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-rw-r--r--xlators/cluster/unify/src/unify.c4589
1 files changed, 0 insertions, 4589 deletions
diff --git a/xlators/cluster/unify/src/unify.c b/xlators/cluster/unify/src/unify.c
deleted file mode 100644
index f3da6d0bac7..00000000000
--- a/xlators/cluster/unify/src/unify.c
+++ /dev/null
@@ -1,4589 +0,0 @@
-/*
- Copyright (c) 2006-2011 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/>.
-*/
-
-/**
- * xlators/cluster/unify:
- * - This xlator is one of the main translator in GlusterFS, which
- * actually does the clustering work of the file system. One need to
- * understand that, unify assumes file to be existing in only one of
- * the child node, and directories to be present on all the nodes.
- *
- * NOTE:
- * Now, unify has support for global namespace, which is used to keep a
- * global view of fs's namespace tree. The stat for directories are taken
- * just from the namespace, where as for files, just 'ia_ino' is taken from
- * Namespace node, and other stat info is taken from the actual storage node.
- * Also Namespace node helps to keep consistant inode for files across
- * glusterfs (re-)mounts.
- */
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include "glusterfs.h"
-#include "unify.h"
-#include "dict.h"
-#include "xlator.h"
-#include "hashfn.h"
-#include "logging.h"
-#include "stack.h"
-#include "defaults.h"
-#include "common-utils.h"
-#include <signal.h>
-#include <libgen.h>
-#include "compat-errno.h"
-#include "compat.h"
-
-#define UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR(_loc) do { \
- if (!(_loc && _loc->inode)) { \
- STACK_UNWIND (frame, -1, EINVAL, NULL, NULL, NULL); \
- return 0; \
- } \
-} while(0)
-
-
-#define UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR(_fd) do { \
- if (!(_fd && !fd_ctx_get (_fd, this, NULL))) { \
- STACK_UNWIND (frame, -1, EBADFD, NULL, NULL); \
- return 0; \
- } \
-} while(0)
-
-#define UNIFY_CHECK_FD_AND_UNWIND_ON_ERR(_fd) do { \
- if (!_fd) { \
- STACK_UNWIND (frame, -1, EBADFD, NULL, NULL); \
- return 0; \
- } \
-} while(0)
-
-/**
- * unify_local_wipe - free all the extra allocation of local->* here.
- */
-static void
-unify_local_wipe (unify_local_t *local)
-{
- /* Free the strdup'd variables in the local structure */
- if (local->name) {
- GF_FREE (local->name);
- }
- loc_wipe (&local->loc1);
- loc_wipe (&local->loc2);
-}
-
-
-
-/*
- * unify_normalize_stats -
- */
-void
-unify_normalize_stats (struct statvfs *buf,
- unsigned long bsize,
- unsigned long frsize)
-{
- double factor;
-
- if (buf->f_bsize != bsize) {
- factor = ((double) buf->f_bsize) / bsize;
- buf->f_bsize = bsize;
- buf->f_bfree = (fsblkcnt_t) (factor * buf->f_bfree);
- buf->f_bavail = (fsblkcnt_t) (factor * buf->f_bavail);
- }
-
- if (buf->f_frsize != frsize) {
- factor = ((double) buf->f_frsize) / frsize;
- buf->f_frsize = frsize;
- buf->f_blocks = (fsblkcnt_t) (factor * buf->f_blocks);
- }
-}
-
-
-xlator_t *
-unify_loc_subvol (loc_t *loc, xlator_t *this)
-{
- unify_private_t *priv = NULL;
- xlator_t *subvol = NULL;
- int16_t *list = NULL;
- long index = 0;
- xlator_t *subvol_i = NULL;
- int ret = 0;
- uint64_t tmp_list = 0;
-
- priv = this->private;
- subvol = NS (this);
-
- if (!IA_ISDIR (loc->inode->ia_type)) {
- ret = inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
- if (!list)
- goto out;
-
- for (index = 0; list[index] != -1; index++) {
- subvol_i = priv->xl_array[list[index]];
- if (subvol_i != NS (this)) {
- subvol = subvol_i;
- break;
- }
- }
- }
-out:
- return subvol;
-}
-
-
-
-/**
- * unify_statfs_cbk -
- */
-int32_t
-unify_statfs_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct statvfs *stbuf)
-{
- int32_t callcnt = 0;
- struct statvfs *dict_buf = NULL;
- unsigned long bsize;
- unsigned long frsize;
- unify_local_t *local = (unify_local_t *)frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- if (op_ret >= 0) {
- /* when a call is successfull, add it to local->dict */
- dict_buf = &local->statvfs_buf;
-
- if (dict_buf->f_bsize != 0) {
- bsize = max (dict_buf->f_bsize,
- stbuf->f_bsize);
-
- frsize = max (dict_buf->f_frsize,
- stbuf->f_frsize);
- unify_normalize_stats(dict_buf, bsize, frsize);
- unify_normalize_stats(stbuf, bsize, frsize);
- } else {
- dict_buf->f_bsize = stbuf->f_bsize;
- dict_buf->f_frsize = stbuf->f_frsize;
- }
-
- dict_buf->f_blocks += stbuf->f_blocks;
- dict_buf->f_bfree += stbuf->f_bfree;
- dict_buf->f_bavail += stbuf->f_bavail;
- dict_buf->f_files += stbuf->f_files;
- dict_buf->f_ffree += stbuf->f_ffree;
- dict_buf->f_favail += stbuf->f_favail;
- dict_buf->f_fsid = stbuf->f_fsid;
- dict_buf->f_flag = stbuf->f_flag;
- dict_buf->f_namemax = stbuf->f_namemax;
- local->op_ret = op_ret;
- } else {
- /* fop on storage node has failed due to some error */
- if (op_errno != ENOTCONN) {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): %s",
- prev_frame->this->name,
- strerror (op_errno));
- }
- local->op_errno = op_errno;
- }
- callcnt = --local->call_count;
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->statvfs_buf);
- }
-
- return 0;
-}
-
-/**
- * unify_statfs -
- */
-int32_t
-unify_statfs (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc)
-{
- unify_local_t *local = NULL;
- xlator_list_t *trav = this->children;
-
- INIT_LOCAL (frame, local);
- local->call_count = ((unify_private_t *)this->private)->child_count;
-
- while(trav) {
- STACK_WIND (frame,
- unify_statfs_cbk,
- trav->xlator,
- trav->xlator->fops->statfs,
- loc);
- trav = trav->next;
- }
-
- return 0;
-}
-
-/**
- * unify_buf_cbk -
- */
-int32_t
-unify_buf_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *buf)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s(): child(%s): path(%s): %s",
- gf_fop_list[frame->root->op],
- prev_frame->this->name,
- (local->loc1.path)?local->loc1.path:"",
- strerror (op_errno));
-
- local->op_errno = op_errno;
- if ((op_errno == ENOENT) && priv->optimist)
- local->op_ret = 0;
- }
-
- if (op_ret >= 0) {
- local->op_ret = 0;
-
- if (NS (this) == prev_frame->this) {
- local->ia_ino = buf->ia_ino;
- /* If the entry is directory, get the stat
- from NS node */
- if (IA_ISDIR (buf->ia_type) ||
- !local->stbuf.ia_blksize) {
- local->stbuf = *buf;
- }
- }
-
- if ((!IA_ISDIR (buf->ia_type)) &&
- (NS (this) != prev_frame->this)) {
- /* If file, take the stat info from Storage
- node. */
- local->stbuf = *buf;
- }
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- /* If the inode number is not filled, operation should
- fail */
- if (!local->ia_ino)
- local->op_ret = -1;
-
- local->stbuf.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->stbuf);
- }
-
- return 0;
-}
-
-#define check_if_dht_linkfile(s) \
- ((st_mode_from_ia (s->ia_prot, s->ia_type) & ~S_IFMT) == S_ISVTX)
-
-/**
- * unify_lookup_cbk -
- */
-int32_t
-unify_lookup_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- dict_t *dict,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- inode_t *tmp_inode = NULL;
- dict_t *local_dict = NULL;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- if (local->revalidate &&
- (op_errno == ESTALE)) {
- /* ESTALE takes priority */
- local->op_errno = op_errno;
- local->failed = 1;
- }
-
- if ((op_errno != ENOTCONN)
- && (op_errno != ENOENT)
- && (local->op_errno != ESTALE)) {
- /* if local->op_errno is already ESTALE, then
- * ESTALE has to propogated to the parent first.
- * do not enter here.
- */
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- priv->xl_array[(long)cookie]->name,
- local->loc1.path, strerror (op_errno));
- local->op_errno = op_errno;
- local->failed = 1;
-
- } else if (local->revalidate &&
- (local->op_errno != ESTALE) &&
- !(priv->optimist && (op_errno == ENOENT))) {
-
- gf_log (this->name,
- (op_errno == ENOTCONN) ?
