read-only: read-only/worm translator should be in brick graph by default

Problem:
read-only/worm translator is not loaded by default in brick graph because of which
when read-only option is set through volume set volume still remains writable
untill the bricks are restarted as the translator does not have an inmemory flag
to decide whether the read-only/worm option is turned or not.

Solution:
read-only/worm should be loaded by default in brick graph and the read-only/worm
option can be toggled through volume set command. read-only/worm translator now'
has an in-memory flag to decide whether the volume is read-only or not and based
on that either reject the fop or proceed.

Change-Id: Ic79328698f6a72c50433cff15ecadb1a92acc643
BUG: 1134822
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: http://review.gluster.org/8571
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/xlators/features/read-only/src/read-only.h b/xlators/features/read-only/src/read-only.h
new file mode 100644
index 00000000000..8e7e1b68081
--- /dev/null
+++ b/xlators/features/read-only/src/read-only.h
@@ -0,0 +1,21 @@
+/*
+   Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
+   This file is part of GlusterFS.
+
+   This file is licensed to you under your choice of the GNU Lesser
+   General Public License, version 3 or any later version (LGPLv3 or
+   later), or the GNU General Public License, version 2 (GPLv2), in all
+   cases as published by the Free Software Foundation.
+*/
+
+#ifndef __READONLY_H__
+#define __READONLY_H__
+
+#include "read-only-mem-types.h"
+#include "xlator.h"
+
+typedef struct {
+        gf_boolean_t      readonly_or_worm_enabled;
+} read_only_priv_t;
+
+#endif