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-rw-r--r--xlators/cluster/dht/src/switch.c812
1 files changed, 406 insertions, 406 deletions
diff --git a/xlators/cluster/dht/src/switch.c b/xlators/cluster/dht/src/switch.c
index 344a657897c..e48e369a4d4 100644
--- a/xlators/cluster/dht/src/switch.c
+++ b/xlators/cluster/dht/src/switch.c
@@ -1,20 +1,20 @@
/*
- Copyright (c) 2010 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 Affero 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
- Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
+ Copyright (c) 2010 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 Affero 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
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
*/
@@ -32,20 +32,20 @@
#include <string.h>
struct switch_sched_array {
- xlator_t *xl;
- int32_t eligible;
- int32_t considered;
+ xlator_t *xl;
+ int32_t eligible;
+ int32_t considered;
};
/* Select one of this struct based on the path's pattern match */
struct switch_struct {
- struct switch_struct *next;
+ struct switch_struct *next;
struct switch_sched_array *array;
- int32_t node_index; /* Index of the node in
+ int32_t node_index; /* Index of the node in
this pattern. */
- int32_t num_child; /* Total num of child nodes
+ int32_t num_child; /* Total num of child nodes
with this pattern. */
- char path_pattern[256];
+ char path_pattern[256];
};
/* TODO: all 'TODO's in dht.c holds good */
@@ -74,9 +74,9 @@ get_switch_matching_subvol (const char *path, dht_conf_t *conf,
xlator_t *hashed_subvol)
{
struct switch_struct *cond = NULL;
- struct switch_struct *trav = NULL;
- char *pathname = NULL;
- int idx = 0;
+ struct switch_struct *trav = NULL;
+ char *pathname = NULL;
+ int idx = 0;
cond = conf->private;
if (!cond)
@@ -84,9 +84,9 @@ get_switch_matching_subvol (const char *path, dht_conf_t *conf,
trav = cond;
pathname = gf_strdup (path);
- while (trav) {
- if (fnmatch (trav->path_pattern,
- pathname, FNM_NOESCAPE) == 0) {
+ while (trav) {
+ if (fnmatch (trav->path_pattern,
+ pathname, FNM_NOESCAPE) == 0) {
for (idx = 0; idx < trav->num_child; idx++) {
if (trav->array[idx].xl == hashed_subvol)
return hashed_subvol;
@@ -94,11 +94,11 @@ get_switch_matching_subvol (const char *path, dht_conf_t *conf,
idx = trav->node_index++;
trav->node_index %= trav->num_child;
return trav->array[idx].xl;
- }
- trav = trav->next;
- }
- GF_FREE (pathname);
- return hashed_subvol;
+ }
+ trav = trav->next;
+ }
+ GF_FREE (pathname);
+ return hashed_subvol;
}
@@ -116,7 +116,7 @@ switch_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
loc_t *loc = NULL;
int i = 0;
call_frame_t *prev = NULL;
- int call_cnt = 0;
+ int call_cnt = 0;
int ret = 0;
conf = this->private;
@@ -125,13 +125,13 @@ switch_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local = frame->local;
loc = &local->loc;
- if (ENTRY_MISSING (op_ret, op_errno)) {
- if (conf->search_unhashed) {
- local->op_errno = ENOENT;
- dht_lookup_everywhere (frame, this, loc);
- return 0;
- }
- }
+ if (ENTRY_MISSING (op_ret, op_errno)) {
+ if (conf->search_unhashed) {
+ local->op_errno = ENOENT;
+ dht_lookup_everywhere (frame, this, loc);
+ return 0;
+ }
+ }
if (op_ret == -1)
goto out;
@@ -142,40 +142,40 @@ switch_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if (!is_dir && !is_linkfile) {
/* non-directory and not a linkfile */
- dht_itransform (this, prev->this, stbuf->ia_ino,
- &stbuf->ia_ino);
+ dht_itransform (this, prev->this, stbuf->ia_ino,
+ &stbuf->ia_ino);
- ret = dht_layout_preset (this, prev->this, inode);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_DEBUG,
- "could not set pre-set layout for subvol %s",
- prev->this->name);
- op_ret = -1;
- op_errno = EINVAL;
- goto err;
- }
+ ret = dht_layout_preset (this, prev->this, inode);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "could not set pre-set layout for subvol %s",
+ prev->this->name);
+ op_ret = -1;
+ op_errno = EINVAL;
+ goto err;
+ }
goto out;
}
if (is_dir) {
call_cnt = conf->subvolume_cnt;
- local->call_cnt = call_cnt;
+ local->call_cnt = call_cnt;
local->inode = inode_ref (inode);
local->xattr = dict_ref (xattr);
- local->op_ret = 0;
- local->op_errno = 0;
+ local->op_ret = 0;
+ local->op_errno = 0;
- local->layout = dht_layout_new (this, conf->subvolume_cnt);
- if (!local->layout) {
- op_ret = -1;
