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authorAmar Tumballi <amar@gluster.com>2011-08-23 10:25:35 +0530
committerVijay Bellur <vijay@gluster.com>2011-09-05 05:41:23 -0700
commit992e580df4a38bb96b0114a3b033d0dc0b8425b7 (patch)
treeaa196b2e56682a2f34790c1103dd4ca9ce851504 /xlators/mgmt/glusterd/src/glusterd-quota.c
parent0504c5c24a8d8329321b9d5cdbc873c0fda32935 (diff)
mgmt/glusterd: code re-structuring
created new files per operations, (or group of operations) Change-Id: Iccb2a6a0cd9661bf940118344b2f7f723e23ab8b BUG: 3158 Reviewed-on: http://review.gluster.com/281 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-quota.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-quota.c810
1 files changed, 810 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-quota.c b/xlators/mgmt/glusterd/src/glusterd-quota.c
new file mode 100644
index 000000000..809b56efe
--- /dev/null
+++ b/xlators/mgmt/glusterd/src/glusterd-quota.c
@@ -0,0 +1,810 @@
+/*
+ Copyright (c) 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/>.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "common-utils.h"
+#include "cli1.h"
+#include "glusterd.h"
+#include "glusterd-op-sm.h"
+#include "glusterd-store.h"
+#include "glusterd-utils.h"
+#include "glusterd-volgen.h"
+#include "run.h"
+
+#include <sys/wait.h>
+
+int
+glusterd_handle_quota (rpcsvc_request_t *req)
+{
+ int32_t ret = -1;
+ gf1_cli_quota_req cli_req = {0,};
+ dict_t *dict = NULL;
+ glusterd_op_t cli_op = GD_OP_QUOTA;
+ char operation[256] = {0, };
+ char *volname = NULL;
+ int32_t type = 0;
+
+ GF_ASSERT (req);
+
+ if (!gf_xdr_to_cli_quota_req (req->msg[0], &cli_req)) {
+ //failed to decode msg;
+ req->rpc_err = GARBAGE_ARGS;
+ goto out;
+ }
+
+ if (cli_req.dict.dict_len) {
+ /* Unserialize the dictionary */
+ dict = dict_new ();
+
+ ret = dict_unserialize (cli_req.dict.dict_val,
+ cli_req.dict.dict_len,
+ &dict);
+ if (ret < 0) {
+ gf_log ("glusterd", GF_LOG_ERROR, "failed to "
+ "unserialize req-buffer to dictionary");
+ goto out;
+ } else {
+ dict->extra_stdfree = cli_req.dict.dict_val;
+ }
+ }
+
+ ret = dict_get_str (dict, "volname", &volname);
+ if (ret) {
+ gf_log ("", GF_LOG_WARNING, "Unable to get volume name, while"
+ "handling quota command");
+ goto out;
+ }
+
+ ret = dict_get_int32 (dict, "type", &type);
+ if (ret) {
+ gf_log ("", GF_LOG_WARNING, "Unable to get type of cmd. , while"
+ "handling quota command");
+ goto out;
+ }
+
+ switch (type) {
+ case GF_QUOTA_OPTION_TYPE_ENABLE:
+ strncpy (operation, "enable", sizeof (operation));
+ break;
+
+ case GF_QUOTA_OPTION_TYPE_DISABLE:
+ strncpy (operation, "disable", sizeof (operation));
+ break;
+
+ case GF_QUOTA_OPTION_TYPE_LIMIT_USAGE:
+ strncpy (operation, "limit-usage", sizeof (operation));
+ break;
+
+ case GF_QUOTA_OPTION_TYPE_REMOVE:
+ strncpy (operation, "remove", sizeof (operation));
+ break;
+ }
+ gf_cmd_log ("volume quota", " %s command on %s", operation, volname);
+ ret = glusterd_op_begin (req, GD_OP_QUOTA, dict);
+ gf_cmd_log ("volume quota", " %s command on %s %s", operation,volname,
+ (ret != 0)? "FAILED" : "SUCCEEDED");
+
+out:
+ glusterd_friend_sm ();
+ glusterd_op_sm ();
+
+ if (ret) {
+ if (dict)
+ dict_unref (dict);
+ ret = glusterd_op_send_cli_response (cli_op, ret, 0, req,
+ NULL, "operation failed");
+ }
+ if (cli_req.volname)
+ free (cli_req.volname); //malloced by xdr
+
+ return ret;
+}
+
+int32_t
+glusterd_check_if_quota_trans_enabled (glusterd_volinfo_t *volinfo)
+{
+ int32_t ret = 0;
+ int flag = _gf_false;
+
+ flag = glusterd_volinfo_get_boolean (volinfo, VKEY_FEATURES_QUOTA);
+ if (flag == -1) {
+ gf_log ("", GF_LOG_ERROR, "failed to get the quota status");
+ ret = -1;
+ goto out;
+ }
+
+ if (flag == _gf_false) {
+ gf_log ("", GF_LOG_ERROR, "first enable the quota translator");
+ ret = -1;
+ goto out;
+ }
+ ret = 0;
+out:
+ return ret;
+}
+
+/* At the end of the function, the variable found will be set
+ * to true if the path to be removed was present in the limit-list,
+ * else will be false.
