-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License 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).
*
- * Lustre 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 for more details.
+ * 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
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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 <linux/lustre_lite.h>
-#include <linux/lprocfs_status.h>
+#include <linux/vfs.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include <lustre_osc.h>
+#include <cl_object.h>
+#include "mdc_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;
+ ssize_t len;
-int rd_uuid(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+ with_imp_locked(obd, imp, len)
+ len = sprintf(buf, "%d\n", !imp->imp_deactive);
+ return len;
+}
+
+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;
- struct obd_device* temp = (struct obd_device*)data;
- int len = 0;
- len += snprintf(page, count, "%s\n",temp->obd_uuid);
- return len;
+ 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",
+ val);
+ return count;
}
-int rd_blksize(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+LUSTRE_RW_ATTR(active);
+
+static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- return 0;
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ ssize_t len;
+ u32 max;
+
+ max = obd_get_max_rpcs_in_flight(&obd->u.cli);
+ len = sprintf(buf, "%u\n", max);
+
+ return len;
}
-int rd_kbtotal(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+
+static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
{
- return 0;
+ 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;
+
+ rc = obd_set_max_rpcs_in_flight(&obd->u.cli, val);
+ if (rc)
+ count = rc;
+
+ return count;
}
+LUSTRE_RW_ATTR(max_rpcs_in_flight);
-int rd_kbfree(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+static ssize_t max_mod_rpcs_in_flight_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- return 0;
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ u16 max;
+
+ max = obd_get_max_mod_rpcs_in_flight(&obd->u.cli);
+ return sprintf(buf, "%hu\n", max);
}
+static ssize_t max_mod_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);
+ u16 val;
+ int rc;
+
+ rc = kstrtou16(buffer, 10, &val);
+ if (rc)
+ return rc;
+
+ rc = obd_set_max_mod_rpcs_in_flight(&obd->u.cli, val);
+ if (rc)
+ count = rc;
-int rd_files(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+ return count;
+}
+LUSTRE_RW_ATTR(max_mod_rpcs_in_flight);
+
+static int mdc_max_dirty_mb_seq_show(struct seq_file *m, void *v)
{
- return 0;
+ struct obd_device *obd = m->private;
+ struct client_obd *cli = &obd->u.cli;
+
+ seq_printf(m, "%lu\n", PAGES_TO_MiB(cli->cl_dirty_max_pages));
+ return 0;
}
-int rd_filesfree(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+static ssize_t mdc_max_dirty_mb_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- return 0;
+ struct seq_file *sfl = file->private_data;
+ struct obd_device *obd = sfl->private;
+ struct client_obd *cli = &obd->u.cli;
+ char kernbuf[22] = "";
+ u64 pages_number;
+ int rc;
+
+ if (count >= sizeof(kernbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+ kernbuf[count] = 0;
+
+ rc = sysfs_memparse(kernbuf, count, &pages_number, "MiB");
+ if (rc < 0)
+ return rc;
+
+ /* MB -> pages */
+ pages_number = round_up(pages_number, 1024 * 1024) >> PAGE_SHIFT;
+ if (pages_number <= 0 ||
+ 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;
}
+LPROC_SEQ_FOPS(mdc_max_dirty_mb);
-int rd_filegroups(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+static ssize_t contention_seconds_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- return 0;
+ 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);
+ time64_t val;
+ int rc;
+
+ rc = kstrtoll(buffer, 0, &val);
+ if (rc)
+ return rc;
+
+ od->od_contention_time = val;
+
+ return count;
}
-int rd_conn_uuid(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+LUSTRE_RW_ATTR(contention_seconds);
+
+LUSTRE_ATTR(mds_conn_uuid, 0444, conn_uuid_show, NULL);
+LUSTRE_RO_ATTR(conn_uuid);
+
+LUSTRE_RW_ATTR(ping);
+
+static int mdc_cached_mb_seq_show(struct seq_file *m, void *v)
{
- struct obd_device* temp = (struct obd_device*)data;
- struct client_obd* cli = &temp->u.cli;
- struct obd_import* imp = &cli->cl_import;
- int len = 0;
-
- len += snprintf(page, count, "%s\n",imp->imp_connection->c_remote_uuid);
- return len;
+ 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;
}
-int rd_server_uuid(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+/* shrink the number of caching pages to a specific number */
+static ssize_t
+mdc_cached_mb_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device* temp = (struct obd_device*)data;