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_DEBUG,
- "memory allocation failed :(");
- goto err;
- }
+ local->layout = dht_layout_new (this, conf->subvolume_cnt);
+ if (!local->layout) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_DEBUG,
+ "memory allocation failed :(");
+ goto err;
+ }
for (i = 0; i < call_cnt; i++) {
STACK_WIND (frame, dht_lookup_dir_cbk,
@@ -192,34 +192,34 @@ switch_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (this->name, GF_LOG_DEBUG,
"linkfile not having link subvolume. path=%s",
loc->path);
- dht_lookup_everywhere (frame, this, loc);
- return 0;
+ dht_lookup_everywhere (frame, this, loc);
+ return 0;
}
- STACK_WIND (frame, dht_lookup_linkfile_cbk,
- subvol, subvol->fops->lookup,
- &local->loc, local->xattr_req);
+ STACK_WIND (frame, dht_lookup_linkfile_cbk,
+ subvol, subvol->fops->lookup,
+ &local->loc, local->xattr_req);
}
return 0;
out:
- if (!local->hashed_subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- local->loc.path);
+ if (!local->hashed_subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ local->loc.path);
local->op_errno = ENOENT;
dht_lookup_everywhere (frame, this, loc);
return 0;
- }
+ }
- STACK_WIND (frame, dht_lookup_cbk,
- local->hashed_subvol, local->hashed_subvol->fops->lookup,
- &local->loc, local->xattr_req);
+ STACK_WIND (frame, dht_lookup_cbk,
+ local->hashed_subvol, local->hashed_subvol->fops->lookup,
+ &local->loc, local->xattr_req);
- return 0;
+ return 0;
- err:
+err:
DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno,
inode, stbuf, xattr, NULL);
return 0;
@@ -227,18 +227,18 @@ out:
int
switch_lookup (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xattr_req)
+ loc_t *loc, dict_t *xattr_req)
{
xlator_t *hashed_subvol = NULL;
xlator_t *cached_subvol = NULL;
xlator_t *subvol = NULL;
dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
+ dht_conf_t *conf = NULL;
int ret = -1;
int op_errno = -1;
- dht_layout_t *layout = NULL;
- int i = 0;
- int call_cnt = 0;
+ dht_layout_t *layout = NULL;
+ int i = 0;
+ int call_cnt = 0;
VALIDATE_OR_GOTO (frame, err);
@@ -247,15 +247,15 @@ switch_lookup (call_frame_t *frame, xlator_t *this,
VALIDATE_OR_GOTO (loc->inode, err);
VALIDATE_OR_GOTO (loc->path, err);
- conf = this->private;
+ conf = this->private;
local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
+ if (!local) {
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ goto err;
+ }
ret = loc_dup (loc, &local->loc);
if (ret == -1) {
@@ -266,20 +266,20 @@ switch_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- if (xattr_req) {
- local->xattr_req = dict_ref (xattr_req);
- } else {
- local->xattr_req = dict_new ();
- }
+ if (xattr_req) {
+ local->xattr_req = dict_ref (xattr_req);
+ } else {
+ local->xattr_req = dict_new ();
+ }
- hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
- cached_subvol = dht_subvol_get_cached (this, local->loc.inode);
+ hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
+ cached_subvol = dht_subvol_get_cached (this, local->loc.inode);
- local->cached_subvol = cached_subvol;
- local->hashed_subvol = hashed_subvol;
+ local->cached_subvol = cached_subvol;
+ local->hashed_subvol = hashed_subvol;
if (is_revalidate (loc)) {
- local->layout = layout = dht_layout_get (this, loc->inode);
+ local->layout = layout = dht_layout_get (this, loc->inode);
if (!layout) {
gf_log (this->name, GF_LOG_DEBUG,
@@ -289,83 +289,83 @@ switch_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- if (layout->gen && (layout->gen < conf->gen)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "incomplete layout failure for path=%s",
- loc->path);
+ if (layout->gen && (layout->gen < conf->gen)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "incomplete layout failure for path=%s",
+ loc->path);
dht_layout_unref (this, local->layout);
- goto do_fresh_lookup;
- }
+ goto do_fresh_lookup;
+ }
- local->inode = inode_ref (loc->inode);
- local->ia_ino = loc->inode->ino;
+ local->inode = inode_ref (loc->inode);
+ local->ia_ino = loc->inode->ino;
- local->call_cnt = layout->cnt;
- call_cnt = local->call_cnt;
+ local->call_cnt = layout->cnt;
+ call_cnt = local->call_cnt;
- /* NOTE: we don't require 'trusted.glusterfs.dht.linkto'
+ /* NOTE: we don't require 'trusted.glusterfs.dht.linkto'
* attribute, revalidates directly go to the cached-subvolume.
