xlator options: revamp xlator option validation/reconfigure code

- move option handling to options.c (new file)
- remove duplication of option validation code
- remove duplication of gf_log / sprintf
- get rid of xlator_t->validate_options
- get rid of option validation in rpc-transport
- get rid of validate_options() in every xlator
- use xlator_volume_option_get to clean up many functions
- introduce primitives to init/reconfigure option types

Change-Id: I51798af72c8dc0a2b9e017424036eb3667dfc7ff
BUG: 3415
Reviewed-on: http://review.gluster.com/235
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@gluster.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/libglusterfs/src/globals.c b/libglusterfs/src/globals.c
index d1985b7ed04..70c6c92ef60 100644
--- a/libglusterfs/src/globals.c
+++ b/libglusterfs/src/globals.c
@@ -154,6 +154,8 @@ glusterfs_this_init ()
         global_xlator.type = "global";
         global_xlator.ctx  = glusterfs_ctx;
 
+        INIT_LIST_HEAD (&global_xlator.volume_options);
+
         return ret;
 }