Remove glusterfs-guts from the repository.

Goodbye, glusterfs-guts/!

Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 734 (keep only the working/usable code in build tree to focus more on development)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=734

1 files changed, 0 insertions, 2725 deletions

diff --git a/glusterfs-guts/src/fuse-bridge.c b/glusterfs-guts/src/fuse-bridge.c
deleted file mode 100644
index 3b7be5f9..00000000
--- a/glusterfs-guts/src/fuse-bridge.c
+++ /dev/null
@@ -1,2725 +0,0 @@
-/*
-   Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.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/>.
-*/
-
-
-#include <stdint.h>
-#include <signal.h>
-#include <pthread.h>
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif /* _CONFIG_H */
-
-#include "glusterfs.h"
-#include "logging.h"
-#include "xlator.h"
-#include "glusterfs.h"
-#include "transport.h"
-#include "defaults.h"
-#include "common-utils.h"
-
-#include <fuse/fuse_lowlevel.h>
-
-#include "fuse-extra.h"
-#include "list.h"
-
-#include "guts-lowlevel.h"
-
-#define BIG_FUSE_CHANNEL_SIZE 1048576
-
-struct fuse_private {
-  int fd;
-  struct fuse *fuse;
-  struct fuse_session *se;
-  struct fuse_chan *ch;
-  char *mountpoint;
-};
-
-char glusterfs_fuse_direct_io_mode = 1;
-float glusterfs_fuse_entry_timeout = 1.0;
-float glusterfs_fuse_attr_timeout = 1.0;
-
-#define FI_TO_FD(fi) ((fd_t *)((long)fi->fh))
-
-#define FUSE_FOP(state, ret, op, args ...)                      \
-do {                                                            \
-  call_frame_t *frame = get_call_frame_for_req (state, 1);      \
-  xlator_t *xl = frame->this->children ?                        \
-                        frame->this->children->xlator : NULL;   \
-  dict_t *refs = frame->root->req_refs;                         \
-  frame->root->state = state;                                   \
-  STACK_WIND (frame, ret, xl, xl->fops->op, args);              \
-  dict_unref (refs);                                            \
-} while (0)
-
-#define FUSE_FOP_NOREPLY(state, op, args ...)                    \
-do {                                                             \
-  call_frame_t *_frame = get_call_frame_for_req (state, 0);      \
-  xlator_t *xl = _frame->this->children->xlator;                 \
-  _frame->root->req_refs = NULL;                                 \
-  STACK_WIND (_frame, fuse_nop_cbk, xl, xl->fops->op, args);     \
-} while (0)
-
-typedef struct {
-  loc_t loc;
-  inode_t *parent;
-  inode_t *inode;
-  char *name;
-} fuse_loc_t;
-
-typedef struct {
-  void *pool;
-  xlator_t *this;
-  inode_table_t *itable;
-  fuse_loc_t fuse_loc;
-  fuse_loc_t fuse_loc2;
-  fuse_req_t req;
-
-  int32_t flags;
-  off_t off;
-  size_t size;
-  unsigned long nlookup;
-  fd_t *fd;
-  dict_t *dict;
-  char *name;
-  char is_revalidate;
-} fuse_state_t;
-
-
-static void
-loc_wipe (loc_t *loc)
-{
-  if (loc->inode) {
-    inode_unref (loc->inode);
-    loc->inode = NULL;
-  }
-  if (loc->path) {
-    FREE (loc->path);
-    loc->path = NULL;
-  }
-}
-
-
-static inode_t *
-dummy_inode (inode_table_t *table)
-{
-  inode_t *dummy;
-
-  dummy = CALLOC (1, sizeof (*dummy));
-  ERR_ABORT (dummy);
-
-  dummy->table = table;
-
-  INIT_LIST_HEAD (&dummy->list);
-  INIT_LIST_HEAD (&dummy->inode_hash);
-  INIT_LIST_HEAD (&dummy->fds);
-  INIT_LIST_HEAD (&dummy->dentry.name_hash);
-  INIT_LIST_HEAD (&dummy->dentry.inode_list);
-
-  dummy->ref = 1;
-  dummy->ctx = get_new_dict ();
-
-  LOCK_INIT (&dummy->lock);
-  return dummy;
-}
-
-static void
-fuse_loc_wipe (fuse_loc_t *fuse_loc)
-{
-  loc_wipe (&fuse_loc->loc);
-  if (fuse_loc->name) {
-    FREE (fuse_loc->name);
-    fuse_loc->name = NULL;
-  }
-  if (fuse_loc->inode) {
-    inode_unref (fuse_loc->inode);
-    fuse_loc->inode = NULL;
-  }
-  if (fuse_loc->parent) {
-    inode_unref (fuse_loc->parent);
-    fuse_loc->parent = NULL;
-  }
-}
-
-
-static void
-free_state (fuse_state_t *state)
-{
-  fuse_loc_wipe (&state->fuse_loc);
-
-  fuse_loc_wipe (&state->fuse_loc2);
-
-  if (state->dict) {
-    dict_unref (state->dict);
-    state->dict = (void *)0xaaaaeeee;
-  }
-  if (state->name) {
-    FREE (state->name);
-    state->name = NULL;
-  }
-#ifdef DEBUG
-  memset (state, 0x90, sizeof (*state));
-#endif
-  FREE (state);
-  state = NULL;
-}
-
-
-static int32_t
-fuse_nop_cbk (call_frame_t *frame,
-	      void *cookie,
-	      xlator_t *this,
-	      int32_t op_ret,
-	      int32_t op_errno)
-{
-  if (frame->root->state)
-    free_state (frame->root->state);
-
-  frame->root->state = EEEEKS;
-  STACK_DESTROY (frame->root);
-  return 0;
-}
-
-fuse_state_t *
-state_from_req (fuse_req_t req)
-{
-  fuse_state_t *state;
-  transport_t *trans = fuse_req_userdata (req);
-
-  state = (void *)calloc (1, sizeof (*state));
-  ERR_ABORT (state);
-  state->pool = trans->xl->ctx->pool;
-  state->itable = trans->xl->itable;
-  state->req = req;
-  state->this = trans->xl;
-
-  return state;
-}
-
-
-static call_frame_t *
-get_call_frame_for_req (fuse_state_t *state, char d)
-{
-  call_pool_t *pool = state->pool;
-  fuse_req_t req = state->req;
-  const struct fuse_ctx *ctx = NULL;
-  call_ctx_t *cctx = NULL;
-  transport_t *trans = NULL;
-
-  cctx = CALLOC (1, sizeof (*cctx));
-  ERR_ABORT (cctx);
-  cctx->frames.root = cctx;
-
-  if (req) {
-    ctx = fuse_req_ctx(req);
-
-    cctx->uid = ctx->uid;
-    cctx->gid = ctx->gid;
-    cctx->pid = ctx->pid;
-    cctx->unique = req_callid (req);
-  }
-
-  if (req) {
-    trans = fuse_req_userdata (req);
-    cctx->frames.this = trans->xl;
-    cctx->trans = trans;
-  } else {
-    cctx->frames.this = state->this;
-  }
-
-  if (d) {
-    cctx->req_refs = dict_ref (get_new_dict ());
-    dict_set (cctx->req_refs, NULL, trans->buf);
-    cctx->req_refs->is_locked = 1;
-  }
-
-  cctx->pool = pool;
-  LOCK (&pool->lock);
-  list_add (&cctx->all_frames, &pool->all_frames);
-  UNLOCK (&pool->lock);
-
-  return &cctx->frames;
-}
-
-
-static void
-fuse_loc_fill (fuse_loc_t *fuse_loc,
-	       fuse_state_t *state,
-	       ino_t ino,
-	       const char *name)
-{
-  size_t n;
-  inode_t *inode, *parent = NULL;
-
-  /* resistance against multiple invocation of loc_fill not to get
-     reference leaks via inode_search() */
-  inode = fuse_loc->inode;
-  if (!inode) {
-    inode = inode_search (state->itable, ino, name);
-  }
-  fuse_loc->inode = inode;
-
-  if (name) {
-    if (!fuse_loc->name)
-      fuse_loc->name = strdup (name);
-
-    parent = fuse_loc->parent;
-    if (!parent) {
-      if (inode)
-	parent = inode_parent (inode, ino);
-      else
-	parent = inode_search (state->itable, ino, NULL);
-    }
-  }
-  fuse_loc->parent = parent;
-
-  if (inode) {
-    fuse_loc->loc.inode = inode_ref (inode);
-    fuse_loc->loc.ino = inode->ino;
-  }
-
-  if (parent) {
-    n = inode_path (parent, name, NULL, 0) + 1;
-    fuse_loc->loc.path = CALLOC (1, n);
-    ERR_ABORT (fuse_loc->loc.path);
-    inode_path (parent, name, (char *)fuse_loc->loc.path, n);
-  } else if (inode) {
-    n = inode_path (inode, NULL, NULL, 0) + 1;
-    fuse_loc->loc.path = CALLOC (1, n);
-    ERR_ABORT (fuse_loc->loc.path);
-    inode_path (inode, NULL, (char *)fuse_loc->loc.path, n);
-  }
-}
-
-static int32_t
-fuse_lookup_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno,
-		 inode_t *inode,
-		 struct stat *stat,
