/*
* Copyright (C) 2013 DataDirect Networks, Inc.
*
+ * Copyright (c) 2014, Intel Corporation.
*/
/*
* lustre/ptlrpc/nrs_tbf.c
*/
#define DEBUG_SUBSYSTEM S_RPC
-#ifndef __KERNEL__
-#include <liblustre.h>
-#endif
#include <obd_support.h>
#include <obd_class.h>
#include <libcfs/libcfs.h>
#define NRS_POL_NAME_TBF "tbf"
-int tbf_jobid_cache_size = 8192;
+static int tbf_jobid_cache_size = 8192;
CFS_MODULE_PARM(tbf_jobid_cache_size, "i", int, 0644,
"The size of jobid cache");
-int tbf_rate = 10000;
+static int tbf_rate = 10000;
CFS_MODULE_PARM(tbf_rate, "i", int, 0644,
"Default rate limit in RPCs/s");
-int tbf_depth = 3;
+static int tbf_depth = 3;
CFS_MODULE_PARM(tbf_depth, "i", int, 0644,
"How many tokens that a client can save up");
static void nrs_tbf_rule_fini(struct nrs_tbf_rule *rule)
{
LASSERT(atomic_read(&rule->tr_ref) == 0);
- LASSERT(cfs_list_empty(&rule->tr_cli_list));
- LASSERT(cfs_list_empty(&rule->tr_linkage));
+ LASSERT(list_empty(&rule->tr_cli_list));
+ LASSERT(list_empty(&rule->tr_linkage));
rule->tr_head->th_ops->o_rule_fini(rule);
OBD_FREE_PTR(rule);
static void
nrs_tbf_cli_rule_put(struct nrs_tbf_client *cli)
{
- LASSERT(!cfs_list_empty(&cli->tc_linkage));
+ LASSERT(!list_empty(&cli->tc_linkage));
LASSERT(cli->tc_rule);
- cfs_list_del_init(&cli->tc_linkage);
+ list_del_init(&cli->tc_linkage);
nrs_tbf_rule_put(cli->tc_rule);
cli->tc_rule = NULL;
}
struct nrs_tbf_rule *rule,
struct nrs_tbf_client *cli)
{
- if (!cfs_list_empty(&cli->tc_linkage)) {
+ if (!list_empty(&cli->tc_linkage)) {
LASSERT(rule != cli->tc_rule);
nrs_tbf_cli_rule_put(cli);
}
LASSERT(cli->tc_rule == NULL);
- LASSERT(cfs_list_empty(&cli->tc_linkage));
+ LASSERT(list_empty(&cli->tc_linkage));
/* Rule's ref is added before called */
cli->tc_rule = rule;
- cfs_list_add_tail(&cli->tc_linkage, &rule->tr_cli_list);
+ list_add_tail(&cli->tc_linkage, &rule->tr_cli_list);
nrs_tbf_cli_reset_value(head, cli);
}
static int
-nrs_tbf_rule_dump(struct nrs_tbf_rule *rule, char *buff, int length)
+nrs_tbf_rule_dump(struct nrs_tbf_rule *rule, struct seq_file *m)
{
- return rule->tr_head->th_ops->o_rule_dump(rule, buff, length);
+ return rule->tr_head->th_ops->o_rule_dump(rule, m);
}
static int
-nrs_tbf_rule_dump_all(struct nrs_tbf_head *head, char *buff, int length)
+nrs_tbf_rule_dump_all(struct nrs_tbf_head *head, struct seq_file *m)
{
struct nrs_tbf_rule *rule;
int rc = 0;
LASSERT(head != NULL);
spin_lock(&head->th_rule_lock);
/* List the rules from newest to oldest */
- cfs_list_for_each_entry(rule, &head->th_list, tr_linkage) {
+ list_for_each_entry(rule, &head->th_list, tr_linkage) {
LASSERT((rule->tr_flags & NTRS_STOPPING) == 0);
- rc += nrs_tbf_rule_dump(rule, buff + rc, length - rc);
+ rc = nrs_tbf_rule_dump(rule, m);
+ if (rc) {
+ rc = -ENOSPC;
+ break;
+ }
}
spin_unlock(&head->th_rule_lock);
struct nrs_tbf_rule *rule;
LASSERT(head != NULL);
- cfs_list_for_each_entry(rule, &head->th_list, tr_linkage) {
+ list_for_each_entry(rule, &head->th_list, tr_linkage) {
