Added all files

3 files changed, 1797 insertions, 0 deletions

diff --git a/xlators/debug/error-gen/Makefile.am b/xlators/debug/error-gen/Makefile.am
new file mode 100644
index 00000000000..d471a3f9243
--- /dev/null
+++ b/xlators/debug/error-gen/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = src
+
+CLEANFILES = 
diff --git a/xlators/debug/error-gen/src/Makefile.am b/xlators/debug/error-gen/src/Makefile.am
new file mode 100644
index 00000000000..1bd7f332ca0
--- /dev/null
+++ b/xlators/debug/error-gen/src/Makefile.am
@@ -0,0 +1,14 @@
+
+xlator_LTLIBRARIES = error-gen.la
+xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/debug
+
+error_gen_la_LDFLAGS = -module -avoidversion
+
+error_gen_la_SOURCES = error-gen.c
+error_gen_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
+
+AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS)\
+	-I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS)
+
+CLEANFILES = 
+
diff --git a/xlators/debug/error-gen/src/error-gen.c b/xlators/debug/error-gen/src/error-gen.c
new file mode 100644
index 00000000000..9c0b3253e65
--- /dev/null
+++ b/xlators/debug/error-gen/src/error-gen.c
@@ -0,0 +1,1780 @@
+/*
+  Copyright (c) 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+
+typedef struct {
+	int op_count;
+} eg_t;
+
+int error_gen (xlator_t *this)
+{
+	eg_t *egp = NULL;
+	int count = 0;
+	egp = this->private;
+	count = ++egp->op_count;
+	if((count % 10) == 0) {
+		count = count / 10;
+		if ((count % 2) == 0)
+			return ENOTCONN;
+		else
+			return EIO;
+	}
+	return 0;
+}
+
+static int32_t
+error_gen_lookup_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      inode_t *inode,
+		      struct stat *buf,
+		      dict_t *dict)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      inode,
+		      buf,
+		      dict);
+	return 0;
+}
+
+int32_t
+error_gen_lookup (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *loc,
+		  dict_t *xattr_req)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_lookup_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->lookup,
+		    loc,
+		    xattr_req);
+	return 0;
+}
+
+
+int32_t
+error_gen_forget (xlator_t *this,
+		  inode_t *inode)
+{
+	return 0;
+}
+
+int32_t
+error_gen_stat_cbk (call_frame_t *frame,
+		    void *cookie,
+		    xlator_t *this,
+		    int32_t op_ret,
+		    int32_t op_errno,
+		    struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_stat (call_frame_t *frame,
+		xlator_t *this,
+		loc_t *loc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_stat_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->stat,
+		    loc);
+	return 0;
+}
+
+int32_t
+error_gen_chmod_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_chmod (call_frame_t *frame,
+		 xlator_t *this,
+		 loc_t *loc,
+		 mode_t mode)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_chmod_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->chmod,
+		    loc,
+		    mode);
+	return 0;
+}
+
+
+int32_t
+error_gen_fchmod_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_fchmod (call_frame_t *frame,
+		  xlator_t *this,
+		  fd_t *fd,
+		  mode_t mode)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_fchmod_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fchmod,
+		    fd,
+		    mode);
+	return 0;
+}
+
+int32_t
+error_gen_chown_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_chown (call_frame_t *frame,
+		 xlator_t *this,
+		 loc_t *loc,
+		 uid_t uid,
+		 gid_t gid)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_chown_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->chown,
+		    loc,
+		    uid,
+		    gid);
+	return 0;
+}
+
+int32_t
+error_gen_fchown_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_fchown (call_frame_t *frame,
+		  xlator_t *this,
+		  fd_t *fd,
+		  uid_t uid,
+		  gid_t gid)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_fchown_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fchown,
+		    fd,
+		    uid,
+		    gid);
+	return 0;
+}
+
+int32_t
+error_gen_truncate_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_truncate (call_frame_t *frame,
+		    xlator_t *this,
+		    loc_t *loc,