-                 dict_t *dict,
-                 struct stat *postparent);
-
-static int32_t
-fuse_entry_cbk (call_frame_t *frame,
-		void *cookie,
-		xlator_t *this,
-		int32_t op_ret,
-		int32_t op_errno,
-		inode_t *inode,
-		struct stat *buf)
-{
-  fuse_state_t *state;
-  fuse_req_t req;
-  struct fuse_entry_param e = {0, };
-
-  state = frame->root->state;
-  req = state->req;
-
-  if (!op_ret) {
-    if (inode->ino == 1)
-      buf->st_ino = 1;
-  }
-
-  if (!op_ret && inode && inode->ino && buf && inode->ino != buf->st_ino) {
-    /* temporary workaround to handle AFR returning differnt inode number */
-    gf_log ("glusterfs-fuse", GF_LOG_WARNING,
-	    "%"PRId64": %s => inode number changed %"PRId64" -> %"PRId64,
-	    frame->root->unique, state->fuse_loc.loc.path,
-	    inode->ino, buf->st_ino);
-    inode_unref (state->fuse_loc.loc.inode);
-    state->fuse_loc.loc.inode = dummy_inode (state->itable);
-    state->is_revalidate = 2;
-
-    STACK_WIND (frame, fuse_lookup_cbk,
-		FIRST_CHILD (this), FIRST_CHILD (this)->fops->lookup,
-		&state->fuse_loc.loc, 
-		0);
-
-    return 0;
-  }
-
-  if (op_ret == 0) {
-    ino_t ino = buf->st_ino;
-    inode_t *fuse_inode;
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %"PRId64, frame->root->unique,
-	    state->fuse_loc.loc.path, ino);
-
-  try_again:
-    fuse_inode = inode_update (state->itable, state->fuse_loc.parent,
-			       state->fuse_loc.name, buf);
-
-    if (fuse_inode->ctx) {
-      /* if the inode was already in the hash, checks to flush out
-	 old name hashes */
-      if ((fuse_inode->st_mode ^ buf->st_mode) & S_IFMT) {
-	gf_log ("glusterfs-fuse", GF_LOG_WARNING,
-		"%"PRId64": %s => %"PRId64" Rehashing %x/%x",
-		frame->root->unique,
-		state->fuse_loc.loc.path, ino, (S_IFMT & buf->st_ino),
-		(S_IFMT & fuse_inode->st_mode));
-
-	fuse_inode->st_mode = buf->st_mode;
-	inode_unhash_name (state->itable, fuse_inode);
-	inode_unref (fuse_inode);
-	goto try_again;
-      }
-      if (buf->st_nlink == 1) {
-	/* no other name hashes should exist */
-	if (!list_empty (&fuse_inode->dentry.inode_list)) {
-	  gf_log ("glusterfs-fuse", GF_LOG_WARNING,
-		  "%"PRId64": %s => %"PRId64" Rehashing because st_nlink less than dentry maps",
-		  frame->root->unique,
-		  state->fuse_loc.loc.path, ino);
-	  inode_unhash_name (state->itable, fuse_inode);
-	  inode_unref (fuse_inode);
-	  goto try_again;
-	}
-	if ((state->fuse_loc.parent != fuse_inode->dentry.parent) ||
-	    strcmp (state->fuse_loc.name, fuse_inode->dentry.name)) {
-	  gf_log ("glusterfs-fuse", GF_LOG_WARNING,
-		  "%"PRId64": %s => %"PRId64" Rehashing because single st_nlink does not match dentry map",
-		  frame->root->unique,
-		  state->fuse_loc.loc.path, ino);
-	  inode_unhash_name (state->itable, fuse_inode);
-	  inode_unref (fuse_inode);
-	  goto try_again;
-	}
-      }
-    }
-
-    if ((fuse_inode->ctx != inode->ctx) &&
-	list_empty (&fuse_inode->fds)) {
-      dict_t *swap = inode->ctx;
-      inode->ctx = fuse_inode->ctx;
-      fuse_inode->ctx = swap;
-      fuse_inode->generation = inode->generation;
-      fuse_inode->st_mode = buf->st_mode;
-    }
-
-    inode_lookup (fuse_inode);
-
-    inode_unref (fuse_inode);
-
-    /* TODO: make these timeouts configurable (via meta?) */
-    e.ino = fuse_inode->ino;
-    e.generation = buf->st_ctime;
-    e.entry_timeout = glusterfs_fuse_entry_timeout;
-    e.attr_timeout = glusterfs_fuse_attr_timeout;
-    e.attr = *buf;
-    e.attr.st_blksize = BIG_FUSE_CHANNEL_SIZE;
-    if (state->fuse_loc.parent)
-      fuse_reply_entry (req, &e);
-    else
-      fuse_reply_attr (req, buf, glusterfs_fuse_attr_timeout);
-  } else {
-    if (state->is_revalidate == -1 && op_errno == ENOENT) {
-      gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	      "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	      state->fuse_loc.loc.path, op_errno);
-    } else {
-      gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	      "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	      state->fuse_loc.loc.path, op_errno);
-    }
-
-    if (state->is_revalidate == 1) {
-      gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	      "unlinking stale dentry for `%s'",
-	      state->fuse_loc.loc.path);
-
-      if (state->fuse_loc.parent)
-	inode_unlink (state->itable, state->fuse_loc.parent,
-		      state->fuse_loc.name); 
-
-      inode_unref (state->fuse_loc.loc.inode);
-      state->fuse_loc.loc.inode = dummy_inode (state->itable);
-      state->is_revalidate = 2;
-
-      STACK_WIND (frame, fuse_lookup_cbk,
-		  FIRST_CHILD (this), FIRST_CHILD (this)->fops->lookup,
-		  &state->fuse_loc.loc, 0);
-
-      return 0;
-    }
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-  return 0;
-}
-
-
-static int32_t
-fuse_lookup_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno,
-		 inode_t *inode,
-		 struct stat *stat,
-		 dict_t *dict)
-{
-  fuse_entry_cbk (frame, cookie, this, op_ret, op_errno, inode, stat);
-  return 0;
-}
-
-
-static void
-fuse_lookup (fuse_req_t req,
-	     fuse_ino_t par,
-	     const char *name)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": LOOKUP %s", req_callid (req),
-	    state->fuse_loc.loc.path);
-
-    state->fuse_loc.loc.inode = dummy_inode (state->itable);
-    /* to differntiate in entry_cbk what kind of call it is */
-    state->is_revalidate = -1;
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": LOOKUP %s(%"PRId64")", req_callid (req),
-	    state->fuse_loc.loc.path, state->fuse_loc.loc.inode->ino);
-    state->is_revalidate = 1;
-  }
-
-  FUSE_FOP (state, fuse_lookup_cbk, lookup,
-	    &state->fuse_loc.loc, 0);
-}
-
-
-static void
-fuse_forget (fuse_req_t req,
-	     fuse_ino_t ino,
-	     unsigned long nlookup)
-{
-  inode_t *fuse_inode;
-  fuse_state_t *state;
-
-  if (ino == 1) {
-    fuse_reply_none (req);
-    return;
-  }
-
-  state = state_from_req (req);
-  fuse_inode = inode_search (state->itable, ino, NULL);
-  inode_forget (fuse_inode, nlookup);
-  inode_unref (fuse_inode);
-
-  free_state (state);
-  fuse_reply_none (req);
-}
-
-
-static int32_t
-fuse_attr_cbk (call_frame_t *frame,
-	       void *cookie,
-	       xlator_t *this,
-	       int32_t op_ret,
-	       int32_t op_errno,
-	       struct stat *buf)
-{
-  fuse_state_t *state;
-  fuse_req_t req;
-
-  state = frame->root->state;
-  req = state->req;
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %"PRId64, frame->root->unique,
-	    state->fuse_loc.loc.path ? state->fuse_loc.loc.path : "ERR",
-	    buf->st_ino);
-    /* TODO: make these timeouts configurable via meta */
-    /* TODO: what if the inode number has changed by now */ 
-    buf->st_blksize = BIG_FUSE_CHANNEL_SIZE;
-    fuse_reply_attr (req, buf, glusterfs_fuse_attr_timeout);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64"; %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path ? state->fuse_loc.loc.path : "ERR",
-	    op_errno);
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-  return 0;
-}
-
-
-static void
-fuse_getattr (fuse_req_t req,
-	      fuse_ino_t ino,
-	      struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  if (ino == 1) {
-    fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-    if (state->fuse_loc.loc.inode)
-      state->is_revalidate = 1;
-    else
-      state->is_revalidate = -1;
-    FUSE_FOP (state,