- GF_LOG_DEBUG:GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- priv->xl_array[(long)cookie]->name,
- local->loc1.path, strerror (op_errno));
- local->op_errno = op_errno;
- local->failed = 1;
- }
- }
-
- if (op_ret == 0) {
- local->op_ret = 0;
-
- if (check_if_dht_linkfile(buf)) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "file %s may be DHT link file on %s, "
- "make sure the backend is not shared "
- "between unify and DHT",
- local->loc1.path,
- priv->xl_array[(long)cookie]->name);
- }
-
- if (local->stbuf.ia_type && local->stbuf.ia_blksize) {
- /* make sure we already have a stbuf
- stored in local->stbuf */
- if (IA_ISDIR (local->stbuf.ia_type) &&
- !IA_ISDIR (buf->ia_type)) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "[CRITICAL] '%s' is directory "
- "on namespace, non-directory "
- "on node '%s', returning EIO",
- local->loc1.path,
- priv->xl_array[(long)cookie]->name);
- local->return_eio = 1;
- }
- if (!IA_ISDIR (local->stbuf.ia_type) &&
- IA_ISDIR (buf->ia_type)) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "[CRITICAL] '%s' is directory "
- "on node '%s', non-directory "
- "on namespace, returning EIO",
- local->loc1.path,
- priv->xl_array[(long)cookie]->name);
- local->return_eio = 1;
- }
- }
-
- if (!local->revalidate && !IA_ISDIR (buf->ia_type)) {
- /* This is the first time lookup on file*/
- if (!local->list) {
- /* list is not allocated, allocate
- the max possible range */
- local->list = GF_CALLOC (1, 2 * (priv->child_count + 2),
- gf_unify_mt_int16_t);
- if (!local->list) {
- gf_log (this->name,
- GF_LOG_CRITICAL,
- "Not enough memory");
- STACK_UNWIND (frame, -1,
- ENOMEM, inode,
- NULL, NULL, NULL);
- return 0;
- }
- }
- /* update the index of the list */
- local->list [local->index++] =
- (int16_t)(long)cookie;
- }
-
- if (!local->revalidate && IA_ISDIR (buf->ia_type)) {
- /* fresh lookup of a directory */
- inode_ctx_put (local->loc1.inode, this,
- priv->inode_generation);
- }
-
- if ((!local->dict) && dict &&
- (priv->xl_array[(long)cookie] != NS(this))) {
- local->dict = dict_ref (dict);
- }
-
- /* index of NS node is == total child count */
- if (priv->child_count == (int16_t)(long)cookie) {
- /* Take the inode number from namespace */
- local->ia_ino = buf->ia_ino;
- if (IA_ISDIR (buf->ia_type) ||
- !(local->stbuf.ia_blksize)) {
- local->stbuf = *buf;
- local->oldpostparent = *postparent;
- }
- } else if (!IA_ISDIR (buf->ia_type)) {
- /* If file, then get the stat from
- storage node */
- local->stbuf = *buf;
- }
-
- if (local->ia_nlink < buf->ia_nlink) {
- local->ia_nlink = buf->ia_nlink;
- }
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- local_dict = local->dict;
- if (local->return_eio) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "[CRITICAL] Unable to fix the path (%s) with "
- "self-heal, try manual verification. "
- "returning EIO.", local->loc1.path);
- unify_local_wipe (local);
- STACK_UNWIND (frame, -1, EIO, inode, NULL, NULL);
- if (local_dict) {
- dict_unref (local_dict);
- }
- return 0;
- }
-
- if (!local->stbuf.ia_blksize) {
- /* Inode not present */
- local->op_ret = -1;
- } else {
- if (!local->revalidate &&
- !IA_ISDIR (local->stbuf.ia_type)) {
- /* If its a file, big array is useless,
- allocate the smaller one */
- int16_t *list = NULL;
- list = GF_CALLOC (1, 2 * (local->index + 1),
- gf_unify_mt_int16_t);
- ERR_ABORT (list);
- memcpy (list, local->list, 2 * local->index);
- /* Make the end of the list as -1 */
- GF_FREE (local->list);
- local->list = list;
- local->list [local->index] = -1;
- /* Update the inode's ctx with proper array */
- /* TODO: log on failure */
- inode_ctx_put (local->loc1.inode, this,
- (uint64_t)(long)local->list);
- }
-
- if (IA_ISDIR(local->loc1.inode->ia_type)) {
- /* lookup is done for directory */
- if (local->failed && priv->self_heal) {
- /* Triggering self-heal */
- /* means, self-heal required for this
- inode */
- local->inode_generation = 0;
- priv->inode_generation++;
- }
- } else {
- local->stbuf.ia_ino = local->ia_ino;
- }
-
- local->stbuf.ia_nlink = local->ia_nlink;
- }
- if (local->op_ret == -1) {
- if (!local->revalidate && local->list)
- GF_FREE (local->list);
- }
-
- if ((local->op_ret >= 0) && local->failed &&
- local->revalidate) {
- /* Done revalidate, but it failed */
- if ((op_errno != ENOTCONN)
- && (local->op_errno != ESTALE)) {
- gf_log (this->name, GF_LOG_ERROR,
- "Revalidate failed for path(%s): %s",
- local->loc1.path, strerror (op_errno));
- }
- local->op_ret = -1;
- }
-
- if ((priv->self_heal && !priv->optimist) &&
- (!local->revalidate && (local->op_ret == 0) &&
- IA_ISDIR(local->stbuf.ia_type))) {
- /* Let the self heal be done here */
- zr_unify_self_heal (frame, this, local);
- local_dict = NULL;
- } else {
- if (local->failed) {
- /* NOTE: directory lookup is sent to all
- * subvolumes and success from a subvolume
- * might set local->op_ret to 0 (zero) */
- local->op_ret = -1;
- }
-
- /* either no self heal, or op_ret == -1 (failure) */
- tmp_inode = local->loc1.inode;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- tmp_inode, &local->stbuf, local->dict,
- &local->oldpostparent);
- }
- if (local_dict) {
- dict_unref (local_dict);
- }
- }
-
- return 0;
-}
-
-/**
- * unify_lookup -
- */
-int32_t
-unify_lookup (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- dict_t *xattr_req)
-{
- unify_local_t *local = NULL;
- unify_private_t *priv = this->private;
- int16_t *list = NULL;
- long index = 0;
-
- if (!(loc && loc->inode)) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: Argument not right", loc?loc->path:"(null)");
- STACK_UNWIND (frame, -1, EINVAL, NULL, NULL, NULL, NULL);
- return 0;
- }
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, loc->inode, NULL, NULL, NULL);
- return 0;
- }
-
- if (inode_ctx_get (loc->inode, this, NULL)
- && IA_ISDIR (loc->inode->ia_type)) {
- local->revalidate = 1;
- }
-
- if (!inode_ctx_get (loc->inode, this, NULL) &&
- loc->inode->ia_type &&
- !IA_ISDIR (loc->inode->ia_type)) {
- uint64_t tmp_list = 0;
- /* check if revalidate or fresh lookup */
- inode_ctx_get (loc->inode, this, &tmp_list);
- local->list = (int16_t *)(long)tmp_list;
- }
-
- if (local->list) {
- list = local->list;
- for (index = 0; list[index] != -1; index++);
- if (index != 2) {
- if (index < 2) {
- gf_log (this->name, GF_LOG_ERROR,
- "returning ESTALE for %s: file "
- "count is %ld", loc->path, index);
- /* Print where all the file is present */
- for (index = 0;
- local->list[index] != -1; index++) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: found on %s", loc->path,
- priv->xl_array[list[index]]->name);
- }
- unify_local_wipe (local);
- STACK_UNWIND (frame, -1, ESTALE,
- NULL, NULL, NULL, NULL);
- return 0;
- } else {
- /* There are more than 2 presences */
- /* Just log and continue */
- gf_log (this->name, GF_LOG_ERROR,
- "%s: file count is %ld",
- loc->path, index);
- /* Print where all the file is present */
- for (index = 0;
- local->list[index] != -1; index++) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: found on %s", loc->path,
- priv->xl_array[list[index]]->name);
- }
- }
- }
-
- /* is revalidate */
- local->revalidate = 1;
-
- for (index = 0; list[index] != -1; index++)
- local->call_count++;
-
- for (index = 0; list[index] != -1; index++) {
- char need_break = (list[index+1] == -1);
- STACK_WIND_COOKIE (frame,
- unify_lookup_cbk,
- (void *)(long)list[index], //cookie
- priv->xl_array [list[index]],
- priv->xl_array [list[index]]->fops->lookup,
- loc,
- xattr_req);
- if (need_break)
- break;
- }
- } else {
- if (loc->inode->ia_type) {
- if (inode_ctx_get (loc->inode, this, NULL)) {
- inode_ctx_get (loc->inode, this,
- &local->inode_generation);
- }
- }
- /* This is first call, there is no list */
- /* call count should be all child + 1 namespace */
- local->call_count = priv->child_count + 1;
-
- for (index = 0; index <= priv->child_count; index++) {
- STACK_WIND_COOKIE (frame,
- unify_lookup_cbk,
- (void *)index, //cookie
- priv->xl_array[index],
- priv->xl_array[index]->fops->lookup,
- loc,
- xattr_req);
- }
- }
-
- return 0;
-}
-
-/**
- * unify_stat - if directory, get the stat directly from NameSpace child.
- * if file, check for a hint and send it only there (also to NS).
- * if its a fresh stat, then do it on all the nodes.
- *
- * NOTE: for all the call, sending cookie as xlator pointer, which will be
- * used in cbk.
- */
-int32_t
-unify_stat (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc)
-{
- unify_local_t *local = NULL;
- unify_private_t *priv = this->private;
- int16_t index = 0;
- int16_t *list = NULL;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, NULL);
- return 0;
- }
- local->ia_ino = loc->inode->ino;
- if (IA_ISDIR (loc->inode->ia_type)) {
- /* Directory */
- local->call_count = 1;
- STACK_WIND (frame, unify_buf_cbk, NS(this),
- NS(this)->fops->stat, loc);
- } else {
- /* File */
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++)
- local->call_count++;
-
- for (index = 0; list[index] != -1; index++) {
- char need_break = (list[index+1] == -1);
- STACK_WIND (frame,
- unify_buf_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->stat,
- loc);
- if (need_break)
- break;
- }
- }
-
- return 0;
-}
-
-/**
- * unify_access_cbk -
- */
-int32_t
-unify_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;
-}
-
-
-/**
- * unify_access - Send request to only namespace, which has all the
- * attributes set for the file.
- */
-int32_t
-unify_access (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- int32_t mask)
-{
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- STACK_WIND (frame,
- unify_access_cbk,
- NS(this),
- NS(this)->fops->access,
- loc,
- mask);
-
- return 0;
-}
-
-int32_t
-unify_mkdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- inode_t *tmp_inode = NULL;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if ((op_ret == -1) && !(priv->optimist &&
- (op_errno == ENOENT ||
- op_errno == EEXIST))) {
- /* TODO: Decrement the inode_generation of
- * this->inode's parent inode, hence the missing
- * directory is created properly by self-heal.
- * Currently, there is no way to get the parent
- * inode directly.
- */
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- priv->xl_array[(long)cookie]->name,
- local->loc1.path, strerror (op_errno));
- if (op_errno != EEXIST)
- local->failed = 1;
- local->op_errno = op_errno;
- }
-
- if (op_ret >= 0)
- local->op_ret = 0;
-
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- if (!local->failed) {
- inode_ctx_put (local->loc1.inode, this,
- priv->inode_generation);
- }
-
- tmp_inode = local->loc1.inode;
- unify_local_wipe (local);
-
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- tmp_inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
- }
-
- return 0;
-}
-
-/**
- * unify_ns_mkdir_cbk -
- */
-int32_t
-unify_ns_mkdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- long index = 0;
-
- if (op_ret == -1) {
- /* No need to send mkdir request to other servers,
- * as namespace action failed
- */
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s): %s",
- local->name, strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, NULL,
- NULL, NULL);
- return 0;
- }
-
- /* Create one inode for this entry */
- local->op_ret = 0;
- local->stbuf = *buf;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- local->call_count = priv->child_count;
-
- /* Send mkdir request to all the nodes now */
- for (index = 0; index < priv->child_count; index++) {
- STACK_WIND_COOKIE (frame,
- unify_mkdir_cbk,
- (void *)index, //cookie
- priv->xl_array[index],
- priv->xl_array[index]->fops->mkdir,
- &local->loc1,
- local->mode);
- }
-
- return 0;
-}
-
-
-/**
- * unify_mkdir -
- */
-int32_t
-unify_mkdir (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- mode_t mode)
-{
- unify_local_t *local = NULL;
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- local->mode = mode;
-
- loc_copy (&local->loc1, loc);
-
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, NULL, NULL);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_ns_mkdir_cbk,
- NS(this),
- NS(this)->fops->mkdir,
- loc,
- mode);
- return 0;
-}
-
-/**
- * unify_rmdir_cbk -
- */
-int32_t
-unify_rmdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if (op_ret == 0 || (priv->optimist && (op_errno == ENOENT)))
- local->op_ret = 0;
- if (op_ret == -1)
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->oldpreparent, &local->oldpostparent);
- }
-
- return 0;
-}
-
-/**
- * unify_ns_rmdir_cbk -
- */
-int32_t
-unify_ns_rmdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int16_t index = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- /* No need to send rmdir request to other servers,
- * as namespace action failed
- */
- gf_log (this->name,
- ((op_errno != ENOTEMPTY) ?
