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|
/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program 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 version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/obdclass/lprocfs_status.c
*
* Author: Hariharan Thantry <thantry@users.sourceforge.net>
*/
#define DEBUG_SUBSYSTEM S_CLASS
#include "../include/obd_class.h"
#include "../include/lprocfs_status.h"
#include "../include/lustre/lustre_idl.h"
#include <linux/seq_file.h>
#include <linux/ctype.h>
static const char * const obd_connect_names[] = {
"read_only",
"lov_index",
"unused",
"write_grant",
"server_lock",
"version",
"request_portal",
"acl",
"xattr",
"create_on_write",
"truncate_lock",
"initial_transno",
"inode_bit_locks",
"join_file(obsolete)",
"getattr_by_fid",
"no_oh_for_devices",
"remote_client",
"remote_client_by_force",
"max_byte_per_rpc",
"64bit_qdata",
"mds_capability",
"oss_capability",
"early_lock_cancel",
"som",
"adaptive_timeouts",
"lru_resize",
"mds_mds_connection",
"real_conn",
"change_qunit_size",
"alt_checksum_algorithm",
"fid_is_enabled",
"version_recovery",
"pools",
"grant_shrink",
"skip_orphan",
"large_ea",
"full20",
"layout_lock",
"64bithash",
"object_max_bytes",
"imp_recov",
"jobstats",
"umask",
"einprogress",
"grant_param",
"flock_owner",
"lvb_type",
"nanoseconds_times",
"lightweight_conn",
"short_io",
"pingless",
"flock_deadlock",
"disp_stripe",
"unknown",
NULL
};
int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
{
__u64 mask = 1;
int i, ret = 0;
for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
if (flags & mask)
ret += snprintf(page + ret, count - ret, "%s%s",
ret ? sep : "", obd_connect_names[i]);
}
if (flags & ~(mask - 1))
ret += snprintf(page + ret, count - ret,
"%sunknown flags %#llx",
ret ? sep : "", flags & ~(mask - 1));
return ret;
}
EXPORT_SYMBOL(obd_connect_flags2str);
int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
int mult)
{
long decimal_val, frac_val;
int prtn;
if (count < 10)
return -EINVAL;
decimal_val = val / mult;
prtn = snprintf(buffer, count, "%ld", decimal_val);
frac_val = val % mult;
if (prtn < (count - 4) && frac_val > 0) {
long temp_frac;
int i, temp_mult = 1, frac_bits = 0;
temp_frac = frac_val * 10;
buffer[prtn++] = '.';
while (frac_bits < 2 && (temp_frac / mult) < 1) {
/* only reserved 2 bits fraction */
buffer[prtn++] = '0';
temp_frac *= 10;
frac_bits++;
}
/*
* Need to think these cases :
* 1. #echo x.00 > /proc/xxx output result : x
* 2. #echo x.0x > /proc/xxx output result : x.0x
* 3. #echo x.x0 > /proc/xxx output result : x.x
* 4. #echo x.xx > /proc/xxx output result : x.xx
* Only reserved 2 bits fraction.
*/
for (i = 0; i < (5 - prtn); i++)
temp_mult *= 10;
frac_bits = min((int)count - prtn, 3 - frac_bits);
prtn += snprintf(buffer + prtn, frac_bits, "%ld",
frac_val * temp_mult / mult);
prtn--;
while (buffer[prtn] < '1' || buffer[prtn] > '9') {
prtn--;
if (buffer[prtn] == '.') {
prtn--;
break;
}
}
prtn++;
}
buffer[prtn++] = '\n';
return prtn;
}
EXPORT_SYMBOL(lprocfs_read_frac_helper);
int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
int *val, int mult)
{
char kernbuf[20], *end, *pbuf;
if (count > (sizeof(kernbuf) - 1))
return -EINVAL;
if (copy_from_user(kernbuf, buffer, count))
return -EFAULT;
kernbuf[count] = '\0';
pbuf = kernbuf;
if (*pbuf == '-') {
mult = -mult;
pbuf++;
}
*val = (int)simple_strtoul(pbuf, &end, 10) * mult;
if (pbuf == end)
return -EINVAL;
if (end != NULL && *end == '.') {
int temp_val, pow = 1;
int i;
pbuf = end + 1;
if (strlen(pbuf) > 5)
pbuf[5] = '\0'; /*only allow 5bits fractional*/
temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
if (pbuf < end) {
for (i = 0; i < (end - pbuf); i++)
pow *= 10;
*val += temp_val / pow;
}
}
return 0;
}
EXPORT_SYMBOL(lprocfs_write_frac_helper);
#if defined (CONFIG_PROC_FS)
static int lprocfs_no_percpu_stats;
module_param(lprocfs_no_percpu_stats, int, 0644);
MODULE_PARM_DESC(lprocfs_no_percpu_stats, "Do not alloc percpu data for lprocfs stats");
#define MAX_STRING_SIZE 128
int lprocfs_single_release(struct inode *inode, struct file *file)
{
return single_release(inode, file);
}
EXPORT_SYMBOL(lprocfs_single_release);
int lprocfs_seq_release(struct inode *inode, struct file *file)
{
return seq_release(inode, file);
}
EXPORT_SYMBOL(lprocfs_seq_release);
/* lprocfs API calls */
struct proc_dir_entry *lprocfs_add_simple(struct proc_dir_entry *root,
char *name, void *data,
struct file_operations *fops)
{
struct proc_dir_entry *proc;
umode_t mode = 0;
if (root == NULL || name == NULL || fops == NULL)
return ERR_PTR(-EINVAL);
if (fops->read)
mode = 0444;
if (fops->write)
mode |= 0200;
proc = proc_create_data(name, mode, root, fops, data);
if (!proc) {
CERROR("LprocFS: No memory to create /proc entry %s", name);
return ERR_PTR(-ENOMEM);
}
return proc;
}
EXPORT_SYMBOL(lprocfs_add_simple);
struct proc_dir_entry *lprocfs_add_symlink(const char *name,
struct proc_dir_entry *parent, const char *format, ...)
{
struct proc_dir_entry *entry;
char *dest;
va_list ap;
if (parent == NULL || format == NULL)
return NULL;
dest = kzalloc(MAX_STRING_SIZE + 1, GFP_KERNEL);
if (dest == NULL)
return NULL;
va_start(ap, format);
vsnprintf(dest, MAX_STRING_SIZE, format, ap);
va_end(ap);
entry = proc_symlink(name, parent, dest);
if (entry == NULL)
CERROR("LprocFS: Could not create symbolic link from %s to %s",
name, dest);
kfree(dest);
return entry;
}
EXPORT_SYMBOL(lprocfs_add_symlink);
static struct file_operations lprocfs_generic_fops = { };
int ldebugfs_add_vars(struct dentry *parent,
struct lprocfs_vars *list,
void *data)
{
if (IS_ERR_OR_NULL(parent) || IS_ERR_OR_NULL(list))
return -EINVAL;
while (list->name != NULL) {
struct dentry *entry;
umode_t mode = 0;
if (list->proc_mode != 0000) {
mode = list->proc_mode;
} else if (list->fops) {
if (list->fops->read)
mode = 0444;
if (list->fops->write)
mode |= 0200;
}
entry = debugfs_create_file(list->name, mode, parent,
list->data ?: data,
list->fops ?: &lprocfs_generic_fops
);
if (IS_ERR_OR_NULL(entry))
return entry ? PTR_ERR(entry) : -ENOMEM;
list++;
}
return 0;
}
EXPORT_SYMBOL(ldebugfs_add_vars);
/**
* Add /proc entries.