- */
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht", 4 * 4);
+ */
+ ret = dict_set_uint32 (local->xattr_req,
+ "trusted.glusterfs.dht", 4 * 4);
if (ret < 0)
gf_log (this->name, GF_LOG_WARNING,
"failed to set dict value for "
"trusted.glusterfs.dht");
- for (i = 0; i < layout->cnt; i++) {
- subvol = layout->list[i].xlator;
+ for (i = 0; i < layout->cnt; i++) {
+ subvol = layout->list[i].xlator;
- STACK_WIND (frame, dht_revalidate_cbk,
- subvol, subvol->fops->lookup,
- loc, local->xattr_req);
+ STACK_WIND (frame, dht_revalidate_cbk,
+ subvol, subvol->fops->lookup,
+ loc, local->xattr_req);
- if (!--call_cnt)
- break;
- }
- } else {
+ if (!--call_cnt)
+ break;
+ }
+ } else {
do_fresh_lookup:
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht", 4 * 4);
+ ret = dict_set_uint32 (local->xattr_req,
+ "trusted.glusterfs.dht", 4 * 4);
if (ret < 0)
gf_log (this->name, GF_LOG_WARNING,
"failed to set dict value for "
"trusted.glusterfs.dht");
-
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht.linkto", 256);
+
+ ret = dict_set_uint32 (local->xattr_req,
+ "trusted.glusterfs.dht.linkto", 256);
if (ret < 0)
- gf_log (this->name, GF_LOG_WARNING,
- "failed to set dict value for "
+ gf_log (this->name, GF_LOG_WARNING,
+ "failed to set dict value for "
"trusted.glusterfs.dht.linkto");
if (!hashed_subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s, "
- "checking on all the subvols to see if "
- "it is a directory", loc->path);
- call_cnt = conf->subvolume_cnt;
- local->call_cnt = call_cnt;
-
- local->layout = dht_layout_new (this,
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s, "
+ "checking on all the subvols to see if "
+ "it is a directory", loc->path);
+ call_cnt = conf->subvolume_cnt;
+ local->call_cnt = call_cnt;
+
+ local->layout = dht_layout_new (this,
conf->subvolume_cnt);
- if (!local->layout) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- for (i = 0; i < call_cnt; i++) {
- STACK_WIND (frame, dht_lookup_dir_cbk,
- conf->subvolumes[i],
- conf->subvolumes[i]->fops->lookup,
- &local->loc, local->xattr_req);
- }
- return 0;
+ if (!local->layout) {
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ goto err;
+ }
+
+ for (i = 0; i < call_cnt; i++) {
+ STACK_WIND (frame, dht_lookup_dir_cbk,
+ conf->subvolumes[i],
+ conf->subvolumes[i]->fops->lookup,
+ &local->loc, local->xattr_req);
+ }
+ return 0;
}
- /* */
+ /* */
cached_subvol = get_switch_matching_subvol (loc->path, conf,
hashed_subvol);
if (cached_subvol == hashed_subvol) {
@@ -384,36 +384,36 @@ switch_lookup (call_frame_t *frame, xlator_t *this,
return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
+ op_errno = (op_errno == -1) ? errno : op_errno;
DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
int
switch_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int op_ret, int op_errno,
- inode_t *inode, struct iatt *stbuf,
- struct iatt *preparent,
- struct iatt *postparent)
+ xlator_t *this, int op_ret, int op_errno,
+ inode_t *inode, struct iatt *stbuf,
+ struct iatt *preparent,
+ struct iatt *postparent)
{
- dht_local_t *local = NULL;
+ dht_local_t *local = NULL;
- local = frame->local;
