hw/9pfs: Add yield support for mkdir coroutine

Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

hw/9pfs/codir.c

@@ -64,3 +64,22 @@ void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
             s->ops->rewinddir(&s->ctx, fidp->fs.dir);
         });
 }
+
+int v9fs_co_mkdir(V9fsState *s, char *name, mode_t mode, uid_t uid, gid_t gid)
+{
+    int err;
+    FsCred cred;
+
+    cred_init(&cred);
+    cred.fc_mode = mode;
+    cred.fc_uid = uid;
+    cred.fc_gid = gid;
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->mkdir(&s->ctx, name, &cred);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    return err;
+}

hw/9pfs/virtio-9p-coth.h

@@ -73,4 +73,5 @@ extern int v9fs_co_lgetxattr(V9fsState *, V9fsString *,
                              V9fsString *, void *, size_t);
 extern int v9fs_co_mknod(V9fsState *, V9fsString *, uid_t,
                          gid_t, dev_t, mode_t);
+extern int v9fs_co_mkdir(V9fsState *, char *, mode_t, uid_t, gid_t);
 #endif