-	      fuse_lookup_cbk, lookup, &state->fuse_loc.loc, 0);
-    return;
-  }
-
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": GETATTR %"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), (int64_t)ino, state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  if (list_empty (&state->fuse_loc.loc.inode->fds) || 
-      S_ISDIR (state->fuse_loc.loc.inode->st_mode)) {
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": GETATTR %"PRId64" (%s)",
-	    req_callid (req), (int64_t)ino, state->fuse_loc.loc.path);
-    
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      stat,
-	      &state->fuse_loc.loc);
-  } else {
-    fd_t *fd  = list_entry (state->fuse_loc.loc.inode->fds.next,
-			    fd_t, inode_list);
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": FGETATTR %"PRId64" (%s/%p)",
-	    req_callid (req), (int64_t)ino, state->fuse_loc.loc.path, fd);
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      fstat, fd);
-  }
-}
-
-
-static int32_t
-fuse_fd_cbk (call_frame_t *frame,
-	     void *cookie,
-	     xlator_t *this,
-	     int32_t op_ret,
-	     int32_t op_errno,
-	     fd_t *fd)
-{
-  fuse_state_t *state;
-  fuse_req_t req;
-
-  state = frame->root->state;
-  req = state->req;
-  fd = state->fd;
-
-  if (op_ret >= 0) {
-    struct fuse_file_info fi = {0, };
-
-    LOCK (&fd->inode->lock);
-    list_add (&fd->inode_list, &fd->inode->fds);
-    UNLOCK (&fd->inode->lock);
-
-    fi.fh = (unsigned long) fd;
-    fi.flags = state->flags;
-
-    if (!S_ISDIR (fd->inode->st_mode)) {
-      if ((fi.flags & 3) && glusterfs_fuse_direct_io_mode)
-	  fi.direct_io = 1;
-    }
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %p", frame->root->unique,
-	    state->fuse_loc.loc.path, fd);
-
-    if (fuse_reply_open (req, &fi) == -ENOENT) {
-      gf_log ("glusterfs-fuse", GF_LOG_WARNING, "open() got EINTR");
-      state->req = 0;
-
-      if (S_ISDIR (fd->inode->st_mode))
-	FUSE_FOP_NOREPLY (state, closedir, fd);
-      else
-	FUSE_FOP_NOREPLY (state, close, fd);
-    }
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path, op_errno);
-    fuse_reply_err (req, op_errno);
-    fd_destroy (fd);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-  return 0;
-}
-
-
-
-static void
-do_chmod (fuse_req_t req,
-	  fuse_ino_t ino,
-	  struct stat *attr,
-	  struct fuse_file_info *fi)
-{
-  fuse_state_t *state = state_from_req (req);
-
-  if (fi) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": FCHMOD %p", req_callid (req), FI_TO_FD (fi));
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      fchmod,
-	      FI_TO_FD (fi),
-	      attr->st_mode);
-  } else {
-    fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-    if (!state->fuse_loc.loc.inode) {
-      gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	      "%"PRId64": CHMOD %"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	      req_callid (req), (int64_t)ino, state->fuse_loc.loc.path);
-      fuse_reply_err (req, EINVAL);
-      return;
-    }
-
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": CHMOD %s", req_callid (req),
-	    state->fuse_loc.loc.path);
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      chmod,
-	      &state->fuse_loc.loc,
-	      attr->st_mode);
-  }
-}
-
-static void
-do_chown (fuse_req_t req,
-	  fuse_ino_t ino,
-	  struct stat *attr,
-	  int valid,
-	  struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  uid_t uid = (valid & FUSE_SET_ATTR_UID) ? attr->st_uid : (uid_t) -1;
-  gid_t gid = (valid & FUSE_SET_ATTR_GID) ? attr->st_gid : (gid_t) -1;
-
-  state = state_from_req (req);
-
-  if (fi) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": FCHOWN %p", req_callid (req), FI_TO_FD (fi));
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      fchown,
-	      FI_TO_FD (fi),
-	      uid,
-	      gid);
-  } else {
-    fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-    if (!state->fuse_loc.loc.inode) {
-      gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	      "%"PRId64": CHOWN %"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	      req_callid (req), (int64_t)ino, state->fuse_loc.loc.path);
-      fuse_reply_err (req, EINVAL);
-      return;
-    }
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": CHOWN %s", req_callid (req),
-	    state->fuse_loc.loc.path);
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      chown,
-	      &state->fuse_loc.loc,
-	      uid,
-	      gid);
-  }
-}
-
-static void 
-do_truncate (fuse_req_t req,
-	     fuse_ino_t ino,
-	     struct stat *attr,
-	     struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  if (fi) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": FTRUNCATE %p/%"PRId64, req_callid (req),
-	    FI_TO_FD (fi), attr->st_size);
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      ftruncate,
-	      FI_TO_FD (fi),
-	      attr->st_size);
-  } else {
-    fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-    if (!state->fuse_loc.loc.inode) {
-      gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	      "%"PRId64": TRUNCATE %s/%"PRId64" (fuse_loc_fill() returned NULL inode)", 
-	      req_callid (req), state->fuse_loc.loc.path, attr->st_size);
-      fuse_reply_err (req, EINVAL);
-      return;
-    }
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": TRUNCATE %s/%"PRId64, req_callid (req),
-	    state->fuse_loc.loc.path, attr->st_size);
-
-    FUSE_FOP (state,
-	      fuse_attr_cbk,
-	      truncate,
-	      &state->fuse_loc.loc,
-	      attr->st_size);
-  }
-
-  return;
-}
-
-static void 
-do_utimes (fuse_req_t req,
-	   fuse_ino_t ino,
-	   struct stat *attr)
-{
-  fuse_state_t *state;
-
-  struct timespec tv[2];
-#ifdef FUSE_STAT_HAS_NANOSEC
-  tv[0] = ST_ATIM(attr);
-  tv[1] = ST_MTIM(attr);
-#else
-  tv[0].tv_sec = attr->st_atime;
-  tv[0].tv_nsec = 0;
-  tv[1].tv_sec = attr->st_mtime;
-  tv[1].tv_nsec = 0;
-#endif
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": UTIMENS %s (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": UTIMENS %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_attr_cbk,
-	    utimens,
-	    &state->fuse_loc.loc,
-	    tv);
-}
-
-static void
-fuse_setattr (fuse_req_t req,
-	      fuse_ino_t ino,
-	      struct stat *attr,
-	      int valid,
-	      struct fuse_file_info *fi)
-{
-
-  if (valid & FUSE_SET_ATTR_MODE)
-    do_chmod (req, ino, attr, fi);
-  else if (valid & (FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID))
-    do_chown (req, ino, attr, valid, fi);
-  else if (valid & FUSE_SET_ATTR_SIZE)
-    do_truncate (req, ino, attr, fi);
-  else if ((valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) == (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME))
-    do_utimes (req, ino, attr);
-
-  if (!valid)
-    fuse_getattr (req, ino, fi);
-}
-
-
-static int32_t
-fuse_err_cbk (call_frame_t *frame,
-	      void *cookie,
-	      xlator_t *this,
-	      int32_t op_ret,
-	      int32_t op_errno)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => 0", frame->root->unique,
-	    state->fuse_loc.loc.path ? state->fuse_loc.loc.path : "ERR");
-    fuse_reply_err (req, 0);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path ? state->fuse_loc.loc.path : "ERR",
-	    op_errno);
-    fuse_reply_err (req, op_errno);
-  }
-
-  if (state->fd)
-    fd_destroy (state->fd);
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-