- GF_LOG_ERROR : GF_LOG_DEBUG),
- "namespace: path(%s): %s",
- local->loc1.path, strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, NULL, NULL);
- return 0;
- }
-
- local->call_count = priv->child_count;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- for (index = 0; index < priv->child_count; index++) {
- STACK_WIND (frame,
- unify_rmdir_cbk,
- priv->xl_array[index],
- priv->xl_array[index]->fops->rmdir,
- &local->loc1);
- }
-
- return 0;
-}
-
-/**
- * unify_rmdir -
- */
-int32_t
-unify_rmdir (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc)
-{
- unify_local_t *local = NULL;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
-
- loc_copy (&local->loc1, loc);
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, NULL, NULL);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_ns_rmdir_cbk,
- NS(this),
- NS(this)->fops->rmdir,
- loc);
-
- return 0;
-}
-
-/**
- * unify_open_cbk -
- */
-int32_t
-unify_open_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- fd_t *fd)
-{
- int32_t callcnt = 0;
- unify_local_t *local = frame->local;
-
- LOCK (&frame->lock);
- {
- if (op_ret >= 0) {
- local->op_ret = op_ret;
- if (NS(this) != (xlator_t *)cookie) {
- /* Store child node's ptr, used in
- all the f*** / FileIO calls */
- fd_ctx_set (fd, this, (uint64_t)(long)cookie);
- }
- }
- if (op_ret == -1) {
- local->op_errno = op_errno;
- local->failed = 1;
- }
- callcnt = --local->call_count;
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- if ((local->failed == 1) && (local->op_ret >= 0)) {
- local->call_count = 1;
- /* return -1 to user */
- local->op_ret = -1;
- //local->op_errno = EIO;
-
- if (!fd_ctx_get (local->fd, this, NULL)) {
- gf_log (this->name, GF_LOG_ERROR,
- "Open success on child node, "
- "failed on namespace");
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "Open success on namespace, "
- "failed on child node");
- }
- }
-
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret,
- local->op_errno, local->fd);
- }
-
- return 0;
-}
-
-#ifdef GF_DARWIN_HOST_OS
-/**
- * unify_create_lookup_cbk -
- */
-int32_t
-unify_open_lookup_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- dict_t *dict,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- int16_t index = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if ((op_ret == -1) && (op_errno != ENOENT)) {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- priv->xl_array[(long)cookie]->name,
- local->loc1.path, strerror (op_errno));
- local->op_errno = op_errno;
- }
-
- if (op_ret >= 0) {
- local->op_ret = op_ret;
- local->index++;
- if (NS(this) == priv->xl_array[(long)cookie]) {
- local->list[0] = (int16_t)(long)cookie;
- } else {
- local->list[1] = (int16_t)(long)cookie;
- }
- if (IA_ISDIR (buf->ia_type))
- local->failed = 1;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- int16_t file_list[3] = {0,};
- local->op_ret = -1;
-
- file_list[0] = local->list[0];
- file_list[1] = local->list[1];
- file_list[2] = -1;
-
- if (local->index != 2) {
- /* Lookup failed, can't do open */
- gf_log (this->name, GF_LOG_ERROR,
- "%s: present on %d nodes",
- local->name, local->index);
-
- if (local->index < 2) {
- unify_local_wipe (local);
- gf_log (this->name, GF_LOG_ERROR,
- "returning as file found on less "
- "than 2 nodes");
- STACK_UNWIND (frame, local->op_ret,
- local->op_errno, local->fd);
- return 0;
- }
- }
-
- if (local->failed) {
- /* Open on directory, return EISDIR */
- unify_local_wipe (local);
- STACK_UNWIND (frame, -1, EISDIR, local->fd);
- return 0;
- }
-
- /* Everything is perfect :) */
- local->call_count = 2;
-
- for (index = 0; file_list[index] != -1; index++) {
- char need_break = (file_list[index+1] == -1);
- STACK_WIND_COOKIE (frame,
- unify_open_cbk,
- priv->xl_array[file_list[index]],
- priv->xl_array[file_list[index]],
- priv->xl_array[file_list[index]]->fops->open,
- &local->loc1,
- local->flags,
- local->fd, local->wbflags);
- if (need_break)
- break;
- }
- }
-
- return 0;
-}
-
-
-int32_t
-unify_open_readlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- const char *path,
- struct iatt *sbuf)
-{
- int16_t index = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- STACK_UNWIND (frame, -1, ENOENT);
- return 0;
- }
-
- if (path[0] == '/') {
- local->name = gf_strdup (path);
- ERR_ABORT (local->name);
- } else {
- char *tmp_str = gf_strdup (local->loc1.path);
- char *tmp_base = dirname (tmp_str);
- local->name = GF_CALLOC (1, PATH_MAX, gf_unify_mt_char);
- strcpy (local->name, tmp_base);
- strncat (local->name, "/", 1);
- strcat (local->name, path);
- GF_FREE (tmp_str);
- }
-
- local->list = GF_CALLOC (1, sizeof (int16_t) * 3,
- gf_unify_mt_int16_t);
- ERR_ABORT (local->list);
- local->call_count = priv->child_count + 1;
- local->op_ret = -1;
- for (index = 0; index <= priv->child_count; index++) {
- /* Send the lookup to all the nodes including namespace */
- STACK_WIND_COOKIE (frame,
- unify_open_lookup_cbk,
- (void *)(long)index,
- priv->xl_array[index],
- priv->xl_array[index]->fops->lookup,
- &local->loc1,
- NULL);
- }
-
- return 0;
-}
-#endif /* GF_DARWIN_HOST_OS */
-
-/**
- * unify_open -
- */
-int32_t
-unify_open (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- int32_t flags,
- fd_t *fd,
- int32_t wbflags)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = NULL;
- int16_t *list = NULL;
- int16_t index = 0;
- int16_t file_list[3] = {0,};
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Init */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
- local->fd = fd;
- local->flags = flags;
- local->wbflags = wbflags;
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- local->list = list;
- file_list[0] = priv->child_count; /* Thats namespace */
- file_list[2] = -1;
- for (index = 0; list[index] != -1; index++) {
- local->call_count++;
- if (list[index] != priv->child_count)
- file_list[1] = list[index];
- }
-
- if (local->call_count != 2) {
- /* If the lookup was done for file */
- gf_log (this->name, GF_LOG_ERROR,
- "%s: entry_count is %d",
- loc->path, local->call_count);
- for (index = 0; local->list[index] != -1; index++)
- gf_log (this->name, GF_LOG_ERROR, "%s: found on %s",
- loc->path, priv->xl_array[list[index]]->name);
-
- if (local->call_count < 2) {
- gf_log (this->name, GF_LOG_ERROR,
- "returning EIO as file found on onlyone node");
- STACK_UNWIND (frame, -1, EIO, fd);
- return 0;
- }
- }
-
-#ifdef GF_DARWIN_HOST_OS
- /* Handle symlink here */
- if (IA_ISLNK (loc->inode->ia_type)) {
- /* Callcount doesn't matter here */
- STACK_WIND (frame,
- unify_open_readlink_cbk,
- NS(this),
- NS(this)->fops->readlink,
- loc, PATH_MAX);
- return 0;
- }
-#endif /* GF_DARWIN_HOST_OS */
-
- local->call_count = 2;
- for (index = 0; file_list[index] != -1; index++) {
- char need_break = (file_list[index+1] == -1);
- STACK_WIND_COOKIE (frame,
- unify_open_cbk,
- priv->xl_array[file_list[index]], //cookie
- priv->xl_array[file_list[index]],
- priv->xl_array[file_list[index]]->fops->open,
- loc,
- flags,
- fd, wbflags);
- if (need_break)
- break;
- }
-
- return 0;
-}
-
-
-int32_t
-unify_create_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
- inode_t *inode = local->loc1.inode;
-
- unify_local_wipe (local);
-
- STACK_UNWIND (frame, local->op_ret, local->op_errno, local->fd,
- inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
-
- return 0;
-}
-
-/**
- * unify_create_open_cbk -
- */
-int32_t
-unify_create_open_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- fd_t *fd)
-{
- int ret = 0;
- int32_t callcnt = 0;
- unify_local_t *local = frame->local;
- inode_t *inode = NULL;
- xlator_t *child = NULL;
- uint64_t tmp_value = 0;
-
- LOCK (&frame->lock);
- {
- if (op_ret >= 0) {
- local->op_ret = op_ret;
- if (NS(this) != (xlator_t *)cookie) {
- /* Store child node's ptr, used in all
- the f*** / FileIO calls */
- /* TODO: log on failure */
- ret = fd_ctx_get (fd, this, &tmp_value);
- cookie = (void *)(long)tmp_value;
- } else {
- /* NOTE: open successful on namespace.
- * fd's ctx can be used to identify open
- * failure on storage subvolume. cool
- * ide ;) */
- local->failed = 0;
- }
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- ((xlator_t *)cookie)->name,
- local->loc1.path, strerror (op_errno));
- local->op_errno = op_errno;
- local->failed = 1;
- }
- callcnt = --local->call_count;
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- if (local->failed == 1 && (local->op_ret >= 0)) {
- local->call_count = 1;
- /* return -1 to user */
- local->op_ret = -1;
- local->op_errno = EIO;
- local->fd = fd;
- local->call_count = 1;
-
- if (!fd_ctx_get (local->fd, this, &tmp_value)) {
- child = (xlator_t *)(long)tmp_value;
-
- gf_log (this->name, GF_LOG_ERROR,
- "Create success on child node, "
- "failed on namespace");
-
- STACK_WIND (frame,
- unify_create_unlink_cbk,
- child,
- child->fops->unlink,
- &local->loc1);
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "Create success on namespace, "
- "failed on child node");
-
- STACK_WIND (frame,
- unify_create_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
- }
- return 0;
- }
- inode = local->loc1.inode;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno, fd,
- inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
- }
- return 0;
-}
-
-/**
- * unify_create_lookup_cbk -
- */
-int32_t
-unify_create_lookup_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- dict_t *dict,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- int16_t index = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- priv->xl_array[(long)cookie]->name,
- local->loc1.path, strerror (op_errno));
- local->op_errno = op_errno;
- local->failed = 1;
- }
-
- if (op_ret >= 0) {
- local->op_ret = op_ret;
- local->list[local->index++] = (int16_t)(long)cookie;
- if (NS(this) == priv->xl_array[(long)cookie]) {
- local->ia_ino = buf->ia_ino;
- } else {
- local->stbuf = *buf;
- }
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- int16_t *list = local->list;
- int16_t file_list[3] = {0,};
- local->op_ret = -1;
-
- local->list [local->index] = -1;
- file_list[0] = list[0];
- file_list[1] = list[1];
- file_list[2] = -1;
-
- local->stbuf.ia_ino = local->ia_ino;
- /* TODO: log on failure */
- inode_ctx_put (local->loc1.inode, this,
- (uint64_t)(long)local->list);
-
- if (local->index != 2) {
- /* Lookup failed, can't do open */
- gf_log (this->name, GF_LOG_ERROR,
- "%s: present on %d nodes",
- local->loc1.path, local->index);
- file_list[0] = priv->child_count;
- for (index = 0; list[index] != -1; index++) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: found on %s", local->loc1.path,
- priv->xl_array[list[index]]->name);
- if (list[index] != priv->child_count)
- file_list[1] = list[index];
- }
-
- if (local->index < 2) {
- unify_local_wipe (local);
- gf_log (this->name, GF_LOG_ERROR,
- "returning EIO as file found on "
- "only one node");
- STACK_UNWIND (frame, -1, EIO,
- local->fd, inode, NULL,
- NULL, NULL);
- return 0;
- }
- }
- /* Everything is perfect :) */
- local->call_count = 2;
-
- for (index = 0; file_list[index] != -1; index++) {
- char need_break = (file_list[index+1] == -1);
- STACK_WIND_COOKIE (frame,
- unify_create_open_cbk,
- priv->xl_array[file_list[index]],
- priv->xl_array[file_list[index]],
- priv->xl_array[file_list[index]]->fops->open,
- &local->loc1,
- local->flags,
- local->fd, 0);
- if (need_break)
- break;
- }
- }
-
- return 0;
-}
-
-
-/**
- * unify_create_cbk -
- */
-int32_t
-unify_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 iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int ret = 0;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
- inode_t *tmp_inode = NULL;
-
- if (op_ret == -1) {
- /* send unlink () on Namespace */
- local->op_errno = op_errno;
- local->op_ret = -1;
- local->call_count = 1;
- gf_log (this->name, GF_LOG_ERROR,
- "create failed on %s (file %s, error %s), "
- "sending unlink to namespace",
- prev_frame->this->name,
- local->loc1.path, strerror (op_errno));
-
- STACK_WIND (frame,
- unify_create_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
-
- return 0;
- }
-
- if (op_ret >= 0) {
- local->op_ret = op_ret;
- local->stbuf = *buf;
- /* Just inode number should be from NS node */
- local->stbuf.ia_ino = local->ia_ino;
-
- /* TODO: log on failure */
- ret = fd_ctx_set (fd, this, (uint64_t)(long)prev_frame->this);
- }
-
- tmp_inode = local->loc1.inode;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno, local->fd,
- tmp_inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
-
- return 0;
-}
-
-/**
- * unify_ns_create_cbk -
- *
- */
-int32_t
-unify_ns_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 iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- struct sched_ops *sched_ops = NULL;
- xlator_t *sched_xl = NULL;
- unify_local_t *local = frame->local;
- unify_private_t *priv = this->private;
- int16_t *list = NULL;
- int16_t index = 0;
-
- if (op_ret == -1) {
- /* No need to send create request to other servers, as
- namespace action failed. Handle exclusive create here. */
- if ((op_errno != EEXIST) ||
- ((op_errno == EEXIST) &&
- ((local->flags & O_EXCL) == O_EXCL))) {
- /* If its just a create call without O_EXCL,
- don't do this */
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s): %s",
- local->loc1.path, strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, fd, inode, buf,
- preparent, postparent);
- return 0;
- }
- }
-
- if (op_ret >= 0) {
- /* Get the inode number from the NS node */
- local->ia_ino = buf->ia_ino;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- local->op_ret = -1;
-
- /* Start the mapping list */
- list = GF_CALLOC (1, sizeof (int16_t) * 3,
- gf_unify_mt_int16_t);
- ERR_ABORT (list);
- inode_ctx_put (inode, this, (uint64_t)(long)list);
- list[0] = priv->child_count;
- list[2] = -1;
-
- /* This means, file doesn't exist anywhere in the Filesystem */
- sched_ops = priv->sched_ops;
-
- /* Send create request to the scheduled node now */
- sched_xl = sched_ops->schedule (this, local->loc1.path);
- if (sched_xl == NULL)
- {
- /* send unlink () on Namespace */
- local->op_errno = ENOTCONN;
- local->op_ret = -1;
- local->call_count = 1;
- gf_log (this->name, GF_LOG_ERROR,
- "no node online to schedule create:(file %s) "
- "sending unlink to namespace",
- (local->loc1.path)?local->loc1.path:"");
-
- STACK_WIND (frame,
- unify_create_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
-
- return 0;
- }
-
- for (index = 0; index < priv->child_count; index++)
- if (sched_xl == priv->xl_array[index])
- break;
- list[1] = index;
-
- STACK_WIND (frame, unify_create_cbk,
- sched_xl, sched_xl->fops->create,
- &local->loc1, local->flags, local->mode, fd);
- } else {
- /* File already exists, and there is no O_EXCL flag */
-
- gf_log (this->name, GF_LOG_DEBUG,
- "File(%s) already exists on namespace, sending "
- "open instead", local->loc1.path);
-
- local->list = GF_CALLOC (1, sizeof (int16_t) * 3,
- gf_unify_mt_int16_t);
- ERR_ABORT (local->list);
- local->call_count = priv->child_count + 1;
- local->op_ret = -1;
- for (index = 0; index <= priv->child_count; index++) {
- /* Send lookup() to all nodes including namespace */
- STACK_WIND_COOKIE (frame,
- unify_create_lookup_cbk,
- (void *)(long)index,
- priv->xl_array[index],
- priv->xl_array[index]->fops->lookup,
- &local->loc1,
- NULL);
- }
- }
- return 0;
-}
-
-/**
- * unify_create - create a file in global namespace first, so other
- * clients can see them. Create the file in storage nodes in background.
- */
-int32_t
-unify_create (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- int32_t flags,
- mode_t mode,
- fd_t *fd)
-{
- unify_local_t *local = NULL;
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- local->mode = mode;
- local->flags = flags;
- local->fd = fd;
-
- loc_copy (&local->loc1, loc);
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, fd, loc->inode, NULL,
- NULL, NULL);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_ns_create_cbk,
- NS(this),
- NS(this)->fops->create,
- loc,
- flags | O_EXCL,
- mode,
- fd);
-
- return 0;
-}
-
-
-/**
- * unify_opendir_cbk -
- */
-int32_t
-unify_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;
-}
-
-/**
- * unify_opendir -
- */
-int32_t
-unify_opendir (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- fd_t *fd)
-{
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- STACK_WIND (frame, unify_opendir_cbk,
- NS(this), NS(this)->fops->opendir, loc, fd);
-
- return 0;
-}
-
-
-int32_t
-unify_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *statpre,
- struct iatt *statpost)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s(): child(%s): path(%s): %s",
- gf_fop_list[frame->root->op],
- prev_frame->this->name,
- (local->loc1.path)?local->loc1.path:"",
- strerror (op_errno));
-
- local->op_errno = op_errno;
- if ((op_errno == ENOENT) && priv->optimist)
- local->op_ret = 0;
- }
-
- if (op_ret >= 0) {
- local->op_ret = 0;
-
- if (NS (this) == prev_frame->this) {
- local->ia_ino = statpost->ia_ino;
- /* If the entry is directory, get the stat
- from NS node */
- if (IA_ISDIR (statpost->ia_type) ||
- !local->stpost.ia_blksize) {
- local->stpre = *statpre;
- local->stpost = *statpost;
- }
- }
-
- if ((!IA_ISDIR (statpost->ia_type)) &&
- (NS (this) != prev_frame->this)) {
- /* If file, take the stat info from Storage
- node. */
- local->stpre = *statpre;
- local->stpost = *statpost;
- }
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- /* If the inode number is not filled, operation should
- fail */
- if (!local->ia_ino)
- local->op_ret = -1;
-
- local->stpre.ia_ino = local->ia_ino;
- local->stpost.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->stpre, &local->stpost);
- }
-
- return 0;
-}
-
-
-int32_t
-unify_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
- struct iatt *stbuf, int32_t valid)
-{
- unify_local_t *local = NULL;
- unify_private_t *priv = this->private;
- int32_t index = 0;
- int32_t callcnt = 0;
- uint64_t tmp_list = 0;
-
- if (!(loc && loc->inode)) {
- STACK_UNWIND (frame, -1, EINVAL, NULL, NULL);
- return 0;
- }
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
-
- if (IA_ISDIR (loc->inode->ia_type)) {
- local->call_count = 1;
-
- STACK_WIND (frame,
- unify_setattr_cbk,
- NS (this),
- NS (this)->fops->setattr,
- loc, stbuf, valid);
- } else {
- inode_ctx_get (loc->inode, this, &tmp_list);
- local->list = (int16_t *)(long)tmp_list;
-
- for (index = 0; local->list[index] != -1; index++) {
- local->call_count++;
- callcnt++;
- }
-
- for (index = 0; local->list[index] != -1; index++) {
- STACK_WIND (frame,
- unify_setattr_cbk,
- priv->xl_array[local->list[index]],
- priv->xl_array[local->list[index]]->fops->setattr,
- loc, stbuf, valid);
-
- if (!--callcnt)
- break;
- }
- }
-
- return 0;
-}
-
-
-int32_t
-unify_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd,
- struct iatt *stbuf, int32_t valid)
-{
- unify_local_t *local = NULL;
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR(fd);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
-
- if (!fd_ctx_get (fd, this, &tmp_child)) {
- /* If its set, then its file */
- child = (xlator_t *)(long)tmp_child;
-
- local->call_count = 2;
-
- STACK_WIND (frame, unify_setattr_cbk, child,
- child->fops->fsetattr, fd, stbuf, valid);
-
- STACK_WIND (frame, unify_setattr_cbk, NS(this),
- NS(this)->fops->fsetattr, fd, stbuf, valid);
- } else {
- local->call_count = 1;
-
- STACK_WIND (frame, unify_setattr_cbk,
- NS(this), NS(this)->fops->fsetattr,
- fd, stbuf, valid);
- }
-
- return 0;
-}
-
-
-/**
- * unify_truncate_cbk -
- */
-int32_t
-unify_truncate_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *prebuf,
- struct iatt *postbuf)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- prev_frame->this->name,
- (local->loc1.path)?local->loc1.path:"",
- strerror (op_errno));
- local->op_errno = op_errno;
- if (!((op_errno == ENOENT) && priv->optimist))
- local->op_ret = -1;
- }
-
- if (op_ret >= 0) {
- if (NS (this) == prev_frame->this) {
- local->ia_ino = postbuf->ia_ino;
- /* If the entry is directory, get the
- stat from NS node */
- if (IA_ISDIR (postbuf->ia_type) ||
- !local->stbuf.ia_blksize) {
- local->stbuf = *prebuf;
- local->poststbuf = *postbuf;
- }
- }
-
- if ((!IA_ISDIR (postbuf->ia_type)) &&
- (NS (this) != prev_frame->this)) {
- /* If file, take the stat info from
- Storage node. */
- local->stbuf = *prebuf;
- local->poststbuf = *postbuf;
- }
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- if (local->ia_ino) {
- local->stbuf.ia_ino = local->ia_ino;
- local->poststbuf.ia_ino = local->ia_ino;
- } else {
- local->op_ret = -1;
- }
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->stbuf, &local->poststbuf);
- }
-
- return 0;
-}
-
-
-/**
- * unify_truncate -
- */
-int32_t
-unify_truncate (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- off_t offset)
-{
- unify_local_t *local = NULL;
- unify_private_t *priv = this->private;
- int32_t index = 0;
- int32_t callcnt = 0;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
- local->ia_ino = loc->inode->ino;
-
- if (IA_ISDIR (loc->inode->ia_type)) {
- local->call_count = 1;
-
- STACK_WIND (frame,
- unify_truncate_cbk,
- NS(this),
- NS(this)->fops->truncate,
- loc,
- 0);
- } else {
- local->op_ret = 0;
- inode_ctx_get (loc->inode, this, &tmp_list);
- local->list = (int16_t *)(long)tmp_list;
-
- for (index = 0; local->list[index] != -1; index++) {
- local->call_count++;
- callcnt++;
- }
-
- /* Don't send offset to NS truncate */
- STACK_WIND (frame, unify_truncate_cbk, NS(this),
- NS(this)->fops->truncate, loc, 0);
- callcnt--;
-
- for (index = 0; local->list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[local->list[index]]) {
- STACK_WIND (frame,
- unify_truncate_cbk,
- priv->xl_array[local->list[index]],
- priv->xl_array[local->list[index]]->fops->truncate,
- loc,
- offset);
- if (!--callcnt)
- break;
- }
- }
- }
-
- return 0;
-}
-
-/**
- * unify_readlink_cbk -
- */
-int32_t
-unify_readlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- const char *path,
- struct iatt *sbuf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, path, sbuf);
- return 0;
-}
-
-/**
- * unify_readlink - Read the link only from the storage node.