*
* \param root [in] The parent proc entry on which new entry will be added.
* \param list [in] Array of proc entries to be added.
* \param data [in] The argument to be passed when entries read/write routines
* are called through /proc file.
*
* \retval 0 on success
* < 0 on error
*/
int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
void *data)
{
if (root == NULL || list == NULL)
return -EINVAL;
while (list->name != NULL) {
struct proc_dir_entry *proc;
umode_t mode = 0;
if (list->proc_mode != 0000) {
mode = list->proc_mode;
} else if (list->fops) {
if (list->fops->read)
mode = 0444;
if (list->fops->write)
mode |= 0200;
}
proc = proc_create_data(list->name, mode, root,
list->fops ?: &lprocfs_generic_fops,
list->data ?: data);
if (proc == NULL)
return -ENOMEM;
list++;
}
return 0;
}
EXPORT_SYMBOL(lprocfs_add_vars);
void ldebugfs_remove(struct dentry **entryp)
{
debugfs_remove(*entryp);
*entryp = NULL;
}
EXPORT_SYMBOL(ldebugfs_remove);
void lprocfs_remove(struct proc_dir_entry **rooth)
{
proc_remove(*rooth);
*rooth = NULL;
}
EXPORT_SYMBOL(lprocfs_remove);
void lprocfs_remove_proc_entry(const char *name, struct proc_dir_entry *parent)
{
LASSERT(parent != NULL);
remove_proc_entry(name, parent);
}
EXPORT_SYMBOL(lprocfs_remove_proc_entry);
struct dentry *ldebugfs_register(const char *name,
struct dentry *parent,
struct lprocfs_vars *list, void *data)
{
struct dentry *entry;
entry = debugfs_create_dir(name, parent);
if (IS_ERR_OR_NULL(entry)) {
entry = entry ?: ERR_PTR(-ENOMEM);
goto out;
}
if (!IS_ERR_OR_NULL(list)) {
int rc;
rc = ldebugfs_add_vars(entry, list, data);
if (rc != 0) {
debugfs_remove(entry);
entry = ERR_PTR(rc);
}
}
out:
return entry;
}
EXPORT_SYMBOL(ldebugfs_register);
struct proc_dir_entry *lprocfs_register(const char *name,
struct proc_dir_entry *parent,
struct lprocfs_vars *list, void *data)
{
struct proc_dir_entry *entry;
entry = proc_mkdir(name, parent);
if (entry == NULL) {
entry = ERR_PTR(-ENOMEM);
goto out;
}
if (list != NULL) {
int rc = lprocfs_add_vars(entry, list, data);
if (rc != 0) {
lprocfs_remove(&entry);
entry = ERR_PTR(rc);
}
}
out:
return entry;
}
EXPORT_SYMBOL(lprocfs_register);
/* Generic callbacks */
int lprocfs_rd_uint(struct seq_file *m, void *data)
{
seq_printf(m, "%u\n", *(unsigned int *)data);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_uint);
int lprocfs_wr_uint(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
unsigned *p = data;
char dummy[MAX_STRING_SIZE + 1], *end;
unsigned long tmp;
dummy[MAX_STRING_SIZE] = '\0';
if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
return -EFAULT;
tmp = simple_strtoul(dummy, &end, 0);
if (dummy == end)
return -EINVAL;
*p = (unsigned int)tmp;
return count;
}
EXPORT_SYMBOL(lprocfs_wr_uint);
int lprocfs_rd_u64(struct seq_file *m, void *data)
{
seq_printf(m, "%llu\n", *(__u64 *)data);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_u64);
int lprocfs_rd_atomic(struct seq_file *m, void *data)
{
atomic_t *atom = data;
LASSERT(atom != NULL);
seq_printf(m, "%d\n", atomic_read(atom));
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_atomic);
int lprocfs_wr_atomic(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
atomic_t *atm = data;
int val = 0;
int rc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc < 0)
return rc;
if (val <= 0)
return -ERANGE;
atomic_set(atm, val);
return count;
}
EXPORT_SYMBOL(lprocfs_wr_atomic);
int lprocfs_rd_uuid(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
LASSERT(obd != NULL);
seq_printf(m, "%s\n", obd->obd_uuid.uuid);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_uuid);
int lprocfs_rd_name(struct seq_file *m, void *data)
{
struct obd_device *dev = data;
LASSERT(dev != NULL);
seq_printf(m, "%s\n", dev->obd_name);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_name);
int lprocfs_rd_blksize(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
seq_printf(m, "%u\n", osfs.os_bsize);
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_blksize);
int lprocfs_rd_kbytestotal(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_blocks;
while (blk_size >>= 1)
result <<= 1;
seq_printf(m, "%llu\n", result);
}
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
int lprocfs_rd_kbytesfree(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_bfree;
while (blk_size >>= 1)
result <<= 1;
seq_printf(m, "%llu\n", result);
}
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
int lprocfs_rd_kbytesavail(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_bavail;
while (blk_size >>= 1)
result <<= 1;
seq_printf(m, "%llu\n", result);
}
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
int lprocfs_rd_filestotal(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
seq_printf(m, "%llu\n", osfs.os_files);
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_filestotal);
int lprocfs_rd_filesfree(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_statfs osfs;
int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
seq_printf(m, "%llu\n", osfs.os_ffree);
return rc;
}
EXPORT_SYMBOL(lprocfs_rd_filesfree);
int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct obd_import *imp;
char *imp_state_name = NULL;
LASSERT(obd != NULL);
LPROCFS_CLIMP_CHECK(obd);
imp = obd->u.cli.cl_import;
imp_state_name = ptlrpc_import_state_name(imp->imp_state);
seq_printf(m, "%s\t%s%s\n",
obd2cli_tgt(obd), imp_state_name,
imp->imp_deactive ? "\tDEACTIVATED" : "");
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_server_uuid);
int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
struct ptlrpc_connection *conn;
LASSERT(obd != NULL);
LPROCFS_CLIMP_CHECK(obd);
conn = obd->u.cli.cl_import->imp_connection;
if (conn && obd->u.cli.cl_import)
seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
else
seq_puts(m, "<none>\n");
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
/** add up per-cpu counters */
void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
struct lprocfs_counter *cnt)
{
unsigned int num_entry;
struct lprocfs_counter *percpu_cntr;
int i;
unsigned long flags = 0;
memset(cnt, 0, sizeof(*cnt));
if (stats == NULL) {
/* set count to 1 to avoid divide-by-zero errs in callers */
cnt->lc_count = 1;
return;
}
cnt->lc_min = LC_MIN_INIT;
num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_entry; i++) {
if (stats->ls_percpu[i] == NULL)
continue;
percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
cnt->lc_count += percpu_cntr->lc_count;
cnt->lc_sum += percpu_cntr->lc_sum;
if (percpu_cntr->lc_min < cnt->lc_min)
cnt->lc_min = percpu_cntr->lc_min;
if (percpu_cntr->lc_max > cnt->lc_max)
cnt->lc_max = percpu_cntr->lc_max;
cnt->lc_sumsquare += percpu_cntr->lc_sumsquare;
}
lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
}
EXPORT_SYMBOL(lprocfs_stats_collect);
/**
* Append a space separated list of current set flags to str.
