*
* 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.
+ * 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, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#define DEBUG_SUBSYSTEM S_CLASS
-#ifndef __KERNEL__
-# include <liblustre.h>
-#endif
#include <obd_support.h>
#include <obd.h>
#include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
#include <lustre_net.h>
#include <obd_class.h>
#include "ptlrpc_internal.h"
-struct ll_rpc_opcode {
+static struct ll_rpc_opcode {
__u32 opcode;
const char *opname;
} ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
{ OST_QUOTACHECK, "ost_quotacheck" },
{ OST_QUOTACTL, "ost_quotactl" },
{ OST_QUOTA_ADJUST_QUNIT, "ost_quota_adjust_qunit" },
+ { OST_LADVISE, "ost_ladvise" },
{ MDS_GETATTR, "mds_getattr" },
{ MDS_GETATTR_NAME, "mds_getattr_lock" },
{ MDS_CLOSE, "mds_close" },
{ MDS_READPAGE, "mds_readpage" },
{ MDS_CONNECT, "mds_connect" },
{ MDS_DISCONNECT, "mds_disconnect" },
- { MDS_GETSTATUS, "mds_getstatus" },
+ { MDS_GET_ROOT, "mds_get_root" },
{ MDS_STATFS, "mds_statfs" },
{ MDS_PIN, "mds_pin" },
{ MDS_UNPIN, "mds_unpin" },
{ MDS_WRITEPAGE, "mds_writepage" },
{ MDS_IS_SUBDIR, "mds_is_subdir" },
{ MDS_GET_INFO, "mds_get_info" },
+ { MDS_HSM_STATE_GET, "mds_hsm_state_get" },
+ { MDS_HSM_STATE_SET, "mds_hsm_state_set" },
+ { MDS_HSM_ACTION, "mds_hsm_action" },
+ { MDS_HSM_PROGRESS, "mds_hsm_progress" },
+ { MDS_HSM_REQUEST, "mds_hsm_request" },
+ { MDS_HSM_CT_REGISTER, "mds_hsm_ct_register" },
+ { MDS_HSM_CT_UNREGISTER, "mds_hsm_ct_unregister" },
+ { MDS_SWAP_LAYOUTS, "mds_swap_layouts" },
{ LDLM_ENQUEUE, "ldlm_enqueue" },
{ LDLM_CONVERT, "ldlm_convert" },
{ LDLM_CANCEL, "ldlm_cancel" },
{ MGS_TARGET_DEL, "mgs_target_del" },
{ MGS_SET_INFO, "mgs_set_info" },
{ MGS_CONFIG_READ, "mgs_config_read" },
- { OBD_PING, "obd_ping" },
- { OBD_LOG_CANCEL, "llog_origin_handle_cancel" },
- { OBD_QC_CALLBACK, "obd_quota_callback" },
- { OBD_IDX_READ, "dt_index_read" },
- { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_create" },
+ { OBD_PING, "obd_ping" },
+ { 401, /* was OBD_LOG_CANCEL */ "llog_cancel" },
+ { 402, /* was OBD_QC_CALLBACK */ "obd_quota_callback" },
+ { OBD_IDX_READ, "dt_index_read" },
+ { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_open" },
{ LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
{ LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
- { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
- { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
- { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
- { LLOG_CATINFO, "llog_catinfo" },
+ { 504, /*LLOG_ORIGIN_HANDLE_WRITE_REC*/"llog_origin_handle_write_rec" },
+ { 505, /* was LLOG_ORIGIN_HANDLE_CLOSE */ "llog_origin_handle_close" },
+ { 506, /* was LLOG_ORIGIN_CONNECT */ "llog_origin_connect" },
+ { 507, /* was LLOG_CATINFO */ "llog_catinfo" },
{ LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
{ LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
{ QUOTA_DQACQ, "quota_acquire" },
{ SEC_CTX_INIT, "sec_ctx_init" },
{ SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
{ SEC_CTX_FINI, "sec_ctx_fini" },
- { FLD_QUERY, "fld_query" }
+ { FLD_QUERY, "fld_query" },
+ { FLD_READ, "fld_read" },
+ { OUT_UPDATE, "out_update" },
+ { LFSCK_NOTIFY, "lfsck_notify" },
+ { LFSCK_QUERY, "lfsck_query" },
};
-struct ll_eopcode {
+static struct ll_eopcode {
__u32 opcode;
const char *opname;
} ll_eopcode_table[EXTRA_LAST_OPC] = {
- { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
- { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
- { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
- { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
- { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
- { MDS_REINT_SETATTR, "mds_reint_setattr" },
- { MDS_REINT_CREATE, "mds_reint_create" },
- { MDS_REINT_LINK, "mds_reint_link" },
- { MDS_REINT_UNLINK, "mds_reint_unlink" },
- { MDS_REINT_RENAME, "mds_reint_rename" },
- { MDS_REINT_OPEN, "mds_reint_open" },
- { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
- { BRW_READ_BYTES, "read_bytes" },
- { BRW_WRITE_BYTES, "write_bytes" },
+ { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
+ { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
+ { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
+ { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
+ { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
+ { MDS_REINT_SETATTR, "mds_reint_setattr" },
+ { MDS_REINT_CREATE, "mds_reint_create" },
+ { MDS_REINT_LINK, "mds_reint_link" },
+ { MDS_REINT_UNLINK, "mds_reint_unlink" },
+ { MDS_REINT_RENAME, "mds_reint_rename" },
+ { MDS_REINT_OPEN, "mds_reint_open" },
+ { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
+ { MDS_REINT_RESYNC, "mds_reint_resync" },
+ { BRW_READ_BYTES, "read_bytes" },
+ { BRW_WRITE_BYTES, "write_bytes" },
};
const char *ll_opcode2str(__u32 opcode)
return ll_rpc_opcode_table[offset].opname;
}
-const char* ll_eopcode2str(__u32 opcode)
+const int ll_str2opcode(const char *ops)
+{
+ int i;
+
+ for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
+ if (ll_rpc_opcode_table[i].opname != NULL &&
+ strcmp(ll_rpc_opcode_table[i].opname, ops) == 0)
+ return ll_rpc_opcode_table[i].opcode;
+ }
+
+ return -EINVAL;
+}
+
+static const char *ll_eopcode2str(__u32 opcode)
