/* * 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) 2011, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. */ #define DEBUG_SUBSYSTEM S_CLASS #include #include #include #include #include #include #include #include "osc_internal.h" static ssize_t active_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct obd_import *imp; int rc; with_imp_locked(obd, imp, rc) rc = sprintf(buf, "%d\n", !imp->imp_deactive); return rc; } static ssize_t active_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); bool val; int rc; rc = kstrtobool(buffer, &val); if (rc) return rc; /* opposite senses */ if (obd->u.cli.cl_import->imp_deactive == val) rc = ptlrpc_set_import_active(obd->u.cli.cl_import, val); else CDEBUG(D_CONFIG, "activate %u: ignoring repeat request\n", (unsigned int)val); return count; } LUSTRE_RW_ATTR(active); static ssize_t max_rpcs_in_flight_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct client_obd *cli = &obd->u.cli; return scnprintf(buf, PAGE_SIZE, "%u\n", cli->cl_max_rpcs_in_flight); } static ssize_t max_rpcs_in_flight_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); struct client_obd *cli = &obd->u.cli; int adding, added, req_count; unsigned int val; int rc; rc = kstrtouint(buffer, 0, &val); if (rc) return rc; if (val == 0 || val > OSC_MAX_RIF_MAX) return -ERANGE; adding = (int)val - cli->cl_max_rpcs_in_flight; req_count = atomic_read(&osc_pool_req_count); if (adding > 0 && req_count < osc_reqpool_maxreqcount) { /* * There might be some race which will cause over-limit * allocation, but it is fine. */ if (req_count + adding > osc_reqpool_maxreqcount) adding = osc_reqpool_maxreqcount - req_count; added = osc_rq_pool->prp_populate(osc_rq_pool, adding); atomic_add(added, &osc_pool_req_count); } spin_lock(&cli->cl_loi_list_lock); cli->cl_max_rpcs_in_flight = val; client_adjust_max_dirty(cli); spin_unlock(&cli->cl_loi_list_lock); return count; } LUSTRE_RW_ATTR(max_rpcs_in_flight); static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct client_obd *cli = &obd->u.cli; return scnprintf(buf, PAGE_SIZE, "%lu\n", PAGES_TO_MiB(cli->cl_dirty_max_pages)); } static ssize_t max_dirty_mb_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); struct client_obd *cli = &obd->u.cli; unsigned long pages_number, max_dirty_mb; int rc; rc = kstrtoul(buffer, 10, &max_dirty_mb); if (rc) return rc; pages_number = MiB_TO_PAGES(max_dirty_mb); if (pages_number >= MiB_TO_PAGES(OSC_MAX_DIRTY_MB_MAX) || pages_number > cfs_totalram_pages() / 4) /* 1/4 of RAM */ return -ERANGE; spin_lock(&cli->cl_loi_list_lock); cli->cl_dirty_max_pages = pages_number; osc_wake_cache_waiters(cli); spin_unlock(&cli->cl_loi_list_lock); return count; } LUSTRE_RW_ATTR(max_dirty_mb); LUSTRE_ATTR(ost_conn_uuid, 0444, conn_uuid_show, NULL); LUSTRE_RO_ATTR(conn_uuid); LUSTRE_RW_ATTR(ping); static int osc_cached_mb_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; struct client_obd *cli = &obd->u.cli; int shift = 20 - PAGE_SHIFT; seq_printf(m, "used_mb: %ld\n" "busy_cnt: %ld\n" "reclaim: %llu\n", (atomic_long_read(&cli->cl_lru_in_list) + atomic_long_read(&cli->cl_lru_busy)) >> shift, atomic_long_read(&cli->cl_lru_busy), cli->cl_lru_reclaim); return 0; } /* shrink the number of caching pages to a specific number */ static ssize_t osc_cached_mb_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 client_obd *cli = &obd->u.cli; u64 pages_number; const char *tmp; long rc; char kernbuf[128]; if (count >= sizeof(kernbuf)) return -EINVAL; if (copy_from_user(kernbuf, buffer, count)) return -EFAULT; kernbuf[count] = 0; tmp = lprocfs_find_named_value(kernbuf, "used_mb:", &count); rc = sysfs_memparse(tmp, count, &pages_number, "MiB"); if (rc < 0) return rc; pages_number >>= PAGE_SHIFT; rc = atomic_long_read(&cli->cl_lru_in_list) - pages_number; if (rc > 0) { struct lu_env *env; __u16 refcheck; env = cl_env_get(&refcheck); if (!IS_ERR(env)) { (void)osc_lru_shrink(env, cli, rc, true); cl_env_put(env, &refcheck); } } return count; } LPROC_SEQ_FOPS(osc_cached_mb); static ssize_t cur_dirty_bytes_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct client_obd *cli = &obd->u.cli; return scnprintf(buf, PAGE_SIZE, "%lu\n", cli->cl_dirty_pages << PAGE_SHIFT); } LUSTRE_RO_ATTR(cur_dirty_bytes); static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; struct client_obd *cli = &obd->u.cli; seq_printf(m, "%lu\n", cli->cl_avail_grant); return 0; } static ssize_t osc_cur_grant_bytes_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 client_obd *cli = &obd->u.cli; struct obd_import *imp; char kernbuf[22] = ""; u64 val; int rc; if (obd == NULL) return 0; if (count >= sizeof(kernbuf)) return -EINVAL; if (copy_from_user(kernbuf, buffer, count)) return -EFAULT; kernbuf[count] = 0; rc = sysfs_memparse(kernbuf, count, &val, "MiB"); if (rc < 0) return rc; /* this is only for shrinking grant */ if (val >= cli->cl_avail_grant) return 0; with_imp_locked(obd, imp, rc) if (imp->imp_state == LUSTRE_IMP_FULL) rc = osc_shrink_grant_to_target(cli, val); return rc ? rc : count; } LPROC_SEQ_FOPS(osc_cur_grant_bytes); static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct client_obd *cli = &obd->u.cli; return scnprintf(buf, PAGE_SIZE, "%lu\n", cli->cl_lost_grant); } LUSTRE_RO_ATTR(cur_lost_grant_bytes); static ssize_t cur_dirty_grant_bytes_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct client_obd *cli = &obd->u.cli; return scnprintf(buf, PAGE_SIZE, "%lu\n", cli->cl_dirty_grant); } LUSTRE_RO_ATTR(cur_dirty_grant_bytes); static ssize_t grant_shrink_interval_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return sprintf(buf, "%lld\n", obd->u.cli.cl_grant_shrink_interval); } static ssize_t grant_shrink_interval_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; if (val == 0) return -ERANGE; obd->u.cli.cl_grant_shrink_interval = val; osc_update_next_shrink(&obd->u.cli); osc_schedule_grant_work(); return count; } LUSTRE_RW_ATTR(grant_shrink_interval); static ssize_t checksums_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return sprintf(buf, "%d\n", obd->u.cli.cl_checksum ? 1 : 0); } static ssize_t checksums_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); bool val; int rc; rc = kstrtobool(buffer, &val); if (rc) return rc; obd->u.cli.cl_checksum = val; return count; } LUSTRE_RW_ATTR(checksums); static int osc_checksum_type_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; int i; DECLARE_CKSUM_NAME; if (obd == NULL) return 0; for (i = 0; i < ARRAY_SIZE(cksum_name); i++) { if ((BIT(i) & obd->u.cli.cl_supp_cksum_types) == 0) continue; if (obd->u.cli.cl_cksum_type == BIT(i)) seq_printf(m, "[%s] ", cksum_name[i]); else seq_printf(m, "%s ", cksum_name[i]); } seq_printf(m, "\n"); return 0; } static ssize_t osc_checksum_type_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; int i; DECLARE_CKSUM_NAME; char kernbuf[10]; int rc = -EINVAL; if (obd == NULL) return 0; if (count > sizeof(kernbuf) - 1) return -EINVAL; if (copy_from_user(kernbuf, buffer, count)) return -EFAULT; if (count > 0 && kernbuf[count - 1] == '\n') kernbuf[count - 1] = '\0'; else kernbuf[count] = '\0'; for (i = 0; i < ARRAY_SIZE(cksum_name); i++) { if (strcmp(kernbuf, cksum_name[i]) == 0) { obd->u.cli.cl_preferred_cksum_type = BIT(i); if (obd->u.cli.cl_supp_cksum_types & BIT(i)) { obd->u.cli.cl_cksum_type = BIT(i); rc = count; } else { rc = -ENOTSUPP; } break; } } return rc; } LPROC_SEQ_FOPS(osc_checksum_type); static ssize_t resend_count_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return sprintf(buf, "%u\n", atomic_read(&obd->u.cli.cl_resends)); } static ssize_t resend_count_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, 10, &val); if (rc) return rc; atomic_set(&obd->u.cli.cl_resends, val); return count; } LUSTRE_RW_ATTR(resend_count); static ssize_t checksum_dump_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return sprintf(buf, "%d\n", obd->u.cli.cl_checksum_dump ? 