+ local = frame->local;
- if (op_ret == -1)
- goto err;
+ if (op_ret == -1)
+ goto err;
- STACK_WIND (frame, dht_create_cbk,
- local->cached_subvol, local->cached_subvol->fops->create,
- &local->loc, local->flags, local->mode, local->fd,
+ STACK_WIND (frame, dht_create_cbk,
+ local->cached_subvol, local->cached_subvol->fops->create,
+ &local->loc, local->flags, local->mode, local->fd,
local->params);
- return 0;
+ return 0;
- err:
- DHT_STACK_UNWIND (create, frame, -1, op_errno,
+err:
+ DHT_STACK_UNWIND (create, frame, -1, op_errno,
NULL, NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
int
@@ -421,37 +421,37 @@ switch_create (call_frame_t *frame, xlator_t *this,
loc_t *loc, int32_t flags, mode_t mode,
fd_t *fd, dict_t *params)
{
- dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
- xlator_t *subvol = NULL;
+ dht_local_t *local = NULL;
+ dht_conf_t *conf = NULL;
+ xlator_t *subvol = NULL;
xlator_t *avail_subvol = NULL;
- int op_errno = -1;
- int ret = -1;
+ int op_errno = -1;
+ int ret = -1;
- VALIDATE_OR_GOTO (frame, err);
- VALIDATE_OR_GOTO (this, err);
- VALIDATE_OR_GOTO (loc, err);
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (loc, err);
- conf = this->private;
+ conf = this->private;
dht_get_du_info (frame, this, loc);
local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- subvol = dht_subvol_get_hashed (this, loc);
- if (!subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- loc->path);
- op_errno = ENOENT;
- goto err;
- }
+ if (!local) {
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ goto err;
+ }
+
+ subvol = dht_subvol_get_hashed (this, loc);
+ if (!subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ loc->path);
+ op_errno = ENOENT;
+ goto err;
+ }
avail_subvol = get_switch_matching_subvol (loc->path, conf, subvol);
if (dht_is_subvol_filled (this, avail_subvol)) {
@@ -463,10 +463,10 @@ switch_create (call_frame_t *frame, xlator_t *this,
/* create a link file instead of actual file */
ret = loc_copy (&local->loc, loc);
if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- op_errno = ENOMEM;
- goto err;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ op_errno = ENOMEM;
+ goto err;
}
local->fd = fd_ref (fd);
@@ -490,36 +490,36 @@ switch_create (call_frame_t *frame, xlator_t *this,
return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
- DHT_STACK_UNWIND (create, frame, -1, op_errno,
+ op_errno = (op_errno == -1) ? errno : op_errno;
+ DHT_STACK_UNWIND (create, frame, -1, op_errno,
NULL, NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
int
switch_mknod_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int op_ret, int op_errno, inode_t *inode,
- struct iatt *stbuf, struct iatt *preparent,
- struct iatt *postparent)
+ int op_ret, int op_errno, inode_t *inode,
+ struct iatt *stbuf, struct iatt *preparent,
+ struct iatt *postparent)
{
- dht_local_t *local = NULL;
+ dht_local_t *local = NULL;
- local = frame->local;
+ local = frame->local;
- if (op_ret >= 0) {
- STACK_WIND (frame, dht_newfile_cbk,
- local->cached_subvol,
- local->cached_subvol->fops->mknod,
- &local->loc, local->mode, local->rdev,
+ if (op_ret >= 0) {
+ STACK_WIND (frame, dht_newfile_cbk,
+ local->cached_subvol,
+ local->cached_subvol->fops->mknod,
+ &local->loc, local->mode, local->rdev,
local->params);
- return 0;
- }
+ return 0;
+ }
- DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
+ DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
inode, stbuf, preparent, postparent);
- return 0;
+ return 0;
}
@@ -527,37 +527,37 @@ int
switch_mknod (call_frame_t *frame, xlator_t *this,
loc_t *loc, mode_t mode, dev_t rdev, dict_t *params)
{
- dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
- xlator_t *subvol = NULL;
+ dht_local_t *local = NULL;
+ dht_conf_t *conf = NULL;
+ xlator_t *subvol = NULL;
xlator_t *avail_subvol = NULL;
- int op_errno = -1;
- int ret = -1;
+ int op_errno = -1;
+ int ret = -1;
- VALIDATE_OR_GOTO (frame, err);
- VALIDATE_OR_GOTO (this, err);
- VALIDATE_OR_GOTO (loc, err);
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (loc, err);
- conf = this->private;
+ conf = this->private;
dht_get_du_info (frame, this, loc);
local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- subvol = dht_subvol_get_hashed (this, loc);
- if (!subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- loc->path);
- op_errno = ENOENT;
- goto err;
- }
+ if (!local) {
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ goto err;
+ }
+
+ subvol = dht_subvol_get_hashed (this, loc);
+ if (!subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ loc->path);
+ op_errno = ENOENT;
+ goto err;
+ }
/* Consider the disksize in consideration */
avail_subvol = get_switch_matching_subvol (loc->path, conf, subvol);
@@ -566,52 +566,52 @@ switch_mknod (call_frame_t *frame, xlator_t *this,
dht_free_disk_available_subvol (this, avail_subvol);
}
- if (avail_subvol != subvol) {
- /* Create linkfile first */
- ret = loc_copy (&local->loc, loc);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- op_errno = ENOMEM;
- goto err;
- }
+ if (avail_subvol != subvol) {
+ /* Create linkfile first */
+ ret = loc_copy (&local->loc, loc);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Out of memory");
+ op_errno = ENOMEM;
+ goto err;
+ }
local->params = dict_ref (params);
- local->mode = mode;
- local->rdev = rdev;
- local->cached_subvol = avail_subvol;
+ local->mode = mode;
+ local->rdev = rdev;
+ local->cached_subvol = avail_subvol;
- dht_linkfile_create (frame, switch_mknod_linkfile_cbk,
+ dht_linkfile_create (frame, switch_mknod_linkfile_cbk,
avail_subvol, subvol, loc);
- return 0;
- }
+ return 0;
+ }
- gf_log (this->name, GF_LOG_TRACE,
- "creating %s on %s", loc->path, subvol->name);
+ gf_log (this->name, GF_LOG_TRACE,
+ "creating %s on %s", loc->path, subvol->name);
- STACK_WIND (frame, dht_newfile_cbk,
- subvol, subvol->fops->mknod,
- loc, mode, rdev, params);
+ STACK_WIND (frame, dht_newfile_cbk,
+ subvol, subvol->fops->mknod,
+ loc, mode, rdev, params);
- return 0;
+ return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
- DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
+ op_errno = (op_errno == -1) ? errno : op_errno;
+ DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
int
notify (xlator_t *this, int event, void *data, ...)
