reiser4: metadata checksums - take 2

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b4 am [email protected]

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#	Subject and files	Size	Replies
1/3	reiser4: add metadata checksums support`fs/reiser4/Makefile` `fs/reiser4/checksum.c` `fs/reiser4/checksum.h` +9 more	+133 ~~-13~~	0 replies
2/3	reiser4: fixup status writes`fs/reiser4/status_flags.c`	+1 -0	0 replies
3/3	reiser4: release format 4.0.1`fs/reiser4/plugin/disk_format/disk_format40.c` `fs/reiser4/plugin/node/node.h` `fs/reiser4/plugin/plugin.h` +1 more	+33 ~~-22~~	0 replies

No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.

Cover letter [PATCH 0/3] reiser4: metadata checksums - take 2

The same as previous series plus handling case of failed checksum verification (instead of just issuing warnings).