*/
#define flag2str(flag, first) \
do { \
if (imp->imp_##flag) \
seq_printf(m, "%s" #flag, first ? "" : ", "); \
} while (0)
static int obd_import_flags2str(struct obd_import *imp, struct seq_file *m)
{
bool first = true;
if (imp->imp_obd->obd_no_recov) {
seq_printf(m, "no_recov");
first = false;
}
flag2str(invalid, first);
first = false;
flag2str(deactive, first);
flag2str(replayable, first);
flag2str(pingable, first);
return 0;
}
#undef flags2str
static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep)
{
__u64 mask = 1;
int i;
bool first = true;
for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
if (flags & mask) {
seq_printf(m, "%s%s",
first ? sep : "", obd_connect_names[i]);
first = false;
}
}
if (flags & ~(mask - 1))
seq_printf(m, "%sunknown flags %#llx",
first ? sep : "", flags & ~(mask - 1));
}
int lprocfs_rd_import(struct seq_file *m, void *data)
{
struct lprocfs_counter ret;
struct lprocfs_counter_header *header;
struct obd_device *obd = (struct obd_device *)data;
struct obd_import *imp;
struct obd_import_conn *conn;
int j;
int k;
int rw = 0;
LASSERT(obd != NULL);
LPROCFS_CLIMP_CHECK(obd);
imp = obd->u.cli.cl_import;
seq_printf(m,
"import:\n"
" name: %s\n"
" target: %s\n"
" state: %s\n"
" instance: %u\n"
" connect_flags: [",
obd->obd_name,
obd2cli_tgt(obd),
ptlrpc_import_state_name(imp->imp_state),
imp->imp_connect_data.ocd_instance);
obd_connect_seq_flags2str(m, imp->imp_connect_data.ocd_connect_flags, ", ");
seq_printf(m,
"]\n"
" import_flags: [");
obd_import_flags2str(imp, m);
seq_printf(m,
"]\n"
" connection:\n"
" failover_nids: [");
spin_lock(&imp->imp_lock);
j = 0;
list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
seq_printf(m, "%s%s", j ? ", " : "",
libcfs_nid2str(conn->oic_conn->c_peer.nid));
j++;
}
seq_printf(m,
"]\n"
" current_connection: %s\n"
" connection_attempts: %u\n"
" generation: %u\n"
" in-progress_invalidations: %u\n",
imp->imp_connection == NULL ? "<none>" :
libcfs_nid2str(imp->imp_connection->c_peer.nid),
imp->imp_conn_cnt,
imp->imp_generation,
atomic_read(&imp->imp_inval_count));
spin_unlock(&imp->imp_lock);
if (obd->obd_svc_stats == NULL)
goto out_climp;
header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
lprocfs_stats_collect(obd->obd_svc_stats, PTLRPC_REQWAIT_CNTR, &ret);
if (ret.lc_count != 0) {
/* first argument to do_div MUST be __u64 */
__u64 sum = ret.lc_sum;
do_div(sum, ret.lc_count);
ret.lc_sum = sum;
} else
ret.lc_sum = 0;
seq_printf(m,
" rpcs:\n"
" inflight: %u\n"
" unregistering: %u\n"
" timeouts: %u\n"
" avg_waittime: %llu %s\n",
atomic_read(&imp->imp_inflight),
atomic_read(&imp->imp_unregistering),
atomic_read(&imp->imp_timeouts),
ret.lc_sum, header->lc_units);
k = 0;
for (j = 0; j < IMP_AT_MAX_PORTALS; j++) {
if (imp->imp_at.iat_portal[j] == 0)
break;
k = max_t(unsigned int, k,
at_get(&imp->imp_at.iat_service_estimate[j]));
}
seq_printf(m,
" service_estimates:\n"
" services: %u sec\n"
" network: %u sec\n",
k,
at_get(&imp->imp_at.iat_net_latency));
seq_printf(m,
" transactions:\n"
" last_replay: %llu\n"
" peer_committed: %llu\n"
" last_checked: %llu\n",
imp->imp_last_replay_transno,
imp->imp_peer_committed_transno,
imp->imp_last_transno_checked);
/* avg data rates */
for (rw = 0; rw <= 1; rw++) {
lprocfs_stats_collect(obd->obd_svc_stats,
PTLRPC_LAST_CNTR + BRW_READ_BYTES + rw,
&ret);
if (ret.lc_sum > 0 && ret.lc_count > 0) {
/* first argument to do_div MUST be __u64 */
__u64 sum = ret.lc_sum;
do_div(sum, ret.lc_count);
ret.lc_sum = sum;
seq_printf(m,
" %s_data_averages:\n"
" bytes_per_rpc: %llu\n",
rw ? "write" : "read",
ret.lc_sum);
}
k = (int)ret.lc_sum;
j = opcode_offset(OST_READ + rw) + EXTRA_MAX_OPCODES;
header = &obd->obd_svc_stats->ls_cnt_header[j];
lprocfs_stats_collect(obd->obd_svc_stats, j, &ret);
if (ret.lc_sum > 0 && ret.lc_count != 0) {
/* first argument to do_div MUST be __u64 */
__u64 sum = ret.lc_sum;
do_div(sum, ret.lc_count);
ret.lc_sum = sum;
seq_printf(m,
" %s_per_rpc: %llu\n",
header->lc_units, ret.lc_sum);
j = (int)ret.lc_sum;
if (j > 0)
seq_printf(m,
" MB_per_sec: %u.%.02u\n",
k / j, (100 * k / j) % 100);
}
}
out_climp:
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_import);
int lprocfs_rd_state(struct seq_file *m, void *data)
{
struct obd_device *obd = (struct obd_device *)data;
struct obd_import *imp;
int j, k;
LASSERT(obd != NULL);
LPROCFS_CLIMP_CHECK(obd);
imp = obd->u.cli.cl_import;
seq_printf(m, "current_state: %s\n",
ptlrpc_import_state_name(imp->imp_state));
seq_printf(m, "state_history:\n");
k = imp->imp_state_hist_idx;
for (j = 0; j < IMP_STATE_HIST_LEN; j++) {
struct import_state_hist *ish =
&imp->imp_state_hist[(k + j) % IMP_STATE_HIST_LEN];
if (ish->ish_state == 0)
continue;
seq_printf(m, " - ["CFS_TIME_T", %s]\n",
ish->ish_time,
ptlrpc_import_state_name(ish->ish_state));
}
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_state);
int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at)
{
int i;
for (i = 0; i < AT_BINS; i++)
seq_printf(m, "%3u ", at->at_hist[i]);
seq_printf(m, "\n");
return 0;
}
EXPORT_SYMBOL(lprocfs_at_hist_helper);
/* See also ptlrpc_lprocfs_rd_timeouts */
int lprocfs_rd_timeouts(struct seq_file *m, void *data)
{
struct obd_device *obd = (struct obd_device *)data;
struct obd_import *imp;
unsigned int cur, worst;
time_t now, worstt;
struct dhms ts;
int i;
LASSERT(obd != NULL);
LPROCFS_CLIMP_CHECK(obd);
imp = obd->u.cli.cl_import;
now = get_seconds();
/* Some network health info for kicks */
s2dhms(&ts, now - imp->imp_last_reply_time);
seq_printf(m, "%-10s : %ld, "DHMS_FMT" ago\n",
"last reply", imp->imp_last_reply_time, DHMS_VARS(&ts));
