xlator: make 'xlator_api' mandatory

* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing

NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.

fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi <amarts@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/xlators/features/namespace/src/namespace.c b/xlators/features/namespace/src/namespace.c
index e56cf248076..59045e8647b 100644
--- a/xlators/features/namespace/src/namespace.c
+++ b/xlators/features/namespace/src/namespace.c
@@ -1330,3 +1330,16 @@ struct volume_options options[] = {
     },
     {.key = {NULL}},
 };
+
+xlator_api_t xlator_api = {
+    .init = init,
+    .fini = fini,
+    .reconfigure = reconfigure,
+    .op_version = {GD_OP_VERSION_3_12_0},
+    .dumpops = &dumpops,
+    .fops = &fops,
+    .cbks = &cbks,
+    .options = options,
+    .identifier = "namespace",
+    .category = GF_TECH_PREVIEW,
+};