1 : 0); } static ssize_t checksum_dump_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); bool val; int rc; rc = kstrtobool(buffer, &val); if (rc) return rc; obd->u.cli.cl_checksum_dump = val; return count; } LUSTRE_RW_ATTR(checksum_dump); static ssize_t contention_seconds_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct osc_device *od = obd2osc_dev(obd); return sprintf(buf, "%lld\n", od->od_contention_time); } static ssize_t contention_seconds_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); struct osc_device *od = obd2osc_dev(obd); unsigned int val; int rc; rc = kstrtouint(buffer, 0, &val); if (rc) return rc; od->od_contention_time = val; return count; } LUSTRE_RW_ATTR(contention_seconds); static ssize_t lockless_truncate_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct osc_device *od = obd2osc_dev(obd); return sprintf(buf, "%u\n", od->od_lockless_truncate); } static ssize_t lockless_truncate_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); struct osc_device *od = obd2osc_dev(obd); bool val; int rc; rc = kstrtobool(buffer, &val); if (rc) return rc; od->od_lockless_truncate = val; return count; } LUSTRE_RW_ATTR(lockless_truncate); static ssize_t destroys_in_flight_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); return sprintf(buf, "%u\n", atomic_read(&obd->u.cli.cl_destroy_in_flight)); } LUSTRE_RO_ATTR(destroys_in_flight); LPROC_SEQ_FOPS_RW_TYPE(osc, obd_max_pages_per_rpc); LUSTRE_RW_ATTR(short_io_bytes); #ifdef CONFIG_PROC_FS static int osc_unstable_stats_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; struct client_obd *cli = &obd->u.cli; long pages; int mb; pages = atomic_long_read(&cli->cl_unstable_count); mb = (pages * PAGE_SIZE) >> 20; seq_printf(m, "unstable_pages: %20ld\n" "unstable_mb: %10d\n", pages, mb); return 0; } LPROC_SEQ_FOPS_RO(osc_unstable_stats); static ssize_t idle_timeout_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct obd_import *imp; int ret; with_imp_locked(obd, imp, ret) ret = sprintf(buf, "%u\n", imp->imp_idle_timeout); return ret; } static ssize_t idle_timeout_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); struct obd_import *imp; struct ptlrpc_request *req; unsigned int idle_debug = 0; unsigned int val; int rc; if (strncmp(buffer, "debug", 5) == 0) { idle_debug = D_CONSOLE; } else if (strncmp(buffer, "nodebug", 6) == 0) { idle_debug = D_HA; } else { rc = kstrtouint(buffer, 10, &val); if (rc) return rc; if (val > CONNECTION_SWITCH_MAX) return -ERANGE; } with_imp_locked(obd, imp, rc) { if (idle_debug) { imp->imp_idle_debug = idle_debug; } else { if (!val) { /* initiate the connection if it's in IDLE state */ req = ptlrpc_request_alloc(imp, &RQF_OST_STATFS); if (req != NULL) ptlrpc_req_finished(req); } imp->imp_idle_timeout = val; } } return count; } LUSTRE_RW_ATTR(idle_timeout); static ssize_t idle_connect_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); struct obd_import *imp; struct ptlrpc_request *req; int rc; with_imp_locked(obd, imp, rc) { /* to initiate the connection if it's in IDLE state */ req = ptlrpc_request_alloc(imp, &RQF_OST_STATFS); if (req) ptlrpc_req_finished(req); ptlrpc_pinger_force(imp); } return rc ?: count; } LUSTRE_WO_ATTR(idle_connect); static ssize_t grant_shrink_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct obd_device *obd = container_of(kobj, struct obd_device, obd_kset.kobj); struct obd_import *imp; ssize_t len; with_imp_locked(obd, imp, len) len = scnprintf(buf, PAGE_SIZE, "%d\n", !imp->imp_grant_shrink_disabled && OCD_HAS_FLAG(&imp->imp_connect_data, GRANT_SHRINK)); return len; } static ssize_t grant_shrink_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); struct obd_import *imp; bool val; int rc; if (obd == NULL) return 0; rc = kstrtobool(buffer, &val); if (rc) return rc; with_imp_locked(obd, imp, rc) { spin_lock(&imp->imp_lock); imp->imp_grant_shrink_disabled = !val; spin_unlock(&imp->imp_lock); } return rc ?: count; } LUSTRE_RW_ATTR(grant_shrink); LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags); LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid); LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts); LPROC_SEQ_FOPS_RO_TYPE(osc, state); LPROC_SEQ_FOPS_RW_TYPE(osc, import); LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov); struct lprocfs_vars lprocfs_osc_obd_vars[] = { { .name = "connect_flags", .fops = &osc_connect_flags_fops }, { .name = "ost_server_uuid", .fops = &osc_server_uuid_fops }, { .name = "max_pages_per_rpc", .fops = &osc_obd_max_pages_per_rpc_fops }, { .name = "osc_cached_mb", .fops = &osc_cached_mb_fops }, { .name = "cur_grant_bytes", .fops = &osc_cur_grant_bytes_fops }, { .name = "checksum_type", .fops = &osc_checksum_type_fops }, { .name = "timeouts", .fops = &osc_timeouts_fops }, { .name = "import", .fops = &osc_import_fops }, { .name = "state", .fops = &osc_state_fops }, { .name = "pinger_recov", .fops = &osc_pinger_recov_fops }, { .name = "unstable_stats", .fops = &osc_unstable_stats_fops }, { NULL } }; static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v) { struct timespec64 now; struct obd_device *obd = seq->private; struct client_obd *cli = &obd->u.cli; unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum; int i; ktime_get_real_ts64(&now); spin_lock(&cli->cl_loi_list_lock); seq_printf(seq, "snapshot_time: %lld.%09lu (secs.nsecs)\n", (s64)now.tv_sec, now.tv_nsec); seq_printf(seq, "read RPCs in flight: %d\n", cli->cl_r_in_flight); seq_printf(seq, "write RPCs in flight: %d\n", cli->cl_w_in_flight); seq_printf(seq, "pending write pages: %d\n", atomic_read(&cli->cl_pending_w_pages)); seq_printf(seq, "pending read pages: %d\n", atomic_read(&cli->cl_pending_r_pages)); seq_printf(seq, "\n\t\t\tread\t\t\twrite\n"); seq_printf(seq, "pages per rpc rpcs %% cum %% |"); seq_printf(seq, " rpcs %% cum %%\n"); read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist); write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist); read_cum = 0; write_cum = 0; for (i = 0; i < OBD_HIST_MAX; i++) { unsigned long r = cli->cl_read_page_hist.oh_buckets[i]; unsigned long w = cli->cl_write_page_hist.oh_buckets[i]; read_cum += r; write_cum += w; seq_printf(seq, "%d:\t\t%10lu %3u %3u | %10lu %3u %3u\n", 1 << i, 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; } seq_printf(seq, "\n\t\t\tread\t\t\twrite\n"); seq_printf(seq, "rpcs in flight rpcs %% cum %% |"); seq_printf(seq, " rpcs %% cum %%\n"); read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist); write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist); read_cum = 0; write_cum = 0; for (i = 0; i < OBD_HIST_MAX; i++) { unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i]; unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i]; read_cum += r; write_cum += w; seq_printf(seq, "%d:\t\t%10lu %3u %3u | %10lu %3u %3u\n", i, 