void ldlm_namespace_proc_unregister(struct ldlm_namespace *ns)
{
struct proc_dir_entry *dir;
dir = lprocfs_srch(ldlm_ns_proc_dir, ldlm_ns_name(ns));
if (dir == NULL) {
CERROR("dlm namespace %s has no procfs dir?\n",
ldlm_ns_name(ns));
} else {
lprocfs_remove(&dir);
}
if (ns->ns_stats != NULL)
lprocfs_free_stats(&ns->ns_stats);
}
int ldlm_namespace_proc_register(struct ldlm_namespace *ns)
{
struct lprocfs_vars lock_vars[2];
char lock_name[MAX_STRING_SIZE + 1];
proc_dir_entry_t *ns_pde;
LASSERT(ns != NULL);
LASSERT(ns->ns_rs_hash != NULL);
if (ns->ns_proc_dir_entry != NULL) {
ns_pde = ns->ns_proc_dir_entry;
} else {
ns_pde = proc_mkdir(ldlm_ns_name(ns), ldlm_ns_proc_dir);
if (ns_pde == NULL)
return -ENOMEM;
ns->ns_proc_dir_entry = ns_pde;
}
ns->ns_stats = lprocfs_alloc_stats(LDLM_NSS_LAST, 0);
if (ns->ns_stats == NULL)
return -ENOMEM;
lprocfs_counter_init(ns->ns_stats, LDLM_NSS_LOCKS,
LPROCFS_CNTR_AVGMINMAX, "locks", "locks");
lock_name[MAX_STRING_SIZE] = '\0';
memset(lock_vars, 0, sizeof(lock_vars));
lock_vars[0].name = lock_name;
LDLM_NS_ADD_VAR("resource_count", ns, &lprocfs_ns_resources_fops);
LDLM_NS_ADD_VAR("lock_count", ns, &lprocfs_ns_locks_fops);
if (ns_is_client(ns)) {
LDLM_NS_ADD_VAR("lock_unused_count", &ns->ns_nr_unused,
&ldlm_uint_fops);
LDLM_NS_ADD_VAR("lru_size", ns, &lprocfs_lru_size_fops);
LDLM_NS_ADD_VAR("lru_max_age", &ns->ns_max_age,
&ldlm_rw_uint_fops);
LDLM_NS_ADD_VAR("early_lock_cancel", ns, &lprocfs_elc_fops);
} else {
LDLM_NS_ADD_VAR("ctime_age_limit", &ns->ns_ctime_age_limit,
&ldlm_rw_uint_fops);
LDLM_NS_ADD_VAR("lock_timeouts", &ns->ns_timeouts,
&ldlm_uint_fops);
LDLM_NS_ADD_VAR("max_nolock_bytes", &ns->ns_max_nolock_size,
&ldlm_rw_uint_fops);
LDLM_NS_ADD_VAR("contention_seconds", &ns->ns_contention_time,
&ldlm_rw_uint_fops);
LDLM_NS_ADD_VAR("contended_locks", &ns->ns_contended_locks,
&ldlm_rw_uint_fops);
LDLM_NS_ADD_VAR("max_parallel_ast", &ns->ns_max_parallel_ast,
&ldlm_rw_uint_fops);
}
return 0;
}
static void ldlm_namespace_debugfs_unregister(struct ldlm_namespace *ns)
{
if (IS_ERR_OR_NULL(ns->ns_debugfs_entry))
CERROR("dlm namespace %s has no procfs dir?\n",
ldlm_ns_name(ns));
else
ldebugfs_remove(&ns->ns_debugfs_entry);
if (ns->ns_stats)
lprocfs_free_stats(&ns->ns_stats);
}
void ldlm_namespace_proc_unregister(struct ldlm_namespace *ns)
{
if (ns->ns_proc_dir_entry == NULL)
CERROR("dlm namespace %s has no procfs dir?\n",
ldlm_ns_name(ns));
else
lprocfs_remove(&ns->ns_proc_dir_entry);
if (ns->ns_stats != NULL)
lprocfs_free_stats(&ns->ns_stats);
}
static int ldlm_namespace_debugfs_register(struct ldlm_namespace *ns)
{
struct dentry *ns_entry;
if (!IS_ERR_OR_NULL(ns->ns_debugfs_entry)) {
ns_entry = ns->ns_debugfs_entry;
} else {
ns_entry = debugfs_create_dir(ldlm_ns_name(ns),
ldlm_ns_debugfs_dir);
if (!ns_entry)
return -ENOMEM;
ns->ns_debugfs_entry = ns_entry;
}
return 0;
}
static int ldlm_namespace_sysfs_register(struct ldlm_namespace *ns)
{
int err;
ns->ns_kobj.kset = ldlm_ns_kset;
init_completion(&ns->ns_kobj_unregister);
err = kobject_init_and_add(&ns->ns_kobj, &ldlm_ns_ktype, NULL,
"%s", ldlm_ns_name(ns));
ns->ns_stats = lprocfs_alloc_stats(LDLM_NSS_LAST, 0);
if (!ns->ns_stats) {
kobject_put(&ns->ns_kobj);
return -ENOMEM;
}
lprocfs_counter_init(ns->ns_stats, LDLM_NSS_LOCKS,
LPROCFS_CNTR_AVGMINMAX, "locks", "locks");
return err;
}
static ssize_t lru_size_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
ns_kobj);
unsigned long tmp;
int lru_resize;
int err;
if (strncmp(buffer, "clear", 5) == 0) {
CDEBUG(D_DLMTRACE,
"dropping all unused locks from namespace %s\n",
ldlm_ns_name(ns));
if (ns_connect_lru_resize(ns)) {
int canceled, unused = ns->ns_nr_unused;
/* Try to cancel all @ns_nr_unused locks. */
canceled = ldlm_cancel_lru(ns, unused, 0,
LDLM_LRU_FLAG_PASSED);
if (canceled < unused) {
CDEBUG(D_DLMTRACE,
"not all requested locks are canceled, requested: %d, canceled: %d\n",
unused,
canceled);
return -EINVAL;
}
} else {
tmp = ns->ns_max_unused;
ns->ns_max_unused = 0;
ldlm_cancel_lru(ns, 0, 0, LDLM_LRU_FLAG_PASSED);
ns->ns_max_unused = tmp;
}
return count;
}
err = kstrtoul(buffer, 10, &tmp);
if (err != 0) {
CERROR("lru_size: invalid value written\n");
return -EINVAL;
}
lru_resize = (tmp == 0);
if (ns_connect_lru_resize(ns)) {
if (!lru_resize)
ns->ns_max_unused = (unsigned int)tmp;
if (tmp > ns->ns_nr_unused)
tmp = ns->ns_nr_unused;
tmp = ns->ns_nr_unused - tmp;
CDEBUG(D_DLMTRACE,
"changing namespace %s unused locks from %u to %u\n",
ldlm_ns_name(ns), ns->ns_nr_unused,
(unsigned int)tmp);
ldlm_cancel_lru(ns, tmp, LCF_ASYNC, LDLM_LRU_FLAG_PASSED);
if (!lru_resize) {
CDEBUG(D_DLMTRACE,
"disable lru_resize for namespace %s\n",
ldlm_ns_name(ns));
ns->ns_connect_flags &= ~OBD_CONNECT_LRU_RESIZE;
}
} else {
CDEBUG(D_DLMTRACE,
"changing namespace %s max_unused from %u to %u\n",
ldlm_ns_name(ns), ns->ns_max_unused,
(unsigned int)tmp);
ns->ns_max_unused = (unsigned int)tmp;
ldlm_cancel_lru(ns, 0, LCF_ASYNC, LDLM_LRU_FLAG_PASSED);
/* Make sure that LRU resize was originally supported before
* turning it on here.