{
LASSERT(ll_eopcode_table[opcode].opcode == opcode);
return ll_eopcode_table[opcode].opname;
}
-#ifdef LPROCFS
-void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
- char *name, struct proc_dir_entry **procroot_ret,
- struct lprocfs_stats **stats_ret)
+
+static void
+ptlrpc_ldebugfs_register(struct dentry *root, char *dir, char *name,
+ struct dentry **debugfs_root_ret,
+ struct lprocfs_stats **stats_ret)
{
- struct proc_dir_entry *svc_procroot;
+ struct dentry *svc_debugfs_entry;
struct lprocfs_stats *svc_stats;
int i, rc;
unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
LPROCFS_CNTR_STDDEV;
- LASSERT(*procroot_ret == NULL);
- LASSERT(*stats_ret == NULL);
+ LASSERT(!*debugfs_root_ret);
+ LASSERT(!*stats_ret);
- svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
- if (svc_stats == NULL)
+ svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES + LUSTRE_MAX_OPCODES,
+ 0);
+ if (!svc_stats)
return;
if (dir) {
- svc_procroot = lprocfs_register(dir, root, NULL, NULL);
- if (IS_ERR(svc_procroot)) {
+ svc_debugfs_entry = ldebugfs_register(dir, root, NULL, NULL);
+ if (IS_ERR(svc_debugfs_entry)) {
lprocfs_free_stats(&svc_stats);
return;
}
} else {
- svc_procroot = root;
+ svc_debugfs_entry = root;
}
lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
for (i = 0; i < EXTRA_LAST_OPC; i++) {
char *units;
- switch(i) {
+ switch (i) {
case BRW_WRITE_BYTES:
case BRW_READ_BYTES:
units = "bytes";
ll_opcode2str(opcode), "usec");
}
- rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
+ rc = ldebugfs_register_stats(svc_debugfs_entry, name, svc_stats);
if (rc < 0) {
if (dir)
- lprocfs_remove(&svc_procroot);
+ ldebugfs_remove(&svc_debugfs_entry);
lprocfs_free_stats(&svc_stats);
} else {
if (dir)
- *procroot_ret = svc_procroot;
+ *debugfs_root_ret = svc_debugfs_entry;
*stats_ret = svc_stats;
}
}
static int
-ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ptlrpc_lprocfs_req_history_len_seq_show(struct seq_file *m, void *v)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = m->private;
struct ptlrpc_service_part *svcpt;
int total = 0;
int i;
- *eof = 1;
-
ptlrpc_service_for_each_part(svcpt, i, svc)
total += svcpt->scp_hist_nrqbds;
- return snprintf(page, count, "%d\n", total);
+ seq_printf(m, "%d\n", total);
+ return 0;
}
+
+LDEBUGFS_SEQ_FOPS_RO(ptlrpc_lprocfs_req_history_len);
+
static int
-ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ptlrpc_lprocfs_req_history_max_seq_show(struct seq_file *m, void *n)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = m->private;
struct ptlrpc_service_part *svcpt;
int total = 0;
int i;
- *eof = 1;
ptlrpc_service_for_each_part(svcpt, i, svc)
total += svc->srv_hist_nrqbds_cpt_max;
- return snprintf(page, count, "%d\n", total);
+ seq_printf(m, "%d\n", total);
+ return 0;
}
-static int
-ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+ptlrpc_lprocfs_req_history_max_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct ptlrpc_service *svc = data;
- int bufpages;
- int val;
- int rc;
+ struct seq_file *m = file->private_data;
+ struct ptlrpc_service *svc = m->private;
+ unsigned long long val;
+ int bufpages;
+ int rc;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc < 0)
- return rc;
+ rc = kstrtoull_from_user(buffer, count, 0, &val);
+ if (rc < 0)
+ return rc;
- if (val < 0)
- return -ERANGE;
+ if (val < 0 || val > INT_MAX)
+ return -ERANGE;
- /* This sanity check is more of an insanity check; we can still
- * hose a kernel by allowing the request history to grow too
- * far. */
- bufpages = (svc->srv_buf_size + CFS_PAGE_SIZE - 1) >> CFS_PAGE_SHIFT;
- if (val > cfs_num_physpages/(2 * bufpages))
- return -ERANGE;
+ /* This sanity check is more of an insanity check; we can still
+ * hose a kernel by allowing the request history to grow too
+ * far. The roundup to the next power of two is an empirical way
+ * to take care that request buffer is allocated in Slab and thus
+ * will be upgraded */
+ bufpages = (roundup_pow_of_two(svc->srv_buf_size) + PAGE_SIZE - 1) >>
+ PAGE_SHIFT;
+ /* do not allow history to consume more than half max number of rqbds */
+ if ((svc->srv_nrqbds_max == 0 && val > totalram_pages / (2 * bufpages)) ||
+ (svc->srv_nrqbds_max != 0 && val > svc->srv_nrqbds_max / 2))
+ return -ERANGE;
spin_lock(&svc->srv_lock);
if (val == 0)
svc->srv_hist_nrqbds_cpt_max = 0;
else
- svc->srv_hist_nrqbds_cpt_max = max(1, (val / svc->srv_ncpts));
+ svc->srv_hist_nrqbds_cpt_max =
+ max(1, ((int)val / svc->srv_ncpts));
spin_unlock(&svc->srv_lock);
return count;
}
+LDEBUGFS_SEQ_FOPS(ptlrpc_lprocfs_req_history_max);
+
static int
-ptlrpc_lprocfs_rd_threads_min(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ptlrpc_lprocfs_req_buffers_max_seq_show(struct seq_file *m, void *n)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = m->private;
- return snprintf(page, count, "%d\n",
- svc->srv_nthrs_cpt_init * svc->srv_ncpts);
+ seq_printf(m, "%d\n", svc->srv_nrqbds_max);
+ return 0;
}
-static int
-ptlrpc_lprocfs_wr_threads_min(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+ptlrpc_lprocfs_req_buffers_max_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct ptlrpc_service *svc = data;
- int val;
- int rc = lprocfs_write_helper(buffer, count, &val);
