diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/osc/lproc_osc.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/osc/lproc_osc.c | 843 |
1 files changed, 0 insertions, 843 deletions
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c deleted file mode 100644 index dc76c35ae801..000000000000 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ /dev/null @@ -1,843 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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, 2015, 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 <linux/statfs.h> -#include <obd_cksum.h> -#include <obd_class.h> -#include <lprocfs_status.h> -#include <linux/seq_file.h> -#include "osc_internal.h" - -static ssize_t active_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - - return sprintf(buf, "%d\n", !dev->u.cli.cl_import->imp_deactive); -} - -static ssize_t active_store(struct kobject *kobj, struct attribute *attr, - const char *buffer, - size_t count) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - int rc; - unsigned long val; - - rc = kstrtoul(buffer, 10, &val); - if (rc) - return rc; - if (val > 1) - return -ERANGE; - - /* opposite senses */ - if (dev->u.cli.cl_import->imp_deactive == val) - rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val); - else - CDEBUG(D_CONFIG, "activate %ld: ignoring repeat request\n", - 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 *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - - return sprintf(buf, "%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 *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - int rc; - unsigned long val; - int adding, added, req_count; - - rc = kstrtoul(buffer, 10, &val); - if (rc) - return rc; - - if (val < 1 || val > OSC_MAX_RIF_MAX) - return -ERANGE; - - adding = 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 *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - long val; - int mult; - - spin_lock(&cli->cl_loi_list_lock); - val = cli->cl_dirty_max_pages; - spin_unlock(&cli->cl_loi_list_lock); - - mult = 1 << (20 - PAGE_SHIFT); - return lprocfs_read_frac_helper(buf, PAGE_SIZE, val, mult); -} - -static ssize_t max_dirty_mb_store(struct kobject *kobj, - struct attribute *attr, - const char *buffer, - size_t count) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - int rc; - unsigned long pages_number; - - rc = kstrtoul(buffer, 10, &pages_number); - if (rc) - return rc; - - pages_number *= 1 << (20 - PAGE_SHIFT); /* MB -> pages */ - - if (pages_number <= 0 || - pages_number >= OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_SHIFT) || - pages_number > 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); - -static int osc_cached_mb_seq_show(struct seq_file *m, void *v) -{ - struct obd_device *dev = m->private; - struct client_obd *cli = &dev->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 obd_device *dev = ((struct seq_file *)file->private_data)->private; - struct client_obd *cli = &dev->u.cli; - long pages_number, rc; - char kernbuf[128]; - int mult; - u64 val; - - if (count >= sizeof(kernbuf)) - return -EINVAL; - - if (copy_from_user(kernbuf, buffer, count)) - return -EFAULT; - kernbuf[count] = 0; - - mult = 1 << (20 - PAGE_SHIFT); - buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) - - kernbuf; - rc = lprocfs_write_frac_u64_helper(buffer, count, &val, mult); - if (rc) - return rc; - - if (val > LONG_MAX) - return -ERANGE; - pages_number = (long)val; - - if (pages_number < 0) - return -ERANGE; - - 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 *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - int len; - - spin_lock(&cli->cl_loi_list_lock); - len = sprintf(buf, "%lu\n", cli->cl_dirty_pages << PAGE_SHIFT); - spin_unlock(&cli->cl_loi_list_lock); - - return len; -} -LUSTRE_RO_ATTR(cur_dirty_bytes); - -static ssize_t cur_grant_bytes_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - int len; - - spin_lock(&cli->cl_loi_list_lock); - len = sprintf(buf, "%lu\n", cli->cl_avail_grant); - spin_unlock(&cli->cl_loi_list_lock); - - return len; -} - -static ssize_t cur_grant_bytes_store(struct kobject *kobj, - struct attribute *attr, - const char *buffer, - size_t count) -{ - struct obd_device *obd = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &obd->u.cli; - int rc; - unsigned long long val; - - rc = kstrtoull(buffer, 10, &val); - if (rc) - return rc; - - /* this is only for shrinking grant */ - spin_lock(&cli->cl_loi_list_lock); - if (val >= cli->cl_avail_grant) { - spin_unlock(&cli->cl_loi_list_lock); - return -EINVAL; - } - spin_unlock(&cli->cl_loi_list_lock); - - if (cli->cl_import->imp_state == LUSTRE_IMP_FULL) - rc = osc_shrink_grant_to_target(cli, val); - if (rc) - return rc; - return count; -} -LUSTRE_RW_ATTR(cur_grant_bytes); - -static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - int len; - - spin_lock(&cli->cl_loi_list_lock); - len = sprintf(buf, "%lu\n", cli->cl_lost_grant); - spin_unlock(&cli->cl_loi_list_lock); - - return len; -} -LUSTRE_RO_ATTR(cur_lost_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_kobj); - - return sprintf(buf, "%d\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_kobj); - int rc; - unsigned long val; - - rc = kstrtoul(buffer, 10, &val); - if (rc) - return rc; - - if (val <= 0) - return -ERANGE; - - obd->u.cli.cl_grant_shrink_interval = val; - - 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_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_kobj); - int rc; - unsigned long val; - - rc = kstrtoul(buffer, 10, &val); - if (rc) - return rc; - - obd->u.cli.cl_checksum = (val ? 1 : 0); - - 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) - return 0; - - for (i = 0; i < ARRAY_SIZE(cksum_name); i++) { - if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0) - continue; - if (obd->u.cli.cl_cksum_type == (1 << i)) - seq_printf(m, "[%s] ", cksum_name[i]); - else - seq_printf(m, "%s ", cksum_name[i]); - } - seq_putc(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 obd_device *obd = ((struct seq_file *)file->private_data)->private; - int i; - - DECLARE_CKSUM_NAME; - char kernbuf[10]; - - if (!obd) - 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 (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0) - continue; - if (!strcmp(kernbuf, cksum_name[i])) { - obd->u.cli.cl_cksum_type = 1 << i; - return count; - } - } - return -EINVAL; -} - -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_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_kobj); - int rc; - unsigned long val; - - rc = kstrtoul(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 contention_seconds_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct obd_device *obd = container_of(kobj, struct obd_device, - obd_kobj); - struct osc_device *od = obd2osc_dev(obd); - - return sprintf(buf, "%u\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_kobj); - struct osc_device *od = obd2osc_dev(obd); - int rc; - int val; - - rc = kstrtoint(buffer, 10, &val); - if (rc) - return rc; - - if (val < 0) - return -EINVAL; - - 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_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_kobj); - struct osc_device *od = obd2osc_dev(obd); - int rc; - unsigned int val; - - rc = kstrtouint(buffer, 10, &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_kobj); - - return sprintf(buf, "%u\n", - atomic_read(&obd->u.cli.cl_destroy_in_flight)); -} -LUSTRE_RO_ATTR(destroys_in_flight); - -static ssize_t max_pages_per_rpc_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - - return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc); -} - -static ssize_t max_pages_per_rpc_store(struct kobject *kobj, - struct attribute *attr, - const char *buffer, - size_t count) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data; - int chunk_mask, rc; - unsigned long long val; - - rc = kstrtoull(buffer, 10, &val); - if (rc) - return rc; - - /* if the max_pages is specified in bytes, convert to pages */ - if (val >= ONE_MB_BRW_SIZE) - val >>= PAGE_SHIFT; - - chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_SHIFT)) - 1); - /* max_pages_per_rpc must be chunk aligned */ - val = (val + ~chunk_mask) & chunk_mask; - if (!val || (ocd->ocd_brw_size && - val > ocd->ocd_brw_size >> PAGE_SHIFT)) { - return -ERANGE; - } - spin_lock(&cli->cl_loi_list_lock); - cli->cl_max_pages_per_rpc = val; - client_adjust_max_dirty(cli); - spin_unlock(&cli->cl_loi_list_lock); - - return