shard.c: fix clang warnings

Fix the following warning that are seen when compiling with clang:

make[4]: Entering directory '/home/ykaul/github/glusterfs/xlators/features/shard/src'
  CC       shard.lo
shard.c:1292:38: warning: cast to smaller integer type 'shard_internal_dir_type_t' from 'void *' [-Wvoid-pointer-to-enum-cast]
 1292 |     shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
shard.c:1373:38: warning: cast to smaller integer type 'shard_internal_dir_type_t' from 'void *' [-Wvoid-pointer-to-enum-cast]
 1373 |     shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
shard.c:5892:38: warning: cast to smaller integer type 'shard_internal_dir_type_t' from 'void *' [-Wvoid-pointer-to-enum-cast]
 5892 |     shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Yaniv Kaul <[email protected]>

Author: mykaul

xlators/features/shard/src/shard.c

@@ -1289,7 +1289,7 @@ shard_refresh_internal_dir_cbk(call_frame_t *frame, void *cookie,
 {
     shard_local_t *local = NULL;
     inode_t *linked_inode = NULL;
-    shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
+    shard_internal_dir_type_t type = (shard_internal_dir_type_t)(unsigned long)cookie;
 
     local = frame->local;
 
@@ -1370,7 +1370,7 @@ shard_lookup_internal_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
 {
     inode_t *link_inode = NULL;
     shard_local_t *local = NULL;
-    shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
+    shard_internal_dir_type_t type = (shard_internal_dir_type_t)(unsigned long)cookie;
 
     local = frame->local;
 
@@ -5889,7 +5889,7 @@ shard_mkdir_internal_dir_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
 {
     inode_t *link_inode = NULL;
     shard_local_t *local = NULL;
-    shard_internal_dir_type_t type = (shard_internal_dir_type_t)cookie;
+    shard_internal_dir_type_t type = (shard_internal_dir_type_t)(unsigned long)cookie;
 
     local = frame->local;