LASSERT((rule->tr_flags & NTRS_STOPPING) == 0);
if (strcmp(rule->tr_name, name) == 0) {
nrs_tbf_rule_get(rule);
spin_lock(&head->th_rule_lock);
/* Match the newest rule in the list */
- cfs_list_for_each_entry(tmp_rule, &head->th_list, tr_linkage) {
+ list_for_each_entry(tmp_rule, &head->th_list, tr_linkage) {
LASSERT((tmp_rule->tr_flags & NTRS_STOPPING) == 0);
if (head->th_ops->o_rule_match(tmp_rule, cli)) {
rule = tmp_rule;
cli->tc_in_heap = false;
head->th_ops->o_cli_init(cli, req);
- CFS_INIT_LIST_HEAD(&cli->tc_list);
- CFS_INIT_LIST_HEAD(&cli->tc_linkage);
+ INIT_LIST_HEAD(&cli->tc_list);
+ INIT_LIST_HEAD(&cli->tc_linkage);
atomic_set(&cli->tc_ref, 1);
rule = nrs_tbf_rule_match(head, cli);
nrs_tbf_cli_reset(head, rule, cli);
static void
nrs_tbf_cli_fini(struct nrs_tbf_client *cli)
{
- LASSERT(cfs_list_empty(&cli->tc_list));
+ LASSERT(list_empty(&cli->tc_list));
LASSERT(!cli->tc_in_heap);
LASSERT(atomic_read(&cli->tc_ref) == 0);
nrs_tbf_cli_rule_put(cli);
rule->tr_nsecs = NSEC_PER_SEC / rule->tr_rpc_rate;
rule->tr_depth = tbf_depth;
atomic_set(&rule->tr_ref, 1);
- CFS_INIT_LIST_HEAD(&rule->tr_cli_list);
- CFS_INIT_LIST_HEAD(&rule->tr_nids);
+ INIT_LIST_HEAD(&rule->tr_cli_list);
+ INIT_LIST_HEAD(&rule->tr_nids);
rc = head->th_ops->o_rule_init(policy, rule, start);
if (rc) {
spin_lock(&head->th_rule_lock);
tmp_rule = nrs_tbf_rule_find_nolock(head, start->tc_name);
if (tmp_rule) {
+ spin_unlock(&head->th_rule_lock);
nrs_tbf_rule_put(tmp_rule);
nrs_tbf_rule_put(rule);
return -EEXIST;
}
- cfs_list_add(&rule->tr_linkage, &head->th_list);
+ list_add(&rule->tr_linkage, &head->th_list);
rule->tr_head = head;
spin_unlock(&head->th_rule_lock);
atomic_inc(&head->th_rule_sequence);
{
struct nrs_tbf_rule *rule;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_lock);
rule = nrs_tbf_rule_find(head, change->tc_name);
if (rule == NULL)
{
struct nrs_tbf_rule *rule;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_lock);
if (strcmp(stop->tc_name, NRS_TBF_DEFAULT_RULE) == 0)
return -EPERM;
if (rule == NULL)
return -ENOENT;
- cfs_list_del_init(&rule->tr_linkage);
+ list_del_init(&rule->tr_linkage);
rule->tr_flags |= NTRS_STOPPING;
nrs_tbf_rule_put(rule);
nrs_tbf_rule_put(rule);
{
int rc;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_lock);
switch (cmd->tc_cmd) {
case NRS_CTL_TBF_START_RULE:
return cfs_hash_djb2_hash(key, strlen(key), mask);
}
-static int nrs_tbf_jobid_hop_keycmp(const void *key, cfs_hlist_node_t *hnode)
+static int nrs_tbf_jobid_hop_keycmp(const void *key, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
return (strcmp(cli->tc_jobid, key) == 0);
}
-static void *nrs_tbf_jobid_hop_key(cfs_hlist_node_t *hnode)
+static void *nrs_tbf_jobid_hop_key(struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
return cli->tc_jobid;
}
-static void *nrs_tbf_jobid_hop_object(cfs_hlist_node_t *hnode)
+static void *nrs_tbf_jobid_hop_object(struct hlist_node *hnode)
{
- return cfs_hlist_entry(hnode, struct nrs_tbf_client, tc_hnode);