{
- int ret = -1;
+ int ret = -1;
- ret = dht_notify (this, event, data);
+ ret = dht_notify (this, event, data);
- return ret;
+ return ret;
}
void
@@ -622,7 +622,7 @@ fini (xlator_t *this)
struct switch_struct *trav = NULL;
struct switch_struct *prev = NULL;
- conf = this->private;
+ conf = this->private;
if (conf) {
trav = (struct switch_struct *)conf->private;
@@ -648,13 +648,13 @@ fini (xlator_t *this)
if (conf->subvolumes)
GF_FREE (conf->subvolumes);
- if (conf->subvolume_status)
- GF_FREE (conf->subvolume_status);
+ if (conf->subvolume_status)
+ GF_FREE (conf->subvolume_status);
GF_FREE (conf);
}
- return;
+ return;
}
int
@@ -679,32 +679,32 @@ set_switch_pattern (xlator_t *this, dht_conf_t *conf,
struct switch_struct *switch_buf = NULL;
struct switch_struct *switch_opt = NULL;
struct switch_struct *trav = NULL;
- struct switch_sched_array *switch_buf_array = NULL;
- xlator_list_t *trav_xl = NULL;
+ struct switch_sched_array *switch_buf_array = NULL;
+ xlator_list_t *trav_xl = NULL;
trav_xl = this->children;
- while (trav_xl) {
- index++;
- trav_xl = trav_xl->next;
- }
- child_count = index;
- switch_buf_array = GF_CALLOC ((index + 1),
+ while (trav_xl) {
+ index++;
+ trav_xl = trav_xl->next;
+ }
+ child_count = index;
+ switch_buf_array = GF_CALLOC ((index + 1),
sizeof (struct switch_sched_array),
gf_switch_mt_switch_sched_array);
if (!switch_buf_array)
goto err;
- trav_xl = this->children;
- index = 0;
+ trav_xl = this->children;
+ index = 0;
- while (trav_xl) {
- switch_buf_array[index].xl = trav_xl->xlator;
- switch_buf_array[index].eligible = 1;
- trav_xl = trav_xl->next;
- index++;
- }
+ while (trav_xl) {
+ switch_buf_array[index].xl = trav_xl->xlator;
+ switch_buf_array[index].eligible = 1;
+ trav_xl = trav_xl->next;
+ index++;
+ }
- /* *jpg:child1,child2;*mpg:child3;*:child4,child5,child6 */
+ /* *jpg:child1,child2;*mpg:child3;*:child4,child5,child6 */
/* Get the pattern for considering switch case.
"option block-size *avi:10MB" etc */
@@ -749,7 +749,7 @@ set_switch_pattern (xlator_t *this, dht_conf_t *conf,
child = strtok_r (childs, ",", &tmp1);
switch_opt->num_child = idx;
switch_opt->array = GF_CALLOC (1, (idx *
- sizeof (struct switch_sched_array)),
+ sizeof (struct switch_sched_array)),
gf_switch_mt_switch_sched_array);
if (!switch_opt->array)
goto err;
@@ -785,7 +785,7 @@ set_switch_pattern (xlator_t *this, dht_conf_t *conf,
goto err;
}
GF_FREE (dup_str);
-
+
/* Link it to the main structure */
if (switch_buf) {
/* there are already few entries */
@@ -800,60 +800,60 @@ set_switch_pattern (xlator_t *this, dht_conf_t *conf,
switch_str = strtok_r (NULL, ";", &tmp_str);
}
- /* Now, all the pattern based considerations done, so for all the
- * remaining pattern, '*' to all the remaining child nodes
- */
- {
- for (index=0; index < child_count; index++) {
- /* check for considered flag */
- if (switch_buf_array[index].considered)
- continue;
- flag++;
- }
- if (!flag) {
- gf_log ("switch", GF_LOG_ERROR,
- "No nodes left for pattern '*'. Exiting");
- goto err;
- }
- switch_opt = GF_CALLOC (1, sizeof (struct switch_struct),
+ /* Now, all the pattern based considerations done, so for all the
+ * remaining pattern, '*' to all the remaining child nodes
+ */
+ {
+ for (index=0; index < child_count; index++) {
+ /* check for considered flag */
+ if (switch_buf_array[index].considered)
+ continue;
+ flag++;
+ }
+ if (!flag) {
+ gf_log ("switch", GF_LOG_ERROR,
+ "No nodes left for pattern '*'. Exiting");
+ goto err;
+ }
+ switch_opt = GF_CALLOC (1, sizeof (struct switch_struct),
gf_switch_mt_switch_struct);
