From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:40434 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754365AbcA0KOz (ORCPT ); Wed, 27 Jan 2016 05:14:55 -0500 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 118EDAAC4 for ; Wed, 27 Jan 2016 10:14:53 +0000 (UTC) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH] btrfs: sysfs: check initialization state before updating features Date: Wed, 27 Jan 2016 11:14:39 +0100 Message-Id: <1453889679-25588-1-git-send-email-dsterba@suse.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: If the mount phase is not finished, we can't update the sysfs files. Reported-by: Chris Mason Signed-off-by: David Sterba --- fs/btrfs/sysfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 6986886243bf..1ae146a8093c 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -804,6 +804,9 @@ void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info, fs_devs = fs_info->fs_devices; fsid_kobj = &fs_devs->fsid_kobj; + if (!fsid_kobj.state_initialized) + return; + /* * FIXME: this is too heavy to update just one value, ideally we'd like * to use sysfs_update_group but some refactoring is needed first. -- 1.8.4.5