cur = at_get(&imp->imp_at.iat_net_latency);
worst = imp->imp_at.iat_net_latency.at_worst_ever;
worstt = imp->imp_at.iat_net_latency.at_worst_time;
s2dhms(&ts, now - worstt);
seq_printf(m, "%-10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
"network", cur, worst, worstt, DHMS_VARS(&ts));
lprocfs_at_hist_helper(m, &imp->imp_at.iat_net_latency);
for (i = 0; i < IMP_AT_MAX_PORTALS; i++) {
if (imp->imp_at.iat_portal[i] == 0)
break;
cur = at_get(&imp->imp_at.iat_service_estimate[i]);
worst = imp->imp_at.iat_service_estimate[i].at_worst_ever;
worstt = imp->imp_at.iat_service_estimate[i].at_worst_time;
s2dhms(&ts, now - worstt);
seq_printf(m, "portal %-2d : cur %3u worst %3u (at %ld, "
DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
cur, worst, worstt, DHMS_VARS(&ts));
lprocfs_at_hist_helper(m, &imp->imp_at.iat_service_estimate[i]);
}
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_timeouts);
int lprocfs_rd_connect_flags(struct seq_file *m, void *data)
{
struct obd_device *obd = data;
__u64 flags;
LPROCFS_CLIMP_CHECK(obd);
flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
seq_printf(m, "flags=%#llx\n", flags);
obd_connect_seq_flags2str(m, flags, "\n");
seq_printf(m, "\n");
LPROCFS_CLIMP_EXIT(obd);
return 0;
}
EXPORT_SYMBOL(lprocfs_rd_connect_flags);
static struct attribute *obd_def_attrs[] = {
NULL,
};
static void obd_sysfs_release(struct kobject *kobj)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kobj);
complete(&obd->obd_kobj_unregister);
}
static struct kobj_type obd_ktype = {
.default_attrs = obd_def_attrs,
.sysfs_ops = &lustre_sysfs_ops,
.release = obd_sysfs_release,
};
int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list,
struct attribute_group *attrs)
{
int rc = 0;
LASSERT(obd != NULL);
LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
LASSERT(obd->obd_type->typ_procroot != NULL);
init_completion(&obd->obd_kobj_unregister);
rc = kobject_init_and_add(&obd->obd_kobj, &obd_ktype,
obd->obd_type->typ_kobj,
"%s", obd->obd_name);
if (rc)
return rc;
if (attrs) {
rc = sysfs_create_group(&obd->obd_kobj, attrs);
if (rc) {
kobject_put(&obd->obd_kobj);
return rc;
}
}
obd->obd_proc_entry = lprocfs_register(obd->obd_name,
obd->obd_type->typ_procroot,
list, obd);
if (IS_ERR(obd->obd_proc_entry)) {
kobject_put(&obd->obd_kobj);
rc = PTR_ERR(obd->obd_proc_entry);
CERROR("error %d setting up lprocfs for %s\n",
rc, obd->obd_name);
obd->obd_proc_entry = NULL;
}
return rc;
}
EXPORT_SYMBOL(lprocfs_obd_setup);
int lprocfs_obd_cleanup(struct obd_device *obd)
{
if (!obd)
return -EINVAL;
if (obd->obd_proc_exports_entry) {
/* Should be no exports left */
lprocfs_remove(&obd->obd_proc_exports_entry);
obd->obd_proc_exports_entry = NULL;
}
if (obd->obd_proc_entry) {
lprocfs_remove(&obd->obd_proc_entry);
obd->obd_proc_entry = NULL;
}
kobject_put(&obd->obd_kobj);
wait_for_completion(&obd->obd_kobj_unregister);
return 0;
}
EXPORT_SYMBOL(lprocfs_obd_cleanup);
static void lprocfs_free_client_stats(struct nid_stat *client_stat)
{
CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
client_stat->nid_proc, client_stat->nid_stats);
LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
"nid %s:count %d\n", libcfs_nid2str(client_stat->nid),
atomic_read(&client_stat->nid_exp_ref_count));
if (client_stat->nid_proc)
lprocfs_remove(&client_stat->nid_proc);
if (client_stat->nid_stats)
lprocfs_free_stats(&client_stat->nid_stats);
if (client_stat->nid_ldlm_stats)
lprocfs_free_stats(&client_stat->nid_ldlm_stats);
kfree(client_stat);
return;
}
void lprocfs_free_per_client_stats(struct obd_device *obd)
{
struct cfs_hash *hash = obd->obd_nid_stats_hash;
struct nid_stat *stat;
/* we need extra list - because hash_exit called to early */
/* not need locking because all clients is died */
while (!list_empty(&obd->obd_nid_stats)) {
stat = list_entry(obd->obd_nid_stats.next,
struct nid_stat, nid_list);
list_del_init(&stat->nid_list);
cfs_hash_del(hash, &stat->nid, &stat->nid_hash);
lprocfs_free_client_stats(stat);
}
}
EXPORT_SYMBOL(lprocfs_free_per_client_stats);
int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
{
struct lprocfs_counter *cntr;
unsigned int percpusize;
int rc = -ENOMEM;
unsigned long flags = 0;
int i;
LASSERT(stats->ls_percpu[cpuid] == NULL);
LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
percpusize = lprocfs_stats_counter_size(stats);
LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
if (stats->ls_percpu[cpuid] != NULL) {
rc = 0;
if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
spin_lock_irqsave(&stats->ls_lock, flags);
else
spin_lock(&stats->ls_lock);
if (stats->ls_biggest_alloc_num <= cpuid)
stats->ls_biggest_alloc_num = cpuid + 1;
if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
spin_unlock_irqrestore(&stats->ls_lock, flags);
else
spin_unlock(&stats->ls_lock);
}
/* initialize the ls_percpu[cpuid] non-zero counter */
for (i = 0; i < stats->ls_num; ++i) {
cntr = lprocfs_stats_counter_get(stats, cpuid, i);
cntr->lc_min = LC_MIN_INIT;
}
}
return rc;
}
EXPORT_SYMBOL(lprocfs_stats_alloc_one);
struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
enum lprocfs_stats_flags flags)
{
struct lprocfs_stats *stats;
unsigned int num_entry;
unsigned int percpusize = 0;
int i;
if (num == 0)
return NULL;
if (lprocfs_no_percpu_stats != 0)
flags |= LPROCFS_STATS_FLAG_NOPERCPU;
if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
num_entry = 1;
else
num_entry = num_possible_cpus();
/* alloc percpu pointers for all possible cpu slots */
LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
if (stats == NULL)
return NULL;
stats->ls_num = num;
stats->ls_flags = flags;
spin_lock_init(&stats->ls_lock);
/* alloc num of counter headers */
LIBCFS_ALLOC(stats->ls_cnt_header,
stats->ls_num * sizeof(struct lprocfs_counter_header));
if (stats->ls_cnt_header == NULL)
goto fail;
if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) {
/* contains only one set counters */
percpusize = lprocfs_stats_counter_size(stats);
LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize);
if (stats->ls_percpu[0] == NULL)
goto fail;
stats->ls_biggest_alloc_num = 1;
} else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) {
/* alloc all percpu data, currently only obd_memory use this */
for (i = 0; i < num_entry; ++i)
if (lprocfs_stats_alloc_one(stats, i) < 0)
goto fail;
}
return stats;
fail:
lprocfs_free_stats(&stats);
return NULL;
}
EXPORT_SYMBOL(lprocfs_alloc_stats);
void lprocfs_free_stats(struct lprocfs_stats **statsh)
{
struct lprocfs_stats *stats = *statsh;
unsigned int num_entry;
unsigned int percpusize;
unsigned int i;
if (stats == NULL || stats->ls_num == 0)
return;
*statsh = NULL;
if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
num_entry = 1;
else
num_entry = num_possible_cpus();
percpusize = lprocfs_stats_counter_size(stats);
for (i = 0; i < num_entry; i++)
if (stats->ls_percpu[i] != NULL)
LIBCFS_FREE(stats->ls_percpu[i], percpusize);
if (stats->ls_cnt_header != NULL)
LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num *
sizeof(struct lprocfs_counter_header));
LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
}
EXPORT_SYMBOL(lprocfs_free_stats);
void lprocfs_clear_stats(struct lprocfs_stats *stats)
{
struct lprocfs_counter *percpu_cntr;
int i;
int j;
unsigned int num_entry;
unsigned long flags = 0;
num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_entry; i++) {
if (stats->ls_percpu[i] == NULL)
continue;
for (j = 0; j < stats->ls_num; j++) {
percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
percpu_cntr->lc_count = 0;
percpu_cntr->lc_min = LC_MIN_INIT;
percpu_cntr->lc_max = 0;
percpu_cntr->lc_sumsquare = 0;
percpu_cntr->lc_sum = 0;
if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
percpu_cntr->lc_sum_irq = 0;
}
}
lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
}
EXPORT_SYMBOL(lprocfs_clear_stats);
static ssize_t lprocfs_stats_seq_write(struct file *file,
const char __user *buf,
size_t len, loff_t *off)
{
struct seq_file *seq = file->private_data;
struct lprocfs_stats *stats = seq->private;
lprocfs_clear_stats(stats);
return len;
}
static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
{
struct lprocfs_stats *stats = p->private;
return (*pos < stats->ls_num) ? pos : NULL;
}
static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
{
}
static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
{
(*pos)++;
return lprocfs_stats_seq_start(p, pos);
}
/* seq file export of one lprocfs counter */
static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
{
struct lprocfs_stats *stats = p->private;
struct lprocfs_counter_header *hdr;
struct lprocfs_counter ctr;
int idx = *(loff_t *)v;
if (idx == 0) {
struct timeval now;
do_gettimeofday(&now);
seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
"snapshot_time",
now.tv_sec, (unsigned long)now.tv_usec);
}
hdr = &stats->ls_cnt_header[idx];
lprocfs_stats_collect(stats, idx, &ctr);
if (ctr.lc_count != 0) {
seq_printf(p, "%-25s %lld samples [%s]",
hdr->lc_name, ctr.lc_count, hdr->lc_units);
if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) &&
(ctr.lc_count > 0)) {
seq_printf(p, " %lld %lld %lld",
ctr.lc_min, ctr.lc_max, ctr.lc_sum);
if (hdr->lc_config & LPROCFS_CNTR_STDDEV)
seq_printf(p, " %lld", ctr.lc_sumsquare);
}
seq_putc(p, '\n');
}
return 0;
}
static const struct seq_operations lprocfs_stats_seq_sops = {
.start = lprocfs_stats_seq_start,
.stop = lprocfs_stats_seq_stop,
.next = lprocfs_stats_seq_next,
.show = lprocfs_stats_seq_show,
};
static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc;
rc = seq_open(file, &lprocfs_stats_seq_sops);
if (rc)
return rc;
seq = file->private_data;
seq->private = inode->i_private ?: PDE_DATA(inode);
return 0;
}
struct file_operations lprocfs_stats_seq_fops = {
.owner = THIS_MODULE,
.open = lprocfs_stats_seq_open,
.read = seq_read,
.write = lprocfs_stats_seq_write,
.llseek = seq_lseek,
.release = lprocfs_seq_release,
};
int ldebugfs_register_stats(struct dentry *parent, const char *name,
struct lprocfs_stats *stats)
{
struct dentry *entry;
LASSERT(!IS_ERR_OR_NULL(parent));
entry = debugfs_create_file(name, 0644, parent, stats,
&lprocfs_stats_seq_fops);
if (IS_ERR_OR_NULL(entry))
return entry ? PTR_ERR(entry) : -ENOMEM;
return 0;
}
EXPORT_SYMBOL(ldebugfs_register_stats);
int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
struct lprocfs_stats *stats)
{
struct proc_dir_entry *entry;
LASSERT(root != NULL);
entry = proc_create_data(name, 0644, root,
&lprocfs_stats_seq_fops, stats);
if (entry == NULL)
return -ENOMEM;
return 0;
}
EXPORT_SYMBOL(lprocfs_register_stats);
void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
unsigned conf, const char *name, const char *units)
{
struct lprocfs_counter_header *header;
struct lprocfs_counter *percpu_cntr;
unsigned long flags = 0;
unsigned int i;
unsigned int num_cpu;
LASSERT(stats != NULL);
header = &stats->ls_cnt_header[index];
LASSERTF(header != NULL, "Failed to allocate stats header:[%d]%s/%s\n",
index, name, units);
header->lc_config = conf;
header->lc_name = name;
header->lc_units = units;
num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
for (i = 0; i < num_cpu; ++i) {
if (stats->ls_percpu[i] == NULL)
continue;
percpu_cntr = lprocfs_stats_counter_get(stats, i, index);
percpu_cntr->lc_count = 0;
percpu_cntr->lc_min = LC_MIN_INIT;
percpu_cntr->lc_max = 0;
percpu_cntr->lc_sumsquare = 0;
percpu_cntr->lc_sum = 0;
if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
percpu_cntr->lc_sum_irq = 0;
}
lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
}
EXPORT_SYMBOL(lprocfs_counter_init);
#define LPROCFS_OBD_OP_INIT(base, stats, op) \
do { \
unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
LASSERT(coffset < stats->ls_num); \
lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
} while (0)
void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
{
LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, getref);
LPROCFS_OBD_OP_INIT(num_private_stats, stats, putref);
}
EXPORT_SYMBOL(lprocfs_init_ops_stats);
int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
{
struct lprocfs_stats *stats;
unsigned int num_stats;
int rc, i;
LASSERT(obd->obd_stats == NULL);
LASSERT(obd->obd_proc_entry != NULL);
LASSERT(obd->obd_cntr_base == 0);
num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
num_private_stats - 1 /* o_owner */;
stats = lprocfs_alloc_stats(num_stats, 0);
if (stats == NULL)
return -ENOMEM;
lprocfs_init_ops_stats(num_private_stats, stats);
for (i = num_private_stats; i < num_stats; i++) {
/* If this LBUGs, it is likely that an obd
* operation was added to struct obd_ops in
* <obd.h>, and that the corresponding line item
* LPROCFS_OBD_OP_INIT(.., .., opname)
* is missing from the list above. */
LASSERTF(stats->ls_cnt_header[i].lc_name != NULL,
"Missing obd_stat initializer obd_op operation at offset %d.\n",
i - num_private_stats);
}
rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
if (rc < 0) {
lprocfs_free_stats(&stats);
} else {
obd->obd_stats = stats;
obd->obd_cntr_base = num_private_stats;
}
return rc;
}
EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
void lprocfs_free_obd_stats(struct obd_device *obd)
{
if (obd->obd_stats)
lprocfs_free_stats(&obd->obd_stats);
}
EXPORT_SYMBOL(lprocfs_free_obd_stats);
#define LPROCFS_MD_OP_INIT(base, stats, op) \
do { \
unsigned int coffset = base + MD_COUNTER_OFFSET(op); \
LASSERT(coffset < stats->ls_num); \
lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
} while (0)
void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
{
LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
LPROCFS_MD_OP_INIT(num_private_stats, stats, null_inode);
LPROCFS_MD_OP_INIT(num_private_stats, stats, find_cbdata);
LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
LPROCFS_MD_OP_INIT(num_private_stats, stats, unpack_capa);
LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_getattr_async);
LPROCFS_MD_OP_INIT(num_private_stats, stats, revalidate_lock);
}
EXPORT_SYMBOL(lprocfs_init_mps_stats);
int lprocfs_alloc_md_stats(struct obd_device *obd,
unsigned num_private_stats)
{
struct lprocfs_stats *stats;
unsigned int num_stats;
int rc, i;
LASSERT(obd->md_stats == NULL);
LASSERT(obd->obd_proc_entry != NULL);
LASSERT(obd->md_cntr_base == 0);
num_stats = 1 + MD_COUNTER_OFFSET(revalidate_lock) +
num_private_stats;
stats = lprocfs_alloc_stats(num_stats, 0);
if (stats == NULL)
return -ENOMEM;
lprocfs_init_mps_stats(num_private_stats, stats);
for (i = num_private_stats; i < num_stats; i++) {
if (stats->ls_cnt_header[i].lc_name == NULL) {
CERROR("Missing md_stat initializer md_op operation at offset %d. Aborting.\n",
i - num_private_stats);
LBUG();
}
}
rc = lprocfs_register_stats(obd->obd_proc_entry, "md_stats", stats);
if (rc < 0) {
lprocfs_free_stats(&stats);
} else {
obd->md_stats = stats;
obd->md_cntr_base = num_private_stats;
}
return rc;
}
EXPORT_SYMBOL(lprocfs_alloc_md_stats);
void lprocfs_free_md_stats(struct obd_device *obd)
{
struct lprocfs_stats *stats = obd->md_stats;
if (stats != NULL) {
obd->md_stats = NULL;
obd->md_cntr_base = 0;
lprocfs_free_stats(&stats);
}
}
EXPORT_SYMBOL(lprocfs_free_md_stats);
void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
{
lprocfs_counter_init(ldlm_stats,
LDLM_ENQUEUE - LDLM_FIRST_OPC,
0, "ldlm_enqueue", "reqs");
lprocfs_counter_init(ldlm_stats,
LDLM_CONVERT - LDLM_FIRST_OPC,
0, "ldlm_convert", "reqs");
lprocfs_counter_init(ldlm_stats,
LDLM_CANCEL - LDLM_FIRST_OPC,
0, "ldlm_cancel", "reqs");
lprocfs_counter_init(ldlm_stats,
LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
0, "ldlm_bl_callback", "reqs");
lprocfs_counter_init(ldlm_stats,
LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
0, "ldlm_cp_callback", "reqs");
lprocfs_counter_init(ldlm_stats,
LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
0, "ldlm_gl_callback", "reqs");
}
EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
int lprocfs_exp_print_uuid(struct cfs_hash *hs, struct cfs_hash_bd *bd,
struct hlist_node *hnode, void *data)
{
struct obd_export *exp = cfs_hash_object(hs, hnode);
struct seq_file *m = (struct seq_file *)data;
if (exp->exp_nid_stats)
seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid));
return 0;
}
static int
lproc_exp_uuid_seq_show(struct seq_file *m, void *unused)
{
struct nid_stat *stats = (struct nid_stat *)m->private;
struct obd_device *obd = stats->nid_obd;
cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
lprocfs_exp_print_uuid, m);
return 0;
}
LPROC_SEQ_FOPS_RO(lproc_exp_uuid);
struct exp_hash_cb_data {
struct seq_file *m;
bool first;
};
int lprocfs_exp_print_hash(struct cfs_hash *hs, struct cfs_hash_bd *bd,
struct hlist_node *hnode, void *cb_data)
{
struct exp_hash_cb_data *data = (struct exp_hash_cb_data *)cb_data;
struct obd_export *exp = cfs_hash_object(hs, hnode);
if (exp->exp_lock_hash != NULL) {
if (data->first) {