+ return hlist_entry(hnode, struct nrs_tbf_client, tc_hnode);
}
-static void nrs_tbf_jobid_hop_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_jobid_hop_get(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
atomic_inc(&cli->tc_ref);
}
-static void nrs_tbf_jobid_hop_put(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_jobid_hop_put(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
atomic_dec(&cli->tc_ref);
}
-static void nrs_tbf_jobid_hop_exit(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_jobid_hop_exit(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
cfs_hash_bd_t *bd,
const char *jobid)
{
- cfs_hlist_node_t *hnode;
+ struct hlist_node *hnode;
struct nrs_tbf_client *cli;
/* cfs_hash_bd_peek_locked is a somehow "internal" function
cfs_hash_get(hs, hnode);
cli = container_of0(hnode, struct nrs_tbf_client, tc_hnode);
- if (!cfs_list_empty(&cli->tc_lru))
- cfs_list_del_init(&cli->tc_lru);
+ if (!list_empty(&cli->tc_lru))
+ list_del_init(&cli->tc_lru);
return cli;
}
cfs_hash_t *hs = head->th_cli_hash;
struct nrs_tbf_bucket *bkt;
int hw;
- CFS_LIST_HEAD (zombies);
+ struct list_head zombies;
+ INIT_LIST_HEAD(&zombies);
cfs_hash_bd_get(hs, &cli->tc_jobid, &bd);
bkt = cfs_hash_bd_extra_get(hs, &bd);
if (!cfs_hash_bd_dec_and_lock(hs, &bd, &cli->tc_ref))
return;
- LASSERT(cfs_list_empty(&cli->tc_lru));
- cfs_list_add_tail(&cli->tc_lru, &bkt->ntb_lru);
+ LASSERT(list_empty(&cli->tc_lru));
+ list_add_tail(&cli->tc_lru, &bkt->ntb_lru);
/*
* Check and purge the LRU, there is at least one client in the LRU.
hw = tbf_jobid_cache_size >>
(hs->hs_cur_bits - hs->hs_bkt_bits);
while (cfs_hash_bd_count_get(&bd) > hw) {
- if (unlikely(cfs_list_empty(&bkt->ntb_lru)))
+ if (unlikely(list_empty(&bkt->ntb_lru)))
break;
- cli = cfs_list_entry(bkt->ntb_lru.next,
+ cli = list_entry(bkt->ntb_lru.next,
struct nrs_tbf_client,
tc_lru);
LASSERT(atomic_read(&cli->tc_ref) == 0);
cfs_hash_bd_del_locked(hs, &bd, &cli->tc_hnode);
- cfs_list_move(&cli->tc_lru, &zombies);
+ list_move(&cli->tc_lru, &zombies);
}
cfs_hash_bd_unlock(head->th_cli_hash, &bd, 1);
- while (!cfs_list_empty(&zombies)) {
+ while (!list_empty(&zombies)) {
cli = container_of0(zombies.next,
struct nrs_tbf_client, tc_lru);
- cfs_list_del_init(&cli->tc_lru);
+ list_del_init(&cli->tc_lru);
nrs_tbf_cli_fini(cli);
}
}
if (jobid == NULL)
jobid = NRS_TBF_JOBID_NULL;
- LASSERT(strlen(jobid) < JOBSTATS_JOBID_SIZE);
- CFS_INIT_LIST_HEAD(&cli->tc_lru);
+ LASSERT(strlen(jobid) < LUSTRE_JOBID_SIZE);
+ INIT_LIST_HEAD(&cli->tc_lru);
memcpy(cli->tc_jobid, jobid, strlen(jobid));
}
cfs_hash_for_each_bucket(head->th_cli_hash, &bd, i) {
bkt = cfs_hash_bd_extra_get(head->th_cli_hash, &bd);
- CFS_INIT_LIST_HEAD(&bkt->ntb_lru);
+ INIT_LIST_HEAD(&bkt->ntb_lru);
}
memset(&start, 0, sizeof(start));
start.tc_rpc_rate = tbf_rate;
start.tc_rule_flags = NTRS_DEFAULT;
start.tc_name = NRS_TBF_DEFAULT_RULE;
- CFS_INIT_LIST_HEAD(&start.tc_jobids);
+ INIT_LIST_HEAD(&start.tc_jobids);
rc = nrs_tbf_rule_start(policy, head, &start);
return rc;
*
*/