+ */
+int32_t
+_glusterd_quota_remove_limits (char **quota_limits, char *path,
+ gf_boolean_t *found)
+{
+ int ret = 0;
+ int i = 0;
+ int size = 0;
+ int len = 0;
+ int pathlen = 0;
+ int skiplen = 0;
+ int flag = 0;
+ char *limits = NULL;
+ char *qlimits = NULL;
+
+ if (found != NULL)
+ *found = _gf_false;
+
+ if (*quota_limits == NULL)
+ return -1;
+
+ qlimits = *quota_limits;
+
+ pathlen = strlen (path);
+
+ len = strlen (qlimits);
+
+ limits = GF_CALLOC (len + 1, sizeof (char), gf_gld_mt_char);
+ if (!limits)
+ return -1;
+
+ while (i < len) {
+ if (!memcmp ((void *) &qlimits [i], (void *)path, pathlen))
+ if (qlimits [i + pathlen] == ':') {
+ flag = 1;
+ if (found != NULL)
+ *found = _gf_true;
+ }
+
+ while (qlimits [i + size] != ',' &&
+ qlimits [i + size] != '\0')
+ size++;
+
+ if (!flag) {
+ memcpy ((void *) &limits [i], (void *) &qlimits [i], size + 1);
+ } else {
+ skiplen = size + 1;
+ size = len - i - size;
+ memcpy ((void *) &limits [i], (void *) &qlimits [i + skiplen], size);
+ break;
+ }
+
+ i += size + 1;
+ size = 0;
+ }
+
+ if (!flag) {
+ ret = 1;
+ } else {
+ len = strlen (limits);
+
+ if (len == 0) {
+ GF_FREE (qlimits);
+
+ *quota_limits = NULL;
+
+ goto out;
+ }
+
+ if (limits[len - 1] == ',') {
+ limits[len - 1] = '\0';
+ len --;
+ }
+
+ GF_FREE (qlimits);
+
+ qlimits = GF_CALLOC (len + 1, sizeof (char), gf_gld_mt_char);
+
+ if (!qlimits) {
+ ret = -1;
+ goto out;
+ }
+
+ memcpy ((void *) qlimits, (void *) limits, len + 1);
+
+ *quota_limits = qlimits;
+
+ ret = 0;
+ }
+
+out:
+ if (limits)
+ GF_FREE (limits);
+
+ return ret;
+}
+
+int32_t
+glusterd_quota_initiate_fs_crawl (glusterd_conf_t *priv, char *volname)
+{
+ int32_t ret = 0;
+ pid_t pid;
+ char mountdir [] = "/tmp/mntXXXXXX";
+ runner_t runner = {0,};
+ int status = 0;
+
+ if (mkdtemp (mountdir) == NULL) {
+ gf_log ("glusterd", GF_LOG_DEBUG,
+ "failed to create a temporary mount directory");
+ ret = -1;
+ goto out;
+ }
+
+ runinit (&runner);
+ runner_add_args (&runner, GFS_PREFIX"/sbin/glusterfs", "-s",
+ "localhost", "--volfile-id", volname, "-l",
+ DEFAULT_LOG_FILE_DIRECTORY"/quota-crawl.log",
+ mountdir, NULL);
+
+ ret = runner_run_reuse (&runner);
+ if (ret == -1) {
+ runner_log (&runner, "glusterd", GF_LOG_DEBUG, "command failed");
+ runner_end (&runner);
+ goto out;
+ }
+ runner_end (&runner);
+
+ if ((pid = fork ()) < 0) {
+ gf_log ("glusterd", GF_LOG_WARNING, "fork from parent failed");
+ ret = -1;
+ goto out;
+ } else if (pid == 0) {//first child
+ /* fork one more to not hold back main process on
+ * blocking call below
+ */
+ pid = fork ();
+ if (pid)
+ _exit (pid > 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+
+ ret = chdir (mountdir);
+ if (ret == -1) {
+ gf_log ("glusterd", GF_LOG_WARNING, "chdir %s failed, "
+ "reason: %s", mountdir, strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+ runinit (&runner);
+ runner_add_args (&runner, "/usr/bin/find", "find", ".", NULL);
+ if (runner_start (&runner) == -1)
