glusterd: Get the local txn_info based on trans_id in op_sm call backs.

Issue: when two or more transactions are running concurrently in op_sm,
global op_info might get corrupted.

Fix: Get local txn_info based on trans_id instead of using global txn_info for
commands (re-balance, profile ) which are using op_sm in originator.

TODO: Handle errors properly in call backs and completely remove the global op_info from
op_sm.
Backport of:
>Change-Id: I9d61388acc125841ddc77e2bd560cb7f17ae0a5a
>BUG: 1229139
>Signed-off-by: anand <anekkunt@redhat.com>
>Reviewed-on: http://review.gluster.org/11120
>Tested-by: Gluster Build System <jenkins@build.gluster.com>
>Tested-by: NetBSD Build System <jenkins@build.gluster.org>
>Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
(cherry picked from commit c9765bcb1557ab1e921080e7de4f3ebac1e424d5)

Change-Id: I4405a4a1cf4c853b5d2ce478fd65043e45a79826
BUG: 1230523
Signed-off-by: anand <anekkunt@redhat.com>
Reviewed-on: http://review.gluster.org/11557
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>

1 files changed, 14 insertions, 38 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
index 49c1c9ce2cc..12edd7feccf 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
@@ -1231,11 +1231,6 @@ out:
 
         rcu_read_unlock ();
 
-        switch (rsp.op) {
-        case GD_OP_REPLACE_BRICK:
-                glusterd_rb_use_rsp_dict (NULL, dict);
-                break;
-        }
 
         ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL);
 
@@ -1268,7 +1263,7 @@ int32_t
 __glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov,
                           int count, void *myframe)
 {
-        gd1_mgmt_commit_op_rsp         rsp   = {{0},};
+        gd1_mgmt_commit_op_rsp        rsp   = {{0},};
         int                           ret   = -1;
         int32_t                       op_ret = -1;
         glusterd_op_sm_event_type_t   event_type = GD_OP_EVENT_NONE;
@@ -1279,6 +1274,7 @@ __glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov,
         xlator_t                      *this = NULL;
         glusterd_conf_t               *priv = NULL;
         uuid_t                        *txn_id = NULL;
+        glusterd_op_info_t            txn_op_info = {{0},};
 
         this = THIS;
         GF_ASSERT (this);
@@ -1348,6 +1344,14 @@ __glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov,
         gf_msg_debug (this->name, 0, "transaction ID = %s",
                 uuid_utoa (*txn_id));
 
+        ret = glusterd_get_txn_opinfo (txn_id, &txn_op_info);
+        if (ret) {
+                gf_msg (this->name, GF_LOG_ERROR, 0,
+                        GD_MSG_TRANS_OPINFO_GET_FAIL,
+                        "Failed to get txn_op_info "
+                        "for txn_id = %s", uuid_utoa (*txn_id));
+        }
+
         rcu_read_lock ();
         peerinfo = glusterd_peerinfo_find (rsp.uuid, NULL);
         if (peerinfo == NULL) {
@@ -1377,51 +1381,23 @@ __glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov,
                 }
         } else {
                 event_type = GD_OP_EVENT_RCVD_ACC;
-                switch (rsp.op) {
-                case GD_OP_REPLACE_BRICK:
-                        ret = glusterd_rb_use_rsp_dict (NULL, dict);
-                        if (ret)
-                                goto unlock;
-                break;
+                GF_ASSERT (rsp.op == txn_op_info.op);
 
-                case GD_OP_SYNC_VOLUME:
-                        ret = glusterd_sync_use_rsp_dict (NULL, dict);
-                        if (ret)
-                                goto unlock;
-                break;
+                switch (rsp.op) {
 
                 case GD_OP_PROFILE_VOLUME:
-                        ret = glusterd_profile_volume_use_rsp_dict (NULL, dict);
-                        if (ret)
-                                goto unlock;
-                break;
-
-                case GD_OP_GSYNC_SET:
-                        ret = glusterd_gsync_use_rsp_dict (NULL, dict, rsp.op_errstr);
-                        if (ret)
-                                goto unlock;
-                break;
-
-                case GD_OP_STATUS_VOLUME:
-                        ret = glusterd_volume_status_copy_to_op_ctx_dict (NULL, dict);
+                        ret = glusterd_profile_volume_use_rsp_dict (txn_op_info.op_ctx, dict);
                         if (ret)
                                 goto unlock;
                 break;
 
                 case GD_OP_REBALANCE:
                 case GD_OP_DEFRAG_BRICK_VOLUME:
-                        ret = glusterd_volume_rebalance_use_rsp_dict (NULL, dict);
+                        ret = glusterd_volume_rebalance_use_rsp_dict (txn_op_info.op_ctx, dict);
                         if (ret)
                                 goto unlock;
                 break;
 
-                case GD_OP_HEAL_VOLUME:
-                        ret = glusterd_volume_heal_use_rsp_dict (NULL, dict);
-                        if (ret)
-                                goto unlock;
-
-                break;
-
                 default:
                 break;
                 }