static void
-nrs_tbf_jobid_list_free(cfs_list_t *jobid_list)
+nrs_tbf_jobid_list_free(struct list_head *jobid_list)
{
struct nrs_tbf_jobid *jobid, *n;
- cfs_list_for_each_entry_safe(jobid, n, jobid_list, tj_linkage) {
+ list_for_each_entry_safe(jobid, n, jobid_list, tj_linkage) {
OBD_FREE(jobid->tj_id, strlen(jobid->tj_id) + 1);
- cfs_list_del(&jobid->tj_linkage);
+ list_del(&jobid->tj_linkage);
OBD_FREE(jobid, sizeof(struct nrs_tbf_jobid));
}
}
static int
-nrs_tbf_jobid_list_add(const struct cfs_lstr *id, cfs_list_t *jobid_list)
+nrs_tbf_jobid_list_add(const struct cfs_lstr *id, struct list_head *jobid_list)
{
struct nrs_tbf_jobid *jobid;
}
memcpy(jobid->tj_id, id->ls_str, id->ls_len);
- cfs_list_add_tail(&jobid->tj_linkage, jobid_list);
+ list_add_tail(&jobid->tj_linkage, jobid_list);
return 0;
}
static int
-nrs_tbf_jobid_list_match(cfs_list_t *jobid_list, char *id)
+nrs_tbf_jobid_list_match(struct list_head *jobid_list, char *id)
{
struct nrs_tbf_jobid *jobid;
- cfs_list_for_each_entry(jobid, jobid_list, tj_linkage) {
+ list_for_each_entry(jobid, jobid_list, tj_linkage) {
if (strcmp(id, jobid->tj_id) == 0)
return 1;
}
}
static int
-nrs_tbf_jobid_list_parse(char *str, int len, cfs_list_t *jobid_list)
+nrs_tbf_jobid_list_parse(char *str, int len, struct list_head *jobid_list)
{
struct cfs_lstr src;
struct cfs_lstr res;
src.ls_str = str;
src.ls_len = len;
- CFS_INIT_LIST_HEAD(jobid_list);
+ INIT_LIST_HEAD(jobid_list);
while (src.ls_str) {
rc = cfs_gettok(&src, ' ', &res);
if (rc == 0) {
static void nrs_tbf_jobid_cmd_fini(struct nrs_tbf_cmd *cmd)
{
- if (!cfs_list_empty(&cmd->tc_jobids))
+ if (!list_empty(&cmd->tc_jobids))
nrs_tbf_jobid_list_free(&cmd->tc_jobids);
if (cmd->tc_jobids_str)
OBD_FREE(cmd->tc_jobids_str, strlen(cmd->tc_jobids_str) + 1);
start->tc_jobids_str,
strlen(start->tc_jobids_str));
- CFS_INIT_LIST_HEAD(&rule->tr_jobids);
- if (!cfs_list_empty(&start->tc_jobids)) {
+ INIT_LIST_HEAD(&rule->tr_jobids);
+ if (!list_empty(&start->tc_jobids)) {
rc = nrs_tbf_jobid_list_parse(rule->tr_jobids_str,
strlen(rule->tr_jobids_str),
&rule->tr_jobids);
}
static int
-nrs_tbf_jobid_rule_dump(struct nrs_tbf_rule *rule, char *buff, int length)
+nrs_tbf_jobid_rule_dump(struct nrs_tbf_rule *rule, struct seq_file *m)
{
- return snprintf(buff, length, "%s {%s} %llu, ref %d\n",
- rule->tr_name,
- rule->tr_jobids_str,
- rule->tr_rpc_rate,
- atomic_read(&rule->tr_ref) - 1);
+ return seq_printf(m, "%s {%s} %llu, ref %d\n", rule->tr_name,
+ rule->tr_jobids_str, rule->tr_rpc_rate,
+ atomic_read(&rule->tr_ref) - 1);
}
static int
static void nrs_tbf_jobid_rule_fini(struct nrs_tbf_rule *rule)
{
- if (!cfs_list_empty(&rule->tr_jobids))
+ if (!list_empty(&rule->tr_jobids))
nrs_tbf_jobid_list_free(&rule->tr_jobids);
LASSERT(rule->tr_jobids_str != NULL);
OBD_FREE(rule->tr_jobids_str, strlen(rule->tr_jobids_str) + 1);
}
-struct nrs_tbf_ops nrs_tbf_jobid_ops = {
+static struct nrs_tbf_ops nrs_tbf_jobid_ops = {
.o_name = NRS_TBF_TYPE_JOBID,
.o_startup = nrs_tbf_jobid_startup,