- struct client_obd* cli = &temp->u.cli;
- int len = 0;
-
- len += snprintf(page, count, "%s\n",cli->cl_target_uuid);
- return len;
+ struct seq_file *sfl = file->private_data;
+ struct obd_device *obd = sfl->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(mdc_cached_mb);
-int rd_server_name(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+static int mdc_unstable_stats_seq_show(struct seq_file *m, void *v)
{
- return 0;
-
+ 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(mdc_unstable_stats);
-struct lprocfs_vars status_var_nm_1[] = {
- {"status/uuid", rd_uuid, 0, 0},
- {"status/blocksize",rd_blksize, 0, 0},
- {"status/kbytestotal",rd_kbtotal, 0, 0},
- {"status/kbytesfree", rd_kbfree, 0, 0},
- {"status/files", rd_files, 0, 0},
- {"status/filesfree", rd_filesfree, 0, 0},
- {"status/filegroups", rd_filegroups, 0, 0},
- {"status/mds_server_uuid", rd_server_uuid, 0, 0},
- {"status/mds_conn_uuid", rd_conn_uuid, 0, 0},
- {0}
-};
-int rd_numrefs(char* page, char **start, off_t off, int count, int *eof,
- void *data)
+static ssize_t mdc_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_mod_rpcs_hist);
+
+ 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;
+}
+
+static int mdc_rpc_stats_seq_show(struct seq_file *seq, void *v)
{
- struct obd_type* class = (struct obd_type*)data;
- int len = 0;
- len += snprintf(page, count, "%d\n", class->typ_refcnt);
- return len;
+ 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;
+
+ obd_mod_rpc_stats_seq_show(cli, seq);
+
+ spin_lock(&cli->cl_loi_list_lock);
+
+ seq_printf(seq, "\nread 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 = 1; 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;
+}
+LPROC_SEQ_FOPS(mdc_rpc_stats);
+
+static int mdc_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;
}
-struct lprocfs_vars status_class_var[] = {
- {"status/num_refs", rd_numrefs, 0, 0},
- {0}
+static ssize_t mdc_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(mdc_stats);
+
+static int mdc_dom_min_repsize_seq_show(struct seq_file *m, void *v)
+{
+ struct obd_device *obd = m->private;
+
+ seq_printf(m, "%u\n", obd->u.cli.cl_dom_min_inline_repsize);
+
+ return 0;
+}
+
+static ssize_t mdc_dom_min_repsize_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;
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint_from_user(buffer, count, 0, &val);
+ if (rc)
+ return rc;
+
+ if (val > MDC_DOM_MAX_INLINE_REPSIZE)
+ return -ERANGE;
+
+ obd->u.cli.cl_dom_min_inline_repsize = val;
+ return count;
+}
+LPROC_SEQ_FOPS(mdc_dom_min_repsize);
+
+LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
+LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid);
+LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts);
+LPROC_SEQ_FOPS_RO_TYPE(mdc, state);
+LPROC_SEQ_FOPS_RW_TYPE(mdc, obd_max_pages_per_rpc);
+LPROC_SEQ_FOPS_RW_TYPE(mdc, import);
+LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov);
+
+struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
+ { .name = "connect_flags",
+ .fops = &mdc_connect_flags_fops },
+ { .name = "mds_server_uuid",
+ .fops = &mdc_server_uuid_fops },
+ { .name = "max_pages_per_rpc",
+ .fops = &mdc_obd_max_pages_per_rpc_fops },
+ { .name = "max_dirty_mb",
+ .fops = &mdc_max_dirty_mb_fops },
+ { .name = "mdc_cached_mb",
+ .fops = &mdc_cached_mb_fops },
+ { .name = "timeouts",
+ .fops = &mdc_timeouts_fops },
+ { .name = "import",
+ .fops = &mdc_import_fops },
+ { .name = "state",
+ .fops = &mdc_state_fops },
+ { .name = "pinger_recov",
+ .fops = &mdc_pinger_recov_fops },
+ { .name = "rpc_stats",
+ .fops = &mdc_rpc_stats_fops },
+ { .name = "unstable_stats",
+ .fops = &mdc_unstable_stats_fops },
+ { .name = "mdc_stats",
+ .fops = &mdc_stats_fops },
+ { .name = "mdc_dom_min_repsize",
+ .fops = &mdc_dom_min_repsize_fops },
+ { NULL }
+};
+
+static struct attribute *mdc_attrs[] = {
+ &lustre_attr_active.attr,
+ &lustre_attr_max_rpcs_in_flight.attr,
+ &lustre_attr_max_mod_rpcs_in_flight.attr,
+ &lustre_attr_contention_seconds.attr,
+ &lustre_attr_mds_conn_uuid.attr,
+ &lustre_attr_conn_uuid.attr,
+ &lustre_attr_ping.attr,
+ NULL,
};
+
+int mdc_tunables_init(struct obd_device *obd)
+{
+ int rc;
+
+ obd->obd_ktype.default_attrs = mdc_attrs;
+ obd->obd_vars = lprocfs_mdc_obd_vars;
+
+ rc = lprocfs_obd_setup(obd, false);
+ if (rc)
+ goto out_failed;
+#ifdef CONFIG_PROC_FS
+ rc = lprocfs_alloc_md_stats(obd, 0);
+ if (rc) {
+ lprocfs_obd_cleanup(obd);
+ goto out_failed;
+ }
+#endif
+ rc = sptlrpc_lprocfs_cliobd_attach(obd);
+ if (rc) {
+#ifdef CONFIG_PROC_FS
+ lprocfs_free_md_stats(obd);
+#endif
+ lprocfs_obd_cleanup(obd);
+ goto out_failed;
+ }
+ ptlrpc_lprocfs_register_obd(obd);
+
+out_failed:
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff