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, 14 insertions, 3 deletions

diff --git a/xlators/features/sdfs/src/sdfs.c b/xlators/features/sdfs/src/sdfs.c
index 5dbe0653cbc..132f97ca4ea 100644
--- a/xlators/features/sdfs/src/sdfs.c
+++ b/xlators/features/sdfs/src/sdfs.c
@@ -1425,12 +1425,11 @@ out:
     return ret;
 }
 
-int
+void
 fini(xlator_t *this)
 {
     mem_pool_destroy(this->local_pool);
-
-    return 0;
+    return;
 }
 
 struct xlator_fops fops = {
@@ -1458,3 +1457,15 @@ struct volume_options options[] = {
      .description = "Enable/Disable dentry serialize functionality"},
     {.key = {NULL}},
 };
+
+xlator_api_t xlator_api = {
+    .init = init,
+    .fini = fini,
+    .reconfigure = reconfigure,
+    .op_version = {GD_OP_VERSION_4_0_0},
+    .fops = &fops,
+    .cbks = &cbks,
+    .options = options,
+    .identifier = "sdfs",
+    .category = GF_TECH_PREVIEW,
+};