[PATCH 0/9] CRC support for superblock, ag headers, log and btree blocks

[Christoph Hellwig <hch@xxxxxx>]

Here's an updated crc series for various metadata structures.  We're still
looking at the magic number in the log recovery case because getting down
a buffer type for the other structures wasn't quite as easy as for the
btree block.  I'll probably look into that again once we're done with all
data structures.

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