.o_cli_find = nrs_tbf_jobid_cli_find,
return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
}
-static int nrs_tbf_nid_hop_keycmp(const void *key, cfs_hlist_node_t *hnode)
+static int nrs_tbf_nid_hop_keycmp(const void *key, struct hlist_node *hnode)
{
lnet_nid_t *nid = (lnet_nid_t *)key;
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
return *nid == cli->tc_nid;
}
-static void *nrs_tbf_nid_hop_key(cfs_hlist_node_t *hnode)
+static void *nrs_tbf_nid_hop_key(struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
return &cli->tc_nid;
}
-static void *nrs_tbf_nid_hop_object(cfs_hlist_node_t *hnode)
+static void *nrs_tbf_nid_hop_object(struct hlist_node *hnode)
{
- return cfs_hlist_entry(hnode, struct nrs_tbf_client, tc_hnode);
+ return hlist_entry(hnode, struct nrs_tbf_client, tc_hnode);
}
-static void nrs_tbf_nid_hop_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_nid_hop_get(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
atomic_inc(&cli->tc_ref);
}
-static void nrs_tbf_nid_hop_put(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_nid_hop_put(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
atomic_dec(&cli->tc_ref);
}
-static void nrs_tbf_nid_hop_exit(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
+static void nrs_tbf_nid_hop_exit(cfs_hash_t *hs, struct hlist_node *hnode)
{
- struct nrs_tbf_client *cli = cfs_hlist_entry(hnode,
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
struct nrs_tbf_client,
tc_hnode);
start.tc_rpc_rate = tbf_rate;
start.tc_rule_flags = NTRS_DEFAULT;
start.tc_name = NRS_TBF_DEFAULT_RULE;
- CFS_INIT_LIST_HEAD(&start.tc_nids);
+ INIT_LIST_HEAD(&start.tc_nids);
rc = nrs_tbf_rule_start(policy, head, &start);
return rc;
start->tc_nids_str,
strlen(start->tc_nids_str));
- CFS_INIT_LIST_HEAD(&rule->tr_nids);
- if (!cfs_list_empty(&start->tc_nids)) {
+ INIT_LIST_HEAD(&rule->tr_nids);
+ if (!list_empty(&start->tc_nids)) {
if (cfs_parse_nidlist(rule->tr_nids_str,
strlen(rule->tr_nids_str),
&rule->tr_nids) <= 0) {
}
static int
-nrs_tbf_nid_rule_dump(struct nrs_tbf_rule *rule, char *buff, int length)
+nrs_tbf_nid_rule_dump(struct nrs_tbf_rule *rule, struct seq_file *m)
{
- return snprintf(buff, length, "%s {%s} %llu, ref %d\n",
- rule->tr_name,
- rule->tr_nids_str,
- rule->tr_rpc_rate,
- atomic_read(&rule->tr_ref) - 1);
+ return seq_printf(m, "%s {%s} %llu, ref %d\n", rule->tr_name,
+ rule->tr_nids_str, rule->tr_rpc_rate,
+ atomic_read(&rule->tr_ref) - 1);
}
static int
static void nrs_tbf_nid_rule_fini(struct nrs_tbf_rule *rule)
{
- if (!cfs_list_empty(&rule->tr_nids))
+ if (!list_empty(&rule->tr_nids))
cfs_free_nidlist(&rule->tr_nids);
LASSERT(rule->tr_nids_str != NULL);
OBD_FREE(rule->tr_nids_str, strlen(rule->tr_nids_str) + 1);
static void nrs_tbf_nid_cmd_fini(struct nrs_tbf_cmd *cmd)
{
- if (!cfs_list_empty(&cmd->tc_nids))
+ if (!list_empty(&cmd->tc_nids))
cfs_free_nidlist(&cmd->tc_nids);
if (cmd->tc_nids_str)
OBD_FREE(cmd->tc_nids_str, strlen(cmd->tc_nids_str) + 1);
return 0;
}