if (!switch_opt)
goto err;
- /* Add the '*' pattern to the array */
- memcpy (switch_opt->path_pattern, "*", 2);
- switch_opt->num_child = flag;
- switch_opt->array =
- GF_CALLOC (1,
+ /* Add the '*' pattern to the array */
+ memcpy (switch_opt->path_pattern, "*", 2);
+ switch_opt->num_child = flag;
+ switch_opt->array =
+ GF_CALLOC (1,
flag * sizeof (struct switch_sched_array),
gf_switch_mt_switch_sched_array);
if (!switch_opt->array)
goto err;
- flag = 0;
- for (index=0; index < child_count; index++) {
- /* check for considered flag */
- if (switch_buf_array[index].considered)
- continue;
- gf_log ("switch", GF_LOG_DEBUG,
- "'%s' pattern will be scheduled to \"%s\"",
- switch_opt->path_pattern,
- switch_buf_array[index].xl->name);
- switch_opt->array[flag].xl =
- switch_buf_array[index].xl;
- switch_buf_array[index].considered = 1;
- flag++;
+ flag = 0;
+ for (index=0; index < child_count; index++) {
+ /* check for considered flag */
+ if (switch_buf_array[index].considered)
+ continue;
+ gf_log ("switch", GF_LOG_DEBUG,
+ "'%s' pattern will be scheduled to \"%s\"",
+ switch_opt->path_pattern,
+ switch_buf_array[index].xl->name);
+ switch_opt->array[flag].xl =
+ switch_buf_array[index].xl;
+ switch_buf_array[index].considered = 1;
+ flag++;
+ }
+ if (switch_buf) {
+ /* there are already few entries */
+ trav = switch_buf;
+ while (trav->next)
+ trav = trav->next;
+ trav->next = switch_opt;
+ } else {
+ /* First entry */
+ switch_buf = switch_opt;
}
- if (switch_buf) {
- /* there are already few entries */
- trav = switch_buf;
- while (trav->next)
- trav = trav->next;
- trav->next = switch_opt;
- } else {
- /* First entry */
- switch_buf = switch_opt;
- }
- }
+ }
/* */
conf->private = switch_buf;
@@ -879,22 +879,22 @@ int
init (xlator_t *this)
{
dht_conf_t *conf = NULL;
- data_t *data = NULL;
- char *temp_str = NULL;
+ data_t *data = NULL;
+ char *temp_str = NULL;
int ret = -1;
int i = 0;
- uint32_t temp_free_disk = 0;
+ uint32_t temp_free_disk = 0;
- if (!this->children) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "SWITCH needs more than one subvolume");
- return -1;
- }
+ if (!this->children) {
+ gf_log (this->name, GF_LOG_CRITICAL,
+ "SWITCH needs more than one subvolume");
+ return -1;
+ }
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "dangling volume. check volfile");
- }
+ if (!this->parents) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "dangling volume. check volfile");
+ }
conf = GF_CALLOC (1, sizeof (*conf), gf_switch_mt_dht_conf_t);
if (!conf) {
@@ -904,19 +904,19 @@ init (xlator_t *this)
}
conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_ON;
- if (dict_get_str (this->options, "lookup-unhashed", &temp_str) == 0) {
+ if (dict_get_str (this->options, "lookup-unhashed", &temp_str) == 0) {
/* If option is not "auto", other options _should_ be boolean */
if (strcasecmp (temp_str, "auto"))
gf_string2boolean (temp_str, &conf->search_unhashed);
else
conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
- }
+ }
- conf->unhashed_sticky_bit = 0;
- if (dict_get_str (this->options, "unhashed-sticky-bit",
+ conf->unhashed_sticky_bit = 0;
+ if (dict_get_str (this->options, "unhashed-sticky-bit",
&temp_str) == 0) {
- gf_string2boolean (temp_str, &conf->unhashed_sticky_bit);
- }
+ gf_string2boolean (temp_str, &conf->unhashed_sticky_bit);
+ }
conf->min_free_disk = 10;
conf->disk_unit = 'p';
@@ -927,7 +927,7 @@ init (xlator_t *this)
&temp_free_disk) == 0) {
if (temp_free_disk > 100) {
gf_string2bytesize (temp_str,
- &conf->min_free_disk);
+ &conf->min_free_disk);
conf->disk_unit = 'b';