+		    off_t offset)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_truncate_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->truncate,
+		    loc,
+		    offset);
+	return 0;
+}
+
+int32_t
+error_gen_ftruncate_cbk (call_frame_t *frame,
+			 void *cookie,
+			 xlator_t *this,
+			 int32_t op_ret,
+			 int32_t op_errno,
+			 struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_ftruncate (call_frame_t *frame,
+		     xlator_t *this,
+		     fd_t *fd,
+		     off_t offset)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_ftruncate_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->ftruncate,
+		    fd,
+		    offset);
+	return 0;
+}
+
+int32_t
+error_gen_utimens_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+
+int32_t
+error_gen_utimens (call_frame_t *frame,
+		   xlator_t *this,
+		   loc_t *loc,
+		   struct timespec tv[2])
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_utimens_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->utimens,
+		    loc,
+		    tv);
+	return 0;
+}
+
+int32_t
+error_gen_access_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_access (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *loc,
+		  int32_t mask)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_access_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->access,
+		    loc,
+		    mask);
+	return 0;
+}
+
+
+int32_t
+error_gen_readlink_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			const char *path)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      path);
+	return 0;
+}
+
+int32_t
+error_gen_readlink (call_frame_t *frame,
+		    xlator_t *this,
+		    loc_t *loc,
+		    size_t size)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_readlink_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->readlink,
+		    loc,
+		    size);
+	return 0;
+}
+
+
+int32_t
+error_gen_mknod_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     inode_t *inode,
+		     struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      inode,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_mknod (call_frame_t *frame,
+		 xlator_t *this,
+		 loc_t *loc,
+		 mode_t mode,
+		 dev_t rdev)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_mknod_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->mknod,
+		    loc, mode, rdev);
+	return 0;
+}
+
+int32_t
+error_gen_mkdir_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     inode_t *inode,
+		     struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      inode,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_mkdir (call_frame_t *frame,
+		 xlator_t *this,
+		 loc_t *loc,
+		 mode_t mode)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_mkdir_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->mkdir,
+		    loc, mode);
+	return 0;
+}
+
+int32_t
+error_gen_unlink_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno)
+{
+	STACK_UNWIND (frame, op_ret, op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_unlink (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *loc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_unlink_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->unlink,
+		    loc);
+	return 0;
+}
+
+int32_t
+error_gen_rmdir_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_rmdir (call_frame_t *frame,
+		 xlator_t *this,
+		 loc_t *loc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_rmdir_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->rmdir,
+		    loc);
+	return 0;
+}
+
+
+int32_t
+error_gen_symlink_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       inode_t *inode,
+		       struct stat *buf)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, inode,	buf);
+	return 0;
+}
+
+int32_t
+error_gen_symlink (call_frame_t *frame,
+		   xlator_t *this,
+		   const char *linkpath,
+		   loc_t *loc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_symlink_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->symlink,
+		    linkpath, loc);
+	return 0;
+}
+
+
+int32_t
+error_gen_rename_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      struct stat *buf)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, buf);