-struct nrs_tbf_ops nrs_tbf_nid_ops = {
+static struct nrs_tbf_ops nrs_tbf_nid_ops = {
.o_name = NRS_TBF_TYPE_NID,
.o_startup = nrs_tbf_nid_startup,
.o_cli_find = nrs_tbf_nid_cli_find,
atomic_set(&head->th_rule_sequence, 0);
spin_lock_init(&head->th_rule_lock);
- CFS_INIT_LIST_HEAD(&head->th_list);
+ INIT_LIST_HEAD(&head->th_list);
hrtimer_init(&head->th_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
head->th_timer.function = nrs_tbf_timer_cb;
rc = head->th_ops->o_startup(policy, head);
hrtimer_cancel(&head->th_timer);
/* Should cleanup hash first before free rules */
cfs_hash_putref(head->th_cli_hash);
- cfs_list_for_each_entry_safe(rule, n, &head->th_list, tr_linkage) {
- cfs_list_del_init(&rule->tr_linkage);
+ list_for_each_entry_safe(rule, n, &head->th_list, tr_linkage) {
+ list_del_init(&rule->tr_linkage);
nrs_tbf_rule_put(rule);
}
- LASSERT(cfs_list_empty(&head->th_list));
+ LASSERT(list_empty(&head->th_list));
LASSERT(head->th_binheap != NULL);
LASSERT(cfs_binheap_is_empty(head->th_binheap));
cfs_binheap_destroy(head->th_binheap);
* \param[in] opc the opcode
* \param[in,out] arg used for passing parameters and information
*
- * \pre spin_is_locked(&policy->pol_nrs->->nrs_lock)
- * \post spin_is_locked(&policy->pol_nrs->->nrs_lock)
+ * \pre assert_spin_locked(&policy->pol_nrs->->nrs_lock)
+ * \post assert_spin_locked(&policy->pol_nrs->->nrs_lock)
*
* \retval 0 operation carried out successfully
* \retval -ve error
*/
-int nrs_tbf_ctl(struct ptlrpc_nrs_policy *policy, enum ptlrpc_nrs_ctl opc,
- void *arg)
+static int nrs_tbf_ctl(struct ptlrpc_nrs_policy *policy,
+ enum ptlrpc_nrs_ctl opc,
+ void *arg)
{
int rc = 0;
ENTRY;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_lock);
switch ((enum nrs_ctl_tbf)opc) {
default:
*/
case NRS_CTL_TBF_RD_RULE: {
struct nrs_tbf_head *head = policy->pol_private;
+ struct seq_file *m = (struct seq_file *) arg;
struct ptlrpc_service_part *svcpt;
- struct nrs_tbf_dump *dump;
- int length;
-
- dump = (struct nrs_tbf_dump *)arg;
svcpt = policy->pol_nrs->nrs_svcpt;
- length = snprintf(dump->td_buff, dump->td_size,
- "CPT %d:\n",
- svcpt->scp_cpt);
- dump->td_length += length;
- dump->td_buff += length;
- dump->td_size -= length;
-
- length = nrs_tbf_rule_dump_all(head,
- dump->td_buff,
- dump->td_size);
- dump->td_length += length;
- dump->td_buff += length;
- dump->td_size -= length;
+ seq_printf(m, "CPT %d:\n", svcpt->scp_cpt);
+
+ rc = nrs_tbf_rule_dump_all(head, m);
}
break;
struct nrs_tbf_client *cli;
cfs_binheap_node_t *node;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock);
if (!peek && policy->pol_nrs->nrs_throttling)
return NULL;
cli = container_of(node, struct nrs_tbf_client, tc_node);
LASSERT(cli->tc_in_heap);
if (peek) {
- nrq = cfs_list_entry(cli->tc_list.next,
+ nrq = list_entry(cli->tc_list.next,
struct ptlrpc_nrs_request,
nr_u.tbf.tr_list);
} else {
ntoken = cli->tc_depth;
if (ntoken > 0) {
struct ptlrpc_request *req;
- nrq = cfs_list_entry(cli->tc_list.next,
+ nrq = list_entry(cli->tc_list.next,
struct ptlrpc_nrs_request,
nr_u.tbf.tr_list);
req = container_of(nrq,
ntoken--;
cli->tc_ntoken = ntoken;
cli->tc_check_time = now;
- cfs_list_del_init(&nrq->nr_u.tbf.tr_list);
- if (cfs_list_empty(&cli->tc_list)) {
+ list_del_init(&nrq->nr_u.tbf.tr_list);
+ if (list_empty(&cli->tc_list)) {
cfs_binheap_remove(head->th_binheap,
&cli->tc_node);
cli->tc_in_heap = false;
struct nrs_tbf_client *cli;
int rc = 0;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock);
cli = container_of(nrs_request_resource(nrq),
struct nrs_tbf_client, tc_res);
head = container_of(nrs_request_resource(nrq)->res_parent,
struct nrs_tbf_head, th_res);
- if (cfs_list_empty(&cli->tc_list)) {
+ if (list_empty(&cli->tc_list)) {
LASSERT(!cli->tc_in_heap);
rc = cfs_binheap_insert(head->th_binheap, &cli->tc_node);
if (rc == 0) {
cli->tc_in_heap = true;
nrq->nr_u.tbf.tr_sequence = head->th_sequence++;
- cfs_list_add_tail(&nrq->nr_u.tbf.tr_list,
+ list_add_tail(&nrq->nr_u.tbf.tr_list,
&cli->tc_list);
if (policy->pol_nrs->nrs_throttling) {
__u64 deadline = cli->tc_check_time +
} else {
LASSERT(cli->tc_in_heap);
nrq->nr_u.tbf.tr_sequence = head->th_sequence++;
- cfs_list_add_tail(&nrq->nr_u.tbf.tr_list,
+ list_add_tail(&nrq->nr_u.tbf.tr_list,
&cli->tc_list);
}
return rc;
struct nrs_tbf_head *head;
struct nrs_tbf_client *cli;
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock);
cli = container_of(nrs_request_resource(nrq),
struct nrs_tbf_client, tc_res);
head = container_of(nrs_request_resource(nrq)->res_parent,
struct nrs_tbf_head, th_res);
- LASSERT(!cfs_list_empty(&nrq->nr_u.tbf.tr_list));
- cfs_list_del_init(&nrq->nr_u.tbf.tr_list);
- if (cfs_list_empty(&cli->tc_list)) {
+ LASSERT(!list_empty(&nrq->nr_u.tbf.tr_list));
+ list_del_init(&nrq->nr_u.tbf.tr_list);
+ if (list_empty(&cli->tc_list)) {
cfs_binheap_remove(head->th_binheap,
&cli->tc_node);
cli->tc_in_heap = false;
struct ptlrpc_request *req = container_of(nrq, struct ptlrpc_request,
rq_nrq);
- LASSERT(spin_is_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock));
+ assert_spin_locked(&policy->pol_nrs->nrs_svcpt->scp_req_lock);
CDEBUG(D_RPCTRACE, "NRS stop %s request from %s, seq: "LPU64"\n",
policy->pol_desc->pd_name, libcfs_id2str(req->rq_peer),
nrq->nr_u.tbf.tr_sequence);
}
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
/**
* lprocfs interface
*/
#define LPROCFS_NRS_RATE_MAX 65535
-static int ptlrpc_lprocfs_rd_nrs_tbf_rule(char *page, char **start,
- off_t off, int count, int *eof,
- void *data)
+static int
+ptlrpc_lprocfs_nrs_tbf_rule_seq_show(struct seq_file *m, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = m->private;
int rc;
- int rc2;
- struct nrs_tbf_dump dump;
- rc2 = snprintf(page, count, "regular_requests:\n");
+ seq_printf(m, "regular_requests:\n");
/**
* Perform two separate calls to this as only one of the NRS heads'
* policies may be in the ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED or
* ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPING state.