-static int32_t
-fuse_unlink_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret == 0)
-    inode_unlink (state->itable, state->fuse_loc.parent, state->fuse_loc.name);
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => 0", frame->root->unique,
-	    state->fuse_loc.loc.path);
-
-    fuse_reply_err (req, 0);
-  } else {
-    gf_log ("glusterfs-fuse", (op_errno == ENOTEMPTY) ? GF_LOG_DEBUG : GF_LOG_ERROR,
-	    "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path, op_errno);
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-static void
-fuse_access (fuse_req_t req,
-	     fuse_ino_t ino,
-	     int mask)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": ACCESS %"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), (int64_t)ino, state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    access,
-	    &state->fuse_loc.loc,
-	    mask);
-
-  return;
-}
-
-
-
-static int32_t
-fuse_readlink_cbk (call_frame_t *frame,
-		   void *cookie,
-		   xlator_t *this,
-		   int32_t op_ret,
-		   int32_t op_errno,
-		   const char *linkname)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret > 0) {
-    ((char *)linkname)[op_ret] = '\0';
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %s", frame->root->unique,
-	    state->fuse_loc.loc.path, linkname);
-
-      fuse_reply_readlink(req, linkname);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path, op_errno);
-    fuse_reply_err(req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-static void
-fuse_readlink (fuse_req_t req,
-	       fuse_ino_t ino)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64" READLINK %s/%"PRId64" (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), state->fuse_loc.loc.path, state->fuse_loc.loc.inode->ino);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-  
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64" READLINK %s/%"PRId64, req_callid (req),
-	  state->fuse_loc.loc.path, state->fuse_loc.loc.inode->ino);
-
-  FUSE_FOP (state,
-	    fuse_readlink_cbk,
-	    readlink,
-	    &state->fuse_loc.loc,
-	    4096);
-
-  return;
-}
-
-
-static void
-fuse_mknod (fuse_req_t req,
-	    fuse_ino_t par,
-	    const char *name,
-	    mode_t mode,
-	    dev_t rdev)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-
-  state->fuse_loc.loc.inode = dummy_inode (state->itable);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": MKNOD %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_entry_cbk,
-	    mknod,
-	    &state->fuse_loc.loc,
-	    mode,
-	    rdev);
-
-  return;
-}
-
-
-static void 
-fuse_mkdir (fuse_req_t req,
-	    fuse_ino_t par,
-	    const char *name,
-	    mode_t mode)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-
-  state->fuse_loc.loc.inode = dummy_inode (state->itable);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": MKDIR %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_entry_cbk,
-	    mkdir,
-	    &state->fuse_loc.loc,
-	    mode);
-
-  return;
-}
-
-
-static void 
-fuse_unlink (fuse_req_t req,
-	     fuse_ino_t par,
-	     const char *name)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": UNLINK %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": UNLINK %s (fuse_loc_fill() returned NULL inode)", req_callid (req),
-	    state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  FUSE_FOP (state,
-	    fuse_unlink_cbk,
-	    unlink,
-	    &state->fuse_loc.loc);
-
-  return;
-}
-
-
-static void 
-fuse_rmdir (fuse_req_t req,
-	    fuse_ino_t par,
-	    const char *name)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": RMDIR %s (fuse_loc_fill() returned NULL inode)", req_callid (req),
-	    state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": RMDIR %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_unlink_cbk,
-	    rmdir,
-	    &state->fuse_loc.loc);
-
-  return;
-}
-
-
-static void
-fuse_symlink (fuse_req_t req,
-	      const char *linkname,
-	      fuse_ino_t par,
-	      const char *name)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-
-  state->fuse_loc.loc.inode = dummy_inode (state->itable);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": SYMLINK %s -> %s", req_callid (req),
-	  state->fuse_loc.loc.path, linkname);
-
-  FUSE_FOP (state,
-	    fuse_entry_cbk,
-	    symlink,
-	    linkname,
-	    &state->fuse_loc.loc);
-  return;
-}
-
-
-int32_t
-fuse_rename_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno,
-		 struct stat *buf)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s -> %s => 0", frame->root->unique,
-	    state->fuse_loc.loc.path,
-	    state->fuse_loc2.loc.path);
-
-    inode_t *inode;
-    {
-      /* ugly ugly - to stay blind to situation where
-	 rename happens on a new inode
-      */
-      buf->st_ino = state->fuse_loc.loc.ino;
-    }
-    inode = inode_rename (state->itable,
-			  state->fuse_loc.parent,
-			  state->fuse_loc.name,
-			  state->fuse_loc2.parent,
-			  state->fuse_loc2.name,
-			  buf);
-
-    inode_unref (inode);
-    fuse_reply_err (req, 0);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": %s -> %s => -1 (%d)", frame->root->unique,
-	    state->fuse_loc.loc.path,
-	    state->fuse_loc2.loc.path, op_errno);
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-  return 0;
-}
-
-
-static void
-fuse_rename (fuse_req_t req,
-	     fuse_ino_t oldpar,
-	     const char *oldname,
-	     fuse_ino_t newpar,
-	     const char *newname)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  fuse_loc_fill (&state->fuse_loc, state, oldpar, oldname);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "for %s %"PRId64": RENAME `%s' -> `%s' (fuse_loc_fill() returned NULL inode)",
-	    state->fuse_loc.loc.path, req_callid (req), state->fuse_loc.loc.path,
-	    state->fuse_loc2.loc.path);
-    
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  fuse_loc_fill (&state->fuse_loc2, state, newpar, newname);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": RENAME `%s' -> `%s'",
-	  req_callid (req), state->fuse_loc.loc.path,
-	  state->fuse_loc2.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_rename_cbk,
-	    rename,
-	    &state->fuse_loc.loc,
-	    &state->fuse_loc2.loc);
-
-  return;
-}
-
-
-static void
-fuse_link (fuse_req_t req,
-	   fuse_ino_t ino,
-	   fuse_ino_t par,
-	   const char *name)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-  fuse_loc_fill (&state->fuse_loc2, state, ino, NULL);
-  if (!state->fuse_loc2.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "fuse_loc_fill() returned NULL inode for %s %"PRId64": LINK %s %s", 
-	    state->fuse_loc2.loc.path, req_callid (req), 
-	    state->fuse_loc2.loc.path, state->fuse_loc.loc.path);
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  state->fuse_loc.loc.inode = inode_ref (state->fuse_loc2.loc.inode);
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": LINK %s %s", req_callid (req),
-	  state->fuse_loc2.loc.path, state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_entry_cbk,
-	    link,
-	    &state->fuse_loc2.loc,
-	    state->fuse_loc.loc.path);
-
-  return;
-}
-
-
-static int32_t
-fuse_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)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  struct fuse_file_info fi = {0, };
-  struct fuse_entry_param e = {0, };
-
-  fd = state->fd;
-
-  fi.flags = state->flags;
-  if (op_ret >= 0) {
