| /* |
| * 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 <obd_class.h> |
| #include <lprocfs_status.h> |
| #include <lustre/lustre_idl.h> |
| #include <linux/seq_file.h> |
| |
| #if defined(LPROCFS) |
| |
| static int lprocfs_no_percpu_stats = 0; |
| CFS_MODULE_PARM(lprocfs_no_percpu_stats, "i", int, 0644, |
| "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; |
| |
| OBD_ALLOC_WAIT(dest, MAX_STRING_SIZE + 1); |
| 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); |
| |
| OBD_FREE(dest, MAX_STRING_SIZE + 1); |
| return entry; |
| } |
| EXPORT_SYMBOL(lprocfs_add_symlink); |
| |
| static struct file_operations lprocfs_generic_fops = { }; |
| |
| /** |
| * 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 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 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) |
| GOTO(out, entry = ERR_PTR(-ENOMEM)); |
| |
| 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) |
| { |
| return seq_printf(m, "%u\n", *(unsigned int *)data); |
| } |
| 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) |
| { |
| return seq_printf(m, LPU64"\n", *(__u64 *)data); |
| } |
| EXPORT_SYMBOL(lprocfs_rd_u64); |
| |
| int lprocfs_rd_atomic(struct seq_file *m, void *data) |
| { |
| atomic_t *atom = data; |
| LASSERT(atom != NULL); |
| return seq_printf(m, "%d\n", atomic_read(atom)); |
| } |
| 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); |
| return seq_printf(m, "%s\n", obd->obd_uuid.uuid); |
| } |
| EXPORT_SYMBOL(lprocfs_rd_uuid); |
| |
| int lprocfs_rd_name(struct seq_file *m, void *data) |
| { |
| struct obd_device *dev = data; |
| |
| LASSERT(dev != NULL); |
| return seq_printf(m, "%s\n", dev->obd_name); |
| } |
| 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) |
| 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; |
| |
| rc = seq_printf(m, LPU64"\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; |
| |
| rc = seq_printf(m, LPU64"\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; |
| |
| rc = seq_printf(m, LPU64"\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) |
| rc = seq_printf(m, LPU64"\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) |
| rc = seq_printf(m, LPU64"\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; |
| int rc = 0; |
| |
| LASSERT(obd != NULL); |
| LPROCFS_CLIMP_CHECK(obd); |
| imp = obd->u.cli.cl_import; |
| imp_state_name = ptlrpc_import_state_name(imp->imp_state); |
| rc = seq_printf(m, "%s\t%s%s\n", obd2cli_tgt(obd), imp_state_name, |
| imp->imp_deactive ? "\tDEACTIVATED" : ""); |
| |
| LPROCFS_CLIMP_EXIT(obd); |
| return rc; |
| } |
| 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; |
| int rc = 0; |
| |
| LASSERT(obd != NULL); |
| |
| LPROCFS_CLIMP_CHECK(obd); |
| conn = obd->u.cli.cl_import->imp_connection; |
| if (conn && obd->u.cli.cl_import) |
| rc = seq_printf(m, "%s\n", conn->c_remote_uuid.uuid); |
| else |
| rc = seq_printf(m, "%s\n", "<none>"); |
| |
| LPROCFS_CLIMP_EXIT(obd); |
| return rc; |
| } |
| 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; |
| struct lprocfs_counter_header *cntr_header; |
| 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; |
| cntr_header = &stats->ls_cnt_header[idx]; |
| 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 const char *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", |
| "unknown", |
| NULL |
| }; |
| |
| 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 "LPX64, |
| first ? sep : "", flags & ~(mask - 1)); |
| } |
| |
| 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 "LPX64, |
| ret ? sep : "", flags & ~(mask - 1)); |
| return ret; |
| } |
| EXPORT_SYMBOL(obd_connect_flags2str); |
| |
| 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: "LPU64" %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: "LPU64"\n" |
| " peer_committed: "LPU64"\n" |
| " last_checked: "LPU64"\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: "LPU64"\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: "LPU64"\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 = cfs_time_current_sec(); |
| |
| /* 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="LPX64"\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); |
| |
| int lprocfs_rd_num_exports(struct seq_file *m, void *data) |
| { |
| struct obd_device *obd = data; |
| |
| LASSERT(obd != NULL); |
| return seq_printf(m, "%u\n", obd->obd_num_exports); |
| } |
| EXPORT_SYMBOL(lprocfs_rd_num_exports); |
| |
| int lprocfs_rd_numrefs(struct seq_file *m, void *data) |
| { |
| struct obd_type *class = (struct obd_type*) data; |
| |
| LASSERT(class != NULL); |
| return seq_printf(m, "%d\n", class->typ_refcnt); |
| } |
| EXPORT_SYMBOL(lprocfs_rd_numrefs); |
| |
| int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list) |
| { |
| int rc = 0; |
| |
| LASSERT(obd != NULL); |
| LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC); |
| LASSERT(obd->obd_type->typ_procroot != NULL); |
| |
| obd->obd_proc_entry = lprocfs_register(obd->obd_name, |
| obd->obd_type->typ_procroot, |
| list, obd); |
| if (IS_ERR(obd->obd_proc_entry)) { |
| 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; |
| } |
| 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); |
