commit 8f4d1ca58fb7e1b9d6109a93bdab891b92cfd940
author Arun R Bharadwaj <arun@linux.vnet.ibm.com> Wed Jul 28 14:10:22 2010 +0530
committer Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Wed Sep 08 22:58:40 2010 +0530
tree 605c77d3224135a9425c0f55f29a93f0e53b54ae
parent cf03eb2c18019e484ce1f436373e90e18835fb77

[virtio-9p] This patch implements TLERROR/RLERROR on the qemu 9P server.

Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>

hw/virtio-9p.c

diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c
index 60a40b9..4b15ce7 100644
--- a/hw/virtio-9p.c
+++ b/hw/virtio-9p.c
@@ -844,17 +844,24 @@
     int8_t id = pdu->id + 1; /* Response */
 
     if (len < 0) {
-        V9fsString str;
         int err = -len;
-
-        str.data = strerror(err);
-        str.size = strlen(str.data);
-
         len = 7;
-        len += pdu_marshal(pdu, len, "s", &str);
+
+        if (s->proto_version != V9FS_PROTO_2000L) {
+            V9fsString str;
+
+            str.data = strerror(err);
+            str.size = strlen(str.data);
+
+            len += pdu_marshal(pdu, len, "s", &str);
+            id = P9_RERROR;
+        }
+
         len += pdu_marshal(pdu, len, "d", err);
 
-        id = P9_RERROR;
+        if (s->proto_version == V9FS_PROTO_2000L) {
+            id = P9_RLERROR;
+        }
     }
 
     /* fill out the header */