+ struct seq_file *m = file->private_data;
+ struct ptlrpc_service *svc = m->private;
+ int val;
+ int rc;
+ rc = kstrtoint_from_user(buffer, count, 0, &val);
+ if (rc < 0)
+ return rc;
+
+ if (val < svc->srv_nbuf_per_group && val != 0)
+ return -ERANGE;
+
+ spin_lock(&svc->srv_lock);
+
+ svc->srv_nrqbds_max = (uint)val;
+
+ spin_unlock(&svc->srv_lock);
+
+ return count;
+}
+
+LDEBUGFS_SEQ_FOPS(ptlrpc_lprocfs_req_buffers_max);
+
+static ssize_t threads_min_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+
+ return sprintf(buf, "%d\n", svc->srv_nthrs_cpt_init * svc->srv_ncpts);
+}
+
+static ssize_t threads_min_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+ unsigned long val;
+ int rc;
+
+ rc = kstrtoul(buffer, 10, &val);
if (rc < 0)
return rc;
return -ERANGE;
}
- svc->srv_nthrs_cpt_init = val / svc->srv_ncpts;
+ svc->srv_nthrs_cpt_init = (int)val / svc->srv_ncpts;
spin_unlock(&svc->srv_lock);
return count;
}
+LUSTRE_RW_ATTR(threads_min);
-static int
-ptlrpc_lprocfs_rd_threads_started(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t threads_started_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
struct ptlrpc_service_part *svcpt;
- int total = 0;
- int i;
+ int total = 0;
+ int i;
- LASSERT(svc->srv_parts != NULL);
ptlrpc_service_for_each_part(svcpt, i, svc)
total += svcpt->scp_nthrs_running;
- return snprintf(page, count, "%d\n", total);
+ return sprintf(buf, "%d\n", total);
}
+LUSTRE_RO_ATTR(threads_started);
-static int
-ptlrpc_lprocfs_rd_threads_max(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t threads_max_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
- return snprintf(page, count, "%d\n",
- svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
+ return sprintf(buf, "%d\n", svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
}
-static int
-ptlrpc_lprocfs_wr_threads_max(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t threads_max_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- struct ptlrpc_service *svc = data;
- int val;
- int rc = lprocfs_write_helper(buffer, count, &val);
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+ unsigned long val;
+ int rc;
+ rc = kstrtoul(buffer, 10, &val);
if (rc < 0)
return rc;
return -ERANGE;
}
- svc->srv_nthrs_cpt_limit = val / svc->srv_ncpts;
+ svc->srv_nthrs_cpt_limit = (int)val / svc->srv_ncpts;
spin_unlock(&svc->srv_lock);
return count;
}
+LUSTRE_RW_ATTR(threads_max);
+
+/**
+ * Translates \e ptlrpc_nrs_pol_state values to human-readable strings.
+ *
+ * \param[in] state The policy state
+ */
+static const char *nrs_state2str(enum ptlrpc_nrs_pol_state state)
+{
+ switch (state) {
+ default:
+ LBUG();
+ case NRS_POL_STATE_INVALID:
+ return "invalid";
+ case NRS_POL_STATE_STOPPED:
+ return "stopped";
+ case NRS_POL_STATE_STOPPING:
+ return "stopping";
+ case NRS_POL_STATE_STARTING:
+ return "starting";
+ case NRS_POL_STATE_STARTED:
+ return "started";
+ }
+}
+
+/**
+ * Obtains status information for \a policy.
+ *
+ * Information is copied in \a info.
+ *
+ * \param[in] policy The policy
+ * \param[out] info Holds returned status information
+ */
+void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy,
+ struct ptlrpc_nrs_pol_info *info)
+{
+ LASSERT(policy != NULL);
+ LASSERT(info != NULL);
+ assert_spin_locked(&policy->pol_nrs->nrs_lock);
+
+ CLASSERT(sizeof(info->pi_arg) == sizeof(policy->pol_arg));
+ memcpy(info->pi_name, policy->pol_desc->pd_name, NRS_POL_NAME_MAX);
+ memcpy(info->pi_arg, policy->pol_arg, sizeof(policy->pol_arg));
+
+ info->pi_fallback = !!(policy->pol_flags & PTLRPC_NRS_FL_FALLBACK);
+ info->pi_state = policy->pol_state;
+ /**
+ * XXX: These are accessed without holding
+ * ptlrpc_service_part::scp_req_lock.
+ */
+ info->pi_req_queued = policy->pol_req_queued;
+ info->pi_req_started = policy->pol_req_started;
+}
+
+/**
+ * Reads and prints policy status information for all policies of a PTLRPC
+ * service.
+ */
+static int ptlrpc_lprocfs_nrs_seq_show(struct seq_file *m, void *n)
+{
+ struct ptlrpc_service *svc = m->private;
+ struct ptlrpc_service_part *svcpt;
+ struct ptlrpc_nrs *nrs;
+ struct ptlrpc_nrs_policy *policy;
+ struct ptlrpc_nrs_pol_info *infos;
+ struct ptlrpc_nrs_pol_info tmp;
+ unsigned num_pols;
+ unsigned pol_idx = 0;
+ bool hp = false;
+ int i;
+ int rc = 0;
+ ENTRY;
+
+ /**
+ * Serialize NRS core lprocfs operations with policy registration/
+ * unregistration.
+ */
+ mutex_lock(&nrs_core.nrs_mutex);
+
+ /**
+ * Use the first service partition's regular NRS head in order to obtain
+ * the number of policies registered with NRS heads of this service. All
+ * service partitions will have the same number of policies.
+ */
+ nrs = nrs_svcpt2nrs(svc->srv_parts[0], false);
+
+ spin_lock(&nrs->nrs_lock);
+ num_pols = svc->srv_parts[0]->scp_nrs_reg.nrs_num_pols;
+ spin_unlock(&nrs->nrs_lock);
+
+ OBD_ALLOC(infos, num_pols * sizeof(*infos));
+ if (infos == NULL)
+ GOTO(out, rc = -ENOMEM);
+again:
+
+ ptlrpc_service_for_each_part(svcpt, i, svc) {
+ nrs = nrs_svcpt2nrs(svcpt, hp);
+ spin_lock(&nrs->nrs_lock);
+
+ pol_idx = 0;
+
+ list_for_each_entry(policy, &nrs->nrs_policy_list,
+ pol_list) {
+ LASSERT(pol_idx < num_pols);
+
+ nrs_policy_get_info_locked(policy, &tmp);
+ /**
+ * Copy values when handling the first service
+ * partition.
