@@ -589,6 +589,23 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
goto error;
}
+ /* Server grabs uid information from the fid but we need to fix
+ * gid as dotu doesn't support sending gid on the wire with Tcreate.
+ * hardlink is an exception as it inherits all credentials.
+ */
+ if (v9fs_proto_dotu(v9ses) && !(perm & P9_DMLINK)) {
+ struct p9_wstat wstat;
+
+ v9fs_blank_wstat(&wstat);
+ wstat.n_gid = v9fs_get_fsgid_for_create(dentry->d_parent);
+ err = p9_client_wstat(fid, &wstat);
+ if (err < 0) {
+ P9_DPRINTK(P9_DEBUG_VFS, "p9_client_wstat failed %d\n",
+ err);
+ goto error;
+ }
+ }
+
/* instantiate inode and assign the unopened fid to the dentry */
inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {