meta: (re-)Implement Meta translator

The meta translator exposes details about glusterfs itself
in the form of a virtual namespace.

Loading the translator on the client side creates the
meta virtual view under $mntpoint/.meta by default. The
directory is not listed (even with ls -a) and can be
accessed by doing a "cd /mnt/.meta"

Change-Id: I5ffdf39203841a9562a8280a1f79dc76d4dded5d
BUG: 1089216
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/7509
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>

1 files changed, 0 insertions, 57 deletions

diff --git a/xlators/meta/src/misc.c b/xlators/meta/src/misc.c
deleted file mode 100644
index 1a8dfa8068d..00000000000
--- a/xlators/meta/src/misc.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
-   Copyright (c) 2006-2012 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.
-*/
-#include <unistd.h>
-#include <sys/uio.h>
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include "xlator.h"
-#include "meta.h"
-
-#define min(x,y)   ((x) < (y) ? (x) : (y))
-
-/* /.meta/version */
-static const char *version_str = PACKAGE_NAME " " PACKAGE_VERSION "\n";
-
-int32_t
-meta_version_readv (call_frame_t *frame, xlator_t *this,
-		    dict_t *fd, size_t size, off_t offset)
-{
-  static int version_size;
-  version_size = strlen (version_str);
-  
-  struct iovec vec;
-  vec.iov_base = version_str + offset;
-  vec.iov_len  = min (version_size - offset, size);
-
-  STACK_UNWIND (frame, vec.iov_len, 0, &vec, 1);
-  return 0;
-}
-
-int32_t
-meta_version_getattr (call_frame_t *frame, 
-			      xlator_t *this,
-			      const char *path)
-{
-  meta_private_t *priv = (meta_private_t *) this->private;
-  meta_dirent_t *root = priv->tree;
-  meta_dirent_t *file = lookup_meta_entry (root, path, NULL);
-  file->stbuf->st_size = strlen (version_str);
-  STACK_UNWIND (frame, 0, 0, file->stbuf);
-}
-
-struct xlator_fops meta_version_fops = {
-  .readv   = meta_version_readv,
-  .getattr = meta_version_getattr
-};
-