+ */
+ if (i == 0) {
+ memcpy(infos[pol_idx].pi_name, tmp.pi_name,
+ NRS_POL_NAME_MAX);
+ memcpy(infos[pol_idx].pi_arg, tmp.pi_arg,
+ sizeof(tmp.pi_arg));
+ memcpy(&infos[pol_idx].pi_state, &tmp.pi_state,
+ sizeof(tmp.pi_state));
+ infos[pol_idx].pi_fallback = tmp.pi_fallback;
+ /**
+ * For the rest of the service partitions
+ * sanity-check the values we get.
+ */
+ } else {
+ LASSERT(strncmp(infos[pol_idx].pi_name,
+ tmp.pi_name,
+ NRS_POL_NAME_MAX) == 0);
+ LASSERT(strncmp(infos[pol_idx].pi_arg,
+ tmp.pi_arg,
+ sizeof(tmp.pi_arg)) == 0);
+ /**
+ * Not asserting ptlrpc_nrs_pol_info::pi_state,
+ * because it may be different between
+ * instances of the same policy in different
+ * service partitions.
+ */
+ LASSERT(infos[pol_idx].pi_fallback ==
+ tmp.pi_fallback);
+ }
+
+ infos[pol_idx].pi_req_queued += tmp.pi_req_queued;
+ infos[pol_idx].pi_req_started += tmp.pi_req_started;
+
+ pol_idx++;
+ }
+ spin_unlock(&nrs->nrs_lock);
+ }
+
+ /**
+ * Policy status information output is in YAML format.
+ * For example:
+ *
+ * regular_requests:
+ * - name: fifo
+ * state: started
+ * fallback: yes
+ * queued: 0
+ * active: 0
+ *
+ * - name: crrn
+ * state: started
+ * fallback: no
+ * queued: 2015
+ * active: 384
+ *
+ * high_priority_requests:
+ * - name: fifo
+ * state: started
+ * fallback: yes
+ * queued: 0
+ * active: 2
+ *
+ * - name: crrn
+ * state: stopped
+ * fallback: no
+ * queued: 0
+ * active: 0
+ */
+ seq_printf(m, "%s\n", !hp ? "\nregular_requests:" :
+ "high_priority_requests:");
+
+ for (pol_idx = 0; pol_idx < num_pols; pol_idx++) {
+ if (strlen(infos[pol_idx].pi_arg) > 0)
+ seq_printf(m, " - name: %s %s\n",
+ infos[pol_idx].pi_name,
+ infos[pol_idx].pi_arg);
+ else
+ seq_printf(m, " - name: %s\n",
+ infos[pol_idx].pi_name);
+
+
+ seq_printf(m, " state: %s\n"
+ " fallback: %s\n"
+ " queued: %-20d\n"
+ " active: %-20d\n\n",
+ nrs_state2str(infos[pol_idx].pi_state),
+ infos[pol_idx].pi_fallback ? "yes" : "no",
+ (int)infos[pol_idx].pi_req_queued,
+ (int)infos[pol_idx].pi_req_started);
+ }
+
+ if (!hp && nrs_svc_has_hp(svc)) {
+ memset(infos, 0, num_pols * sizeof(*infos));
+
+ /**
+ * Redo the processing for the service's HP NRS heads' policies.
+ */
+ hp = true;
+ goto again;
+ }
+
+out:
+ if (infos)
+ OBD_FREE(infos, num_pols * sizeof(*infos));
+
+ mutex_unlock(&nrs_core.nrs_mutex);
+
+ RETURN(rc);
+}
+
+
+#define LPROCFS_NRS_WR_MAX_ARG (1024)
+/**
+ * The longest valid command string is the maxium policy name size, plus the
+ * length of the " reg" substring, plus the lenght of argument
+ */
+#define LPROCFS_NRS_WR_MAX_CMD (NRS_POL_NAME_MAX + sizeof(" reg") - 1 \
+ + LPROCFS_NRS_WR_MAX_ARG)
+
+/**
+ * Starts and stops a given policy on a PTLRPC service.
+ *
+ * Commands consist of the policy name, followed by an optional [reg|hp] token;
+ * if the optional token is omitted, the operation is performed on both the
+ * regular and high-priority (if the service has one) NRS head.
+ */
+static ssize_t
+ptlrpc_lprocfs_nrs_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct ptlrpc_service *svc = m->private;
+ enum ptlrpc_nrs_queue_type queue = PTLRPC_NRS_QUEUE_BOTH;
+ char *cmd;
+ char *cmd_copy = NULL;
+ char *policy_name;
+ char *queue_name;
+ int rc = 0;
+ ENTRY;
+
+ if (count >= LPROCFS_NRS_WR_MAX_CMD)
+ GOTO(out, rc = -EINVAL);
+
+ OBD_ALLOC(cmd, LPROCFS_NRS_WR_MAX_CMD);
+ if (cmd == NULL)
+ GOTO(out, rc = -ENOMEM);
+ /**
+ * strsep() modifies its argument, so keep a copy
+ */
+ cmd_copy = cmd;
+
+ if (copy_from_user(cmd, buffer, count))
+ GOTO(out, rc = -EFAULT);
+
+ cmd[count] = '\0';
+
+ policy_name = strsep(&cmd, " ");
+
+ if (strlen(policy_name) > NRS_POL_NAME_MAX - 1)
+ GOTO(out, rc = -EINVAL);
+
+ /**
+ * No [reg|hp] token has been specified
+ */
+ if (cmd == NULL)
+ goto default_queue;
+
+ queue_name = strsep(&cmd, " ");
+ /**
+ * The second token is either an optional [reg|hp] string,
+ * or arguments
+ */
+ if (strcmp(queue_name, "reg") == 0)
+ queue = PTLRPC_NRS_QUEUE_REG;
+ else if (strcmp(queue_name, "hp") == 0)
+ queue = PTLRPC_NRS_QUEUE_HP;
+ else {
+ if (cmd != NULL)
+ *(cmd - 1) = ' ';
+ cmd = queue_name;
+ }
+
+default_queue:
+
+ if (queue == PTLRPC_NRS_QUEUE_HP && !nrs_svc_has_hp(svc))
+ GOTO(out, rc = -ENODEV);
+ else if (queue == PTLRPC_NRS_QUEUE_BOTH && !nrs_svc_has_hp(svc))
+ queue = PTLRPC_NRS_QUEUE_REG;
+
+ /**
+ * Serialize NRS core lprocfs operations with policy registration/
+ * unregistration.
+ */
+ mutex_lock(&nrs_core.nrs_mutex);
+
+ rc = ptlrpc_nrs_policy_control(svc, queue, policy_name,
+ PTLRPC_NRS_CTL_START,
+ false, cmd);
+
+ mutex_unlock(&nrs_core.nrs_mutex);
+out:
+ if (cmd_copy)
+ OBD_FREE(cmd_copy, LPROCFS_NRS_WR_MAX_CMD);
+
+ RETURN(rc < 0 ? rc : count);
+}
+
+LDEBUGFS_SEQ_FOPS(ptlrpc_lprocfs_nrs);
+
+/** @} nrs */
struct ptlrpc_srh_iterator {
int srhi_idx;
struct ptlrpc_request *srhi_req;
};
-int
+static int
ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service_part *svcpt,
struct ptlrpc_srh_iterator *srhi,
__u64 seq)
{
- cfs_list_t *e;
+ struct list_head *e;
struct ptlrpc_request *req;
if (srhi->srhi_req != NULL &&
* be near the head), we shouldn't have to do long
* re-scans */
LASSERTF(srhi->srhi_seq == srhi->srhi_req->rq_history_seq,
- "%s:%d: seek seq "LPU64", request seq "LPU64"\n",
+ "%s:%d: seek seq %llu, request seq %llu\n",
svcpt->scp_service->srv_name, svcpt->scp_cpt,
srhi->srhi_seq, srhi->srhi_req->rq_history_seq);
- LASSERTF(!cfs_list_empty(&svcpt->scp_hist_reqs),
- "%s:%d: seek offset "LPU64", request seq "LPU64", "
- "last culled "LPU64"\n",
+ LASSERTF(!list_empty(&svcpt->scp_hist_reqs),
+ "%s:%d: seek offset %llu, request seq %llu, "
+ "last culled %llu\n",
svcpt->scp_service->srv_name, svcpt->scp_cpt,
seq, srhi->srhi_seq, svcpt->scp_hist_seq_culled);
e = &srhi->srhi_req->rq_history_list;
}
while (e != &svcpt->scp_hist_reqs) {
- req = cfs_list_entry(e, struct ptlrpc_request, rq_history_list);
+ req = list_entry(e, struct ptlrpc_request, rq_history_list);
if (req->rq_history_seq >= seq) {
srhi->srhi_seq = req->rq_history_seq;
if (i > cpt) /* make up the lowest position for this CPT */
*pos = PTLRPC_REQ_CPT2POS(svc, i);
+ mutex_lock(&svcpt->scp_mutex);
spin_lock(&svcpt->scp_lock);
rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi,
PTLRPC_REQ_POS2SEQ(svc, *pos));
spin_unlock(&svcpt->scp_lock);
+ mutex_unlock(&svcpt->scp_mutex);
if (rc == 0) {
*pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
srhi->srhi_idx = i;
seq = srhi->srhi_seq + (1 << svc->srv_cpt_bits);
}
+ mutex_lock(&svcpt->scp_mutex);
spin_lock(&svcpt->scp_lock);
rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, seq);
spin_unlock(&svcpt->scp_lock);
+ mutex_unlock(&svcpt->scp_mutex);
if (rc == 0) {
*pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
srhi->srhi_idx = i;
svcpt = svc->srv_parts[srhi->srhi_idx];
+ mutex_lock(&svcpt->scp_mutex);
spin_lock(&svcpt->scp_lock);
rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, srhi->srhi_seq);
- if (rc == 0) {
- req = srhi->srhi_req;
-
- /* Print common req fields.
- * CAVEAT EMPTOR: we're racing with the service handler
- * here. The request could contain any old crap, so you
- * must be just as careful as the service's request
- * parser. Currently I only print stuff here I know is OK
- * to look at coz it was set up in request_in_callback()!!! */
- seq_printf(s, LPD64":%s:%s:x"LPU64":%d:%s:%ld:%lds(%+lds) ",
- req->rq_history_seq, libcfs_nid2str(req->rq_self),
- libcfs_id2str(req->rq_peer), req->rq_xid,
- req->rq_reqlen, ptlrpc_rqphase2str(req),
- req->rq_arrival_time.tv_sec,
- req->rq_sent - req->rq_arrival_time.tv_sec,
- req->rq_sent - req->rq_deadline);
+ if (rc == 0) {
+ struct timespec64 arrival, sent, arrivaldiff;
+ char nidstr[LNET_NIDSTR_SIZE];
+
+ req = srhi->srhi_req;
+
+ libcfs_nid2str_r(req->rq_self, nidstr, sizeof(nidstr));
+ arrival.tv_sec = req->rq_arrival_time.tv_sec;
+ arrival.tv_nsec = req->rq_arrival_time.tv_nsec;
+ sent.tv_sec = req->rq_sent;
+ sent.tv_nsec = 0;
+ arrivaldiff = timespec64_sub(sent, arrival);
+
+ /* Print common req fields.
+ * CAVEAT EMPTOR: we're racing with the service handler
+ * here. The request could contain any old crap, so you
+ * must be just as careful as the service's request
+ * parser. Currently I only print stuff here I know is OK
+ * to look at coz it was set up in request_in_callback()!!!