- */
-int32_t
-unify_readlink (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- size_t size)
-{
- unify_private_t *priv = this->private;
- int32_t entry_count = 0;
- int16_t *list = NULL;
- int16_t index = 0;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++)
- entry_count++;
-
- if (entry_count >= 2) {
- for (index = 0; list[index] != -1; index++) {
- if (priv->xl_array[list[index]] != NS(this)) {
- STACK_WIND (frame,
- unify_readlink_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->readlink,
- loc,
- size);
- break;
- }
- }
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "returning ENOENT, no softlink files found "
- "on storage node");
- STACK_UNWIND (frame, -1, ENOENT, NULL);
- }
-
- return 0;
-}
-
-
-/**
- * unify_unlink_cbk -
- */
-int32_t
-unify_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if (op_ret == 0 || ((op_errno == ENOENT) && priv->optimist))
- local->op_ret = 0;
- if (op_ret == -1)
- local->op_errno = op_errno;
-
- if (((call_frame_t *)cookie)->this == NS(this)) {
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->oldpreparent, &local->oldpostparent);
- }
-
- return 0;
-}
-
-
-/**
- * unify_unlink -
- */
-int32_t
-unify_unlink (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = NULL;
- int16_t *list = NULL;
- int16_t index = 0;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
-
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++)
- local->call_count++;
-
- if (local->call_count) {
- for (index = 0; list[index] != -1; index++) {
- char need_break = (list[index+1] == -1);
- STACK_WIND (frame,
- unify_unlink_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->unlink,
- loc);
- if (need_break)
- break;
- }
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: returning ENOENT", loc->path);
- STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
- }
-
- return 0;
-}
-
-
-/**
- * unify_readv_cbk -
- */
-int32_t
-unify_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 iatt *stbuf,
- struct iobref *iobref)
-{
- STACK_UNWIND (frame, op_ret, op_errno, vector, count, stbuf, iobref);
- return 0;
-}
-
-/**
- * unify_readv -
- */
-int32_t
-unify_readv (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- size_t size,
- off_t offset)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame,
- unify_readv_cbk,
- child,
- child->fops->readv,
- fd,
- size,
- offset);
-
-
- return 0;
-}
-
-/**
- * unify_writev_cbk -
- */
-int32_t
-unify_writev_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *prebuf,
- struct iatt *postbuf)
-{
- unify_local_t *local = NULL;
-
- local = frame->local;
-
- local->stbuf = *prebuf;
- local->stbuf.ia_ino = local->ia_ino;
-
- local->poststbuf = *postbuf;
- local->poststbuf.ia_ino = local->ia_ino;
-
- STACK_UNWIND (frame, op_ret, op_errno,
- &local->stbuf, &local->poststbuf);
- return 0;
-}
-
-/**
- * unify_writev -
- */
-int32_t
-unify_writev (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- struct iovec *vector,
- int32_t count,
- off_t off,
- struct iobref *iobref)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
- unify_local_t *local = NULL;
-
- INIT_LOCAL (frame, local);
- local->ia_ino = fd->inode->ino;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame,
- unify_writev_cbk,
- child,
- child->fops->writev,
- fd,
- vector,
- count,
- off,
- iobref);
-
- return 0;
-}
-
-/**
- * unify_ftruncate -
- */
-int32_t
-unify_ftruncate (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- off_t offset)
-{
- xlator_t *child = NULL;
- unify_local_t *local = NULL;
- uint64_t tmp_child = 0;
-
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR(fd);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- local->op_ret = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- local->call_count = 2;
-
- STACK_WIND (frame, unify_truncate_cbk,
- child, child->fops->ftruncate,
- fd, offset);
-
- STACK_WIND (frame, unify_truncate_cbk,
- NS(this), NS(this)->fops->ftruncate,
- fd, 0);
-
- return 0;
-}
-
-
-/**
- * unify_flush_cbk -
- */
-int32_t
-unify_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;
-}
-
-/**
- * unify_flush -
- */
-int32_t
-unify_flush (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_flush_cbk, child,
- child->fops->flush, fd);
-
- return 0;
-}
-
-
-/**
- * unify_fsync_cbk -
- */
-int32_t
-unify_fsync_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *prebuf,
- struct iatt *postbuf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, prebuf, postbuf);
- return 0;
-}
-
-/**
- * unify_fsync -
- */
-int32_t
-unify_fsync (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- int32_t flags)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_fsync_cbk, child,
- child->fops->fsync, fd, flags);
-
- return 0;
-}
-
-/**
- * unify_fstat - Send fstat FOP to Namespace only if its directory, and to
- * both namespace and the storage node if its a file.
- */
-int32_t
-unify_fstat (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd)
-{
- unify_local_t *local = NULL;
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR(fd);
-
- INIT_LOCAL (frame, local);
- local->ia_ino = fd->inode->ino;
-
- if (!fd_ctx_get (fd, this, &tmp_child)) {
- /* If its set, then its file */
- child = (xlator_t *)(long)tmp_child;
- local->call_count = 2;
-
- STACK_WIND (frame, unify_buf_cbk, child,
- child->fops->fstat, fd);
-
- STACK_WIND (frame, unify_buf_cbk, NS(this),
- NS(this)->fops->fstat, fd);
-
- } else {
- /* this is an directory */
- local->call_count = 1;
- STACK_WIND (frame, unify_buf_cbk, NS(this),
- NS(this)->fops->fstat, fd);
- }
-
- return 0;
-}
-
-/**
- * unify_getdents_cbk -
- */
-int32_t
-unify_getdents_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- dir_entry_t *entry,
- int32_t count)
-{
- STACK_UNWIND (frame, op_ret, op_errno, entry, count);
- return 0;
-}
-
-/**
- * unify_getdents - send the FOP request to all the nodes.
- */
-int32_t
-unify_getdents (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- size_t size,
- off_t offset,
- int32_t flag)
-{
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR (fd);
-
- STACK_WIND (frame, unify_getdents_cbk, NS(this),
- NS(this)->fops->getdents, fd, size, offset, flag);
-
- return 0;
-}
-
-
-/**
- * unify_readdir_cbk -
- */
-int32_t
-unify_readdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- gf_dirent_t *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
-
- return 0;
-}
-
-/**
- * unify_readdir - send the FOP request to all the nodes.
- */
-int32_t
-unify_readdir (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- size_t size,
- off_t offset)
-{
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR (fd);
-
- STACK_WIND (frame, unify_readdir_cbk, NS(this),
- NS(this)->fops->readdir, fd, size, offset);
-
- return 0;
-}
-
-
-int32_t
-unify_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, gf_dirent_t *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
-
- return 0;
-}
-
-
-int32_t
-unify_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
- off_t offset)
-{
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR (fd);
-
- STACK_WIND (frame, unify_readdirp_cbk, NS(this),
- NS(this)->fops->readdirp, fd, size, offset);
-
- return 0;
-}
-
-
-/**
- * unify_fsyncdir_cbk -
- */
-int32_t
-unify_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;
-}
-
-/**
- * unify_fsyncdir -
- */
-int32_t
-unify_fsyncdir (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- int32_t flags)
-{
- UNIFY_CHECK_FD_AND_UNWIND_ON_ERR (fd);
-
- STACK_WIND (frame, unify_fsyncdir_cbk,
- NS(this), NS(this)->fops->fsyncdir, fd, flags);
-
- return 0;
-}
-
-/**
- * unify_lk_cbk - UNWIND frame with the proper return arguments.
- */
-int32_t
-unify_lk_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct gf_flock *lock)
-{
- STACK_UNWIND (frame, op_ret, op_errno, lock);
- return 0;
-}
-
-/**
- * unify_lk - Send it to all the storage nodes, (should be 1) which has file.
- */
-int32_t
-unify_lk (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- int32_t cmd,
- struct gf_flock *lock)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_lk_cbk, child,
- child->fops->lk, fd, cmd, lock);
-
- return 0;
-}
-
-
-int32_t
-unify_setxattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno);
-
-static int32_t
-unify_setxattr_file_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno)
-{
- unify_private_t *private = this->private;
- unify_local_t *local = frame->local;
- xlator_t *sched_xl = NULL;
- struct sched_ops *sched_ops = NULL;
-
- if (op_ret == -1) {
- if (!ENOTSUP)
- gf_log (this->name, GF_LOG_ERROR,
- "setxattr with XATTR_CREATE on ns: "
- "path(%s) key(%s): %s",
- local->loc1.path, local->name,
- strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno);
- return 0;
- }
-
- LOCK (&frame->lock);
- {
- local->failed = 0;
- local->op_ret = 0;
- local->op_errno = 0;
- local->call_count = 1;
- }
- UNLOCK (&frame->lock);
-
- /* schedule XATTR_CREATE on one of the child node */
- sched_ops = private->sched_ops;
-
- /* Send create request to the scheduled node now */
- sched_xl = sched_ops->schedule (this, local->name);
- if (!sched_xl) {
- STACK_UNWIND (frame, -1, ENOTCONN);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_setxattr_cbk,
- sched_xl,
- sched_xl->fops->setxattr,
- &local->loc1,
- local->dict,
- local->flags);
- return 0;
-}
-
-/**
- * unify_setxattr_cbk - When all the child nodes return, UNWIND frame.
- */
-int32_t
-unify_setxattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno)
-{
- int32_t callcnt = 0;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
- dict_t *dict = NULL;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- gf_log (this->name, (((op_errno == ENOENT) ||
- (op_errno == ENOTSUP))?
- GF_LOG_DEBUG : GF_LOG_ERROR),
- "child(%s): path(%s): %s",
- prev_frame->this->name,
- (local->loc1.path)?local->loc1.path:"",
- strerror (op_errno));
- if (local->failed == -1) {
- local->failed = 1;
- }
- local->op_errno = op_errno;
- } else {
- local->failed = 0;
- local->op_ret = op_ret;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- if (local->failed && local->name &&
- ZR_FILE_CONTENT_REQUEST(local->name)) {
- dict = get_new_dict ();
- dict_set (dict, local->dict->members_list->key,
- data_from_dynptr(NULL, 0));
- dict_ref (dict);
-
- local->call_count = 1;
-
- STACK_WIND (frame,
- unify_setxattr_file_cbk,
- NS(this),
- NS(this)->fops->setxattr,
- &local->loc1,
- dict,
- XATTR_CREATE);
-
- dict_unref (dict);
- return 0;
- }
-
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno);
- }
-
- return 0;
-}
-
-/**
- * unify_sexattr - This function should be sent to all the storage nodes,
- * which contains the file, (excluding namespace).
- */
-int32_t
-unify_setxattr (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- dict_t *dict,
- int32_t flags)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = NULL;
- int16_t *list = NULL;
- int16_t index = 0;
- int32_t call_count = 0;
- uint64_t tmp_list = 0;
- data_pair_t *trav = dict->members_list;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- local->failed = -1;
- loc_copy (&local->loc1, loc);
-
- if (IA_ISDIR (loc->inode->ia_type)) {
-
- if (trav && trav->key && ZR_FILE_CONTENT_REQUEST(trav->key)) {
- /* direct the storage xlators to change file
- content only if file exists */
- local->flags = flags;
- local->dict = dict;
- local->name = gf_strdup (trav->key);
- flags |= XATTR_REPLACE;
- }
-
- local->call_count = priv->child_count;
- for (index = 0; index < priv->child_count; index++) {
- STACK_WIND (frame,
- unify_setxattr_cbk,
- priv->xl_array[index],
- priv->xl_array[index]->fops->setxattr,
- loc, dict, flags);
- }
- return 0;
- }
-
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[list[index]]) {
- local->call_count++;
- call_count++;
- }
- }
-
- if (local->call_count) {
- for (index = 0; list[index] != -1; index++) {
- if (priv->xl_array[list[index]] != NS(this)) {
- STACK_WIND (frame,
- unify_setxattr_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->setxattr,
- loc,
- dict,
- flags);
- if (!--call_count)
- break;
- }
- }
- return 0;
- }
-
- /* No entry in storage nodes */
- gf_log (this->name, GF_LOG_DEBUG,
- "returning ENOENT, file not found on storage node.");
- STACK_UNWIND (frame, -1, ENOENT);
-
- return 0;
-}
-
-
-/**
- * unify_getxattr_cbk - This function is called from only one child, so, no
- * need of any lock or anything else, just send it to above layer
- */
-int32_t
-unify_getxattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- dict_t *value)
-{
- int32_t callcnt = 0;
- dict_t *local_value = NULL;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
-
- if (op_ret == -1) {
- local->op_errno = op_errno;
- gf_log (this->name,
- (((op_errno == ENOENT) ||
- (op_errno == ENODATA) ||
- (op_errno == ENOTSUP)) ?