*/
- dump.td_length = 0;
- dump.td_buff = page + rc2;
- dump.td_size = count - rc2;
rc = ptlrpc_nrs_policy_control(svc, PTLRPC_NRS_QUEUE_REG,
NRS_POL_NAME_TBF,
NRS_CTL_TBF_RD_RULE,
- false, &dump);
+ false, m);
if (rc == 0) {
- *eof = 1;
- rc2 += dump.td_length;
+ /**
+ * -ENOSPC means buf in the parameter m is overflow, return 0
+ * here to let upper layer function seq_read alloc a larger
+ * memory area and do this process again.
+ */
+ } else if (rc == -ENOSPC) {
+ return 0;
+
/**
* Ignore -ENODEV as the regular NRS head's policy may be in the
* ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPED state.
if (!nrs_svc_has_hp(svc))
goto no_hp;
- rc2 += snprintf(page + rc2, count - rc2, "high_priority_requests:\n");
- dump.td_length = 0;
- dump.td_buff = page + rc2;
- dump.td_size = count - rc2;
+ seq_printf(m, "high_priority_requests:\n");
rc = ptlrpc_nrs_policy_control(svc, PTLRPC_NRS_QUEUE_HP,
NRS_POL_NAME_TBF,
NRS_CTL_TBF_RD_RULE,
- false, &dump);
+ false, m);
if (rc == 0) {
- *eof = 1;
- rc2 += dump.td_length;
/**
- * Ignore -ENODEV as the high priority NRS head's policy may be
- * in the ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPED state.
+ * -ENOSPC means buf in the parameter m is overflow, return 0
+ * here to let upper layer function seq_read alloc a larger
+ * memory area and do this process again.
*/
- } else if (rc != -ENODEV) {
- return rc;
+ } else if (rc == -ENOSPC) {
+ return 0;
}
no_hp:
- return rc2 ? : rc;
+ return rc;
}
static int nrs_tbf_id_parse(struct nrs_tbf_cmd *cmd, char **val)
extern struct nrs_core nrs_core;
#define LPROCFS_WR_NRS_TBF_MAX_CMD (4096)
-static int ptlrpc_lprocfs_wr_nrs_tbf_rule(struct file *file,
- const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+ptlrpc_lprocfs_nrs_tbf_rule_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct ptlrpc_service *svc = data;
+ struct seq_file *m = file->private_data;
+ struct ptlrpc_service *svc = m->private;
char *kernbuf;
char *val;
int rc;
out:
return rc ? rc : count;
}
-
+LPROC_SEQ_FOPS(ptlrpc_lprocfs_nrs_tbf_rule);
/**
* Initializes a TBF policy's lprocfs interface for service \a svc
* \retval 0 success
* \retval != 0 error
*/
-int nrs_tbf_lprocfs_init(struct ptlrpc_service *svc)
+static int nrs_tbf_lprocfs_init(struct ptlrpc_service *svc)
{
- int rc;
struct lprocfs_vars nrs_tbf_lprocfs_vars[] = {
{ .name = "nrs_tbf_rule",
- .read_fptr = ptlrpc_lprocfs_rd_nrs_tbf_rule,
- .write_fptr = ptlrpc_lprocfs_wr_nrs_tbf_rule,
+ .fops = &ptlrpc_lprocfs_nrs_tbf_rule_fops,
.data = svc },
{ NULL }
};
if (svc->srv_procroot == NULL)
return 0;
- rc = lprocfs_add_vars(svc->srv_procroot, nrs_tbf_lprocfs_vars, NULL);
-
- return rc;
+ return lprocfs_add_vars(svc->srv_procroot, nrs_tbf_lprocfs_vars, NULL);
}
/**
*
* \param[in] svc the service
*/
-void nrs_tbf_lprocfs_fini(struct ptlrpc_service *svc)
+static void nrs_tbf_lprocfs_fini(struct ptlrpc_service *svc)
{
if (svc->srv_procroot == NULL)
return;
- lprocfs_remove_proc_entry("nrs_tbf_quantum", svc->srv_procroot);
+ lprocfs_remove_proc_entry("nrs_tbf_rule", svc->srv_procroot);
}
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
/**
* TBF policy operations
.op_req_enqueue = nrs_tbf_req_add,
.op_req_dequeue = nrs_tbf_req_del,
.op_req_stop = nrs_tbf_req_stop,
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
.op_lprocfs_init = nrs_tbf_lprocfs_init,
.op_lprocfs_fini = nrs_tbf_lprocfs_fini,
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff