core: xlator option framework cleanups

- Upon init/reconf, if an option is not in the opt dict,
  and a default value is neither specified, null it out.
  With this, the xlator config data that comes
  out of init/reconf becomes deterministic in terms
  of the xlator option declarations and the incoming
  option value dictionary. (Needed for correct operation
  of volume reset.)

- We can rely bravely on the guarantee given by init/reconf
  as of which no NULL value is passed to the converter
  functions. Drop the spurious null check of not_null(),
  and rebaptize it to pass().

Change-Id: Ifa068bcc0275456c01ed00a3a315a985eb262e49
BUG: 765147
Signed-off-by: Csaba Henk <csaba@redhat.com>
Reviewed-on: http://review.gluster.com/3505
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

0 files changed, 0 insertions, 0 deletions