+ */
+ seq_printf(s, "%lld:%s:%s:x%llu:%d:%s:%lld.%06lld:%lld.%06llds(%+lld.0s) ",
+ req->rq_history_seq, nidstr,
+ libcfs_id2str(req->rq_peer), req->rq_xid,
+ req->rq_reqlen, ptlrpc_rqphase2str(req),
+ (s64)req->rq_arrival_time.tv_sec,
+ (s64)(req->rq_arrival_time.tv_nsec / NSEC_PER_USEC),
+ (s64)arrivaldiff.tv_sec,
+ (s64)(arrivaldiff.tv_nsec / NSEC_PER_USEC),
+ (s64)(req->rq_sent - req->rq_deadline));
if (svc->srv_ops.so_req_printer == NULL)
seq_printf(s, "\n");
else
svc->srv_ops.so_req_printer(s, srhi->srhi_req);
- }
+ }
spin_unlock(&svcpt->scp_lock);
+ mutex_unlock(&svcpt->scp_mutex);
+
return rc;
}
static int
ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
{
- static struct seq_operations sops = {
- .start = ptlrpc_lprocfs_svc_req_history_start,
- .stop = ptlrpc_lprocfs_svc_req_history_stop,
- .next = ptlrpc_lprocfs_svc_req_history_next,
- .show = ptlrpc_lprocfs_svc_req_history_show,
- };
- struct proc_dir_entry *dp = PDE(inode);
- struct seq_file *seqf;
- int rc;
-
- LPROCFS_ENTRY_AND_CHECK(dp);
- rc = seq_open(file, &sops);
- if (rc) {
- LPROCFS_EXIT();
- return rc;
- }
+ static struct seq_operations sops = {
+ .start = ptlrpc_lprocfs_svc_req_history_start,
+ .stop = ptlrpc_lprocfs_svc_req_history_stop,
+ .next = ptlrpc_lprocfs_svc_req_history_next,
+ .show = ptlrpc_lprocfs_svc_req_history_show,
+ };
+ struct seq_file *seqf;
+ int rc;
+
+ rc = LPROCFS_ENTRY_CHECK(inode);
+ if (rc < 0)
+ return rc;
+
+ rc = seq_open(file, &sops);
+ if (rc)
+ return rc;
- seqf = file->private_data;
- seqf->private = dp->data;
- return 0;
+ seqf = file->private_data;
+ seqf->private = inode->i_private;
+ return 0;
}
/* See also lprocfs_rd_timeouts */
-static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ptlrpc_lprocfs_timeouts_seq_show(struct seq_file *m, void *n)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = m->private;
struct ptlrpc_service_part *svcpt;
- struct dhms ts;
- time_t worstt;
+ time64_t worstt;
unsigned int cur;
unsigned int worst;
- int nob = 0;
- int rc = 0;
int i;
- LASSERT(svc->srv_parts != NULL);
-
if (AT_OFF) {
- rc += snprintf(page + rc, count - rc,
- "adaptive timeouts off, using obd_timeout %u\n",
- obd_timeout);
- return rc;
+ seq_printf(m, "adaptive timeouts off, using obd_timeout %u\n",
+ obd_timeout);
+ return 0;
}
ptlrpc_service_for_each_part(svcpt, i, svc) {
cur = at_get(&svcpt->scp_at_estimate);
worst = svcpt->scp_at_estimate.at_worst_ever;
worstt = svcpt->scp_at_estimate.at_worst_time;
- s2dhms(&ts, cfs_time_current_sec() - worstt);
-
- nob = snprintf(page, count,
- "%10s : cur %3u worst %3u (at %ld, "
- DHMS_FMT" ago) ", "service",
- cur, worst, worstt, DHMS_VARS(&ts));
-
- nob = lprocfs_at_hist_helper(page, count, nob,
- &svcpt->scp_at_estimate);
- rc += nob;
- page += nob;
- count -= nob;
-
- /*
- * NB: for lustre proc read, the read count must be less
- * than PAGE_SIZE, please see details in lprocfs_fops_read.
- * It's unlikely that we exceed PAGE_SIZE at here because
- * it means the service has more than 50 partitions.
- */
- if (count <= 0) {
- CWARN("Can't fit AT information of %s in one page, "
- "please contact with developer to fix this.\n",
- svc->srv_name);
- break;
- }
+
+ seq_printf(m, "%10s : cur %3u worst %3u (at %lld, %llds ago) ",
+ "service", cur, worst, (s64)worstt,
+ (s64)(ktime_get_real_seconds() - worstt));
+
+ lprocfs_at_hist_helper(m, &svcpt->scp_at_estimate);
}
- return rc;
+ return 0;
}
-static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+LDEBUGFS_SEQ_FOPS_RO(ptlrpc_lprocfs_timeouts);
+
+static ssize_t high_priority_ratio_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- struct ptlrpc_service *svc = data;
- int rc = snprintf(page, count, "%d", svc->srv_hpreq_ratio);
- return rc;
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+
+ return sprintf(buf, "%d\n", svc->srv_hpreq_ratio);
}
-static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t high_priority_ratio_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
{
- struct ptlrpc_service *svc = data;
- int rc;
- int val;
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+ int rc;
+ unsigned long val;
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = kstrtoul(buffer, 10, &val);
if (rc < 0)
return rc;
- if (val < 0)
- return -ERANGE;
-
spin_lock(&svc->srv_lock);
svc->srv_hpreq_ratio = val;
spin_unlock(&svc->srv_lock);
return count;
}
+LUSTRE_RW_ATTR(high_priority_ratio);
+
+static struct attribute *ptlrpc_svc_attrs[] = {
+ &lustre_attr_threads_min.attr,
+ &lustre_attr_threads_started.attr,
+ &lustre_attr_threads_max.attr,
+ &lustre_attr_high_priority_ratio.attr,
+ NULL,
+};
-void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
- struct ptlrpc_service *svc)
+static void ptlrpc_sysfs_svc_release(struct kobject *kobj)
{
- struct lprocfs_vars lproc_vars[] = {
- {.name = "high_priority_ratio",
- .read_fptr = ptlrpc_lprocfs_rd_hp_ratio,
- .write_fptr = ptlrpc_lprocfs_wr_hp_ratio,
- .data = svc},
- {.name = "req_buffer_history_len",
- .read_fptr = ptlrpc_lprocfs_read_req_history_len,
- .data = svc},
- {.name = "req_buffer_history_max",
- .write_fptr = ptlrpc_lprocfs_write_req_history_max,
- .read_fptr = ptlrpc_lprocfs_read_req_history_max,
- .data = svc},
- {.name = "threads_min",
- .read_fptr = ptlrpc_lprocfs_rd_threads_min,
- .write_fptr = ptlrpc_lprocfs_wr_threads_min,
- .data = svc},
- {.name = "threads_max",
- .read_fptr = ptlrpc_lprocfs_rd_threads_max,
- .write_fptr = ptlrpc_lprocfs_wr_threads_max,
- .data = svc},
- {.name = "threads_started",
- .read_fptr = ptlrpc_lprocfs_rd_threads_started,
- .data = svc},
- {.name = "timeouts",
- .read_fptr = ptlrpc_lprocfs_rd_timeouts,
- .data = svc},
- {NULL}
+ struct ptlrpc_service *svc = container_of(kobj, struct ptlrpc_service,
+ srv_kobj);
+
+ complete(&svc->srv_kobj_unregister);
+}
+
+static struct kobj_type ptlrpc_svc_ktype = {
+ .default_attrs = ptlrpc_svc_attrs,
+ .sysfs_ops = &lustre_sysfs_ops,
+ .release = ptlrpc_sysfs_svc_release,
+};
+
+void ptlrpc_sysfs_unregister_service(struct ptlrpc_service *svc)
+{
+ /* Let's see if we had a chance at initialization first */
+ if (svc->srv_kobj.kset) {
+ kobject_put(&svc->srv_kobj);
+ wait_for_completion(&svc->srv_kobj_unregister);
+ }
+}
+
+int ptlrpc_sysfs_register_service(struct kset *parent,
+ struct ptlrpc_service *svc)
+{
+ svc->srv_kobj.kset = parent;
+ init_completion(&svc->srv_kobj_unregister);
+ return kobject_init_and_add(&svc->srv_kobj, &ptlrpc_svc_ktype,
+ &parent->kobj, "%s", svc->srv_name);
+}
+
+void ptlrpc_ldebugfs_register_service(struct dentry *entry,
+ struct ptlrpc_service *svc)
+{
+ struct lprocfs_vars lproc_vars[] = {
+ { .name = "req_buffer_history_len",
+ .fops = &ptlrpc_lprocfs_req_history_len_fops,
+ .data = svc },
+ { .name = "req_buffer_history_max",
+ .fops = &ptlrpc_lprocfs_req_history_max_fops,
+ .data = svc },
+ { .name = "timeouts",
+ .fops = &ptlrpc_lprocfs_timeouts_fops,
+ .data = svc },
+ { .name = "nrs_policies",
+ .fops = &ptlrpc_lprocfs_nrs_fops,
+ .data = svc },
+ { .name = "req_buffers_max",
+ .fops = &ptlrpc_lprocfs_req_buffers_max_fops,
+ .data = svc },
+ { NULL }
};
static struct file_operations req_history_fops = {
.owner = THIS_MODULE,
int rc;
- ptlrpc_lprocfs_register(entry, svc->srv_name,
- "stats", &svc->srv_procroot,
- &svc->srv_stats);
-
- if (svc->srv_procroot == NULL)
- return;
+ ptlrpc_ldebugfs_register(entry, svc->srv_name, "stats",
+ &svc->srv_debugfs_entry, &svc->srv_stats);
+ if (IS_ERR_OR_NULL(svc->srv_debugfs_entry))
+ return;
- lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
+ ldebugfs_add_vars(svc->srv_debugfs_entry, lproc_vars, NULL);
- rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
- 0400, &req_history_fops, svc);
- if (rc)
- CWARN("Error adding the req_history file\n");
+ rc = ldebugfs_seq_create(svc->srv_debugfs_entry, "req_history",
+ 0400, &req_history_fops, svc);
+ if (rc)
+ CWARN("Error adding the req_history file\n");
}
void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
{
- ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
- &obddev->obd_svc_procroot,
- &obddev->obd_svc_stats);
+ ptlrpc_ldebugfs_register(obddev->obd_debugfs_entry, NULL, "stats",
+ &obddev->obd_svc_debugfs_entry,
+ &obddev->obd_svc_stats);
}
EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
{
- if (svc->srv_procroot != NULL)
- lprocfs_remove(&svc->srv_procroot);
+ if (!IS_ERR_OR_NULL(svc->srv_debugfs_entry))
+ ldebugfs_remove(&svc->srv_debugfs_entry);
if (svc->srv_stats)
lprocfs_free_stats(&svc->srv_stats);
void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
{
- if (obd->obd_svc_procroot)
- lprocfs_remove(&obd->obd_svc_procroot);
+ /* cleanup first to allow concurrent access to device's
+ * stats via debugfs to complete safely
+ */
+ lprocfs_obd_cleanup(obd);
+
+ if (!IS_ERR_OR_NULL(obd->obd_svc_debugfs_entry))
+ ldebugfs_remove(&obd->obd_svc_debugfs_entry);
if (obd->obd_svc_stats)
lprocfs_free_stats(&obd->obd_svc_stats);
}
EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
+ssize_t ping_show(struct kobject *kobj, struct attribute *attr,
+ char *buffer)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct ptlrpc_request *req;
+ int rc;
+
+ ENTRY;
+ LPROCFS_CLIMP_CHECK(obd);
+ req = ptlrpc_prep_ping(obd->u.cli.cl_import);
+ LPROCFS_CLIMP_EXIT(obd);
+ if (!req)
+ RETURN(-ENOMEM);
-#define BUFLEN (UUID_MAX + 5)
+ req->rq_send_state = LUSTRE_IMP_FULL;
-int lprocfs_wr_evict_client(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = data;
- char *kbuf;
- char *tmpbuf;
-
- 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 (cfs_copy_from_user(kbuf, buffer,
- min_t(unsigned long, BUFLEN - 1, count))) {
- count = -EFAULT;
- goto out;
- }
- tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
- /* Kludge code(deadlock situation): the lprocfs lock has been held
- * since the client is evicted by writting client's
- * uuid/nid to procfs "evict_client" entry. However,
- * obd_export_evict_by_uuid() will call lprocfs_remove() to destroy
- * the proc entries under the being destroyed export{}, so I have
- * to drop the lock at first here.
- * - jay, jxiong@clusterfs.com */
- LPROCFS_EXIT();
- class_incref(obd, __FUNCTION__, cfs_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, __FUNCTION__, cfs_current());
- LPROCFS_ENTRY();
+ rc = ptlrpc_queue_wait(req);
+ ptlrpc_req_finished(req);
-out:
- OBD_FREE(kbuf, BUFLEN);
- return count;
+ RETURN(rc);
}
-EXPORT_SYMBOL(lprocfs_wr_evict_client);
+EXPORT_SYMBOL(ping_show);
-#undef BUFLEN
-
-int lprocfs_wr_ping(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/* kept for older verison of tools. */
+ssize_t ping_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- struct obd_device *obd = data;
- struct ptlrpc_request *req;
- int rc;
- ENTRY;
-
- LPROCFS_CLIMP_CHECK(obd);
- req = ptlrpc_prep_ping(obd->u.cli.cl_import);
- LPROCFS_CLIMP_EXIT(obd);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- req->rq_send_state = LUSTRE_IMP_FULL;
-
- rc = ptlrpc_queue_wait(req);
-
- ptlrpc_req_finished(req);
- if (rc >= 0)
- RETURN(count);
- RETURN(rc);
+ return ping_show(kobj, attr, (char *)buffer);
}
-EXPORT_SYMBOL(lprocfs_wr_ping);
+EXPORT_SYMBOL(ping_store);
/* Write the connection UUID to this file to attempt to connect to that node.
