staging: lustre: obd: create it_has_reply_body()

The lookup_intent it_op fields in many cases will be compared
to the settings of IT_OPEN | IT_UNLINK | IT_LOOKUP | IT_GETATTR.
Create a simple inline function for this common case.
Signed-off-by: Vitaly Fertman <vitaly.fertman@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7433
Seagate-bug-id: MRP-3072 MRP-3137
Reviewed-on: http://review.whamcloud.com/17220Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@seagate.com>
Tested-by: Elena V. Gryaznova <elena.gryaznova@seagate.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/include/obd.h

@@ -686,6 +686,16 @@ enum md_cli_flags {
 	CLI_MIGRATE	= BIT(4),
 };
 
+/**
+ * GETXATTR is not included as only a couple of fields in the reply body
+ * is filled, but not FID which is needed for common intent handling in
+ * mdc_finish_intent_lock()
+ */
+static inline bool it_has_reply_body(const struct lookup_intent *it)
+{
+	return it->it_op & (IT_OPEN | IT_UNLINK | IT_LOOKUP | IT_GETATTR);
+}
+
 struct md_op_data {
 	struct lu_fid	   op_fid1; /* operation fid1 (usually parent) */
 	struct lu_fid	   op_fid2; /* operation fid2 (usually child) */

drivers/staging/lustre/lustre/mdc/mdc_locks.c

@@ -568,7 +568,7 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 		  it->it_op, it->it_disposition, it->it_status);
 
 	/* We know what to expect, so we do any byte flipping required here */
-	if (it->it_op & (IT_OPEN | IT_UNLINK | IT_LOOKUP | IT_GETATTR)) {
+	if (it_has_reply_body(it)) {
 		struct mdt_body *body;
 
 		body = req_capsule_server_get(pill, &RMF_MDT_BODY);