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| author | David Sterba <dsterba@suse.cz> | 2013-03-06 15:57:46 +0100 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-05-07 10:50:27 -0400 |
| commit | 1104a8855109a4051d74977f819a13b4516aa11e (patch) | |
| tree | c81894968089f010c293bbba501a18e6331204e1 /fs/btrfs/scrub.c | |
| parent | b6919a58f09db5daaa29b0326d53513ee418b84b (diff) | |
| download | op-kernel-dev-1104a8855109a4051d74977f819a13b4516aa11e.zip op-kernel-dev-1104a8855109a4051d74977f819a13b4516aa11e.tar.gz | |
btrfs: enhance superblock checks
The superblock checksum is not verified upon mount. <awkward silence>
Add that check and also reorder existing checks to a more logical
order.
Current mkfs.btrfs does not calculate the correct checksum of
super_block and thus a freshly created filesytem will fail to mount when
this patch is applied.
First transaction commit calculates correct superblock checksum and
saves it to disk.
Reproducer:
$ mfks.btrfs /dev/sda
$ mount /dev/sda /mnt
$ btrfs scrub start /mnt
$ sleep 5
$ btrfs scrub status /mnt
... super:2 ...
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/scrub.c')
0 files changed, 0 insertions, 0 deletions