cfs_hash_debug_header(data->m);
data->first = false;
}
cfs_hash_debug_str(hs, data->m);
}
return 0;
}
static int
lproc_exp_hash_seq_show(struct seq_file *m, void *unused)
{
struct nid_stat *stats = (struct nid_stat *)m->private;
struct obd_device *obd = stats->nid_obd;
struct exp_hash_cb_data cb_data = {
.m = m,
.first = true
};
cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
lprocfs_exp_print_hash, &cb_data);
return 0;
}
LPROC_SEQ_FOPS_RO(lproc_exp_hash);
int lprocfs_nid_stats_clear_read(struct seq_file *m, void *data)
{
seq_printf(m, "%s\n",
"Write into this file to clear all nid stats and stale nid entries");
return 0;
}
EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
{
struct nid_stat *stat = obj;
CDEBUG(D_INFO, "refcnt %d\n", atomic_read(&stat->nid_exp_ref_count));
if (atomic_read(&stat->nid_exp_ref_count) == 1) {
/* object has only hash references. */
spin_lock(&stat->nid_obd->obd_nid_lock);
list_move(&stat->nid_list, data);
spin_unlock(&stat->nid_obd->obd_nid_lock);
return 1;
}
/* we has reference to object - only clear data*/
if (stat->nid_stats)
lprocfs_clear_stats(stat->nid_stats);
return 0;
}
int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = (struct obd_device *)data;
struct nid_stat *client_stat;
LIST_HEAD(free_list);
cfs_hash_cond_del(obd->obd_nid_stats_hash,
lprocfs_nid_stats_clear_write_cb, &free_list);
while (!list_empty(&free_list)) {
client_stat = list_entry(free_list.next, struct nid_stat,
nid_list);
list_del_init(&client_stat->nid_list);
lprocfs_free_client_stats(client_stat);
}
return count;
}
EXPORT_SYMBOL(lprocfs_nid_stats_clear_write);
int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
{
struct nid_stat *new_stat, *old_stat;
struct obd_device *obd = NULL;
struct proc_dir_entry *entry;
char *buffer = NULL;
int rc = 0;
*newnid = 0;
if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
!exp->exp_obd->obd_nid_stats_hash)
return -EINVAL;
/* not test against zero because eric say:
* You may only test nid against another nid, or LNET_NID_ANY.
* Anything else is nonsense.*/
if (!nid || *nid == LNET_NID_ANY)
return 0;
obd = exp->exp_obd;
CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
new_stat = kzalloc(sizeof(*new_stat), GFP_NOFS);
if (new_stat == NULL)
return -ENOMEM;
new_stat->nid = *nid;
new_stat->nid_obd = exp->exp_obd;
/* we need set default refcount to 1 to balance obd_disconnect */
atomic_set(&new_stat->nid_exp_ref_count, 1);
old_stat = cfs_hash_findadd_unique(obd->obd_nid_stats_hash,
nid, &new_stat->nid_hash);
CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
old_stat, libcfs_nid2str(*nid),
atomic_read(&new_stat->nid_exp_ref_count));
/* We need to release old stats because lprocfs_exp_cleanup() hasn't
* been and will never be called. */
if (exp->exp_nid_stats) {
nidstat_putref(exp->exp_nid_stats);
exp->exp_nid_stats = NULL;
}
/* Return -EALREADY here so that we know that the /proc
* entry already has been created */
if (old_stat != new_stat) {
exp->exp_nid_stats = old_stat;
rc = -EALREADY;
goto destroy_new;
}
/* not found - create */
buffer = kmemdup(libcfs_nid2str(*nid), LNET_NIDSTR_SIZE, GFP_NOFS);
if (buffer == NULL) {
rc = -ENOMEM;
goto destroy_new;
}
new_stat->nid_proc = lprocfs_register(buffer,
obd->obd_proc_exports_entry,
NULL, NULL);
kfree(buffer);
if (IS_ERR(new_stat->nid_proc)) {
CERROR("Error making export directory for nid %s\n",
libcfs_nid2str(*nid));
rc = PTR_ERR(new_stat->nid_proc);
new_stat->nid_proc = NULL;
goto destroy_new_ns;
}
entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
new_stat, &lproc_exp_uuid_fops);
if (IS_ERR(entry)) {
CWARN("Error adding the NID stats file\n");
rc = PTR_ERR(entry);
goto destroy_new_ns;
}
entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
new_stat, &lproc_exp_hash_fops);
if (IS_ERR(entry)) {
CWARN("Error adding the hash file\n");
rc = PTR_ERR(entry);
goto destroy_new_ns;
}
exp->exp_nid_stats = new_stat;
*newnid = 1;
/* protect competitive add to list, not need locking on destroy */
spin_lock(&obd->obd_nid_lock);
list_add(&new_stat->nid_list, &obd->obd_nid_stats);
spin_unlock(&obd->obd_nid_lock);
return rc;
destroy_new_ns:
if (new_stat->nid_proc != NULL)
lprocfs_remove(&new_stat->nid_proc);
cfs_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
destroy_new:
nidstat_putref(new_stat);
kfree(new_stat);
return rc;
}
EXPORT_SYMBOL(lprocfs_exp_setup);
int lprocfs_exp_cleanup(struct obd_export *exp)
{
struct nid_stat *stat = exp->exp_nid_stats;
if (!stat || !exp->exp_obd)
return 0;
nidstat_putref(exp->exp_nid_stats);
exp->exp_nid_stats = NULL;
return 0;
}
EXPORT_SYMBOL(lprocfs_exp_cleanup);
__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
struct lprocfs_counter_header *header,
enum lprocfs_stats_flags flags,
enum lprocfs_fields_flags field)
{
__s64 ret = 0;
if (lc == NULL || header == NULL)
return 0;
switch (field) {
case LPROCFS_FIELDS_FLAGS_CONFIG:
ret = header->lc_config;
break;
case LPROCFS_FIELDS_FLAGS_SUM:
ret = lc->lc_sum;
if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
ret += lc->lc_sum_irq;
break;
case LPROCFS_FIELDS_FLAGS_MIN:
ret = lc->lc_min;
break;
case LPROCFS_FIELDS_FLAGS_MAX:
ret = lc->lc_max;
break;
case LPROCFS_FIELDS_FLAGS_AVG:
ret = (lc->lc_max - lc->lc_min) / 2;
break;
case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
ret = lc->lc_sumsquare;
break;
case LPROCFS_FIELDS_FLAGS_COUNT:
ret = lc->lc_count;
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL(lprocfs_read_helper);
int lprocfs_write_helper(const char __user *buffer, unsigned long count,
int *val)
{
return lprocfs_write_frac_helper(buffer, count, val, 1);
}