count; -} -LUSTRE_RW_ATTR(max_pages_per_rpc); - -static ssize_t unstable_stats_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct obd_device *dev = container_of(kobj, struct obd_device, - obd_kobj); - struct client_obd *cli = &dev->u.cli; - long pages; - int mb; - - pages = atomic_long_read(&cli->cl_unstable_count); - mb = (pages * PAGE_SIZE) >> 20; - - return sprintf(buf, "unstable_pages: %20ld\n" - "unstable_mb: %10d\n", pages, mb); -} -LUSTRE_RO_ATTR(unstable_stats); - -LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags); -LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid); -LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid); -LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts); -LPROC_SEQ_FOPS_RO_TYPE(osc, state); - -LPROC_SEQ_FOPS_WR_ONLY(osc, ping); - -LPROC_SEQ_FOPS_RW_TYPE(osc, import); -LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov); - -static struct lprocfs_vars lprocfs_osc_obd_vars[] = { - { "ping", &osc_ping_fops, NULL, 0222 }, - { "connect_flags", &osc_connect_flags_fops, NULL, 0 }, - /*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/ - { "ost_server_uuid", &osc_server_uuid_fops, NULL, 0 }, - { "ost_conn_uuid", &osc_conn_uuid_fops, NULL, 0 }, - { "osc_cached_mb", &osc_cached_mb_fops, NULL }, - { "checksum_type", &osc_checksum_type_fops, NULL }, - { "timeouts", &osc_timeouts_fops, NULL, 0 }, - { "import", &osc_import_fops, NULL }, - { "state", &osc_state_fops, NULL, 0 }, - { "pinger_recov", &osc_pinger_recov_fops, NULL }, - { NULL } -}; - -#define pct(a, b) (b ? a * 100 / b : 0) - -static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v) -{ - struct timespec64 now; - struct obd_device *dev = seq->private; - struct client_obd *cli = &dev->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: %llu.%9lu (secs.usecs)\n", - (s64)now.tv_sec, (unsigned long)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_puts(seq, "\n\t\t\tread\t\t\twrite\n"); - seq_puts(seq, "pages per rpc rpcs % cum % |"); - seq_puts(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 %3lu %3lu | %10lu %3lu %3lu\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_puts(seq, "\n\t\t\tread\t\t\twrite\n"); - seq_puts(seq, "rpcs in flight rpcs % cum % |"); - seq_puts(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 %3lu %3lu | %10lu %3lu %3lu\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_puts(seq, "\n\t\t\tread\t\t\twrite\n"); - seq_puts(seq, "offset rpcs % cum % |"); - seq_puts(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 %3lu %3lu | %10lu %3lu %3lu\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; -} - -#undef pct - -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 *dev = seq->private; - struct client_obd *cli = &dev->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 *dev = seq->private; - struct osc_stats *stats = &obd2osc_dev(dev)->od_stats; - - ktime_get_real_ts64(&now); - - seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n", - (s64)now.tv_sec, (unsigned long)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 *dev = seq->private; - struct osc_stats *stats = &obd2osc_dev(dev)->od_stats; - - memset(stats, 0, sizeof(*stats)); - return len; -} - -LPROC_SEQ_FOPS(osc_stats); - -int lproc_osc_attach_seqstat(struct obd_device *dev) -{ - int rc; - - rc = ldebugfs_seq_create(dev->obd_debugfs_entry, "osc_stats", 0644, - &osc_stats_fops, dev); - if (rc == 0) - rc = ldebugfs_obd_seq_create(dev, "rpc_stats", 0644, - &osc_rpc_stats_fops, dev); - - return rc; -} - -static struct attribute *osc_attrs[] = { - &lustre_attr_active.attr, - &lustre_attr_checksums.attr, - &lustre_attr_contention_seconds.attr, - &lustre_attr_cur_dirty_bytes.attr, - &lustre_attr_cur_grant_bytes.attr, - &lustre_attr_cur_lost_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_pages_per_rpc.attr, - &lustre_attr_max_rpcs_in_flight.attr, - &lustre_attr_resend_count.attr, - &lustre_attr_unstable_stats.attr, - NULL, -}; - -static const struct attribute_group osc_attr_group = { - .attrs = osc_attrs, -}; - -void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars) -{ - lvars->sysfs_vars = &osc_attr_group; - lvars->obd_vars = lprocfs_osc_obd_vars; -} |