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-rw-r--r--xlators/cluster/dht/src/dht.c307
1 files changed, 68 insertions, 239 deletions
diff --git a/xlators/cluster/dht/src/dht.c b/xlators/cluster/dht/src/dht.c
index e004dee0d..fc0ca2f77 100644
--- a/xlators/cluster/dht/src/dht.c
+++ b/xlators/cluster/dht/src/dht.c
@@ -1,20 +1,11 @@
/*
- Copyright (c) 2008-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
- This file is part of GlusterFS.
+ Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.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/>.
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
*/
@@ -23,238 +14,76 @@
#include "config.h"
#endif
-/* TODO: add NS locking */
-
-#include "dht-common.c"
-
-/* TODO:
- - use volumename in xattr instead of "dht"
- - use NS locks
- - handle all cases in self heal layout reconstruction
- - complete linkfile selfheal
-*/
-
-
-
-int
-notify (xlator_t *this, int event, void *data, ...)
-{
- int ret = -1;
-
- ret = dht_notify (this, event, data);
-
- return ret;
-}
-
-void
-fini (xlator_t *this)
-{
- int i = 0;
- dht_conf_t *conf = NULL;
-
- conf = this->private;
-
- if (conf) {
- if (conf->file_layouts) {
- for (i = 0; i < conf->subvolume_cnt; i++) {
- FREE (conf->file_layouts[i]);
- }
- FREE (conf->file_layouts);
- }
-
- if (conf->default_dir_layout)
- FREE (conf->default_dir_layout);
-
- if (conf->subvolumes)
- FREE (conf->subvolumes);
-
- if (conf->subvolume_status)
- FREE (conf->subvolume_status);
-
- FREE (conf);
- }
-
- return;
-}
-
-int
-init (xlator_t *this)
-{
- dht_conf_t *conf = NULL;
- char *temp_str = NULL;
- int ret = -1;
- int i = 0;
- uint32_t temp_free_disk = 0;
-
- if (!this->children) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "Distribute needs more than one subvolume");
- return -1;
- }
-
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "dangling volume. check volfile");
- }
-
- conf = CALLOC (1, sizeof (*conf));
- if (!conf) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- conf->search_unhashed = 0;
-
- if (dict_get_str (this->options, "lookup-unhashed", &temp_str) == 0) {
- gf_string2boolean (temp_str, &conf->search_unhashed);
- }
-
- 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);
- }
-
- conf->disk_unit = 'p';
- conf->min_free_disk = 10;
-
- if (dict_get_str (this->options, "min-free-disk", &temp_str) == 0) {
- if (gf_string2percent (temp_str, &temp_free_disk) == 0) {
- if (temp_free_disk > 100) {
- gf_string2bytesize (temp_str,
- &conf->min_free_disk);
- conf->disk_unit = 'b';
- } else {
- conf->min_free_disk = (uint64_t)temp_free_disk;
- }
- } else {
- gf_string2bytesize (temp_str, &conf->min_free_disk);
- conf->disk_unit = 'b';
- }
- }
-
-
- ret = dht_init_subvolumes (this, conf);
- if (ret == -1) {
- goto err;
- }
-
- ret = dht_layouts_init (this, conf);
- if (ret == -1) {
- goto err;
- }
-
- conf->du_stats = CALLOC (conf->subvolume_cnt, sizeof (dht_du_t));
- if (!conf->du_stats) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- LOCK_INIT (&conf->subvolume_lock);
-
- conf->gen = 1;
-
- this->private = conf;
-
- return 0;
-
-err:
- if (conf) {
- if (conf->file_layouts) {
- for (i = 0; i < conf->subvolume_cnt; i++) {
- FREE (conf->file_layouts[i]);
- }
- FREE (conf->file_layouts);
- }
-
- if (conf->default_dir_layout)
- FREE (conf->default_dir_layout);
-
- if (conf->subvolumes)
- FREE (conf->subvolumes);
-
- if (conf->subvolume_status)
- FREE (conf->subvolume_status);
-
- if (conf->du_stats)
- FREE (conf->du_stats);
-
- FREE (conf);
- }
-
- return -1;
-}
+#include "statedump.h"
+#include "dht-common.h"
+class_methods_t class_methods = {
+ .init = dht_init,
+ .fini = dht_fini,
+ .reconfigure = dht_reconfigure,
+ .notify = dht_notify
+};
struct xlator_fops fops = {
- .lookup = dht_lookup,
- .mknod = dht_mknod,
- .create = dht_create,
-
- .stat = dht_stat,
- .chmod = dht_chmod,
- .chown = dht_chown,
- .fchown = dht_fchown,
- .fchmod = dht_fchmod,
- .fstat = dht_fstat,
- .utimens = dht_utimens,
- .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,
- .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,
-#if 0
- .setdents = dht_setdents,
- .getdents = dht_getdents,
- .checksum = dht_checksum,
-#endif
+ .lookup = dht_lookup,
+ .mknod = dht_mknod,
+ .create = dht_create,
+
+ .open = dht_open,
+ .statfs = dht_statfs,
+ .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,
+ .entrylk = dht_entrylk,
+ .fentrylk = dht_fentrylk,
+
+ /* Inode read operations */
+ .stat = dht_stat,
+ .fstat = dht_fstat,
+ .access = dht_access,
+ .readlink = dht_readlink,
+ .getxattr = dht_getxattr,
+ .fgetxattr = dht_fgetxattr,
+ .readv = dht_readv,
+ .flush = dht_flush,
+ .fsync = dht_fsync,
+ .inodelk = dht_inodelk,
+ .finodelk = dht_finodelk,
+ .lk = dht_lk,
+
+ /* Inode write operations */
+ .fremovexattr = dht_fremovexattr,
+ .removexattr = dht_removexattr,
+ .setxattr = dht_setxattr,
+ .fsetxattr = dht_fsetxattr,
+ .truncate = dht_truncate,
+ .ftruncate = dht_ftruncate,
+ .writev = dht_writev,
+ .xattrop = dht_xattrop,
+ .fxattrop = dht_fxattrop,
+ .setattr = dht_setattr,
+ .fsetattr = dht_fsetattr,
+ .fallocate = dht_fallocate,
+ .discard = dht_discard,
+ .zerofill = dht_zerofill,
};
-
-struct xlator_mops mops = {
+struct xlator_dumpops dumpops = {
+ .priv = dht_priv_dump,
+ .inodectx = dht_inodectx_dump,
};
struct xlator_cbks cbks = {
-// .release = dht_release,
+// .release = dht_release,
// .releasedir = dht_releasedir,
- .forget = dht_forget
-};
-
-
-struct volume_options options[] = {
- { .key = {"lookup-unhashed"},
- .type = GF_OPTION_TYPE_BOOL
- },
- { .key = {"min-free-disk"},
- .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
- },
- { .key = {NULL} },
+ .forget = dht_forget
};
+;
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