EXPORT_SYMBOL(lprocfs_write_helper);
int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult)
{
long decimal_val, frac_val;
decimal_val = val / mult;
seq_printf(m, "%ld", decimal_val);
frac_val = val % mult;
if (frac_val > 0) {
frac_val *= 100;
frac_val /= mult;
}
if (frac_val > 0) {
/* Three cases: x0, xx, 0x */
if ((frac_val % 10) != 0)
seq_printf(m, ".%ld", frac_val);
else
seq_printf(m, ".%ld", frac_val / 10);
}
seq_printf(m, "\n");
return 0;
}
EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
int lprocfs_write_u64_helper(const char __user *buffer, unsigned long count,
__u64 *val)
{
return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
}
EXPORT_SYMBOL(lprocfs_write_u64_helper);
int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
__u64 *val, int mult)
{
char kernbuf[22], *end, *pbuf;
__u64 whole, frac = 0, units;
unsigned frac_d = 1;
int sign = 1;
if (count > (sizeof(kernbuf) - 1))
return -EINVAL;
if (copy_from_user(kernbuf, buffer, count))
return -EFAULT;
kernbuf[count] = '\0';
pbuf = kernbuf;
if (*pbuf == '-') {
sign = -1;
pbuf++;
}
whole = simple_strtoull(pbuf, &end, 10);
if (pbuf == end)
return -EINVAL;
if (*end == '.') {
int i;
pbuf = end + 1;
/* need to limit frac_d to a __u32 */
if (strlen(pbuf) > 10)
pbuf[10] = '\0';
frac = simple_strtoull(pbuf, &end, 10);
/* count decimal places */
for (i = 0; i < (end - pbuf); i++)
frac_d *= 10;
}
units = 1;
switch (tolower(*end)) {
case 'p':
units <<= 10;
case 't':
units <<= 10;
case 'g':
units <<= 10;
case 'm':
units <<= 10;
case 'k':
units <<= 10;
}
/* Specified units override the multiplier */
if (units > 1)
mult = units;
frac *= mult;
do_div(frac, frac_d);
*val = sign * (whole * mult + frac);
return 0;
}
EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);
static char *lprocfs_strnstr(const char *s1, const char *s2, size_t len)
{
size_t l2;
l2 = strlen(s2);
if (!l2)
return (char *)s1;
while (len >= l2) {
len--;
if (!memcmp(s1, s2, l2))
return (char *)s1;
s1++;
}
return NULL;
}
/**
* Find the string \a name in the input \a buffer, and return a pointer to the
* value immediately following \a name, reducing \a count appropriately.
* If \a name is not found the original \a buffer is returned.
*/
char *lprocfs_find_named_value(const char *buffer, const char *name,
size_t *count)
{
char *val;
size_t buflen = *count;
/* there is no strnstr() in rhel5 and ubuntu kernels */
val = lprocfs_strnstr(buffer, name, buflen);
if (val == NULL)
return (char *)buffer;
val += strlen(name); /* skip prefix */
while (val < buffer + buflen && isspace(*val)) /* skip separator */
val++;
*count = 0;
while (val < buffer + buflen && isalnum(*val)) {
++*count;
++val;
}
return val - *count;
}
EXPORT_SYMBOL(lprocfs_find_named_value);
int ldebugfs_seq_create(struct dentry *parent,
const char *name,
umode_t mode,
const struct file_operations *seq_fops,
void *data)
{
struct dentry *entry;
/* Disallow secretly (un)writable entries. */
LASSERT((seq_fops->write == NULL) == ((mode & 0222) == 0));
entry = debugfs_create_file(name, mode, parent, data, seq_fops);
if (IS_ERR_OR_NULL(entry))
return entry ? PTR_ERR(entry) : -ENOMEM;
return 0;
}
EXPORT_SYMBOL(ldebugfs_seq_create);
int lprocfs_seq_create(struct proc_dir_entry *parent,
const char *name,
umode_t mode,
const struct file_operations *seq_fops,
void *data)
{
struct proc_dir_entry *entry;
/* Disallow secretly (un)writable entries. */
LASSERT((seq_fops->write == NULL) == ((mode & 0222) == 0));
entry = proc_create_data(name, mode, parent, seq_fops, data);
if (entry == NULL)
return -ENOMEM;
return 0;
}
EXPORT_SYMBOL(lprocfs_seq_create);
int lprocfs_obd_seq_create(struct obd_device *dev,
const char *name,
umode_t mode,
const struct file_operations *seq_fops,
void *data)
{
return lprocfs_seq_create(dev->obd_proc_entry, name,
mode, seq_fops, data);
}
EXPORT_SYMBOL(lprocfs_obd_seq_create);
void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
{
if (value >= OBD_HIST_MAX)
value = OBD_HIST_MAX - 1;
spin_lock(&oh->oh_lock);
oh->oh_buckets[value]++;
spin_unlock(&oh->oh_lock);
}
EXPORT_SYMBOL(lprocfs_oh_tally);
void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
{
unsigned int val;
for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
;
lprocfs_oh_tally(oh, val);
}
EXPORT_SYMBOL(lprocfs_oh_tally_log2);
unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
{
unsigned long ret = 0;
int i;
for (i = 0; i < OBD_HIST_MAX; i++)
ret += oh->oh_buckets[i];
return ret;
}
EXPORT_SYMBOL(lprocfs_oh_sum);
void lprocfs_oh_clear(struct obd_histogram *oh)
{
spin_lock(&oh->oh_lock);
memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
spin_unlock(&oh->oh_lock);
}
EXPORT_SYMBOL(lprocfs_oh_clear);
int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data)
{
struct obd_device *dev = data;
struct client_obd *cli = &dev->u.cli;
client_obd_list_lock(&cli->cl_loi_list_lock);
seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
client_obd_list_unlock(&cli->cl_loi_list_lock);
return 0;
}
EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc);
#endif
ssize_t lustre_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct lustre_attr *a = container_of(attr, struct lustre_attr, attr);
return a->show ? a->show(kobj, attr, buf) : 0;
}
EXPORT_SYMBOL_GPL(lustre_attr_show);
ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t len)
{
struct lustre_attr *a = container_of(attr, struct lustre_attr, attr);
return a->store ? a->store(kobj, attr, buf, len) : len;
}
EXPORT_SYMBOL_GPL(lustre_attr_store);
const struct sysfs_ops lustre_sysfs_ops = {
.show = lustre_attr_show,
.store = lustre_attr_store,
};
EXPORT_SYMBOL_GPL(lustre_sysfs_ops);
|