- GF_LOG_DEBUG : GF_LOG_ERROR),
- "child(%s): path(%s): %s",
- prev_frame->this->name,
- (local->loc1.path)?local->loc1.path:"",
- strerror (op_errno));
- } else {
- if (!local->dict)
- local->dict = dict_ref (value);
- local->op_ret = op_ret;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- local_value = local->dict;
- local->dict = NULL;
-
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- local_value);
-
- if (local_value)
- dict_unref (local_value);
- }
-
- return 0;
-}
-
-
-/**
- * unify_getxattr - This FOP is sent to only the storage node.
- */
-int32_t
-unify_getxattr (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- const char *name)
-{
- unify_private_t *priv = this->private;
- int16_t *list = NULL;
- int16_t index = 0;
- int16_t count = 0;
- unify_local_t *local = NULL;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
- INIT_LOCAL (frame, local);
-
- if (IA_ISDIR (loc->inode->ia_type)) {
- local->call_count = priv->child_count;
- for (index = 0; index < priv->child_count; index++)
- STACK_WIND (frame,
- unify_getxattr_cbk,
- priv->xl_array[index],
- priv->xl_array[index]->fops->getxattr,
- loc,
- name);
- return 0;
- }
-
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[list[index]]) {
- local->call_count++;
- count++;
- }
- }
-
- if (count) {
- for (index = 0; list[index] != -1; index++) {
- if (priv->xl_array[list[index]] != NS(this)) {
- STACK_WIND (frame,
- unify_getxattr_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->getxattr,
- loc,
- name);
- if (!--count)
- break;
- }
- }
- } else {
- dict_t *tmp_dict = get_new_dict ();
- gf_log (this->name, GF_LOG_DEBUG,
- "%s: returning ENODATA, no file found on storage node",
- loc->path);
- STACK_UNWIND (frame, -1, ENODATA, tmp_dict);
- dict_destroy (tmp_dict);
- }
-
- return 0;
-}
-
-/**
- * unify_removexattr_cbk - Wait till all the child node returns the call
- * and then UNWIND to above layer.
- */
-int32_t
-unify_removexattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno)
-{
- int32_t callcnt = 0;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if (op_ret == -1) {
- local->op_errno = op_errno;
- if (op_errno != ENOTSUP)
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- prev_frame->this->name,
- local->loc1.path, strerror (op_errno));
- } else {
- local->op_ret = op_ret;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- STACK_UNWIND (frame, local->op_ret, local->op_errno);
- }
-
- return 0;
-}
-
-/**
- * unify_removexattr - Send it to all the child nodes which has the files.
- */
-int32_t
-unify_removexattr (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- const char *name)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = NULL;
- int16_t *list = NULL;
- int16_t index = 0;
- int32_t call_count = 0;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (loc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
-
- if (IA_ISDIR (loc->inode->ia_type)) {
- local->call_count = priv->child_count;
- for (index = 0; index < priv->child_count; index++)
- STACK_WIND (frame,
- unify_removexattr_cbk,
- priv->xl_array[index],
- priv->xl_array[index]->fops->removexattr,
- loc,
- name);
-
- return 0;
- }
-
- inode_ctx_get (loc->inode, this, &tmp_list);
- list = (int16_t *)(long)tmp_list;
-
- for (index = 0; list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[list[index]]) {
- local->call_count++;
- call_count++;
- }
- }
-
- if (local->call_count) {
- for (index = 0; list[index] != -1; index++) {
- if (priv->xl_array[list[index]] != NS(this)) {
- STACK_WIND (frame,
- unify_removexattr_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->removexattr,
- loc,
- name);
- if (!--call_count)
- break;
- }
- }
- return 0;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "%s: returning ENOENT, not found on storage node.", loc->path);
- STACK_UNWIND (frame, -1, ENOENT);
-
- return 0;
-}
-
-
-int32_t
-unify_mknod_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
-
- if (op_ret == -1)
- gf_log (this->name, GF_LOG_ERROR,
- "%s: %s", local->loc1.path, strerror (op_errno));
-
- unify_local_wipe (local);
- /* No log required here as this -1 is for mknod call */
- STACK_UNWIND (frame, -1, local->op_errno, NULL, NULL);
- return 0;
-}
-
-/**
- * unify_mknod_cbk -
- */
-int32_t
-unify_mknod_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "mknod failed on storage node, sending unlink to "
- "namespace");
- local->op_errno = op_errno;
- STACK_WIND (frame,
- unify_mknod_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
- return 0;
- }
-
- local->stbuf = *buf;
- local->stbuf.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
- return 0;
-}
-
-/**
- * unify_ns_mknod_cbk -
- */
-int32_t
-unify_ns_mknod_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- struct sched_ops *sched_ops = NULL;
- xlator_t *sched_xl = NULL;
- unify_local_t *local = frame->local;
- unify_private_t *priv = this->private;
- int16_t *list = NULL;
- int16_t index = 0;
- call_frame_t *prev_frame = cookie;
-
- if (op_ret == -1) {
- /* No need to send mknod request to other servers,
- * as namespace action failed
- */
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s): %s",
- prev_frame->this->name, local->loc1.path,
- strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, buf,
- preparent, postparent);
- return 0;
- }
-
- /* Create one inode for this entry */
- local->op_ret = 0;
- local->stbuf = *buf;
- local->ia_ino = buf->ia_ino;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- list = GF_CALLOC (1, sizeof (int16_t) * 3, gf_unify_mt_int16_t);
- ERR_ABORT (list);
- list[0] = priv->child_count;
- list[2] = -1;
- inode_ctx_put (inode, this, (uint64_t)(long)list);
-
- sched_ops = priv->sched_ops;
-
- /* Send mknod request to scheduled node now */
- sched_xl = sched_ops->schedule (this, local->loc1.path);
- if (!sched_xl) {
- gf_log (this->name, GF_LOG_ERROR,
- "mknod failed on storage node, no node online "
- "at the moment, sending unlink to NS");
- local->op_errno = ENOTCONN;
- STACK_WIND (frame,
- unify_mknod_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
-
- return 0;
- }
-
- for (index = 0; index < priv->child_count; index++)
- if (sched_xl == priv->xl_array[index])
- break;
- list[1] = index;
-
- STACK_WIND (frame, unify_mknod_cbk,
- sched_xl, sched_xl->fops->mknod,
- &local->loc1, local->mode, local->dev);
-
- return 0;
-}
-
-/**
- * unify_mknod - Create a device on namespace first, and later create on
- * the storage node.
- */
-int32_t
-unify_mknod (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- mode_t mode,
- dev_t rdev)
-{
- unify_local_t *local = NULL;
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- local->mode = mode;
- local->dev = rdev;
- loc_copy (&local->loc1, loc);
- if (local->loc1.path == NULL) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, loc->inode, NULL);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_ns_mknod_cbk,
- NS(this),
- NS(this)->fops->mknod,
- loc,
- mode,
- rdev);
-
- return 0;
-}
-
-int32_t
-unify_symlink_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
- if (op_ret == -1)
- gf_log (this->name, GF_LOG_ERROR,
- "%s: %s", local->loc1.path, strerror (op_errno));
-
- unify_local_wipe (local);
- STACK_UNWIND (frame, -1, local->op_errno, NULL, NULL);
- return 0;
-}
-
-/**
- * unify_symlink_cbk -
- */
-int32_t
-unify_symlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- /* Symlink on storage node failed, hence send unlink
- to the NS node */
- local->op_errno = op_errno;
- gf_log (this->name, GF_LOG_ERROR,
- "symlink on storage node failed, sending unlink "
- "to namespace");
-
- STACK_WIND (frame,
- unify_symlink_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
-
- return 0;
- }
-
- local->stbuf = *buf;
- local->stbuf.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
-
- return 0;
-}
-
-/**
- * unify_ns_symlink_cbk -
- */
-int32_t
-unify_ns_symlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
-
- struct sched_ops *sched_ops = NULL;
- xlator_t *sched_xl = NULL;
- int16_t *list = NULL;
- unify_local_t *local = frame->local;
- unify_private_t *priv = this->private;
- int16_t index = 0;
-
- if (op_ret == -1) {
- /* No need to send symlink request to other servers,
- * as namespace action failed
- */
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s): %s",
- local->loc1.path, strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, NULL, buf,
- preparent, postparent);
- return 0;
- }
-
- /* Create one inode for this entry */
- local->op_ret = 0;
- local->ia_ino = buf->ia_ino;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- /* Start the mapping list */
-
- list = GF_CALLOC (1, sizeof (int16_t) * 3, gf_unify_mt_int16_t);
- ERR_ABORT (list);
- list[0] = priv->child_count; //namespace's index
- list[2] = -1;
- inode_ctx_put (inode, this, (uint64_t)(long)list);
-
- sched_ops = priv->sched_ops;
-
- /* Send symlink request to all the nodes now */
- sched_xl = sched_ops->schedule (this, local->loc1.path);
- if (!sched_xl) {
- /* Symlink on storage node failed, hence send unlink
- to the NS node */
- local->op_errno = ENOTCONN;
- gf_log (this->name, GF_LOG_ERROR,
- "symlink on storage node failed, no node online, "
- "sending unlink to namespace");
-
- STACK_WIND (frame,
- unify_symlink_unlink_cbk,
- NS(this),
- NS(this)->fops->unlink,
- &local->loc1);
-
- return 0;
- }
-
- for (index = 0; index < priv->child_count; index++)
- if (sched_xl == priv->xl_array[index])
- break;
- list[1] = index;
-
- STACK_WIND (frame,
- unify_symlink_cbk,
- sched_xl,
- sched_xl->fops->symlink,
- local->name,
- &local->loc1);
-
- return 0;
-}
-
-/**
- * unify_symlink -
- */
-int32_t
-unify_symlink (call_frame_t *frame,
- xlator_t *this,
- const char *linkpath,
- loc_t *loc)
-{
- unify_local_t *local = NULL;
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, loc);
- local->name = gf_strdup (linkpath);
-
- if ((local->name == NULL) ||
- (local->loc1.path == NULL)) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, loc->inode, NULL);
- return 0;
- }
-
- STACK_WIND (frame,
- unify_ns_symlink_cbk,
- NS(this),
- NS(this)->fops->symlink,
- linkpath,
- loc);
-
- return 0;
-}
-
-
-int32_t
-unify_rename_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- int32_t callcnt = 0;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s -> %s): %s",
- prev_frame->this->name,
- local->loc1.path, local->loc2.path,
- strerror (op_errno));
-
- }
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- local->stbuf.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->stbuf);
- }
- return 0;
-}
-
-int32_t
-unify_ns_rename_undo_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *buf,
- struct iatt *preoldparent,
- struct iatt *postoldparent,
- struct iatt *prenewparent,
- struct iatt *postnewparent)
-{
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s -> %s): %s",
- local->loc1.path, local->loc2.path,
- strerror (op_errno));
- }
-
- local->stbuf.ia_ino = local->ia_ino;
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno, &local->stbuf);
- return 0;
-}
-
-int32_t
-unify_rename_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *buf,
- struct iatt *preoldparent,
- struct iatt *postoldparent,
- struct iatt *prenewparent,
- struct iatt *postnewparent)
-{
- int32_t index = 0;
- int32_t callcnt = 0;
- int16_t *list = NULL;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- call_frame_t *prev_frame = cookie;
-
- LOCK (&frame->lock);
- {
- callcnt = --local->call_count;
- if (op_ret >= 0) {
- if (!IA_ISDIR (buf->ia_type))
- local->stbuf = *buf;
- local->op_ret = op_ret;
- } else {
- gf_log (this->name, GF_LOG_ERROR,
- "child(%s): path(%s -> %s): %s",
- prev_frame->this->name,
- local->loc1.path, local->loc2.path,
- strerror (op_errno));
- local->op_errno = op_errno;
- }
- }
- UNLOCK (&frame->lock);
-
- if (!callcnt) {
- local->stbuf.ia_ino = local->ia_ino;