+	return 0;
+}
+
+int32_t
+error_gen_rename (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *oldloc,
+		  loc_t *newloc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_rename_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->rename,
+		    oldloc, newloc);
+	return 0;
+}
+
+
+int32_t
+error_gen_link_cbk (call_frame_t *frame,
+		    void *cookie,
+		    xlator_t *this,
+		    int32_t op_ret,
+		    int32_t op_errno,
+		    inode_t *inode,
+		    struct stat *buf)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, inode,	buf);
+	return 0;
+}
+
+int32_t
+error_gen_link (call_frame_t *frame,
+		xlator_t *this,
+		loc_t *oldloc,
+		loc_t *newloc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL);
+		return 0;
+	}
+	STACK_WIND (frame,
+		    error_gen_link_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->link,
+		    oldloc, newloc);
+	return 0;
+}
+
+
+int32_t
+error_gen_create_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      fd_t *fd,
+		      inode_t *inode,
+		      struct stat *buf)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, fd, inode, buf);
+	return 0;
+}
+
+int32_t
+error_gen_create (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *loc,
+		  int32_t flags,
+		  mode_t mode, fd_t *fd)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame, error_gen_create_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->create,
+		    loc, flags, mode, fd);
+	return 0;
+}
+
+int32_t
+error_gen_open_cbk (call_frame_t *frame,
+		    void *cookie,
+		    xlator_t *this,
+		    int32_t op_ret,
+		    int32_t op_errno,
+		    fd_t *fd)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      fd);
+	return 0;
+}
+
+int32_t
+error_gen_open (call_frame_t *frame,
+		xlator_t *this,
+		loc_t *loc,
+		int32_t flags, fd_t *fd)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_open_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->open,
+		    loc, flags, fd);
+	return 0;
+}
+
+int32_t
+error_gen_readv_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     struct iovec *vector,
+		     int32_t count,
+		     struct stat *stbuf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      vector,
+		      count,
+		      stbuf);
+	return 0;
+}
+
+int32_t
+error_gen_readv (call_frame_t *frame,
+		 xlator_t *this,
+		 fd_t *fd,
+		 size_t size,
+		 off_t offset)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, 0, NULL);
+		return 0;
+	}
+
+
+	STACK_WIND (frame,
+		    error_gen_readv_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->readv,
+		    fd,
+		    size,
+		    offset);
+	return 0;
+}
+
+
+int32_t
+error_gen_writev_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      struct stat *stbuf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      stbuf);
+	return 0;
+}
+
+int32_t
+error_gen_writev (call_frame_t *frame,
+		  xlator_t *this,
+		  fd_t *fd,
+		  struct iovec *vector,
+		  int32_t count,
+		  off_t off)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+
+	STACK_WIND (frame,
+		    error_gen_writev_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->writev,
+		    fd,
+		    vector,
+		    count,
+		    off);
+	return 0;
+}
+
+int32_t
+error_gen_flush_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_flush (call_frame_t *frame,
+		 xlator_t *this,
+		 fd_t *fd)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_flush_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->flush,
+		    fd);
+	return 0;
+}
+
+
+int32_t
+error_gen_fsync_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_fsync (call_frame_t *frame,
+		 xlator_t *this,
+		 fd_t *fd,
+		 int32_t flags)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_fsync_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fsync,
+		    fd,
+		    flags);
+	return 0;
+}
+
+int32_t
+error_gen_fstat_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     struct stat *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_fstat (call_frame_t *frame,
+		 xlator_t *this,
+		 fd_t *fd)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_fstat_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fstat,