-    inode_t *fuse_inode;
-    fi.fh = (unsigned long) fd;
-
-    if ((fi.flags & 3) && glusterfs_fuse_direct_io_mode)
-      fi.direct_io = 1;
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %p", frame->root->unique,
-	    state->fuse_loc.loc.path, fd);
-
-    fuse_inode = inode_update (state->itable,
-			       state->fuse_loc.parent,
-			       state->fuse_loc.name,
-			       buf);
-    if (fuse_inode->ctx) {
-      inode_unhash_name (state->itable, fuse_inode);
-      inode_unref (fuse_inode);
-
-      fuse_inode = inode_update (state->itable,
-                                 state->fuse_loc.parent,
-                                 state->fuse_loc.name,
-                                 buf);
-    }
-
-
-    {
-      if (fuse_inode->ctx != inode->ctx) {
-	dict_t *swap = inode->ctx;
-	inode->ctx = fuse_inode->ctx;
-	fuse_inode->ctx = swap;
-	fuse_inode->generation = inode->generation;
-	fuse_inode->st_mode = buf->st_mode;
-      }
-
-      inode_lookup (fuse_inode);
-
-      /*      list_del (&fd->inode_list); */
-
-      LOCK (&fuse_inode->lock);
-      list_add (&fd->inode_list, &fuse_inode->fds);
-      inode_unref (fd->inode);
-      fd->inode = inode_ref (fuse_inode);
-      UNLOCK (&fuse_inode->lock);
-
-      //      inode_destroy (inode);
-    }
-
-    inode_unref (fuse_inode);
-
-    e.ino = fuse_inode->ino;
-    e.generation = buf->st_ctime;
-    e.entry_timeout = glusterfs_fuse_entry_timeout;
-    e.attr_timeout = glusterfs_fuse_attr_timeout;
-    e.attr = *buf;
-    e.attr.st_blksize = BIG_FUSE_CHANNEL_SIZE;
-
-    fi.keep_cache = 0;
-
-    //    if (fi.flags & 1)
-    //      fi.direct_io = 1;
-
-    if (fuse_reply_create (req, &e, &fi) == -ENOENT) {
-      gf_log ("glusterfs-fuse", GF_LOG_WARNING, "create() got EINTR");
-      /* TODO: forget this node too */
-      state->req = 0;
-      FUSE_FOP_NOREPLY (state, close, fd);
-    }
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": %s => -1 (%d)", req_callid (req),
-	    state->fuse_loc.loc.path, op_errno);
-    fuse_reply_err (req, op_errno);
-    fd_destroy (fd);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-static void
-fuse_create (fuse_req_t req,
-	     fuse_ino_t par,
-	     const char *name,
-	     mode_t mode,
-	     struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-  fd_t *fd;
-
-  state = state_from_req (req);
-  state->flags = fi->flags;
-
-  fuse_loc_fill (&state->fuse_loc, state, par, name);
-  state->fuse_loc.loc.inode = dummy_inode (state->itable);
-
-  fd = fd_create (state->fuse_loc.loc.inode);
-  state->fd = fd;
-
-
-  LOCK (&fd->inode->lock);
-  list_del_init (&fd->inode_list);
-  UNLOCK (&fd->inode->lock);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": CREATE %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_create_cbk,
-	    create,
-	    &state->fuse_loc.loc,
-	    state->flags,
-	    mode, fd);
-
-  return;
-}
-
-
-static void
-fuse_open (fuse_req_t req,
-	   fuse_ino_t ino,
-	   struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-  fd_t *fd;
-
-  state = state_from_req (req);
-  state->flags = fi->flags;
-
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": OPEN %s (fuse_loc_fill() returned NULL inode)", req_callid (req),
-	    state->fuse_loc.loc.path);
-  
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-
-  fd = fd_create (state->fuse_loc.loc.inode);
-  state->fd = fd;
-
-  LOCK (&fd->inode->lock);
-  list_del_init (&fd->inode_list);
-  UNLOCK (&fd->inode->lock);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": OPEN %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_fd_cbk,
-	    open,
-	    &state->fuse_loc.loc,
-	    fi->flags, fd);
-
-  return;
-}
-
-
-static int32_t
-fuse_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)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret >= 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": READ => %d/%d,%"PRId64"/%"PRId64, frame->root->unique,
-	    op_ret, state->size, state->off, stbuf->st_size);
-
-    fuse_reply_vec (req, vector, count);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": READ => -1 (%d)", frame->root->unique, op_errno);
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-static void
-fuse_readv (fuse_req_t req,
-	    fuse_ino_t ino,
-	    size_t size,
-	    off_t off,
-	    struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->size = size;
-  state->off = off;
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": READ (%p, size=%d, offset=%"PRId64")",
-	  req_callid (req), FI_TO_FD (fi), size, off);
-
-  FUSE_FOP (state,
-	    fuse_readv_cbk,
-	    readv,
-	    FI_TO_FD (fi),
-	    size,
-	    off);
-
-}
-
-
-static int32_t
-fuse_writev_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno,
-		 struct stat *stbuf)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret >= 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": WRITE => %d/%d,%"PRId64"/%"PRId64, frame->root->unique,
-	    op_ret, state->size, state->off, stbuf->st_size);
-
-    fuse_reply_write (req, op_ret);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": WRITE => -1 (%d)", frame->root->unique, op_errno);
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-static void
-fuse_write (fuse_req_t req,
-	    fuse_ino_t ino,
-	    const char *buf,
-	    size_t size,
-	    off_t off,
-	    struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-  struct iovec vector;
-
-  state = state_from_req (req);
-  state->size = size;
-  state->off = off;
-
-  vector.iov_base = (void *)buf;
-  vector.iov_len = size;
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": WRITE (%p, size=%d, offset=%"PRId64")",
-	  req_callid (req), FI_TO_FD (fi), size, off);
-
-  FUSE_FOP (state,
-	    fuse_writev_cbk,
-	    writev,
-	    FI_TO_FD (fi),
-	    &vector,
-	    1,
-	    off);
-  return;
-}
-
-
-static void
-fuse_flush (fuse_req_t req,
-	    fuse_ino_t ino,
-	    struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": FLUSH %p", req_callid (req), FI_TO_FD (fi));
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    flush,
-	    FI_TO_FD (fi));
-
-  return;
-}
-
-
-static void 
-fuse_release (fuse_req_t req,
-	      fuse_ino_t ino,
-	      struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->fd = FI_TO_FD (fi);
-
-  LOCK (&state->fd->inode->lock);
-  list_del_init (&state->fd->inode_list);
-  UNLOCK (&state->fd->inode->lock);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": CLOSE %p", req_callid (req), FI_TO_FD (fi));
-
-  FUSE_FOP (state, fuse_err_cbk, close, state->fd);
-  return;
-}
-
-
-static void 
-fuse_fsync (fuse_req_t req,
-	    fuse_ino_t ino,
-	    int datasync,
-	    struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": FSYNC %p", req_callid (req), FI_TO_FD (fi));
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    fsync,
-	    FI_TO_FD (fi),
-	    datasync);
-
-  return;
-}
-
-static void
-fuse_opendir (fuse_req_t req,
-	      fuse_ino_t ino,
-	      struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-  fd_t *fd;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": OPEN %s (fuse_loc_fill() returned NULL inode)", req_callid (req),
-	    state->fuse_loc.loc.path);
-  
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-
-  fd = fd_create (state->fuse_loc.loc.inode);
-  state->fd = fd;
-
-  LOCK (&fd->inode->lock);
-  list_del_init (&fd->inode_list);