+ _exit (EXIT_FAILURE);
+
+#ifndef GF_LINUX_HOST_OS
+ runner_end (&runner); /* blocks in waitpid */
+ runcmd ("umount", mountdir, NULL);
+#else
+ runcmd ("umount", "-l", mountdir, NULL);
+#endif
+ rmdir (mountdir);
+ _exit (EXIT_SUCCESS);
+ }
+ ret = (waitpid (pid, &status, 0) == pid &&
+ WIFEXITED (status) && WEXITSTATUS (status) == EXIT_SUCCESS) ? 0 : -1;
+
+out:
+ return ret;
+}
+
+char *
+glusterd_quota_get_limit_value (char *quota_limits, char *path)
+{
+ int32_t i, j, k, l, len;
+ int32_t pat_len, diff;
+ char *ret_str = NULL;
+
+ len = strlen (quota_limits);
+ pat_len = strlen (path);
+ i = 0;
+ j = 0;
+
+ while (i < len) {
+ j = i;
+ k = 0;
+ while (path [k] == quota_limits [j]) {
+ j++;
+ k++;
+ }
+
+ l = j;
+
+ while (quota_limits [j] != ',' &&
+ quota_limits [j] != '\0')
+ j++;
+
+ if (quota_limits [l] == ':' && pat_len == (l - i)) {
+ diff = j - i;
+ ret_str = GF_CALLOC (diff + 1, sizeof (char),
+ gf_gld_mt_char);
+
+ strncpy (ret_str, &quota_limits [i], diff);
+
+ break;
+ }
+ i = ++j; //skip ','
+ }
+
+ return ret_str;
+}
+
+char*
+_glusterd_quota_get_limit_usages (glusterd_volinfo_t *volinfo,
+ char *path, char **op_errstr)
+{
+ int32_t ret = 0;
+ char *quota_limits = NULL;
+ char *ret_str = NULL;
+
+ if (volinfo == NULL)
+ return NULL;
+
+ ret = glusterd_volinfo_get (volinfo, VKEY_FEATURES_LIMIT_USAGE,
+ &quota_limits);
+ if (ret)
+ return NULL;
+ if (quota_limits == NULL) {
+ ret_str = NULL;
+ *op_errstr = gf_strdup ("Limit not set on any directory");
+ } else if (path == NULL)
+ ret_str = gf_strdup (quota_limits);
+ else
+ ret_str = glusterd_quota_get_limit_value (quota_limits, path);
+
+ return ret_str;
+}
+
+int32_t
+glusterd_quota_get_limit_usages (glusterd_conf_t *priv,
+ glusterd_volinfo_t *volinfo,
+ char *volname,
+ dict_t *dict,
+ char **op_errstr)
+{
+ int32_t i = 0;
+ int32_t ret = 0;
+ int32_t count = 0;
+ char *path = NULL;
+ dict_t *ctx = NULL;
+ char cmd_str [1024] = {0, };
+ char *ret_str = NULL;
+
+ ctx = glusterd_op_get_ctx ();
+ if (ctx == NULL)
+ return 0;
+
+ ret = dict_get_int32 (dict, "count", &count);
+ if (ret < 0)
+ goto out;
+
+ if (count == 0) {
+ ret_str = _glusterd_quota_get_limit_usages (volinfo, NULL,
+ op_errstr);
+ } else {
+ i = 0;
+ while (count--) {
+ snprintf (cmd_str, 1024, "path%d", i++);
+
+ ret = dict_get_str (dict, cmd_str, &path);
+ if (ret < 0)
+ goto out;
+
+ ret_str = _glusterd_quota_get_limit_usages (volinfo, path, op_errstr);
+ }
+ }
+
+ if (ret_str) {
+ ret = dict_set_dynstr (ctx, "limit_list", ret_str);
+ }
+out:
+ return ret;
+}
+
+int32_t
+glusterd_quota_enable (glusterd_volinfo_t *volinfo, char **op_errstr,
+ gf_boolean_t *crawl)
+{
+ int32_t ret = -1;
+ char *quota_status = NULL;
+
+ GF_VALIDATE_OR_GOTO ("glusterd", volinfo, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", crawl, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", op_errstr, out);
+
+ if (glusterd_is_volume_started (volinfo) == 0) {