+		    fd);
+	return 0;
+}
+
+int32_t
+error_gen_opendir_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       fd_t *fd)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      fd);
+	return 0;
+}
+
+int32_t
+error_gen_opendir (call_frame_t *frame,
+		   xlator_t *this,
+		   loc_t *loc, fd_t *fd)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_opendir_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->opendir,
+		    loc, fd);
+	return 0;
+}
+
+
+int32_t
+error_gen_getdents_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			dir_entry_t *entries,
+			int32_t count)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      entries,
+		      count);
+	return 0;
+}
+
+int32_t
+error_gen_getdents (call_frame_t *frame,
+		    xlator_t *this,
+		    fd_t *fd,
+		    size_t size,
+		    off_t offset,
+		    int32_t flag)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, 0);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_getdents_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->getdents,
+		    fd,
+		    size,
+		    offset,
+		    flag);
+	return 0;
+}
+
+
+int32_t
+error_gen_setdents_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_setdents (call_frame_t *frame,
+		    xlator_t *this,
+		    fd_t *fd,
+		    int32_t flags,
+		    dir_entry_t *entries,
+		    int32_t count)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, 0);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_setdents_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->setdents,
+		    fd,
+		    flags,
+		    entries,
+		    count);
+	return 0;
+}
+
+
+int32_t
+error_gen_fsyncdir_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_fsyncdir (call_frame_t *frame,
+		    xlator_t *this,
+		    fd_t *fd,
+		    int32_t flags)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_fsyncdir_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fsyncdir,
+		    fd,
+		    flags);
+	return 0;
+}
+
+
+int32_t
+error_gen_statfs_cbk (call_frame_t *frame,
+		      void *cookie,
+		      xlator_t *this,
+		      int32_t op_ret,
+		      int32_t op_errno,
+		      struct statvfs *buf)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      buf);
+	return 0;
+}
+
+int32_t
+error_gen_statfs (call_frame_t *frame,
+		  xlator_t *this,
+		  loc_t *loc)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_statfs_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->statfs,
+		    loc);
+	return 0;
+}
+
+
+int32_t
+error_gen_setxattr_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_setxattr (call_frame_t *frame,
+		    xlator_t *this,
+		    loc_t *loc,
+		    dict_t *dict,
+		    int32_t flags)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_setxattr_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->setxattr,
+		    loc,
+		    dict,
+		    flags);
+	return 0;
+}
+
+int32_t
+error_gen_getxattr_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			dict_t *dict)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      dict);
+	return 0;
+}
+
+int32_t
+error_gen_getxattr (call_frame_t *frame,
+		    xlator_t *this,
+		    loc_t *loc,
+		    const char *name)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_getxattr_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->getxattr,
+		    loc,
+		    name);
+	return 0;
+}
+
+int32_t
+error_gen_xattrop_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       dict_t *dict)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, dict);
+	return 0;
+}
+
+int32_t
+error_gen_xattrop (call_frame_t *frame,
+		   xlator_t *this,
+		   loc_t *loc,
+		   gf_xattrop_flags_t flags,
+		   dict_t *dict)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_xattrop_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->xattrop,
+		    loc, flags, dict);
+	return 0;
+}
+
+int32_t
+error_gen_fxattrop_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			dict_t *dict)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, dict);
+	return 0;
+}
+
+int32_t
+error_gen_fxattrop (call_frame_t *frame,
+  		    xlator_t *this,
+  		    fd_t *fd,
+  		    gf_xattrop_flags_t flags,
+  		    dict_t *dict)
+{
+  	int op_errno = 0;