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; } seq_printf(seq, "\n\t\t\tread\t\t\twrite\n"); seq_printf(seq, "offset rpcs %% cum %% |"); seq_printf(seq, " rpcs %% cum %%\n"); read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist); write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist); read_cum = 0; write_cum = 0; for (i = 0; i < OBD_HIST_MAX; i++) { unsigned long r = cli->cl_read_offset_hist.oh_buckets[i]; unsigned long w = cli->cl_write_offset_hist.oh_buckets[i]; read_cum += r; write_cum += w; seq_printf(seq, "%d:\t\t%10lu %3u %3u | %10lu %3u %3u\n", (i == 0) ? 0 : 1 << (i - 1), 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; } spin_unlock(&cli->cl_loi_list_lock); return 0; } static ssize_t osc_rpc_stats_seq_write(struct file *file, const char __user *buf, size_t len, loff_t *off) { struct seq_file *seq = file->private_data; struct obd_device *obd = seq->private; struct client_obd *cli = &obd->u.cli; lprocfs_oh_clear(&cli->cl_read_rpc_hist); lprocfs_oh_clear(&cli->cl_write_rpc_hist); lprocfs_oh_clear(&cli->cl_read_page_hist); lprocfs_oh_clear(&cli->cl_write_page_hist); lprocfs_oh_clear(&cli->cl_read_offset_hist); lprocfs_oh_clear(&cli->cl_write_offset_hist); return len; } LPROC_SEQ_FOPS(osc_rpc_stats); static int osc_stats_seq_show(struct seq_file *seq, void *v) { struct timespec64 now; struct obd_device *obd = seq->private; struct osc_stats *stats = &obd2osc_dev(obd)->od_stats; ktime_get_real_ts64(&now); seq_printf(seq, "snapshot_time: %lld.%09lu (secs.nsecs)\n", (s64)now.tv_sec, now.tv_nsec); seq_printf(seq, "lockless_write_bytes\t\t%llu\n", stats->os_lockless_writes); seq_printf(seq, "lockless_read_bytes\t\t%llu\n", stats->os_lockless_reads); seq_printf(seq, "lockless_truncate\t\t%llu\n", stats->os_lockless_truncates); return 0; } static ssize_t osc_stats_seq_write(struct file *file, const char __user *buf, size_t len, loff_t *off) { struct seq_file *seq = file->private_data; struct obd_device *obd = seq->private; struct osc_stats *stats = &obd2osc_dev(obd)->od_stats; memset(stats, 0, sizeof(*stats)); return len; } LPROC_SEQ_FOPS(osc_stats); int lprocfs_osc_attach_seqstat(struct obd_device *obd) { int rc; rc = lprocfs_seq_create(obd->obd_proc_entry, "osc_stats", 0644, &osc_stats_fops, obd); if (rc == 0) rc = lprocfs_obd_seq_create(obd, "rpc_stats", 0644, &osc_rpc_stats_fops, obd); return rc; } #endif /* CONFIG_PROC_FS */ static struct attribute *osc_attrs[] = { &lustre_attr_active.attr, &lustre_attr_checksums.attr, &lustre_attr_checksum_dump.attr, &lustre_attr_contention_seconds.attr, &lustre_attr_cur_dirty_bytes.attr, &lustre_attr_cur_lost_grant_bytes.attr, &lustre_attr_cur_dirty_grant_bytes.attr, &lustre_attr_destroys_in_flight.attr, &lustre_attr_grant_shrink_interval.attr, &lustre_attr_lockless_truncate.attr, &lustre_attr_max_dirty_mb.attr, &lustre_attr_max_rpcs_in_flight.attr, &lustre_attr_short_io_bytes.attr, &lustre_attr_resend_count.attr, &lustre_attr_ost_conn_uuid.attr, &lustre_attr_conn_uuid.attr, &lustre_attr_ping.attr, &lustre_attr_idle_timeout.attr, &lustre_attr_idle_connect.attr, &lustre_attr_grant_shrink.attr, NULL, }; int osc_tunables_init(struct obd_device *obd) { int rc; obd->obd_vars = lprocfs_osc_obd_vars; obd->obd_ktype.default_attrs = osc_attrs; rc = lprocfs_obd_setup(obd, false); if (rc) return rc; #ifdef CONFIG_PROC_FS /* If the basic OSC proc tree construction succeeded then * lets do the rest. */ rc = lprocfs_osc_attach_seqstat(obd); if (rc) goto obd_cleanup; #endif /* CONFIG_PROC_FS */ rc = sptlrpc_lprocfs_cliobd_attach(obd); if (rc) goto obd_cleanup; ptlrpc_lprocfs_register_obd(obd); obd_cleanup: if (rc) lprocfs_obd_cleanup(obd); return rc; }