*/
if (lru_resize &&
(ns->ns_orig_connect_flags & OBD_CONNECT_LRU_RESIZE)) {
CDEBUG(D_DLMTRACE,
"enable lru_resize for namespace %s\n",
ldlm_ns_name(ns));
ns->ns_connect_flags |= OBD_CONNECT_LRU_RESIZE;
}
}
return count;
}
static ssize_t lprocfs_lru_size_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
{
struct ldlm_namespace *ns = ((struct seq_file *)file->private_data)->private;
char dummy[MAX_STRING_SIZE + 1], *end;
unsigned long tmp;
int lru_resize;
dummy[MAX_STRING_SIZE] = '\0';
if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
return -EFAULT;
if (strncmp(dummy, "clear", 5) == 0) {
CDEBUG(D_DLMTRACE,
"dropping all unused locks from namespace %s\n",
ldlm_ns_name(ns));
if (ns_connect_lru_resize(ns)) {
int canceled, unused = ns->ns_nr_unused;
/* Try to cancel all @ns_nr_unused locks. */
canceled = ldlm_cancel_lru(ns, unused, 0,
LDLM_CANCEL_PASSED);
if (canceled < unused) {
CDEBUG(D_DLMTRACE,
"not all requested locks are canceled, "
"requested: %d, canceled: %d\n", unused,
canceled);
return -EINVAL;
}
} else {
tmp = ns->ns_max_unused;
ns->ns_max_unused = 0;
ldlm_cancel_lru(ns, 0, 0, LDLM_CANCEL_PASSED);
ns->ns_max_unused = tmp;
}
return count;
}
tmp = simple_strtoul(dummy, &end, 0);
if (dummy == end) {
CERROR("invalid value written\n");
return -EINVAL;
}
lru_resize = (tmp == 0);
if (ns_connect_lru_resize(ns)) {
if (!lru_resize)
ns->ns_max_unused = (unsigned int)tmp;
if (tmp > ns->ns_nr_unused)
tmp = ns->ns_nr_unused;
tmp = ns->ns_nr_unused - tmp;
CDEBUG(D_DLMTRACE,
"changing namespace %s unused locks from %u to %u\n",
ldlm_ns_name(ns), ns->ns_nr_unused,
(unsigned int)tmp);
ldlm_cancel_lru(ns, tmp, LCF_ASYNC, LDLM_CANCEL_PASSED);
if (!lru_resize) {
CDEBUG(D_DLMTRACE,
"disable lru_resize for namespace %s\n",
ldlm_ns_name(ns));
ns->ns_connect_flags &= ~OBD_CONNECT_LRU_RESIZE;
}
} else {
CDEBUG(D_DLMTRACE,
"changing namespace %s max_unused from %u to %u\n",
ldlm_ns_name(ns), ns->ns_max_unused,
(unsigned int)tmp);
ns->ns_max_unused = (unsigned int)tmp;
ldlm_cancel_lru(ns, 0, LCF_ASYNC, LDLM_CANCEL_PASSED);
/* Make sure that LRU resize was originally supported before
* turning it on here. */
if (lru_resize &&
(ns->ns_orig_connect_flags & OBD_CONNECT_LRU_RESIZE)) {
CDEBUG(D_DLMTRACE,
"enable lru_resize for namespace %s\n",
ldlm_ns_name(ns));
ns->ns_connect_flags |= OBD_CONNECT_LRU_RESIZE;
}
}
return count;
}
int ldlm_namespace_proc_register(struct ldlm_namespace *ns)
{
struct lprocfs_vars lock_vars[2];
char lock_name[MAX_STRING_SIZE + 1];
LASSERT(ns != NULL);
LASSERT(ns->ns_rs_hash != NULL);
ns->ns_stats = lprocfs_alloc_stats(LDLM_NSS_LAST, 0);
if (ns->ns_stats == NULL)
return -ENOMEM;
lprocfs_counter_init(ns->ns_stats, LDLM_NSS_LOCKS,
LPROCFS_CNTR_AVGMINMAX, "locks", "locks");
lock_name[MAX_STRING_SIZE] = '\0';
memset(lock_vars, 0, sizeof(lock_vars));
lock_vars[0].name = lock_name;
snprintf(lock_name, MAX_STRING_SIZE, "%s/resource_count",
ldlm_ns_name(ns));
lock_vars[0].data = ns;
lock_vars[0].read_fptr = lprocfs_rd_ns_resources;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/lock_count",
ldlm_ns_name(ns));
lock_vars[0].data = ns;
lock_vars[0].read_fptr = lprocfs_rd_ns_locks;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
if (ns_is_client(ns)) {
snprintf(lock_name, MAX_STRING_SIZE, "%s/lock_unused_count",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_nr_unused;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/lru_size",
ldlm_ns_name(ns));
lock_vars[0].data = ns;
lock_vars[0].read_fptr = lprocfs_rd_lru_size;
lock_vars[0].write_fptr = lprocfs_wr_lru_size;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/lru_max_age",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_max_age;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/early_lock_cancel",
ldlm_ns_name(ns));
lock_vars[0].data = ns;
lock_vars[0].read_fptr = lprocfs_rd_elc;
lock_vars[0].write_fptr = lprocfs_wr_elc;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
} else {
snprintf(lock_name, MAX_STRING_SIZE, "%s/ctime_age_limit",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_ctime_age_limit;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/lock_timeouts",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_timeouts;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/max_nolock_bytes",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_max_nolock_size;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/contention_seconds",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_contention_time;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/contended_locks",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_contended_locks;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
snprintf(lock_name, MAX_STRING_SIZE, "%s/max_parallel_ast",
ldlm_ns_name(ns));
lock_vars[0].data = &ns->ns_max_parallel_ast;
lock_vars[0].read_fptr = lprocfs_rd_uint;
lock_vars[0].write_fptr = lprocfs_wr_uint;
lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
}
return 0;
}
