fs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/Kconfig~tmpfs-disallow-config_tmpfs_inode64-on-alpha +++ a/fs/Kconfig @@ -203,7 +203,7 @@ config TMPFS_XATTR config TMPFS_INODE64 bool "Use 64-bit ino_t by default in tmpfs" - depends on TMPFS && 64BIT && !S390 + depends on TMPFS && 64BIT && !(S390 || ALPHA) default n help tmpfs has historically used only inode numbers as wide as an unsigned _ Patches currently in -mm which might be from seth.forshee@canonical.com are tmpfs-disallow-config_tmpfs_inode64-on-s390.patch tmpfs-disallow-config_tmpfs_inode64-on-alpha.patch