19 Jun
2018
19 Jun
'18
8:41 p.m.
On Mon, Jun 11, 2018 at 02:14:33PM +0300, Yevgeny Popovych wrote:
This is the case when reading freshly created filesystem. The error message is like the following: btrfs_read_superblock: No valid root_backup found!
Since the data from super_roots/root_backups is not actually used - decided to rework btrfs_newest_root_backup() into btrfs_check_super_roots() that will only check if super_roots array is valid and correctly handle empty scenario.
As a result:
- btrfs_read_superblock() now only checks if super_roots array is valid; the case when it is empty is considered OK.
- removed root_backup pointer from btrfs_info, which would be NULL in case of empty super_roots.
- btrfs_read_superblock() verifies number of devices from the superblock itself, not newest root_backup.
Signed-off-by: Yevgeny Popovych yevgenyp@pointgrab.com Cc: Marek Behun marek.behun@nic.cz Cc: Sergey Struzh sergeys@pointgrab.com
Applied to u-boot/master, thanks!
--
Tom