-  UNLOCK (&fd->inode->lock);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": OPEN %s", req_callid (req),
-	  state->fuse_loc.loc.path);
-
-  FUSE_FOP (state,
-	    fuse_fd_cbk,
-	    opendir,
-	    &state->fuse_loc.loc, fd);
-}
-
-#if 0
-
-void
-fuse_dir_reply (fuse_req_t req,
-		size_t size,
-		off_t off,
-		fd_t *fd)
-{
-  char *buf;
-  size_t size_limited;
-  data_t *buf_data;
-
-  buf_data = dict_get (fd->ctx, "__fuse__getdents__internal__@@!!");
-  buf = buf_data->data;
-  size_limited = size;
-
-  if (size_limited > (buf_data->len - off))
-    size_limited = (buf_data->len - off);
-
-  if (off > buf_data->len) {
-    size_limited = 0;
-    off = 0;
-  }
-
-  fuse_reply_buf (req, buf + off, size_limited);
-}
-
-
-static int32_t
-fuse_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)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret < 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": READDIR => -1 (%d)",
-	    frame->root->unique, op_errno);
-
-    fuse_reply_err (state->req, op_errno);
-  } else {
-    dir_entry_t *trav;
-    size_t size = 0;
-    char *buf;
-    data_t *buf_data;
-
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": READDIR => %d entries",
-	    frame->root->unique, count);
-
-    for (trav = entries->next; trav; trav = trav->next) {
-      size += fuse_add_direntry (req, NULL, 0, trav->name, NULL, 0);
-    }
-
-    buf = CALLOC (1, size);
-    ERR_ABORT (buf);
-    buf_data = data_from_dynptr (buf, size);
-    size = 0;
-
-    for (trav = entries->next; trav; trav = trav->next) {
-      size_t entry_size;
-      entry_size = fuse_add_direntry (req, NULL, 0, trav->name, NULL, 0);
-      fuse_add_direntry (req, buf + size, entry_size, trav->name,
-			 &trav->buf, entry_size + size);
-      size += entry_size;
-    }
-
-    dict_set (state->fd->ctx,
-	      "__fuse__getdents__internal__@@!!",
-	      buf_data);
-
-    fuse_dir_reply (state->req, state->size, state->off, state->fd);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-static void
-fuse_getdents (fuse_req_t req,
-	       fuse_ino_t ino,
-	       struct fuse_file_info *fi,
-	       size_t size,
-	       off_t off,
-	       int32_t flag)
-{
-  fuse_state_t *state;
-  fd_t *fd = FI_TO_FD (fi);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": GETDENTS %p", req_callid (req), FI_TO_FD (fi));
-
-  if (!off)
-    dict_del (fd->ctx, "__fuse__getdents__internal__@@!!");
-
-  if (dict_get (fd->ctx, "__fuse__getdents__internal__@@!!")) {
-    fuse_dir_reply (req, size, off, fd);
-    return;
-  }
-
-  state = state_from_req (req);
-
-  state->size = size;
-  state->off = off;
-  state->fd = fd;
-
-  FUSE_FOP (state,
-	    fuse_getdents_cbk,
-	    getdents,
-	    fd,
-	    size,
-	    off,
-	    0);
-}
-
-#endif
-
-static int32_t
-fuse_readdir_cbk (call_frame_t *frame,
-		  void *cookie,
-		  xlator_t *this,
-		  int32_t op_ret,
-		  int32_t op_errno,
-		  gf_dirent_t *buf)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (op_ret >= 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": READDIR => %d/%d,%"PRId64, frame->root->unique,
-	    op_ret, state->size, state->off);
-
-    fuse_reply_buf (req, (void *)buf, op_ret);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": READDIR => -1 (%d)", frame->root->unique, op_errno);
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-
-}
-
-static void
-fuse_readdir (fuse_req_t req,
-	      fuse_ino_t ino,
-	      size_t size,
-	      off_t off,
-	      struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->size = size;
-  state->off = off;
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": READDIR (%p, size=%d, offset=%"PRId64")",
-	  req_callid (req), FI_TO_FD (fi), size, off);
-
-  FUSE_FOP (state,
-	    fuse_readdir_cbk,
-	    readdir,
-	    FI_TO_FD (fi),
-	    size,
-	    off);
-}
-
-
-static void
-fuse_releasedir (fuse_req_t req,
-		 fuse_ino_t ino,
-		 struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->fd = FI_TO_FD (fi);
-
-  LOCK (&state->fd->inode->lock);
-  list_del_init (&state->fd->inode_list);
-  UNLOCK (&state->fd->inode->lock);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": CLOSEDIR %p", req_callid (req), FI_TO_FD (fi));
-
-  FUSE_FOP (state, fuse_err_cbk, closedir, state->fd);
-}
-
-
-static void 
-fuse_fsyncdir (fuse_req_t req,
-	       fuse_ino_t ino,
-	       int datasync,
-	       struct fuse_file_info *fi)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    fsyncdir,
-	    FI_TO_FD (fi),
-	    datasync);
-
-  return;
-}
-
-
-static int32_t
-fuse_statfs_cbk (call_frame_t *frame,
-		 void *cookie,
-		 xlator_t *this,
-		 int32_t op_ret,
-		 int32_t op_errno,
-		 struct statvfs *buf)
-{
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  /*
-    Filesystems (like ZFS on solaris) reports
-    different ->f_frsize and ->f_bsize. Old coreutils
-    df tools use statfs() and do not see ->f_frsize.
-    the ->f_blocks, ->f_bavail and ->f_bfree are
-    w.r.t ->f_frsize and not ->f_bsize which makes the
-    df tools report wrong values.
-
-    Scale the block counts to match ->f_bsize.
-  */
-  /* TODO: with old coreutils, f_bsize is taken from stat()'s st_blksize
-   * so the df with old coreutils this wont work :(
-   */
-
-  if (op_ret == 0) {
-
-    buf->f_blocks *= buf->f_frsize;
-    buf->f_blocks /= BIG_FUSE_CHANNEL_SIZE;
-
-    buf->f_bavail *= buf->f_frsize;
-    buf->f_bavail /= BIG_FUSE_CHANNEL_SIZE;
-
-    buf->f_bfree *= buf->f_frsize;
-    buf->f_bfree /= BIG_FUSE_CHANNEL_SIZE;
-
-    buf->f_frsize = buf->f_bsize = BIG_FUSE_CHANNEL_SIZE;
-
-    fuse_reply_statfs (req, buf);
-
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": ERR => -1 (%d)", frame->root->unique, op_errno);
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-static void
-fuse_statfs (fuse_req_t req,
-	     fuse_ino_t ino)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, 1, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": STATFS (fuse_loc_fill() returned NULL inode)", req_callid (req));
-    
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": STATFS", req_callid (req));
-
-  FUSE_FOP (state,
-	    fuse_statfs_cbk,
-	    statfs,
-	    &state->fuse_loc.loc);
-}
-
-static void
-fuse_setxattr (fuse_req_t req,
-	       fuse_ino_t ino,
-	       const char *name,
-	       const char *value,
-	       size_t size,
-	       int flags)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->size = size;
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": SETXATTR %s/%"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req),
-	    state->fuse_loc.loc.path, (int64_t)ino, name);
-
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  state->dict = get_new_dict ();
-
-  dict_set (state->dict, (char *)name,
-	    bin_to_data ((void *)value, size));
-  dict_ref (state->dict);
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": SETXATTR %s/%"PRId64" (%s)", req_callid (req),
-	  state->fuse_loc.loc.path, (int64_t)ino, name);
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    setxattr,
-	    &state->fuse_loc.loc,
-	    state->dict,
-	    flags);
-
-  return;
-}
-
-
-static int32_t
-fuse_xattr_cbk (call_frame_t *frame,
-		void *cookie,
-		xlator_t *this,
-		int32_t op_ret,
-		int32_t op_errno,
-		dict_t *dict)
-{
-  int32_t ret = op_ret;
-  char *value = "";
-  fuse_state_t *state = frame->root->state;
-  fuse_req_t req = state->req;
