From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:61986 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751549Ab2LUJTX (ORCPT ); Fri, 21 Dec 2012 04:19:23 -0500 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id qBL9L5ix026444 for ; Fri, 21 Dec 2012 17:21:05 +0800 Message-ID: <50D429B7.2090404@cn.fujitsu.com> Date: Fri, 21 Dec 2012 17:19:51 +0800 From: Miao Xie Reply-To: miaox@cn.fujitsu.com MIME-Version: 1.0 To: Linux Btrfs Subject: [PATCH 2/3] Btrfs: fix resize a readonly device Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: We should not resize a readonly device, fix it. Signed-off-by: Miao Xie --- fs/btrfs/ioctl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 679b82c..668475c 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1364,6 +1364,7 @@ static noinline int btrfs_ioctl_resize(struct file *file, printk(KERN_INFO "btrfs: resizing devid %llu\n", (unsigned long long)devid); } + device = btrfs_find_device(root->fs_info, devid, NULL, NULL); if (!device) { printk(KERN_INFO "btrfs: resizer unable to find device %llu\n", @@ -1371,9 +1372,10 @@ static noinline int btrfs_ioctl_resize(struct file *file, ret = -EINVAL; goto out_free; } - if (device->fs_devices && device->fs_devices->seeding) { + + if (!device->writeable) { printk(KERN_INFO "btrfs: resizer unable to apply on " - "seeding device %llu\n", + "readonly device %llu\n", (unsigned long long)devid); ret = -EINVAL; goto out_free; -- 1.7.11.7