} else {
conf->min_free_disk = (uint64_t)temp_free_disk;
@@ -935,19 +935,19 @@ init (xlator_t *this)
}
} else {
gf_string2bytesize (temp_str,
- &conf->min_free_disk);
+ &conf->min_free_disk);
conf->disk_unit = 'b';
}
}
- data = dict_get (this->options, "pattern.switch.case");
- if (data) {
+ data = dict_get (this->options, "pattern.switch.case");
+ if (data) {
/* TODO: */
ret = set_switch_pattern (this, conf, data->data);
if (ret) {
goto err;
}
- }
+ }
ret = dht_init_subvolumes (this, conf);
if (ret == -1) {
@@ -959,10 +959,10 @@ init (xlator_t *this)
goto err;
}
- LOCK_INIT (&conf->subvolume_lock);
- LOCK_INIT (&conf->layout_lock);
+ LOCK_INIT (&conf->subvolume_lock);
+ LOCK_INIT (&conf->layout_lock);
- conf->gen = 1;
+ conf->gen = 1;
conf->du_stats = GF_CALLOC (conf->subvolume_cnt, sizeof (dht_du_t),
gf_switch_mt_dht_du_t);
@@ -991,8 +991,8 @@ err:
if (conf->subvolumes)
GF_FREE (conf->subvolumes);
- if (conf->subvolume_status)
- GF_FREE (conf->subvolume_status);
+ if (conf->subvolume_status)
+ GF_FREE (conf->subvolume_status);
if (conf->du_stats)
GF_FREE (conf->du_stats);
@@ -1005,48 +1005,48 @@ err:
struct xlator_fops fops = {
- .lookup = switch_lookup,
- .create = switch_create,
- .mknod = switch_mknod,
-
- .stat = dht_stat,
- .fstat = dht_fstat,
- .truncate = dht_truncate,
- .ftruncate = dht_ftruncate,
- .access = dht_access,
- .readlink = dht_readlink,
- .setxattr = dht_setxattr,
- .getxattr = dht_getxattr,
- .removexattr = dht_removexattr,
- .open = dht_open,
- .readv = dht_readv,
- .writev = dht_writev,
- .flush = dht_flush,
- .fsync = dht_fsync,
- .statfs = dht_statfs,
- .lk = dht_lk,
- .opendir = dht_opendir,
- .readdir = dht_readdir,
- .readdirp = dht_readdirp,
- .fsyncdir = dht_fsyncdir,
- .symlink = dht_symlink,
- .unlink = dht_unlink,
- .link = dht_link,
- .mkdir = dht_mkdir,
- .rmdir = dht_rmdir,
- .rename = dht_rename,
- .inodelk = dht_inodelk,
- .finodelk = dht_finodelk,
- .entrylk = dht_entrylk,
- .fentrylk = dht_fentrylk,
- .xattrop = dht_xattrop,
- .fxattrop = dht_fxattrop,
+ .lookup = switch_lookup,
+ .create = switch_create,
+ .mknod = switch_mknod,
+
+ .stat = dht_stat,
+ .fstat = dht_fstat,
+ .truncate = dht_truncate,
+ .ftruncate = dht_ftruncate,
+ .access = dht_access,
+ .readlink = dht_readlink,
+ .setxattr = dht_setxattr,
+ .getxattr = dht_getxattr,
+ .removexattr = dht_removexattr,
+ .open = dht_open,
+ .readv = dht_readv,
+ .writev = dht_writev,
+ .flush = dht_flush,
+ .fsync = dht_fsync,
+ .statfs = dht_statfs,
+ .lk = dht_lk,
+ .opendir = dht_opendir,
+ .readdir = dht_readdir,
+ .readdirp = dht_readdirp,
+ .fsyncdir = dht_fsyncdir,
+ .symlink = dht_symlink,
+ .unlink = dht_unlink,
+ .link = dht_link,
+ .mkdir = dht_mkdir,
+ .rmdir = dht_rmdir,
+ .rename = dht_rename,
+ .inodelk = dht_inodelk,
+ .finodelk = dht_finodelk,
+ .entrylk = dht_entrylk,
+ .fentrylk = dht_fentrylk,
+ .xattrop = dht_xattrop,
+ .fxattrop = dht_fxattrop,
.setattr = dht_setattr,
};
struct xlator_cbks cbks = {
- .forget = dht_forget
+ .forget = dht_forget
};
@@ -1054,13 +1054,13 @@ struct volume_options options[] = {
{ .key = {"lookup-unhashed"},
.value = {"auto", "yes", "no", "enable", "disable", "1", "0",
"on", "off"},
- .type = GF_OPTION_TYPE_STR
- },
- { .key = {"pattern.switch.case"},
- .type = GF_OPTION_TYPE_ANY
- },
+ .type = GF_OPTION_TYPE_STR
+ },
+ { .key = {"pattern.switch.case"},
+ .type = GF_OPTION_TYPE_ANY
+ },
{ .key = {"min-free-disk"},
.type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
},
- { .key = {NULL} },
+ { .key = {NULL} },
};
generated by cgit (git 2.34.1) at 2024-11-19 18:26:48 +0000