-
-  if (ret >= 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": %s => %d", frame->root->unique,
-	    state->fuse_loc.loc.path, op_ret);
-
-    /* if successful */
-    if (state->name) {
-      /* if callback for getxattr */
-      data_t *value_data = dict_get (dict, state->name);
-      if (value_data) {
-	ret = value_data->len; /* Don't return the value for '\0' */
-	value = value_data->data;
-	
-	if (state->size) {
-	  /* if callback for getxattr and asks for value */
-	  fuse_reply_buf (req, value, ret);
-	} else {
-	  /* if callback for getxattr and asks for value length only */
-	  fuse_reply_xattr (req, ret);
-	}
-      } else {
-	fuse_reply_err (req, ENODATA);
-      }
-    } else {
-      /* if callback for listxattr */
-      int32_t len = 0;
-      data_pair_t *trav = dict->members_list;
-      while (trav) {
-	len += strlen (trav->key) + 1;
-	trav = trav->next;
-      }
-      value = alloca (len + 1);
-      ERR_ABORT (value);
-      len = 0;
-      trav = dict->members_list;
-      while (trav) {
-	strcpy (value + len, trav->key);
-	value[len + strlen(trav->key)] = '\0';
-	len += strlen (trav->key) + 1;
-	trav = trav->next;
-      }
-      if (state->size) {
-	/* if callback for listxattr and asks for list of keys */
-	fuse_reply_buf (req, value, len);
-      } else {
-	/* if callback for listxattr and asks for length of keys only */
-	fuse_reply_xattr (req, len);
-      }
-    }
-  } else {
-    /* if failure - no need to check if listxattr or getxattr */
-    if (op_errno != ENODATA) {
-      gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	      "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	      state->fuse_loc.loc.path, op_errno);
-    } else {
-      gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	      "%"PRId64": %s => -1 (%d)", frame->root->unique,
-	      state->fuse_loc.loc.path, op_errno);
-    }
-
-    fuse_reply_err (req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-
-static void
-fuse_getxattr (fuse_req_t req,
-	       fuse_ino_t ino,
-	       const char *name,
-	       size_t size)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->size = size;
-  state->name = strdup (name);
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": GETXATTR %s/%"PRId64" (%s) (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), state->fuse_loc.loc.path, (int64_t)ino, name);
-
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": GETXATTR %s/%"PRId64" (%s)", req_callid (req),
-	  state->fuse_loc.loc.path, (int64_t)ino, name);
-
-  FUSE_FOP (state,
-	    fuse_xattr_cbk,
-	    getxattr,
-	    &state->fuse_loc.loc);
-
-  return;
-}
-
-
-static void
-fuse_listxattr (fuse_req_t req,
-		fuse_ino_t ino,
-		size_t size)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->size = size;
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": LISTXATTR %s/%"PRId64" (fuse_loc_fill() returned NULL inode)", 
-	    req_callid (req), state->fuse_loc.loc.path, (int64_t)ino);
-
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": LISTXATTR %s/%"PRId64, req_callid (req),
-	  state->fuse_loc.loc.path, (int64_t)ino);
-
-  FUSE_FOP (state,
-	    fuse_xattr_cbk,
-	    getxattr,
-	    &state->fuse_loc.loc);
-
-  return;
-}
-
-
-static void
-fuse_removexattr (fuse_req_t req,
-		  fuse_ino_t ino,
-		  const char *name)
-
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  fuse_loc_fill (&state->fuse_loc, state, ino, NULL);
-  if (!state->fuse_loc.loc.inode) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": REMOVEXATTR %s/%"PRId64" (%s) (fuse_loc_fill() returned NULL inode)",
-	    req_callid (req), state->fuse_loc.loc.path, (int64_t)ino, name);
-
-    fuse_reply_err (req, EINVAL);
-    return;
-  }
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": REMOVEXATTR %s/%"PRId64" (%s)", req_callid (req),
-	  state->fuse_loc.loc.path, (int64_t)ino, name);
-
-  FUSE_FOP (state,
-	    fuse_err_cbk,
-	    removexattr,
-	    &state->fuse_loc.loc,
-	    name);
-
-  return;
-}
-
-static int32_t
-fuse_getlk_cbk (call_frame_t *frame,
-		void *cookie,
-		xlator_t *this,
-		int32_t op_ret,
-		int32_t op_errno,
-		struct flock *lock)
-{
-  fuse_state_t *state = frame->root->state;
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": ERR => 0", frame->root->unique);
-    fuse_reply_lock (state->req, lock);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": ERR => -1 (%d)", frame->root->unique, op_errno);
-    fuse_reply_err (state->req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-static void
-fuse_getlk (fuse_req_t req,
-	    fuse_ino_t ino,
-	    struct fuse_file_info *fi,
-	    struct flock *lock)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->req = req;
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": GETLK %p", req_callid (req), FI_TO_FD (fi));
-
-  FUSE_FOP (state,
-	    fuse_getlk_cbk,
-	    lk,
-	    FI_TO_FD (fi),
-	    F_GETLK,
-	    lock);
-
-  return;
-}
-
-static int32_t
-fuse_setlk_cbk (call_frame_t *frame,
-		void *cookie,
-		xlator_t *this,
-		int32_t op_ret,
-		int32_t op_errno,
-		struct flock *lock)
-{
-  fuse_state_t *state = frame->root->state;
-
-  if (op_ret == 0) {
-    gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	    "%"PRId64": ERR => 0", frame->root->unique);
-    fuse_reply_err (state->req, 0);
-  } else {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR,
-	    "%"PRId64": ERR => -1 (%d)", frame->root->unique, op_errno);
-    fuse_reply_err (state->req, op_errno);
-  }
-
-  free_state (state);
-  STACK_DESTROY (frame->root);
-
-  return 0;
-}
-
-static void
-fuse_setlk (fuse_req_t req,
-	    fuse_ino_t ino,
-	    struct fuse_file_info *fi,
-	    struct flock *lock,
-	    int sleep)
-{
-  fuse_state_t *state;
-
-  state = state_from_req (req);
-  state->req = req;
-
-  gf_log ("glusterfs-fuse", GF_LOG_DEBUG,
-	  "%"PRId64": SETLK %p (sleep=%d)", req_callid (req), FI_TO_FD (fi),
-	  sleep);
-
-  FUSE_FOP (state,
-	    fuse_setlk_cbk,
-	    lk,
-	    FI_TO_FD(fi),
-	    (sleep ? F_SETLKW : F_SETLK),
-	    lock);
-
-  return;
-}
-
-
-int32_t
-fuse_forget_notify (call_frame_t *frame, xlator_t *this,
-		    inode_t *inode)
-{
-  return 0;
-}
-
-struct xlator_fops fuse_xl_fops = {
-  .forget = fuse_forget_notify
-};
-
-static void
-fuse_init (void *data, struct fuse_conn_info *conn)
-{
-  transport_t *trans = data;
-  struct fuse_private *priv = trans->private;
-  xlator_t *xl = trans->xl;
-  int32_t ret;
-
-  xl->name = "fuse";
-  xl->fops = &fuse_xl_fops;
-  xl->itable = inode_table_new (0, xl);
-  xl->notify = default_notify;
-  ret = xlator_tree_init (xl);
-  if (ret == 0) {
-
-  } else {
-    fuse_unmount (priv->mountpoint, priv->ch);
-    exit (1);
-  }
-}
-
-
-static void
-fuse_destroy (void *data)
-{
-
-}
-
-struct fuse_lowlevel_ops fuse_ops = {
-  .init         = fuse_init,
-  .destroy      = fuse_destroy,
-  .lookup       = fuse_lookup,
-  .forget       = fuse_forget,
-  .getattr      = fuse_getattr,
-  .setattr      = fuse_setattr,
-  .opendir      = fuse_opendir,
-  .readdir      = fuse_readdir,
-  .releasedir   = fuse_releasedir,
-  .access       = fuse_access,
-  .readlink     = fuse_readlink,
-  .mknod        = fuse_mknod,
-  .mkdir        = fuse_mkdir,
-  .unlink       = fuse_unlink,
-  .rmdir        = fuse_rmdir,
-  .symlink      = fuse_symlink,
-  .rename       = fuse_rename,
-  .link         = fuse_link,