- if (IA_ISDIR (local->loc1.inode->ia_type)) {
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret, local->op_errno,
- &local->stbuf, &local->oldpreparent,
- &local->oldpostparent, &local->newpreparent,
- &local->newpostparent);
- return 0;
- }
-
- if (local->op_ret == -1) {
- /* TODO: check this logic */
-
- /* Rename failed in storage node, successful on NS,
- * hence, rename back the entries in NS */
- /* NOTE: this will be done only if the destination
- * doesn't exists, if the destination exists, the
- * job of correcting NS is left to self-heal
- */
- if (!local->index) {
- loc_t tmp_oldloc = {
- /* its actual 'newloc->path' */
- .path = local->loc2.path,
- .inode = local->loc1.inode,
- .parent = local->loc2.parent
- };
-
- loc_t tmp_newloc = {
- /* Actual 'oldloc->path' */
- .path = local->loc1.path,
- .parent = local->loc1.parent
- };
-
- gf_log (this->name, GF_LOG_ERROR,
- "rename succussful on namespace, on "
- "stroage node failed, reverting back");
-
- STACK_WIND (frame,
- unify_ns_rename_undo_cbk,
- NS(this),
- NS(this)->fops->rename,
- &tmp_oldloc,
- &tmp_newloc);
- return 0;
- }
- } else {
- /* Rename successful on storage nodes */
-
- int32_t idx = 0;
- int16_t *tmp_list = NULL;
- uint64_t tmp_list_int64 = 0;
- if (local->loc2.inode) {
- inode_ctx_get (local->loc2.inode,
- this, &tmp_list_int64);
- list = (int16_t *)(long)tmp_list_int64;
-
- }
-
- if (list) {
- for (index = 0; list[index] != -1; index++);
- tmp_list = GF_CALLOC (1, index * 2,
- gf_unify_mt_int16_t);
- memcpy (tmp_list, list, index * 2);
-
- for (index = 0; list[index] != -1; index++) {
- /* TODO: Check this logic. */
- /* If the destination file exists in
- * the same storage node where we sent
- * 'rename' call, no need to send
- * unlink
- */
- for (idx = 0;
- local->list[idx] != -1; idx++) {
- if (tmp_list[index] == local->list[idx]) {
- tmp_list[index] = priv->child_count;
- continue;
- }
- }
-
- if (NS(this) != priv->xl_array[tmp_list[index]]) {
- local->call_count++;
- callcnt++;
- }
- }
-
- if (local->call_count) {
- if (callcnt > 1)
- gf_log (this->name,
- GF_LOG_ERROR,
- "%s->%s: more (%d) "
- "subvolumes have the "
- "newloc entry",
- local->loc1.path,
- local->loc2.path,
- callcnt);
-
- for (index=0;
- tmp_list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[tmp_list[index]]) {
- STACK_WIND (frame,
- unify_rename_unlink_cbk,
- priv->xl_array[tmp_list[index]],
- priv->xl_array[tmp_list[index]]->fops->unlink,
- &local->loc2);
- if (!--callcnt)
- break;
- }
- }
-
- GF_FREE (tmp_list);
- return 0;
- }
- if (tmp_list)
- GF_FREE (tmp_list);
- }
- }
-
- /* Need not send 'unlink' to storage node */
- unify_local_wipe (local);
- STACK_UNWIND (frame, local->op_ret,
- local->op_errno, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent,
- &local->newpreparent, &local->newpostparent);
- }
-
- return 0;
-}
-
-int32_t
-unify_ns_rename_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct iatt *buf,
- struct iatt *preoldparent,
- struct iatt *postoldparent,
- struct iatt *prenewparent,
- struct iatt *postnewparent)
-{
- int32_t index = 0;
- int32_t callcnt = 0;
- int16_t *list = NULL;
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
-
- if (op_ret == -1) {
- /* Free local->new_inode */
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s -> %s): %s",
- local->loc1.path, local->loc2.path,
- strerror (op_errno));
-
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, buf,
- preoldparent, postoldparent,
- prenewparent, postnewparent);
- return 0;
- }
-
- local->stbuf = *buf;
- local->ia_ino = buf->ia_ino;
-
- local->oldpreparent = *preoldparent;
- local->oldpostparent = *postoldparent;
- local->newpreparent = *prenewparent;
- local->newpostparent = *postnewparent;
-
- /* Everything is fine. */
- if (IA_ISDIR (buf->ia_type)) {
- local->call_count = priv->child_count;
- for (index=0; index < priv->child_count; index++) {
- STACK_WIND (frame,
- unify_rename_cbk,
- priv->xl_array[index],
- priv->xl_array[index]->fops->rename,
- &local->loc1,
- &local->loc2);
- }
-
- return 0;
- }
-
- local->call_count = 0;
- /* send rename */
- list = local->list;
- for (index=0; list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[list[index]]) {
- local->call_count++;
- callcnt++;
- }
- }
-
- if (local->call_count) {
- for (index=0; list[index] != -1; index++) {
- if (NS(this) != priv->xl_array[list[index]]) {
- STACK_WIND (frame,
- unify_rename_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->rename,
- &local->loc1,
- &local->loc2);
- if (!--callcnt)
- break;
- }
- }
- } else {
- /* file doesn't seem to be present in storage nodes */
- gf_log (this->name, GF_LOG_CRITICAL,
- "CRITICAL: source file not in storage node, "
- "rename successful on namespace :O");
- unify_local_wipe (local);
- STACK_UNWIND (frame, -1, EIO, NULL,
- NULL, NULL, /* preoldparent, postoldparent */
- NULL, NULL); /* prenewparent, postnewparent */
- }
- return 0;
-}
-
-
-/**
- * unify_rename - One of the tricky function. The deadliest of all :O
- */
-int32_t
-unify_rename (call_frame_t *frame,
- xlator_t *this,
- loc_t *oldloc,
- loc_t *newloc)
-{
- unify_local_t *local = NULL;
- uint64_t tmp_list = 0;
-
- /* Initialization */
- INIT_LOCAL (frame, local);
- loc_copy (&local->loc1, oldloc);
- loc_copy (&local->loc2, newloc);
-
- if ((local->loc1.path == NULL) ||
- (local->loc2.path == NULL)) {
- gf_log (this->name, GF_LOG_CRITICAL, "Not enough memory :O");
- STACK_UNWIND (frame, -1, ENOMEM, NULL,
- NULL, NULL, /* preoldparent, postoldparent */
- NULL, NULL); /* prenewparent, postnewparent */
- return 0;
- }
-
- inode_ctx_get (oldloc->inode, this, &tmp_list);
- local->list = (int16_t *)(long)tmp_list;
-
- STACK_WIND (frame,
- unify_ns_rename_cbk,
- NS(this),
- NS(this)->fops->rename,
- oldloc,
- newloc);
- return 0;
-}
-
-/**
- * unify_link_cbk -
- */
-int32_t
-unify_link_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_local_t *local = frame->local;
-
- if (op_ret >= 0)
- local->stbuf = *buf;
- local->stbuf.ia_ino = local->ia_ino;
-
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, &local->stbuf,
- &local->oldpreparent, &local->oldpostparent);
-
- return 0;
-}
-
-/**
- * unify_ns_link_cbk -
- */
-int32_t
-unify_ns_link_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- inode_t *inode,
- struct iatt *buf,
- struct iatt *preparent,
- struct iatt *postparent)
-{
- unify_private_t *priv = this->private;
- unify_local_t *local = frame->local;
- int16_t *list = local->list;
- int16_t index = 0;
-
- if (op_ret == -1) {
- /* No need to send link request to other servers,
- * as namespace action failed
- */
- gf_log (this->name, GF_LOG_ERROR,
- "namespace: path(%s -> %s): %s",
- local->loc1.path, local->loc2.path,
- strerror (op_errno));
- unify_local_wipe (local);
- STACK_UNWIND (frame, op_ret, op_errno, inode, buf,
- preparent, postparent);
- return 0;
- }
-
- /* Update inode for this entry */
- local->op_ret = 0;
- local->ia_ino = buf->ia_ino;
-
- local->oldpreparent = *preparent;
- local->oldpostparent = *postparent;
-
- /* Send link request to the node now */
- for (index = 0; list[index] != -1; index++) {
- char need_break = (list[index+1] == -1);
- if (priv->xl_array[list[index]] != NS (this)) {
- STACK_WIND (frame,
- unify_link_cbk,
- priv->xl_array[list[index]],
- priv->xl_array[list[index]]->fops->link,
- &local->loc1,
- &local->loc2);
- break;
- }
- if (need_break)
- break;
- }
-
- return 0;
-}
-
-/**
- * unify_link -
- */
-int32_t
-unify_link (call_frame_t *frame,
- xlator_t *this,
- loc_t *oldloc,
- loc_t *newloc)
-{
- unify_local_t *local = NULL;
- uint64_t tmp_list = 0;
-
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (oldloc);
- UNIFY_CHECK_INODE_CTX_AND_UNWIND_ON_ERR (newloc);
-
- /* Initialization */
- INIT_LOCAL (frame, local);
-
- loc_copy (&local->loc1, oldloc);
- loc_copy (&local->loc2, newloc);
-
- inode_ctx_get (oldloc->inode, this, &tmp_list);
- local->list = (int16_t *)(long)tmp_list;
-
- STACK_WIND (frame,
- unify_ns_link_cbk,
- NS(this),
- NS(this)->fops->link,
- oldloc,
- newloc);
-
- return 0;
-}
-
-
-/**
- * unify_checksum_cbk -
- */
-int32_t
-unify_checksum_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- uint8_t *fchecksum,
- uint8_t *dchecksum)
-{
- STACK_UNWIND (frame, op_ret, op_errno, fchecksum, dchecksum);
-
- return 0;
-}
-
-/**
- * unify_checksum -
- */
-int32_t
-unify_checksum (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- int32_t flag)
-{
- STACK_WIND (frame,
- unify_checksum_cbk,
- NS(this),
- NS(this)->fops->checksum,
- loc,
- flag);
-
- return 0;
-}
-
-
-/**
- * unify_finodelk_cbk -
- */
-int
-unify_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;
-}
-
-/**
- * unify_finodelk
- */
-int
-unify_finodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, int cmd, struct gf_flock *flock)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_finodelk_cbk,
- child, child->fops->finodelk,
- volume, fd, cmd, flock);
-
- return 0;
-}
-
-
-
-/**
- * unify_fentrylk_cbk -
- */
-int
-unify_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;
-}
-
-/**
- * unify_fentrylk
- */
-int
-unify_fentrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, const char *basename,
- entrylk_cmd cmd, entrylk_type type)
-
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_fentrylk_cbk,
- child, child->fops->fentrylk,
- volume, fd, basename, cmd, type);
-
- return 0;
-}
-
-
-
-/**
- * unify_fxattrop_cbk -
- */
-int
-unify_fxattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xattr)
-{
- STACK_UNWIND (frame, op_ret, op_errno, xattr);
- return 0;
-}
-
-/**
- * unify_fxattrop
- */
-int
-unify_fxattrop (call_frame_t *frame, xlator_t *this,
- fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr)
-{
- UNIFY_CHECK_FD_CTX_AND_UNWIND_ON_ERR (fd);
- xlator_t *child = NULL;
- uint64_t tmp_child = 0;
-
- fd_ctx_get (fd, this, &tmp_child);
- child = (xlator_t *)(long)tmp_child;
-
- STACK_WIND (frame, unify_fxattrop_cbk,
- child, child->fops->fxattrop,
- fd, optype, xattr);
-
- return 0;
-}
-
-
-/**
- * unify_inodelk_cbk -
- */
-int
-unify_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;
-}
-
-
-/**
- * unify_inodelk
- */
-int
-unify_inodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, int cmd, struct gf_flock *flock)
-{
- xlator_t *child = NULL;
-
- child = unify_loc_subvol (loc, this);
-
- STACK_WIND (frame, unify_inodelk_cbk,
- child, child->fops->inodelk,
- volume, loc, cmd, flock);
-
- return 0;
-}
-
-
-
-/**
- * unify_entrylk_cbk -
- */
-int
-unify_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;
-}
-
-/**
- * unify_entrylk
- */
-int
-unify_entrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, const char *basename,
- entrylk_cmd cmd, entrylk_type type)
-
-{
- xlator_t *child = NULL;
-
- child = unify_loc_subvol (loc, this);
-
- STACK_WIND (frame, unify_entrylk_cbk,
- child, child->fops->entrylk,
- volume, loc, basename, cmd, type);
-
- return 0;
-}
-
-
-
-/**
- * unify_xattrop_cbk -
- */
-int
-unify_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xattr)
-{
- STACK_UNWIND (frame, op_ret, op_errno, xattr);
- return 0;
-}
-
-/**
- * unify_xattrop
- */
-int
-unify_xattrop (call_frame_t *frame, xlator_t *this,
- loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr)
-{
- xlator_t *child = NULL;
-
- child = unify_loc_subvol (loc, this);
-
- STACK_WIND (frame, unify_xattrop_cbk,
- child, child->fops->xattrop,
- loc, optype, xattr);
-
- return 0;
-}
-
-int
-unify_forget (xlator_t *this,
- inode_t *inode)
-{
- int16_t *list = NULL;
- uint64_t tmp_list = 0;
-
- if (inode->ia_type && (!IA_ISDIR(inode->ia_type))) {
- inode_ctx_get (inode, this, &tmp_list);
- if (tmp_list) {
- list = (int16_t *)(long)tmp_list;
- GF_FREE (list);
- }
- }
-
- return 0;
-}
-
-/**
- * notify
- */
-int32_t
-notify (xlator_t *this,
- int32_t event,
- void *data,
- ...)
