提交 f8c5d0b4 编写于 作者: L Liu Bo 提交者: Josef Bacik

Btrfs: fix wrong error returned by adding a device

Reproduce:
$ mkfs.btrfs /dev/sdb7
$ mount /dev/sdb7 /mnt/btrfs -o ro
$ btrfs dev add /dev/sdb8 /mnt/btrfs
ERROR: error adding the device '/dev/sdb8' - Invalid argument

Since we mount with readonly options, and /dev/sdb7 is not a seeding one,
a readonly notification is preferred.
Signed-off-by: NLiu Bo <liubo2009@cn.fujitsu.com>
Reviewed-by: NJosef Bacik <josef@redhat.com>
上级 5fd02043
......@@ -1633,7 +1633,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
int ret = 0;
if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
return -EINVAL;
return -EROFS;
bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
root->fs_info->bdev_holder);
......
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