+ *op_errstr = gf_strdup ("Volume is stopped, start volume "
+ "to enable quota.");
+ goto out;
+ }
+
+ ret = glusterd_check_if_quota_trans_enabled (volinfo);
+ if (ret == 0) {
+ *op_errstr = gf_strdup ("Quota is already enabled");
+ goto out;
+ }
+
+ quota_status = gf_strdup ("on");
+ if (!quota_status) {
+ gf_log ("", GF_LOG_ERROR, "memory allocation failed");
+ *op_errstr = gf_strdup ("Enabling quota has been unsuccessful");
+ goto out;
+ }
+
+ ret = dict_set_dynstr (volinfo->dict, VKEY_FEATURES_QUOTA, quota_status);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "dict set failed");
+ *op_errstr = gf_strdup ("Enabling quota has been unsuccessful");
+ goto out;
+ }
+
+ *op_errstr = gf_strdup ("Enabling quota has been successful");
+
+ *crawl = _gf_true;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int32_t
+glusterd_quota_disable (glusterd_volinfo_t *volinfo, char **op_errstr)
+{
+ int32_t ret = -1;
+ char *quota_status = NULL, *quota_limits = NULL;
+
+ GF_VALIDATE_OR_GOTO ("glusterd", volinfo, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", op_errstr, out);
+
+ ret = glusterd_check_if_quota_trans_enabled (volinfo);
+ if (ret == -1) {
+ *op_errstr = gf_strdup ("Quota is already disabled");
+ goto out;
+ }
+
+ quota_status = gf_strdup ("off");
+ if (!quota_status) {
+ gf_log ("", GF_LOG_ERROR, "memory allocation failed");
+ *op_errstr = gf_strdup ("Disabling quota has been unsuccessful");
+ goto out;
+ }
+
+ ret = dict_set_dynstr (volinfo->dict, VKEY_FEATURES_QUOTA, quota_status);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "dict set failed");
+ *op_errstr = gf_strdup ("Disabling quota has been unsuccessful");
+ goto out;
+ }
+
+ *op_errstr = gf_strdup ("Disabling quota has been successful");
+
+ ret = glusterd_volinfo_get (volinfo, VKEY_FEATURES_LIMIT_USAGE,
+ &quota_limits);
+ if (ret) {
+ gf_log ("", GF_LOG_WARNING, "failed to get the quota limits");
+ } else {
+ GF_FREE (quota_limits);
+ }
+
+ dict_del (volinfo->dict, VKEY_FEATURES_LIMIT_USAGE);
+
+out:
+ return ret;
+}
+
+int32_t
+glusterd_quota_limit_usage (glusterd_volinfo_t *volinfo, dict_t *dict, char **op_errstr)
+{
+ int32_t ret = -1;
+ char *path = NULL;
+ char *limit = NULL;
+ char *value = NULL;
+ char msg [1024] = {0,};
+ char *quota_limits = NULL;
+
+ GF_VALIDATE_OR_GOTO ("glusterd", dict, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", volinfo, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", op_errstr, out);
+
+ ret = glusterd_volinfo_get (volinfo, VKEY_FEATURES_LIMIT_USAGE,
+ &quota_limits);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "failed to get the quota limits");
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "path", &path);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to fetch quota limits" );
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "limit", &limit);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to fetch quota limits" );