+  	op_errno = error_gen(this);
+  	if (op_errno) {
+  		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+  		STACK_UNWIND (frame, -1, op_errno, NULL);
+  		return 0;
+  	}
+
+  	STACK_WIND (frame,
+  		    error_gen_fxattrop_cbk,
+  		    FIRST_CHILD(this),
+  		    FIRST_CHILD(this)->fops->fxattrop,
+  		    fd, flags, dict);
+  	return 0;
+}
+
+int32_t
+error_gen_removexattr_cbk (call_frame_t *frame,
+			   void *cookie,
+			   xlator_t *this,
+			   int32_t op_ret,
+			   int32_t op_errno)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_removexattr (call_frame_t *frame,
+		       xlator_t *this,
+		       loc_t *loc,
+		       const char *name)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_removexattr_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->removexattr,
+		    loc,
+		    name);
+	return 0;
+}
+
+int32_t
+error_gen_lk_cbk (call_frame_t *frame,
+		  void *cookie,
+		  xlator_t *this,
+		  int32_t op_ret,
+		  int32_t op_errno,
+		  struct flock *lock)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      lock);
+	return 0;
+}
+
+int32_t
+error_gen_lk (call_frame_t *frame,
+	      xlator_t *this,
+	      fd_t *fd,
+	      int32_t cmd,
+	      struct flock *lock)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_lk_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->lk,
+		    fd,
+		    cmd,
+		    lock);
+	return 0;
+}
+
+
+int32_t
+error_gen_inodelk_cbk (call_frame_t *frame, void *cookie,
+		       xlator_t *this, int32_t op_ret, int32_t op_errno)
+
+{
+	STACK_UNWIND (frame, op_ret, op_errno);
+	return 0;
+}
+
+
+int32_t
+error_gen_inodelk (call_frame_t *frame, xlator_t *this,
+		   loc_t *loc, int32_t cmd, struct flock *lock)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_inodelk_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->inodelk,
+		    loc, cmd, lock);
+	return 0;
+}
+
+
+int32_t
+error_gen_finodelk_cbk (call_frame_t *frame, void *cookie,
+			xlator_t *this, int32_t op_ret, int32_t op_errno)
+
+{
+	STACK_UNWIND (frame, op_ret, op_errno);
+	return 0;
+}
+
+
+int32_t
+error_gen_finodelk (call_frame_t *frame, xlator_t *this,
+		    fd_t *fd, int32_t cmd, struct flock *lock)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_finodelk_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->finodelk,
+		    fd, cmd, lock);
+	return 0;
+}
+
+
+int32_t
+error_gen_entrylk_cbk (call_frame_t *frame, void *cookie,
+		       xlator_t *this, int32_t op_ret, int32_t op_errno)
+
+{
+	STACK_UNWIND (frame, op_ret, op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_entrylk (call_frame_t *frame, xlator_t *this,
+		   loc_t *loc, const char *basename,
+		   entrylk_cmd cmd, entrylk_type type)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame, error_gen_entrylk_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->entrylk,
+		    loc, basename, cmd, type);
+	return 0;
+}
+
+int32_t
+error_gen_fentrylk_cbk (call_frame_t *frame, void *cookie,
+			xlator_t *this, int32_t op_ret, int32_t op_errno)
+
+{
+	STACK_UNWIND (frame, op_ret, op_errno);
+	return 0;
+}
+
+int32_t
+error_gen_fentrylk (call_frame_t *frame, xlator_t *this,
+		    fd_t *fd, const char *basename,
+		    entrylk_cmd cmd, entrylk_type type)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno);
+		return 0;
+	}
+
+	STACK_WIND (frame, error_gen_fentrylk_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->fentrylk,
+		    fd, basename, cmd, type);
+	return 0;
+}
+
+
+/* Management operations */
+
+int32_t
+error_gen_stats_cbk (call_frame_t *frame,
+		     void *cookie,
+		     xlator_t *this,
+		     int32_t op_ret,
+		     int32_t op_errno,
+		     struct xlator_stats *stats)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      stats);
+	return 0;
+}
+
+
+int32_t
+error_gen_stats (call_frame_t *frame,
+		 xlator_t *this,
+		 int32_t flags)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_stats_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->mops->stats,
+		    flags);
+	return 0;
+}
+
+
+
+int32_t
+error_gen_getspec_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       char *spec_data)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      spec_data);
