[PATCH] ceph: add __send_request helper

[xiubli@xxxxxxxxxx]

From: Xiubo Li <xiubli@xxxxxxxxxx>

Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx>
---
 fs/ceph/mds_client.c | 47 +++++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index e47341da5a71..82dfc85b24ee 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2514,6 +2514,26 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
 	return 0;
 }
 
+/*
+ * called under mdsc->mutex
+ */
+static int __send_request(struct ceph_mds_client *mdsc,
+			  struct ceph_mds_session *session,
+			  struct ceph_mds_request *req,
+			  bool drop_cap_releases)
+{
+	int err;
+
+	err = __prepare_send_request(mdsc, req, session->s_mds,
+				     drop_cap_releases);
+	if (!err) {
+		ceph_msg_get(req->r_request);
+		ceph_con_send(&session->s_con, req->r_request);
+	}
+
+	return err;
+}
+
 /*
  * send request, or put it on the appropriate wait list.
  */
@@ -2603,11 +2623,7 @@ static void __do_request(struct ceph_mds_client *mdsc,
 	if (req->r_request_started == 0)   /* note request start time */
 		req->r_request_started = jiffies;
 
-	err = __prepare_send_request(mdsc, req, mds, false);
-	if (!err) {
-		ceph_msg_get(req->r_request);
-		ceph_con_send(&session->s_con, req->r_request);
-	}
+	err = __send_request(mdsc, session, req, false);
 
 out_session:
 	ceph_put_mds_session(session);
@@ -3210,7 +3226,6 @@ static void handle_session(struct ceph_mds_session *session,
 	return;
 }
 
-
 /*
  * called under session->mutex.
  */
@@ -3219,18 +3234,12 @@ static void replay_unsafe_requests(struct ceph_mds_client *mdsc,
 {
 	struct ceph_mds_request *req, *nreq;
 	struct rb_node *p;
-	int err;
 
 	dout("replay_unsafe_requests mds%d\n", session->s_mds);
 
 	mutex_lock(&mdsc->mutex);
-	list_for_each_entry_safe(req, nreq, &session->s_unsafe, r_unsafe_item) {
-		err = __prepare_send_request(mdsc, req, session->s_mds, true);
-		if (!err) {
-			ceph_msg_get(req->r_request);
-			ceph_con_send(&session->s_con, req->r_request);
-		}
-	}
+	list_for_each_entry_safe(req, nreq, &session->s_unsafe, r_unsafe_item)
+		__send_request(mdsc, session, req, true);
 
 	/*
 	 * also re-send old requests when MDS enters reconnect stage. So that MDS
@@ -3245,14 +3254,8 @@ static void replay_unsafe_requests(struct ceph_mds_client *mdsc,
 		if (req->r_attempts == 0)
 			continue; /* only old requests */
 		if (req->r_session &&
-		    req->r_session->s_mds == session->s_mds) {
-			err = __prepare_send_request(mdsc, req,
-						     session->s_mds, true);
-			if (!err) {
-				ceph_msg_get(req->r_request);
-				ceph_con_send(&session->s_con, req->r_request);
-			}
-		}
+		    req->r_session->s_mds == session->s_mds)
+			__send_request(mdsc, session, req, true);
 	}
 	mutex_unlock(&mdsc->mutex);
 }
-- 
2.21.0