tree 28a101875f7d608de81bae6df62f4f4077888270
parent 3447cdc741214db36f47dd1138b12215a070efa6
author Randall Huang <huangrandall@google.com> 1591772378 +0800
committer Randall Huang <huangrandall@google.com> 1591855487 +0800

Try to recover corrupted ext4 /data with backup superblock

If the superblock of /data is corrupted, fs_mgr would skip check_fs.
But, e2fsck actually may reference backup superblock to recover
the filesystem. This fix gives fs_mgr second chance to fix corrupted
ext4 /data.

Bug: 156200421
Test: boot with corrupted ext4 superblock

Signed-off-by: Randall Huang <huangrandall@google.com>
Change-Id: Ia39af3340c0e241f62557b7c2cc8b800443342f9