+	return 0;
+}
+
+
+int32_t
+error_gen_getspec (call_frame_t *frame,
+		   xlator_t *this,
+		   const char *key,
+		   int32_t flags)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_getspec_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->mops->getspec,
+		    key, flags);
+	return 0;
+}
+
+
+int32_t
+error_gen_checksum_cbk (call_frame_t *frame,
+			void *cookie,
+			xlator_t *this,
+			int32_t op_ret,
+			int32_t op_errno,
+			uint8_t *file_checksum,
+			uint8_t *dir_checksum)
+{
+	STACK_UNWIND (frame,
+		      op_ret,
+		      op_errno,
+		      file_checksum,
+		      dir_checksum);
+	return 0;
+}
+
+
+int32_t
+error_gen_checksum (call_frame_t *frame,
+		    xlator_t *this,
+		    loc_t *loc,
+		    int32_t flag)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_checksum_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->checksum,
+		    loc,
+		    flag);
+	return 0;
+}
+
+int32_t
+error_gen_readdir_cbk (call_frame_t *frame,
+		       void *cookie,
+		       xlator_t *this,
+		       int32_t op_ret,
+		       int32_t op_errno,
+		       gf_dirent_t *entries)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, entries);
+	return 0;
+}
+
+
+int32_t
+error_gen_readdir (call_frame_t *frame,
+		   xlator_t *this,
+		   fd_t *fd,
+		   size_t size,
+		   off_t off)
+{
+	int op_errno = 0;
+	op_errno = error_gen(this);
+	if (op_errno) {
+		GF_ERROR(this, "unwind(-1, %s)", strerror (op_errno));
+		STACK_UNWIND (frame, -1, op_errno, NULL);
+		return 0;
+	}
+
+	STACK_WIND (frame,
+		    error_gen_readdir_cbk,
+		    FIRST_CHILD(this),
+		    FIRST_CHILD(this)->fops->readdir,
+		    fd, size, off);
+	return 0;
+}
+
+int32_t
+error_gen_closedir (xlator_t *this,
+		    fd_t *fd)
+{
+	return 0;
+}
+
+int32_t
+error_gen_close (xlator_t *this,
+		 fd_t *fd)
+{
+	return 0;
+}
+
+int
+init (xlator_t *this)
+{
+	eg_t *pvt = NULL;
+
+	if (!this->children || this->children->next) {
+		gf_log (this->name, GF_LOG_ERROR, 
+			"error-gen not configured with one subvolume");
+		return -1;
+	}
+
+	if (!this->parents) {
+		gf_log (this->name, GF_LOG_WARNING,
+			"dangling volume. check volfile ");
+	}
+  
+	pvt = CALLOC (1, sizeof (eg_t));
+	this->private = pvt;
+	return 0;
+}
+
+void
+fini (xlator_t *this)
+{
+	gf_log (this->name, GF_LOG_DEBUG, "fini called");
+	return;
+}
+
+
+struct xlator_fops fops = {
+	.lookup      = error_gen_lookup,
+	.stat        = error_gen_stat,
+	.readlink    = error_gen_readlink,
+	.mknod       = error_gen_mknod,
+	.mkdir       = error_gen_mkdir,
+	.unlink      = error_gen_unlink,
+	.rmdir       = error_gen_rmdir,
+	.symlink     = error_gen_symlink,
+	.rename      = error_gen_rename,
+	.link        = error_gen_link,
+	.chmod       = error_gen_chmod,
+	.chown       = error_gen_chown,
+	.truncate    = error_gen_truncate,
+	.utimens     = error_gen_utimens,
+	.create      = error_gen_create,
+	.open        = error_gen_open,
+	.readv       = error_gen_readv,
+	.writev      = error_gen_writev,
+	.statfs      = error_gen_statfs,
+	.flush       = error_gen_flush,
+	.fsync       = error_gen_fsync,
+	.setxattr    = error_gen_setxattr,
+	.getxattr    = error_gen_getxattr,
+	.removexattr = error_gen_removexattr,
+	.opendir     = error_gen_opendir,
+	.readdir     = error_gen_readdir,
+	.getdents    = error_gen_getdents,
+	.fsyncdir    = error_gen_fsyncdir,
+	.access      = error_gen_access,
+	.ftruncate   = error_gen_ftruncate,
+	.fstat       = error_gen_fstat,
+	.lk          = error_gen_lk,
+	.fchmod      = error_gen_fchmod,
+	.fchown      = error_gen_fchown,
+	.setdents    = error_gen_setdents,
+	.lookup_cbk  = error_gen_lookup_cbk,
+	.checksum    = error_gen_checksum,
+	.xattrop     = error_gen_xattrop,
+	.fxattrop    = error_gen_fxattrop,
+	.inodelk     = error_gen_inodelk,
+	.finodelk    = error_gen_finodelk,
+	.entrylk     = error_gen_entrylk,
+	.fentrylk    = error_gen_fentrylk
+};
+
+struct xlator_mops mops = {
+	.stats = error_gen_stats,
+	.getspec = error_gen_getspec,
+};
+
+struct xlator_cbks cbks = {
+	.release = error_gen_close,
+	.releasedir = error_gen_closedir,
+};