-{
- unify_private_t *priv = this->private;
- struct sched_ops *sched = NULL;
-
- if (!priv) {
- return 0;
- }
-
- sched = priv->sched_ops;
- if (!sched) {
- gf_log (this->name, GF_LOG_CRITICAL, "No scheduler :O");
- raise (SIGTERM);
- return 0;
- }
- if (priv->namespace == data) {
- if (event == GF_EVENT_CHILD_UP) {
- sched->notify (this, event, data);
- }
- return 0;
- }
-
- switch (event)
- {
- case GF_EVENT_CHILD_UP:
- {
- /* Call scheduler's update () to enable it for scheduling */
- sched->notify (this, event, data);
-
- LOCK (&priv->lock);
- {
- /* Increment the inode's generation, which is
- used for self_heal */
- ++priv->inode_generation;
- ++priv->num_child_up;
- }
- UNLOCK (&priv->lock);
-
- if (!priv->is_up) {
- default_notify (this, event, data);
- priv->is_up = 1;
- }
- }
- break;
- case GF_EVENT_CHILD_DOWN:
- {
- /* Call scheduler's update () to disable the child node
- * for scheduling
- */
- sched->notify (this, event, data);
- LOCK (&priv->lock);
- {
- --priv->num_child_up;
- }
- UNLOCK (&priv->lock);
-
- if (priv->num_child_up == 0) {
- /* Send CHILD_DOWN to upper layer */
- default_notify (this, event, data);
- priv->is_up = 0;
- }
- }
- break;
-
- default:
- {
- default_notify (this, event, data);
- }
- break;
- }
-
- return 0;
-}
-
-int32_t
-mem_acct_init (xlator_t *this)
-{
- int ret = -1;
-
- if (!this)
- return ret;
-
- ret = xlator_mem_acct_init (this, gf_unify_mt_end + 1);
-
- if (ret != 0) {
- gf_log (this->name, GF_LOG_ERROR, "Memory accounting init"
- "failed");
- return ret;
- }
-
- return ret;
-}
-
-/**
- * init - This function is called first in the xlator, while initializing.
- * All the config file options are checked and appropriate flags are set.
- *
- * @this -
- */
-int32_t
-init (xlator_t *this)
-{
- int32_t ret = 0;
- int32_t count = 0;
- data_t *scheduler = NULL;
- data_t *data = NULL;
- xlator_t *ns_xl = NULL;
- xlator_list_t *trav = NULL;
- xlator_list_t *xlparent = NULL;
- xlator_list_t *parent = NULL;
- unify_private_t *_private = NULL;
-
-
- /* Check for number of child nodes, if there is no child nodes, exit */
- if (!this->children) {
- gf_log (this->name, GF_LOG_ERROR,
- "No child nodes specified. check \"subvolumes \" "
- "option in volfile");
- return -1;
- }
-
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "dangling volume. check volfile ");
- }
-
- /* Check for 'scheduler' in volume */
- scheduler = dict_get (this->options, "scheduler");
- if (!scheduler) {
- gf_log (this->name, GF_LOG_ERROR,
- "\"option scheduler <x>\" is missing in volfile");
- return -1;
- }
-
- /* Setting "option namespace <node>" */
- data = dict_get (this->options, "namespace");
- if(!data) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "namespace option not specified, Exiting");
- return -1;
- }
- /* Search namespace in the child node, if found, exit */
- trav = this->children;
- while (trav) {
- if (strcmp (trav->xlator->name, data->data) == 0)
- break;
- trav = trav->next;
- }
- if (trav) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "namespace node used as a subvolume, Exiting");
- return -1;
- }
-
- /* Search for the namespace node, if found, continue */
- ns_xl = this->next;
- while (ns_xl) {
- if (strcmp (ns_xl->name, data->data) == 0)
- break;
- ns_xl = ns_xl->next;
- }
- if (!ns_xl) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "namespace node not found in volfile, Exiting");
- return -1;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "namespace node specified as %s", data->data);
-
- _private = GF_CALLOC (1, sizeof (*_private),
- gf_unify_mt_unify_private_t);
- ERR_ABORT (_private);
- _private->sched_ops = get_scheduler (this, scheduler->data);
- if (!_private->sched_ops) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "Error while loading scheduler. Exiting");
- GF_FREE (_private);
- return -1;
- }
-
- if (ns_xl->parents) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "Namespace node should not be a child of any other node. Exiting");
- GF_FREE (_private);
- return -1;
- }
-
- _private->namespace = ns_xl;
-
- /* update _private structure */
- {
- count = 0;
- trav = this->children;
- /* Get the number of child count */
- while (trav) {
- count++;
- trav = trav->next;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Child node count is %d", count);
-
- _private->child_count = count;
- if (count == 1) {
- /* TODO: Should I error out here? */
- gf_log (this->name, GF_LOG_CRITICAL,
- "WARNING: You have defined only one "
- "\"subvolumes\" for unify volume. It may not "
- "be the desired config, review your volume "
- "volfile. If this is how you are testing it,"
- " you may hit some performance penalty");
- }
-
- _private->xl_array = GF_CALLOC (1,
- sizeof (xlator_t) * (count + 1),
- gf_unify_mt_xlator_t);
- ERR_ABORT (_private->xl_array);
-
- count = 0;
- trav = this->children;
- while (trav) {
- _private->xl_array[count++] = trav->xlator;
- trav = trav->next;
- }
- _private->xl_array[count] = _private->namespace;
-
- /* self-heal part, start with generation '1' */
- _private->inode_generation = 1;
- /* Because, Foreground part is tested well */
- _private->self_heal = ZR_UNIFY_FG_SELF_HEAL;
- data = dict_get (this->options, "self-heal");
- if (data) {
- if (strcasecmp (data->data, "off") == 0)
- _private->self_heal = ZR_UNIFY_SELF_HEAL_OFF;
-
- if (strcasecmp (data->data, "foreground") == 0)
- _private->self_heal = ZR_UNIFY_FG_SELF_HEAL;
-
- if (strcasecmp (data->data, "background") == 0)
- _private->self_heal = ZR_UNIFY_BG_SELF_HEAL;
- }
-
- /* optimist - ask bulde for more about it */
- data = dict_get (this->options, "optimist");
- if (data) {
- if (gf_string2boolean (data->data,
- &_private->optimist) == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "optimist excepts only boolean "
- "options");
- }
- }
-
- LOCK_INIT (&_private->lock);
- }
-
- /* Now that everything is fine. */
- this->private = (void *)_private;
- {
- ret = _private->sched_ops->mem_acct_init (this);
-
- if (ret == -1) {
- return -1;
- }
-
- /* Initialize scheduler, if everything else is successful */
- ret = _private->sched_ops->init (this);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "Initializing scheduler failed, Exiting");
- GF_FREE (_private);
- return -1;
- }
-
-
- ret = 0;
-
- /* This section is required because some fops may look
- * for 'xl->parent' variable
- */
- xlparent = GF_CALLOC (1, sizeof (*xlparent),
- gf_unify_mt_xlator_list_t);
- xlparent->xlator = this;
- if (!ns_xl->parents) {
- ns_xl->parents = xlparent;
- } else {
- parent = ns_xl->parents;
- while (parent->next)
- parent = parent->next;
- parent->next = xlparent;
- }
- }
-
- /* Tell namespace node that init is done */
- xlator_notify (ns_xl, GF_EVENT_PARENT_UP, this);
-
- return 0;
-}
-
-/**
- * fini - Free all the allocated memory
- */
-void
-fini (xlator_t *this)
-{
- unify_private_t *priv = this->private;
- priv->sched_ops->fini (this);
- this->private = NULL;
- LOCK_DESTROY (&priv->lock);
- GF_FREE (priv->xl_array);
- GF_FREE (priv);
- return;
-}
-
-
-struct xlator_fops fops = {
- .stat = unify_stat,
- .readlink = unify_readlink,
- .mknod = unify_mknod,
- .mkdir = unify_mkdir,
- .unlink = unify_unlink,
- .rmdir = unify_rmdir,
- .symlink = unify_symlink,
- .rename = unify_rename,
- .link = unify_link,
- .truncate = unify_truncate,
- .create = unify_create,
- .open = unify_open,
- .readv = unify_readv,
- .writev = unify_writev,
- .statfs = unify_statfs,
- .flush = unify_flush,
- .fsync = unify_fsync,
- .setxattr = unify_setxattr,
- .getxattr = unify_getxattr,
- .removexattr = unify_removexattr,
- .opendir = unify_opendir,
- .readdir = unify_readdir,
- .readdirp = unify_readdirp,
- .fsyncdir = unify_fsyncdir,
- .access = unify_access,
- .ftruncate = unify_ftruncate,
- .fstat = unify_fstat,
- .lk = unify_lk,
- .lookup = unify_lookup,
- .getdents = unify_getdents,
- .checksum = unify_checksum,
- .inodelk = unify_inodelk,
- .finodelk = unify_finodelk,
- .entrylk = unify_entrylk,
- .fentrylk = unify_fentrylk,
- .xattrop = unify_xattrop,
- .fxattrop = unify_fxattrop,
- .setattr = unify_setattr,
- .fsetattr = unify_fsetattr,
-};
-
-
-struct xlator_cbks cbks = {
- .forget = unify_forget,
-};
-
-struct volume_options options[] = {
- { .key = { "namespace" },
- .type = GF_OPTION_TYPE_XLATOR
- },
- { .key = { "scheduler" },
- .value = { "alu", "rr", "random", "nufa", "switch" },
- .type = GF_OPTION_TYPE_STR
- },
- { .key = {"self-heal"},
- .value = { "foreground", "background", "off" },
- .type = GF_OPTION_TYPE_STR
- },
- /* TODO: remove it some time later */
- { .key = {"optimist"},
- .type = GF_OPTION_TYPE_BOOL
- },
-
- { .key = {NULL} },
-};