[dm-cache] check the metadata version when we read the superblock
Merge remote-tracking branch 'remotes/github-heinz/cache-coherency-changes' into cache-coherency-changes
[dm-cache] remove some Kconfig entries
[drivers/md/Kconfig] move a couple of cache policies to the test targets section
whitespace
[dm-cache] hints test policy wasn't emitting the status line correctly.
Merge Mike's changes
[dm-cache] Use an incompat flag for the new variable hint size functionality
[persistent-data] remove duplicate declaration of dm_bm_prefetch
[drivers/md/Kconfig] move a couple of cache policies to the test targets section
[dm-cache] optimize mq policy by using find_next_zero_bit() in find_free_cblock()
fluff
Add debug policy
[dm-cache] avoid '+' in shim policy names and their respectove file names
[dm-cache] fix Makefile WRT '+' in shim policy file names
[dm-cache] fix Kconfig WRT '+' in shim policy file names
[dm-cache] initialize shim policy type flag in the nasic and background policies
allow basic module to compile