Tao Bao 007979ee75 Add support for clobbered blocks
In ext4 filesystems, some blocks might be changed even being mounted
R/O, such as the superblock (block 0). We need to exclude such blocks
from integrity verification. Plus such blocks should always be
written to the target by copying instead of patching.

Bug: http://b/20939131
Change-Id: If9efab3d7a0071a87b4d4297daf7963c3b818afe
(cherry picked from commit ff7778166b)
2015-08-11 21:02:45 -07:00
2014-05-14 16:55:04 -07:00
2015-08-11 21:02:45 -07:00
2014-07-22 17:42:35 -07:00
2014-11-05 05:03:45 +00:00
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