* The connection UUID is a node's primary NID. For example,
* "echo connection=192.168.0.1@tcp0::instance > .../import".
*/
-int lprocfs_wr_import(struct file *file, const char *buffer,
- unsigned long count, void *data)
+ssize_t
+lprocfs_import_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- struct obd_import *imp = obd->u.cli.cl_import;
- char *kbuf = NULL;
- char *uuid;
- char *ptr;
- int do_reconn = 1;
- const char prefix[] = "connection=";
- const int prefix_len = sizeof(prefix) - 1;
-
- if (count > CFS_PAGE_SIZE - 1 || count <= prefix_len)
- return -EINVAL;
-
- OBD_ALLOC(kbuf, count + 1);
- if (kbuf == NULL)
- return -ENOMEM;
-
- if (cfs_copy_from_user(kbuf, buffer, count))
- GOTO(out, count = -EFAULT);
-
- kbuf[count] = 0;
-
- /* only support connection=uuid::instance now */
- if (strncmp(prefix, kbuf, prefix_len) != 0)
- GOTO(out, count = -EINVAL);
-
- uuid = kbuf + prefix_len;
- ptr = strstr(uuid, "::");
- if (ptr) {
- __u32 inst;
- char *endptr;
-
- *ptr = 0;
- do_reconn = 0;
- ptr += strlen("::");
- inst = simple_strtol(ptr, &endptr, 10);
- if (*endptr) {
- CERROR("config: wrong instance # %s\n", ptr);
- } else if (inst != imp->imp_connect_data.ocd_instance) {
- CDEBUG(D_INFO, "IR: %s is connecting to an obsoleted "
- "target(%u/%u), reconnecting...\n",
- imp->imp_obd->obd_name,
- imp->imp_connect_data.ocd_instance, inst);
- do_reconn = 1;
- } else {
- CDEBUG(D_INFO, "IR: %s has already been connecting to "
- "new target(%u)\n",
- imp->imp_obd->obd_name, inst);
- }
- }
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct obd_import *imp = obd->u.cli.cl_import;
+ char *kbuf = NULL;
+ char *uuid;
+ char *ptr;
+ int do_reconn = 1;
+ const char prefix[] = "connection=";
+ const int prefix_len = sizeof(prefix) - 1;
+
+ if (count > PAGE_SIZE - 1 || count <= prefix_len)
+ return -EINVAL;
+
+ OBD_ALLOC(kbuf, count + 1);
+ if (kbuf == NULL)
+ return -ENOMEM;
+
+ if (copy_from_user(kbuf, buffer, count))
+ GOTO(out, count = -EFAULT);
+
+ kbuf[count] = 0;
+
+ /* only support connection=uuid::instance now */
+ if (strncmp(prefix, kbuf, prefix_len) != 0)
+ GOTO(out, count = -EINVAL);
+
+ uuid = kbuf + prefix_len;
+ ptr = strstr(uuid, "::");
+ if (ptr) {
+ u32 inst;
+ int rc;
+
+ *ptr = 0;
+ do_reconn = 0;
+ ptr += 2; /* Skip :: */
+ rc = kstrtouint(ptr, 10, &inst);
+ if (rc) {
+ CERROR("config: wrong instance # %s\n", ptr);
+ } else if (inst != imp->imp_connect_data.ocd_instance) {
+ CDEBUG(D_INFO, "IR: %s is connecting to an obsoleted "
+ "target(%u/%u), reconnecting...\n",
+ imp->imp_obd->obd_name,
+ imp->imp_connect_data.ocd_instance, inst);
+ do_reconn = 1;
+ } else {
+ CDEBUG(D_INFO, "IR: %s has already been connecting to "
+ "new target(%u)\n",
+ imp->imp_obd->obd_name, inst);
+ }
+ }
- if (do_reconn)
- ptlrpc_recover_import(imp, uuid, 1);
+ if (do_reconn)
+ ptlrpc_recover_import(imp, uuid, 1);
out:
- OBD_FREE(kbuf, count + 1);
- return count;
+ OBD_FREE(kbuf, count + 1);
+ return count;
}
-EXPORT_SYMBOL(lprocfs_wr_import);
+EXPORT_SYMBOL(lprocfs_import_seq_write);
-int lprocfs_rd_pinger_recov(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *n)
{
- struct obd_device *obd = data;
- struct obd_import *imp = obd->u.cli.cl_import;
- int rc;
-
- LPROCFS_CLIMP_CHECK(obd);
- rc = snprintf(page, count, "%d\n", !imp->imp_no_pinger_recover);
- LPROCFS_CLIMP_EXIT(obd);
+ struct obd_device *obd = m->private;
+ struct obd_import *imp = obd->u.cli.cl_import;
- return rc;
+ LPROCFS_CLIMP_CHECK(obd);
+ seq_printf(m, "%d\n", !imp->imp_no_pinger_recover);
+ LPROCFS_CLIMP_EXIT(obd);
+ return 0;
}
-EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
+EXPORT_SYMBOL(lprocfs_pinger_recov_seq_show);
-int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
- unsigned long count, void *data)
+ssize_t
+lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- struct client_obd *cli = &obd->u.cli;
- struct obd_import *imp = cli->cl_import;
- int rc, val;
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc < 0)
- return rc;
-
- if (val != 0 && val != 1)
- return -ERANGE;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct client_obd *cli = &obd->u.cli;
+ struct obd_import *imp = cli->cl_import;
+ bool val;
+ int rc;
+
+ rc = kstrtobool_from_user(buffer, count, &val);
+ if (rc < 0)
+ return rc;
- LPROCFS_CLIMP_CHECK(obd);
+ LPROCFS_CLIMP_CHECK(obd);
spin_lock(&imp->imp_lock);
imp->imp_no_pinger_recover = !val;
spin_unlock(&imp->imp_lock);
LPROCFS_CLIMP_EXIT(obd);
-
return count;
-
}
-EXPORT_SYMBOL(lprocfs_wr_pinger_recov);
-
-#endif /* LPROCFS */
+EXPORT_SYMBOL(lprocfs_pinger_recov_seq_write);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff