/* * 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.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ /* * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2014, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ * * lustre/obdclass/lprocfs_status_server.c */ #define DEBUG_SUBSYSTEM S_CLASS #include #include #include #include #include #define MAX_STRING_SIZE 128 struct dentry *ldebugfs_add_symlink(const char *name, const char *target, const char *format, ...) { struct dentry *entry = NULL; struct dentry *parent; struct qstr dname; va_list ap; char *dest; if (!target || !format) return NULL; dname.name = target; dname.len = strlen(dname.name); dname.hash = ll_full_name_hash(debugfs_lustre_root, dname.name, dname.len); parent = d_lookup(debugfs_lustre_root, &dname); if (!parent) return NULL; OBD_ALLOC_WAIT(dest, MAX_STRING_SIZE + 1); if (!dest) goto no_entry; va_start(ap, format); vsnprintf(dest, MAX_STRING_SIZE, format, ap); va_end(ap); entry = debugfs_create_symlink(name, parent, dest); OBD_FREE(dest, MAX_STRING_SIZE + 1); no_entry: dput(parent); return entry; } EXPORT_SYMBOL(ldebugfs_add_symlink); #ifdef CONFIG_PROC_FS int lprocfs_evict_client_open(struct inode *inode, struct file *f) { struct obd_device *obd = PDE_DATA(file_inode(f)); atomic_inc(&obd->obd_evict_inprogress); return 0; } int lprocfs_evict_client_release(struct inode *inode, struct file *f) { struct obd_device *obd = PDE_DATA(file_inode(f)); atomic_dec(&obd->obd_evict_inprogress); wake_up(&obd->obd_evict_inprogress_waitq); return 0; } #define BUFLEN (UUID_MAX + 5) ssize_t lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer, size_t count, loff_t *off) { struct seq_file *m = file->private_data; struct obd_device *obd = m->private; char *tmpbuf, *kbuf; OBD_ALLOC(kbuf, BUFLEN); if (kbuf == NULL) return -ENOMEM; /* * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1 * bytes into kbuf, to ensure that the string is NUL-terminated. * UUID_MAX should include a trailing NUL already. */ if (copy_from_user(kbuf, buffer, min_t(unsigned long, BUFLEN - 1, count))) { count = -EFAULT; goto out; } tmpbuf = skip_spaces(kbuf); tmpbuf = strsep(&tmpbuf, " \t\n\f\v\r"); class_incref(obd, __func__, current); if (strncmp(tmpbuf, "nid:", 4) == 0) obd_export_evict_by_nid(obd, tmpbuf + 4); else if (strncmp(tmpbuf, "uuid:", 5) == 0) obd_export_evict_by_uuid(obd, tmpbuf + 5); else obd_export_evict_by_uuid(obd, tmpbuf); class_decref(obd, __func__, current); out: OBD_FREE(kbuf, BUFLEN); return count; } EXPORT_SYMBOL(lprocfs_evict_client_seq_write); #undef BUFLEN ssize_t num_exports_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return scnprintf(buf, PAGE_SIZE, "%u\n", obd->obd_num_exports); } EXPORT_SYMBOL(num_exports_show); ssize_t grant_check_threshold_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_grant_check_threshold); } EXPORT_SYMBOL(grant_check_threshold_show); ssize_t grant_check_threshold_store(struct kobject *kobj, struct attribute *attr, const char *buffer, size_t count) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); int val; int rc; rc = kstrtoint(buffer, 10, &val); if (rc) return rc; if (val < 0) return -EINVAL; obd->obd_grant_check_threshold = val; return count; } EXPORT_SYMBOL(grant_check_threshold_store); static int obd_export_flags2str(struct obd_export *exp, struct seq_file *m) { bool first = true; flag2str(exp, failed); flag2str(exp, in_recovery); flag2str(exp, disconnected); flag2str(exp, connecting); flag2str(exp, no_recovery); return 0; } static int lprocfs_exp_print_export_seq(struct obd_export *exp, void *cb_data) { struct seq_file *m = cb_data; struct obd_device *obd; struct obd_connect_data *ocd; LASSERT(exp != NULL); if (exp->exp_nid_stats == NULL) goto out; obd = exp->exp_obd; ocd = &exp->exp_connect_data; seq_printf(m, "%s:\n" " name: %s\n" " client: %s\n" " connect_flags: [ ", obd_uuid2str(&exp->exp_client_uuid), obd->obd_name, obd_export_nid2str(exp)); obd_connect_seq_flags2str(m, ocd->ocd_connect_flags, ocd->ocd_connect_flags2, ", "); seq_printf(m, " ]\n"); obd_connect_data_seqprint(m, ocd); seq_printf(m, " export_flags: [ "); obd_export_flags2str(exp, m); seq_printf(m, " ]\n"); if (obd->obd_type && strcmp(obd->obd_type->typ_name, "obdfilter") == 0) { struct filter_export_data *fed = &exp->exp_filter_data; seq_printf(m, " grant:\n"); seq_printf(m, " granted: %ld\n", fed->fed_ted.ted_grant); seq_printf(m, " dirty: %ld\n", fed->fed_ted.ted_dirty); seq_printf(m, " pending: %ld\n", fed->fed_ted.ted_pending); } out: return 0; } /** * RPC connections are composed of an import and an export. Using the * lctl utility we can extract important information about the state. * The lprocfs_exp_export_seq_show routine displays the state information * for the export. * * \param[in] m seq file * \param[in] data unused * * \retval 0 on success * * The format of the export state information is like: * a793e354-49c0-aa11-8c4f-a4f2b1a1a92b: * name: MGS * client: 10.211.55.10@tcp * connect_flags: [ version, barrier, adaptive_timeouts, ... ] * connect_data: * flags: 0x2000011005002020 * instance: 0 * target_version: 2.10.51.0 * export_flags: [ ... ] * */ static int lprocfs_exp_export_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_export_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_export); 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); } void lprocfs_free_per_client_stats(struct obd_device *obd) { struct cfs_hash *hash = obd->obd_nid_stats_hash; struct nid_stat *stat; ENTRY; /* 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); } EXIT; } EXPORT_SYMBOL(lprocfs_free_per_client_stats); static int lprocfs_exp_print_nodemap_seq(struct obd_export *exp, void *cb_data) { struct lu_nodemap *nodemap = exp->exp_target_data.ted_nodemap; struct seq_file *m = cb_data; if (nodemap) seq_printf(m, "%s\n", nodemap->nm_name); return 0; } static int lprocfs_exp_nodemap_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_nodemap_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_nodemap); static int lprocfs_exp_print_uuid_seq(struct obd_export *exp, void *cb_data) { struct seq_file *m = cb_data; if (exp->exp_nid_stats) seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid)); return 0; } static int lprocfs_exp_uuid_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_uuid_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_uuid); #define HASH_NAME_LEN 16 static void ldebugfs_rhash_seq_show(const char *name, struct rhashtable *ht, struct seq_file *m) { unsigned int max_size = ht->p.max_size ? ht->p.max_size : UINT_MAX; struct bucket_table *tbl; int dist[8] = { 0, }; int maxdep = 0; int i; rcu_read_lock(); tbl = rht_dereference(ht->tbl, ht); for (i = 0; i < tbl->size; i++) { struct rhash_head *pos; int count = 0; rht_for_each(pos, tbl, i) count++; if (count) maxdep = max(maxdep, count); dist[min(fls(count), 7)]++; } seq_printf(m, "%-*s %5d %5d %10u %d.%03d 0.300 0.750 0x%03x %7d %7d %7d ", HASH_NAME_LEN, name, tbl->size, ht->p.min_size, max_size, atomic_read(&ht->nelems) / tbl->size, atomic_read(&ht->nelems) * 1000 / tbl->size, ht->p.automatic_shrinking, 0, atomic_read(&ht->nelems), maxdep); rcu_read_unlock(); for (i = 0; i < 8; i++) seq_printf(m, "%d%c", dist[i], (i == 7) ? '\n' : '/'); } static int lprocfs_exp_print_hash_seq(struct obd_export *exp, void *cb_data) { struct obd_device *obd = exp->exp_obd; struct seq_file *m = cb_data; if (exp->exp_lock_hash != NULL) { seq_printf(m, "%-*s cur min max theta t-min t-max flags rehash count distribution\n", HASH_NAME_LEN, "name"); ldebugfs_rhash_seq_show("NID_HASH", &obd->obd_nid_hash.ht, m); } return 0; } static int lprocfs_exp_hash_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_hash_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_hash); int lprocfs_exp_print_replydata_seq(struct obd_export *exp, void *cb_data) { struct seq_file *m = cb_data; struct tg_export_data *ted = &exp->exp_target_data; seq_printf(m, "reply_cnt: %d\n" "reply_max: %d\n" "reply_released_by_xid: %d\n" "reply_released_by_tag: %d\n\n", ted->ted_reply_cnt, ted->ted_reply_max, ted->ted_release_xid, ted->ted_release_tag); return 0; } int lprocfs_exp_replydata_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_replydata_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_replydata); int lprocfs_exp_print_fmd_count_seq(struct obd_export *exp, void *cb_data) { struct seq_file *m = cb_data; struct tg_export_data *ted = &exp->exp_target_data; seq_printf(m, "%d\n", ted->ted_fmd_count); return 0; } int lprocfs_exp_fmd_count_seq_show(struct seq_file *m, void *data) { struct nid_stat *stats = m->private; return obd_nid_export_for_each(stats->nid_obd, stats->nid, lprocfs_exp_print_fmd_count_seq, m); } LPROC_SEQ_FOPS_RO(lprocfs_exp_fmd_count); int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data) { seq_puts(m, "Write into this file to clear all nid stats and stale nid entries\n"); return 0; } EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_show); static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data) { struct nid_stat *stat = obj; ENTRY; 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); } ssize_t lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer, size_t count, loff_t *off) { struct seq_file *m = file->private_data; struct obd_device *obd = m->private; 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_seq_write); int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid) { struct nid_stat *new_stat, *old_stat; struct obd_device *obd = NULL; struct proc_dir_entry *entry; char nidstr[LNET_NIDSTR_SIZE]; int rc = 0; ENTRY; 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 == NULL || *nid == LNET_NID_ANY) RETURN(-EALREADY); libcfs_nid2str_r(*nid, nidstr, sizeof(nidstr)); spin_lock(&exp->exp_lock); if (exp->exp_nid_stats != NULL) { spin_unlock(&exp->exp_lock); RETURN(-EALREADY); } spin_unlock(&exp->exp_lock); 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, nidstr, atomic_read(&old_stat->nid_exp_ref_count)); /* Return -EALREADY here so that we know that the /proc * entry already has been created */ if (old_stat != new_stat) { spin_lock(&exp->exp_lock); if (exp->exp_nid_stats) { LASSERT(exp->exp_nid_stats == old_stat); nidstat_putref(exp->exp_nid_stats); } exp->exp_nid_stats = old_stat; spin_unlock(&exp->exp_lock); GOTO(destroy_new, rc = -EALREADY); } /* not found - create */ new_stat->nid_proc = lprocfs_register(nidstr, obd->obd_proc_exports_entry, NULL, NULL); if (IS_ERR(new_stat->nid_proc)) { rc = PTR_ERR(new_stat->nid_proc); new_stat->nid_proc = NULL; CERROR("%s: cannot create proc entry for export %s: rc = %d\n", obd->obd_name, nidstr, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "nodemap", new_stat, &lprocfs_exp_nodemap_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the nodemap file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "uuid", new_stat, &lprocfs_exp_uuid_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the NID stats file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "hash", new_stat, &lprocfs_exp_hash_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the hash