Improve default ZFS disk layout (tested):

+ For GPT, always provision zfs# partition after swap [for resizability]
+ For MBR, always use a boot pool to relialy place root vdevs at EOD
NB: Fixes edge-cases where MBR combination failed boot (e.g. swap-less)
+ Generalize boot pool logic so it can be used for any scheme (namely MBR)
+ Update existing comments and some whitespace fixes
+ Change some variable names to make reading/debugging the code easier
  in zfs_create_boot() (namely prepend zroot_ or bootpool_ to property)
+ Because zroot vdevs are at EOD, no longer need to calculate partsize
  (vdev consumes remaining space after allocating swap)
+ Optimize processing of disks -- no reason to loop over the disks 3-4
  separate times when we can logically use a single loop to do everything

Discussed on:	-stable
MFC after:	3 days

0 files changed, 0 insertions, 0 deletions