tree c98c2b64a1e8103b37f6e09401fd13e03a88f766
parent 9642a1d29d8d1034039344bdd0cf55f71b5c16c8
author Coly Li <colyli@suse.de> 1597594526 +0800
committer Coly Li <colyli@suse.de> 1597665668 +0800

bcache-tools: define separated super block for in-memory and on-disk format

This patch syncrhonizes the super block definition from bcache kernel
code, now the original super block structure is changed into two,
- struct cache_sb_disk
  This is for on-disk bcache super block format, which is exactly same
  as original struct cache_sb.
- struct cache_sb
  This is only for in-memory super block, it is no longer exactly
  mapping to the members and offsets to the cache_sb_disk.

Most part of the patch is to make source code to be consistent to the
data structures change.

Signed-off-by: Coly Li <colyli@suse.de>