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+
+ if (quota_limits) {
+ ret = _glusterd_quota_remove_limits (&quota_limits, path, NULL);
+ if (ret == -1) {
+ gf_log ("", GF_LOG_ERROR, "Unable to allocate memory");
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+ }
+
+ if (quota_limits == NULL) {
+ ret = gf_asprintf (&value, "%s:%s", path, limit);
+ if (ret == -1) {
+ gf_log ("", GF_LOG_ERROR, "Unable to allocate memory");
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+ } else {
+ ret = gf_asprintf (&value, "%s,%s:%s",
+ quota_limits, path, limit);
+ if (ret == -1) {
+ gf_log ("", GF_LOG_ERROR, "Unable to allocate memory");
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+
+ GF_FREE (quota_limits);
+ }
+
+ quota_limits = value;
+
+ ret = dict_set_str (volinfo->dict, VKEY_FEATURES_LIMIT_USAGE,
+ quota_limits);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to set quota limits" );
+ *op_errstr = gf_strdup ("failed to set limit");
+ goto out;
+ }
+ snprintf (msg, 1024, "limit set on %s", path);
+ *op_errstr = gf_strdup (msg);
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int32_t
+glusterd_quota_remove_limits (glusterd_volinfo_t *volinfo, dict_t *dict, char **op_errstr)
+{
+ int32_t ret = -1;
+ char str [PATH_MAX + 1024] = {0,};
+ char *quota_limits = NULL;
+ char *path = NULL;
+ gf_boolean_t flag = _gf_false;
+
+ GF_VALIDATE_OR_GOTO ("glusterd", dict, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", volinfo, out);
+ GF_VALIDATE_OR_GOTO ("glusterd", op_errstr, out);
+
+ ret = glusterd_check_if_quota_trans_enabled (volinfo);
+ if (ret == -1) {
+ *op_errstr = gf_strdup ("Quota is disabled, please enable quota");
+ goto out;
+ }
+
+ ret = glusterd_volinfo_get (volinfo, VKEY_FEATURES_LIMIT_USAGE,
+ &quota_limits);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "failed to get the quota limits");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "path", &path);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to fetch quota limits" );
+ goto out;
+ }
+
+ ret = _glusterd_quota_remove_limits (&quota_limits, path, &flag);
+ if (ret == -1) {
+ if (flag == _gf_true)
+ snprintf (str, sizeof (str), "Removing limit on %s has "
+ "been unsuccessful", path);
+ else
+ snprintf (str, sizeof (str), "%s has no limit set", path);
+ *op_errstr = gf_strdup (str);
+ goto out;
+ } else {
+ if (flag == _gf_true)
+ snprintf (str, sizeof (str), "Removed quota limit on "
+ "%s", path);
+ else
+ snprintf (str, sizeof (str), "no limit set on %s",
+ path);
+ *op_errstr = gf_strdup (str);
+ }
+
+ if (quota_limits) {
+ ret = dict_set_str (volinfo->dict, VKEY_FEATURES_LIMIT_USAGE,
+ quota_limits);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to set quota limits" );
+ goto out;
+ }
+ } else {
+ dict_del (volinfo->dict, VKEY_FEATURES_LIMIT_USAGE);
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+int
+glusterd_op_quota (dict_t *dict, char **op_errstr)
+{
+ glusterd_volinfo_t *volinfo = NULL;