file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "export", new_stat, &lprocfs_exp_export_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the export file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "reply_data", new_stat, &lprocfs_exp_replydata_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the reply_data file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } entry = lprocfs_add_simple(new_stat->nid_proc, "fmd_count", new_stat, &lprocfs_exp_fmd_count_fops); if (IS_ERR(entry)) { rc = PTR_ERR(entry); CWARN("%s: error adding the fmd_count file: rc = %d\n", obd->obd_name, rc); GOTO(destroy_new_ns, rc); } spin_lock(&exp->exp_lock); exp->exp_nid_stats = new_stat; spin_unlock(&exp->exp_lock); /* 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(0); 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; } int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned int num_stats) { struct lprocfs_stats *stats; int rc; LASSERT(obd->obd_stats == NULL); LASSERT(obd->obd_proc_entry != NULL); stats = lprocfs_alloc_stats(num_stats, 0); if (stats == NULL) return -ENOMEM; rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats); if (rc < 0) lprocfs_free_stats(&stats); else obd->obd_stats = 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); static void display_brw_stats(struct seq_file *seq, const char *name, const char *units, struct obd_hist_pcpu *read, struct obd_hist_pcpu *write, bool scale) { unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0; unsigned int i; seq_printf(seq, "\n%26s read | write\n", " "); seq_printf(seq, "%-22s %-5s %% cum %% | %-11s %% cum %%\n", name, units, units); read_tot = lprocfs_oh_sum_pcpu(read); write_tot = lprocfs_oh_sum_pcpu(write); if (!read_tot && !write_tot) return; for (i = 0; i < OBD_HIST_MAX; i++) { r = lprocfs_oh_counter_pcpu(read, i); w = lprocfs_oh_counter_pcpu(write, i); read_cum += r; write_cum += w; if (read_cum == 0 && write_cum == 0) continue; if (!scale) seq_printf(seq, "%u", i); else if (i < 10) seq_printf(seq, "%lu", BIT(i)); else if (i < 20) seq_printf(seq, "%luK", BIT(i - 10)); else seq_printf(seq, "%luM", BIT(i - 20)); seq_printf(seq, ":\t\t%10lu %3u %3u | %4lu %3u %3u\n", r, pct(r, read_tot), pct(read_cum, read_tot), w, pct(w, write_tot), pct(write_cum, write_tot)); if (read_cum == read_tot && write_cum == write_tot) break; } } static const struct brw_stats_props brw_props[] = { { .bsp_name = "pages per bulk r/w", .bsp_units = "rpcs", .bsp_scale = true }, { .bsp_name = "discontiguous pages", .bsp_units = "rpcs", .bsp_scale = false }, { .bsp_name = "discontiguous blocks", .bsp_units = "rpcs", .bsp_scale = false }, { .bsp_name = "disk fragmented I/Os", .bsp_units = "ios", .bsp_scale = false }, { .bsp_name = "disk I/Os in flight", .bsp_units = "ios", .bsp_scale = false }, { .bsp_name = "I/O time (1/1000s)", .bsp_units = "ios", .bsp_scale = true }, { .bsp_name = "disk I/O size", .bsp_units = "ios", .bsp_scale = true }, }; static int brw_stats_seq_show(struct seq_file *seq, void *v) { struct brw_stats *brw_stats = seq->private; int i; /* this sampling races with updates */ lprocfs_stats_header(seq, ktime_get(), brw_stats->bs_init, 25, ":", 1); for (i = 0; i < ARRAY_SIZE(brw_stats->bs_props); i++) { if (!brw_stats->bs_props[i].bsp_name) continue; display_brw_stats(seq, brw_stats->bs_props[i].bsp_name, brw_stats->bs_props[i].bsp_units, &brw_stats->bs_hist[i * 2], &brw_stats->bs_hist[i * 2 + 1], brw_stats->bs_props[i].bsp_scale); } return 0; } static ssize_t brw_stats_seq_write(struct file *file, const char __user *buf, size_t len, loff_t *off) { struct seq_file *seq = file->private_data; struct brw_stats *brw_stats = seq->private; int i; for (i = 0; i < BRW_RW_STATS_NUM; i++) lprocfs_oh_clear_pcpu(&brw_stats->bs_hist[i]); return len; } LDEBUGFS_SEQ_FOPS(brw_stats); int lprocfs_init_brw_stats(struct brw_stats *brw_stats) { int i, result; for (i = 0; i < BRW_RW_STATS_NUM; i++) { result = lprocfs_oh_alloc_pcpu(&brw_stats->bs_hist[i]); if (result) break; } return result; } EXPORT_SYMBOL(lprocfs_init_brw_stats); void lprocfs_fini_brw_stats(struct brw_stats *brw_stats) { int i; for (i = 0; i < BRW_RW_STATS_NUM; i++) lprocfs_oh_release_pcpu(&brw_stats->bs_hist[i]); } EXPORT_SYMBOL(lprocfs_fini_brw_stats); void ldebugfs_register_osd_stats(struct dentry *parent, struct brw_stats *brw_stats, struct lprocfs_stats *stats) { int i; LASSERT(brw_stats); brw_stats->bs_init = ktime_get(); for (i = 0; i < BRW_RW_STATS_NUM; i++) { struct brw_stats_props *props = brw_stats->bs_props; if (i % 2) { props[i / 2].bsp_name = brw_props[i / 2].bsp_name; props[i / 2].bsp_units = brw_props[i / 2].bsp_units; props[i / 2].bsp_scale = brw_props[i / 2].bsp_scale; } } if (!parent) return; debugfs_create_file("brw_stats", 0644, parent, brw_stats, &brw_stats_fops); if (stats) debugfs_create_file("stats", 0644, parent, stats, &ldebugfs_stats_seq_fops); } EXPORT_SYMBOL(ldebugfs_register_osd_stats); int lprocfs_hash_seq_show(struct seq_file *m, void *data) { struct obd_device *obd = m->private; if (obd == NULL) return 0; /* header for rhashtable state */ seq_printf(m, "%-*s cur min max theta t-min t-max flags rehash count maxdep distribution\n", HASH_NAME_LEN, "name"); ldebugfs_rhash_seq_show("UUID_HASH", &obd->obd_uuid_hash, m); ldebugfs_rhash_seq_show("NID_HASH", &obd->obd_nid_hash.ht, m); cfs_hash_debug_header(m); cfs_hash_debug_str(obd->obd_nid_stats_hash, m); return 0; } EXPORT_SYMBOL(lprocfs_hash_seq_show); int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data) { struct obd_device *obd = m->private; struct target_distribute_txn_data *tdtd; LASSERT(obd != NULL); seq_printf(m, "status: "); if (atomic_read(&obd->obd_max_recoverable_clients) == 0) { seq_printf(m, "INACTIVE\n"); goto out; } /* There is gap between client data read from storage and setting * obd_recovering so check obd_recovery_end as well to make sure * recovery is really finished */ if (obd->obd_recovery_end > 0 && !obd->obd_recovering) { seq_printf(m, "COMPLETE\n"); seq_printf(m, "recovery_start: %lld\n", (s64)ktime_get_real_seconds() - (ktime_get_seconds() - obd->obd_recovery_start)); seq_printf(m, "recovery_duration: %lld\n", obd->obd_recovery_end ? obd->obd_recovery_end - obd->obd_recovery_start : ktime_get_seconds() - obd->obd_recovery_start); /* Number of clients that have completed recovery */ seq_printf(m, "completed_clients: %d/%d\n", atomic_read(&obd->obd_max_recoverable_clients) - obd->obd_stale_clients, atomic_read(&obd->obd_max_recoverable_clients)); seq_printf(m, "replayed_requests: %d\n", obd->obd_replayed_requests); seq_printf(m, "last_transno: %lld\n", obd->obd_next_recovery_transno - 1); seq_printf(m, "VBR: %s\n", obd->obd_version_recov ? "ENABLED" : "DISABLED"); seq_printf(m, "IR: %s\n", obd->obd_no_ir ? "DISABLED" : "ENABLED"); goto out; } tdtd = obd->u.obt.obt_lut->lut_tdtd; if (tdtd && tdtd->tdtd_show_update_logs_retrievers) { char *buf; int size = 0; int count = 0; buf = tdtd->tdtd_show_update_logs_retrievers( tdtd->tdtd_show_retrievers_cbdata, &size, &count); if (count > 0) { seq_printf(m, "WAITING\n"); seq_printf(m, "non-ready MDTs: %s\n", buf ? buf : "unknown (not enough RAM)"); seq_printf(m, "recovery_start: %lld\n", (s64)ktime_get_real_seconds() - (ktime_get_seconds() - obd->obd_recovery_start)); seq_printf(m, "time_waited: %lld\n", (s64)(ktime_get_seconds() - obd->obd_recovery_start)); } if (buf != NULL) OBD_FREE(buf, size); if (likely(count > 0)) goto out; } /* recovery won't start until the clients connect */ if (obd->obd_recovery_start == 0) { seq_printf(m, "WAITING_FOR_CLIENTS\n"); goto out; } seq_printf(m, "RECOVERING\n"); seq_printf(m, "recovery_start: %lld\n", (s64)ktime_get_real_seconds() - (ktime_get_seconds() - obd->obd_recovery_start)); seq_printf(m, "time_remaining: %lld\n", ktime_get_seconds() >= obd->obd_recovery_start + obd->obd_recovery_timeout ? 0 : (s64)(obd->obd_recovery_start + obd->obd_recovery_timeout - ktime_get_seconds())); seq_printf(m, "connected_clients: %d/%d\n", atomic_read(&obd->obd_connected_clients), atomic_read(&obd->obd_max_recoverable_clients)); /* Number of clients that have completed recovery */ seq_printf(m, "req_replay_clients: %d\n", atomic_read(&obd->obd_req_replay_clients)); seq_printf(m, "lock_repay_clients: %d\n", atomic_read(&obd->obd_lock_replay_clients)); seq_printf(m, "completed_clients: %d\n", atomic_read(&obd->obd_connected_clients) - atomic_read(&obd->obd_lock_replay_clients)); seq_printf(m, "evicted_clients: %d\n", obd->obd_stale_clients); seq_printf(m, "replayed_requests: %d\n", obd->obd_replayed_requests); seq_printf(m, "queued_requests: %d\n", obd->obd_requests_queued_for_recovery); seq_printf(m, "next_transno: %lld\n", obd->obd_next_recovery_transno); out: return 0; } EXPORT_SYMBOL(lprocfs_recovery_status_seq_show); ssize_t ir_factor_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_ir_factor); } EXPORT_SYMBOL(ir_factor_show); ssize_t ir_factor_store(struct kobject *kobj, struct attribute *attr, const char *buffer, size_t count) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); int val; int rc; rc = kstrtoint(buffer, 10, &val); if (rc) return rc; if (val < OBD_IR_FACTOR_MIN || val > OBD_IR_FACTOR_MAX) return -EINVAL; obd->obd_recovery_ir_factor = val; return count; } EXPORT_SYMBOL(ir_factor_store); int lprocfs_checksum_dump_seq_show(struct seq_file *m, void *data) { struct obd_device *obd = m->private; LASSERT(obd != NULL); seq_printf(m, "%d\n", obd->obd_checksum_dump); return 0; } EXPORT_SYMBOL(lprocfs_checksum_dump_seq_show); ssize_t lprocfs_checksum_dump_seq_write(struct file *file, const char __user *buffer, size_t count, loff_t *off) { struct seq_file *m = file->private_data; struct obd_device *obd = m->private; bool val; int rc; LASSERT(obd != NULL); rc = kstrtobool_from_user(buffer, count, &val); if (rc) return rc; obd->obd_checksum_dump = val; return count; } EXPORT_SYMBOL(lprocfs_checksum_dump_seq_write); ssize_t recovery_time_soft_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_timeout); } EXPORT_SYMBOL(recovery_time_soft_show); ssize_t recovery_time_soft_store(struct kobject *kobj, struct attribute *attr, const char *buffer, size_t count) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); unsigned int val; int rc; rc = kstrtouint(buffer, 0, &val); if (rc) return rc; obd->obd_recovery_timeout = val; return count; } EXPORT_SYMBOL(recovery_time_soft_store); ssize_t recovery_time_hard_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_time_hard); } EXPORT_SYMBOL(recovery_time_hard_show); ssize_t recovery_time_hard_store(struct kobject *kobj, struct attribute *attr, const char *buffer, size_t count) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); unsigned int val; int rc; rc = kstrtouint(buffer, 0, &val); if (rc) return rc; obd->obd_recovery_time_hard = val; return count; } EXPORT_SYMBOL(recovery_time_hard_store); ssize_t instance_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct obd_device_target *target = &obd->u.obt; LASSERT(target->obt_magic == OBT_MAGIC); return scnprintf(buf, PAGE_SIZE, "%u\n", obd->u.obt.obt_instance); } EXPORT_SYMBOL(instance_show); #endif /* CONFIG_PROC_FS*/