-  .create       = fuse_create,
-  .open         = fuse_open,
-  .read         = fuse_readv,
-  .write        = fuse_write,
-  .flush        = fuse_flush,
-  .release      = fuse_release,
-  .fsync        = fuse_fsync,
-  .fsyncdir     = fuse_fsyncdir,
-  .statfs       = fuse_statfs,
-  .setxattr     = fuse_setxattr,
-  .getxattr     = fuse_getxattr,
-  .listxattr    = fuse_listxattr,
-  .removexattr  = fuse_removexattr,
-  .getlk        = fuse_getlk,
-  .setlk        = fuse_setlk
-};
-
-
-static int32_t
-fuse_transport_disconnect (transport_t *this)
-{
-  struct fuse_private *priv = this->private;
-
-  gf_log ("glusterfs-fuse",
-	  GF_LOG_DEBUG,
-	  "cleaning up fuse transport in disconnect handler");
-
-  fuse_session_remove_chan (priv->ch);
-  fuse_session_destroy (priv->se);
-  fuse_unmount (priv->mountpoint, priv->ch);
-
-  FREE (priv);
-  priv = NULL;
-  this->private = NULL;
-
-  /* TODO: need graceful exit. every xlator should be ->fini()'ed
-     and come out of main poll loop cleanly
-  */
-  exit (0);
-
-  return -1;
-}
-
-
-static int32_t
-fuse_transport_init (transport_t *this,
-		     dict_t *options,
-		     event_notify_fn_t notify)
-{
-  char *mountpoint = strdup (data_to_str (dict_get (options, 
-						    "mountpoint")));
-  char *source;
-  asprintf (&source, "fsname=glusterfs");
-  char *argv[] = { "glusterfs",
-
-#ifndef GF_DARWIN_HOST_OS
-                   "-o", "nonempty",
-#endif
-                   "-o", "allow_other",
-                   "-o", "default_permissions",
-		   "-o", source,
-		   "-o", "max_readahead=1048576",
-		   "-o", "max_read=1048576",
-		   "-o", "max_write=1048576",
-                   NULL };
-#ifdef GF_DARWIN_HOST_OS
-  int argc = 13;
-#else
-  int argc = 15;
-#endif
-
-  struct fuse_args args = FUSE_ARGS_INIT(argc,
-					 argv);
-  struct fuse_private *priv = NULL;
-  int32_t res;
-
-  priv = CALLOC (1, sizeof (*priv));
-  ERR_ABORT (priv);
-
-
-  this->notify = notify;
-  this->private = (void *)priv;
-
-  priv->ch = fuse_mount (mountpoint, &args);
-  if (!priv->ch) {
-    gf_log ("glusterfs-fuse",
-	    GF_LOG_ERROR, "fuse_mount failed (%s)\n", strerror (errno));
-    fuse_opt_free_args(&args);
-    goto err_free;
-  }
-
-  priv->se = fuse_lowlevel_new (&args, &fuse_ops, sizeof (fuse_ops), this);
-  fuse_opt_free_args(&args);
-
-  res = fuse_set_signal_handlers (priv->se);
-  if (res == -1) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR, "fuse_set_signal_handlers failed");
-    goto err;
-  }
-
-  fuse_session_add_chan (priv->se, priv->ch);
-
-  priv->fd = fuse_chan_fd (priv->ch);
-  this->buf = data_ref (data_from_dynptr (NULL, 0));
-  this->buf->is_locked = 1;
-
-  priv->mountpoint = mountpoint;
-
-  transport_ref (this);
-  //poll_register (this->xl_private, priv->fd, this);
-
-  return 0;
-
- err: 
-    fuse_unmount (mountpoint, priv->ch);
- err_free:
-    FREE (mountpoint);
-    mountpoint = NULL;
-  return -1;
-}
-
-void
-guts_log_req (void *, int32_t);
-
-static void *
-fuse_thread_proc (void *data)
-{
-  transport_t *trans = data;
-  struct fuse_private *priv = trans->private;
-  int32_t res = 0;
-  data_t *buf = trans->buf;
-  int32_t ref = 0;
-  size_t chan_size = fuse_chan_bufsize (priv->ch);
-  char *recvbuf = CALLOC (1, chan_size);
-  ERR_ABORT (recvbuf);
-
-  while (!fuse_session_exited (priv->se)) {
-    int32_t fuse_chan_receive (struct fuse_chan * ch,
-			       char *buf,
-			       int32_t size);
-
-
-    res = fuse_chan_receive (priv->ch,
-			     recvbuf,
-			     chan_size);
-
-    if (res == -1) {
-      transport_disconnect (trans);
-    }
-
-    buf = trans->buf;
-
-    if (res && res != -1) {
-      if (buf->len < (res)) {
-	if (buf->data) {
-	  FREE (buf->data);
-	  buf->data = NULL;
-	}
-	buf->data = CALLOC (1, res);
-	ERR_ABORT (buf->data);
-	buf->len = res;
-      }
-      memcpy (buf->data, recvbuf, res); // evil evil
-      guts_log_req (buf->data, res);
-      fuse_session_process (priv->se,
-			    buf->data,
-			    res,
-			    priv->ch);
-    }
-
-    LOCK (&buf->lock);
-    ref = buf->refcount;
-    UNLOCK (&buf->lock);
-    if (1) {
-      data_unref (buf);
-
-      trans->buf = data_ref (data_from_dynptr (NULL, 0));
-      trans->buf->is_locked = 1;
-    }
-  }
-
-  exit (0);
-
-  return NULL;
-}
-
-
-static int32_t
-fuse_transport_notify (xlator_t *xl,
-		       int32_t event,
-		       void *data,
-		       ...)
-{
-  transport_t *trans = data;
-  struct fuse_private *priv = trans->private;
-  int32_t res = 0;
-  data_t *buf;
-  int32_t ref = 0;
-
-  if (event == GF_EVENT_POLLERR) {
-    gf_log ("glusterfs-fuse", GF_LOG_ERROR, "got GF_EVENT_POLLERR");
-    transport_disconnect (trans);
-    return -1;
-  }
-
-  if (event != GF_EVENT_POLLIN) {
-    gf_log ("glusterfs-fuse", GF_LOG_WARNING, "Ignoring notify event %d",
-	    event);
-    return 0;
-  }
-
-  if (!fuse_session_exited(priv->se)) {
-    static size_t chan_size = 0;
-
-    int32_t fuse_chan_receive (struct fuse_chan * ch,
-			       char *buf,
-			       int32_t size);
-    if (!chan_size)
-      chan_size = fuse_chan_bufsize (priv->ch) ;
-
-    buf = trans->buf;
-
-    if (!buf->data) {
-      buf->data = MALLOC (chan_size);
-      ERR_ABORT (buf->data);
-      buf->len = chan_size;
-    }
-
-    res = fuse_chan_receive (priv->ch,
-			     buf->data,
-			     chan_size);
-    /*    if (res == -1) {
-      transport_destroy (trans);
-    */
-    if (res && res != -1) {
-      /* trace the request and log it to tio file */
-      guts_log_req (buf->data, res);
-      fuse_session_process (priv->se,
-			    buf->data,
-			    res,
-			    priv->ch);
-    }
-
-    LOCK (&buf->lock);
-    ref = buf->refcount;
-    UNLOCK (&buf->lock);
-    /* TODO do the check with a lock */
-    if (ref > 1) {
-      data_unref (buf);
-
-      //      trans->buf = data_ref (data_from_dynptr (malloc (fuse_chan_bufsize (priv->ch)),
-      trans->buf = data_ref (data_from_dynptr (NULL, 0));
-      trans->buf->data = MALLOC (chan_size);
-      ERR_ABORT (trans->buf->data);
-      trans->buf->len = chan_size;
-      trans->buf->is_locked = 1;
-    }
-  } else {
-    transport_disconnect (trans);
-  }
-
-  /*
-  if (fuse_session_exited (priv->se)) {
-    transport_destroy (trans);
-    res = -1;
-    }*/
-
-  return res >= 0 ? 0 : res;
-}
-
-static void
-fuse_transport_fini (transport_t *this)
-{
-
-}
-
-static struct transport_ops fuse_transport_ops = {
-  .disconnect = fuse_transport_disconnect,
-};
-
-static transport_t fuse_transport = {
-  .ops = &fuse_transport_ops,
-  .private = NULL,
-  .xl = NULL,
-  .init = fuse_transport_init,
-  .fini = fuse_transport_fini,
-  .notify = fuse_transport_notify
-};
-
-
-transport_t *
-glusterfs_mount (glusterfs_ctx_t *ctx,
-		 const char *mount_point)
-{
-  dict_t *options = get_new_dict ();
-  transport_t *new_fuse = CALLOC (1, sizeof (*new_fuse));
-  ERR_ABORT (new_fuse);
-
-  memcpy (new_fuse, &fuse_transport, sizeof (*new_fuse));
-  new_fuse->ops = &fuse_transport_ops;
-  new_fuse->xl_private = ctx;
-
-  dict_set (options,
-	    "mountpoint", 
-	    str_to_data ((char *)mount_point));
-
-  return (new_fuse->init (new_fuse,
-			  options,
-			  fuse_transport_notify) == 0 ? new_fuse : NULL);
-}
-
-int32_t
-fuse_thread (pthread_t *thread, void *data)
-{
-  return pthread_create (thread, NULL, fuse_thread_proc, data);
-}
-
-