+ int32_t ret = -1;
+ char *volname = NULL;
+ dict_t *ctx = NULL;
+ int type = -1;
+ gf_boolean_t start_crawl = _gf_false;
+ glusterd_conf_t *priv = NULL;
+
+ GF_ASSERT (dict);
+ GF_ASSERT (op_errstr);
+
+ priv = THIS->private;
+
+ ret = dict_get_str (dict, "volname", &volname);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to get volume name " );
+ goto out;
+ }
+
+ ret = glusterd_volinfo_find (volname, &volinfo);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to allocate memory");
+ goto out;
+ }
+
+ ret = dict_get_int32 (dict, "type", &type);
+
+ if (type == GF_QUOTA_OPTION_TYPE_ENABLE) {
+ ret = glusterd_quota_enable (volinfo, op_errstr, &start_crawl);
+ if (ret < 0)
+ goto out;
+
+ goto create_vol;
+ }
+
+ if (type == GF_QUOTA_OPTION_TYPE_DISABLE) {
+ ret = glusterd_quota_disable (volinfo, op_errstr);
+ if (ret < 0)
+ goto out;
+
+ goto create_vol;
+ }
+
+ if (type == GF_QUOTA_OPTION_TYPE_LIMIT_USAGE) {
+ ret = glusterd_quota_limit_usage (volinfo, dict, op_errstr);
+ if (ret < 0)
+ goto out;
+
+ goto create_vol;
+ }
+
+ if (type == GF_QUOTA_OPTION_TYPE_REMOVE) {
+ ret = glusterd_quota_remove_limits (volinfo, dict, op_errstr);
+ if (ret < 0)
+ goto out;
+
+ goto create_vol;
+ }
+
+ if (type == GF_QUOTA_OPTION_TYPE_LIST) {
+ ret = glusterd_check_if_quota_trans_enabled (volinfo);
+ if (ret == -1) {
+ *op_errstr = gf_strdup ("cannot list the limits, "
+ "quota is disabled");
+ goto out;
+ }
+
+ ret = glusterd_quota_get_limit_usages (priv, volinfo, volname,
+ dict, op_errstr);
+
+ goto out;
+ }
+create_vol:
+ ret = glusterd_create_volfiles_and_notify_services (volinfo);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to re-create volfile for"
+ " 'quota'");
+ ret = -1;
+ goto out;
+ }
+
+ ret = glusterd_store_volinfo (volinfo, GLUSTERD_VOLINFO_VER_AC_INCREMENT);
+ if (ret)
+ goto out;
+
+ if (GLUSTERD_STATUS_STARTED == volinfo->status)
+ ret = glusterd_check_generate_start_nfs ();
+
+ ret = 0;
+
+out:
+ ctx = glusterd_op_get_ctx ();
+ if (ctx && start_crawl == _gf_true)
+ glusterd_quota_initiate_fs_crawl (priv, volname);
+
+ if (ctx && *op_errstr) {
+ ret = dict_set_dynstr (ctx, "errstr", *op_errstr);
+ if (ret) {
+ GF_FREE (*op_errstr);
+ gf_log ("", GF_LOG_DEBUG,
+ "failed to set error message in ctx");
+ }
+ *op_errstr = NULL;
+ }
+
+ return ret;
+}
+
+int
+glusterd_op_stage_quota (dict_t *dict, char **op_errstr)
+{
+ int ret = 0;
+ char *volname = NULL;
+ gf_boolean_t exists = _gf_false;
+
+ GF_ASSERT (dict);
+ GF_ASSERT (op_errstr);
+
+ ret = dict_get_str (dict, "volname", &volname);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to get volume name");
+ goto out;
+ }
+
+ exists = glusterd_check_volume_exists (volname);
+ if (!exists) {
+ gf_log ("", GF_LOG_ERROR, "Volume with name: %s "
+ "does not exist",
+ volname);
+ *op_errstr = gf_strdup ("Invalid volume name");
+ ret = -1;
+ goto out;
+ }
+
+out:
+ gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
+
+ return ret;
+}