| |
| OBD_FREE_PTR(client_stat); |
| return; |
| |
| } |
| |
| void lprocfs_free_per_client_stats(struct obd_device *obd) |
| { |
| cfs_hash_t *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); |
| |
| 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; |
| struct lprocfs_counter_header *header; |
| 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++) { |
| header = &stats->ls_cnt_header[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; |
| int rc = 0; |
| |
| if (idx == 0) { |
| struct timeval now; |
| do_gettimeofday(&now); |
| rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n", |
| "snapshot_time", now.tv_sec, (unsigned long)now.tv_usec); |
| if (rc < 0) |
| return rc; |
| } |
| hdr = &stats->ls_cnt_header[idx]; |
| lprocfs_stats_collect(stats, idx, &ctr); |
| |
| if (ctr.lc_count == 0) |
| goto out; |
| |
| rc = seq_printf(p, "%-25s "LPD64" samples [%s]", hdr->lc_name, |
| ctr.lc_count, hdr->lc_units); |
| |
| if (rc < 0) |
| goto out; |
| |
| if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ctr.lc_count > 0)) { |
| rc = seq_printf(p, " "LPD64" "LPD64" "LPD64, |
| ctr.lc_min, ctr.lc_max, ctr.lc_sum); |
| if (rc < 0) |
| goto out; |
| if (hdr->lc_config & LPROCFS_CNTR_STDDEV) |
| rc = seq_printf(p, " "LPD64, ctr.lc_sumsquare); |
| if (rc < 0) |
| goto out; |
| } |
| rc = seq_printf(p, "\n"); |
| out: |
| return (rc < 0) ? rc : 0; |
| } |
| |
| 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 = 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 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, precreate); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, create); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, create_async); |
| 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, brw); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, merge_lvb); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate); |
| 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, enqueue); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused); |
| 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, extent_calc); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_connect); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin); |
| LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin); |
| 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, ping); |
| 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(cfs_hash_t *hs, cfs_hash_bd_t *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(cfs_hash_t *hs, cfs_hash_bd_t *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, 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) |
| { |
| return seq_printf(m, "%s\n", |
| "Write into this file to clear all nid stats and " |
| "stale nid entries"); |
| } |
| 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); |
| |
| OBD_ALLOC_PTR(new_stat); |
| 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; |
| GOTO(destroy_new, rc = -EALREADY); |
| } |
| /* not found - create */ |
| OBD_ALLOC(buffer, LNET_NIDSTR_SIZE); |
| if (buffer == NULL) |
| GOTO(destroy_new, rc = -ENOMEM); |
| |
| memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE); |
| new_stat->nid_proc = lprocfs_register(buffer, |
| obd->obd_proc_exports_entry, |
| NULL, NULL); |
| OBD_FREE(buffer, LNET_NIDSTR_SIZE); |
| |
| 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, rc); |
| } |
| |
| 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, rc); |
| } |
| |
| 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, rc); |
| } |
| |
| 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); |
| OBD_FREE_PTR(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); |
| |
| int lprocfs_write_helper(const char *buffer, unsigned long count, |
| int *val) |
| { |
| return lprocfs_write_frac_helper(buffer, count, val, 1); |
| } |
| EXPORT_SYMBOL(lprocfs_write_helper); |
| |
| int lprocfs_write_frac_helper(const char *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); |
| |
| 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_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 *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; |
| |
| 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++; |
| } |
| |
| whole = simple_strtoull(pbuf, &end, 10); |
| if (pbuf == end) |
| return -EINVAL; |
| |
| if (end != NULL && *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(*end) { |
| case 'p': case 'P': |
| units <<= 10; |
| case 't': case 'T': |
| units <<= 10; |
| case 'g': case 'G': |
| units <<= 10; |
| case 'm': case 'M': |
| units <<= 10; |
| case 'k': case 'K': |
| units <<= 10; |
| } |
| /* Specified units override the multiplier */ |
| if (units) |
| mult = mult < 0 ? -units : units; |
| |
| frac *= mult; |
| do_div(frac, frac_d); |
| *val = 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 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; |
| int rc; |
| |
| client_obd_list_lock(&cli->cl_loi_list_lock); |
| rc = seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc); |
| client_obd_list_unlock(&cli->cl_loi_list_lock); |
| return rc; |
| } |
| EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc); |
| |
| #endif /* LPROCFS*/ |