-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
{ LDLM_BL_CALLBACK, "ldlm_bl_callback" },
{ LDLM_CP_CALLBACK, "ldlm_cp_callback" },
{ LDLM_GL_CALLBACK, "ldlm_gl_callback" },
+ { LDLM_SET_INFO, "ldlm_set_info" },
{ MGS_CONNECT, "mgs_connect" },
{ MGS_DISCONNECT, "mgs_disconnect" },
{ MGS_EXCEPTION, "mgs_exception" },
{ MGS_TARGET_REG, "mgs_target_reg" },
{ 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" },
{ LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
{ LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
static int
ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = data;
+ 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;
- *eof = 1;
- return snprintf(page, count, "%d\n", svc->srv_n_history_rqbds);
+ return snprintf(page, count, "%d\n", total);
}
static int
ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = data;
+ 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;
- *eof = 1;
- return snprintf(page, count, "%d\n", svc->srv_max_history_rqbds);
+ return snprintf(page, count, "%d\n", total);
}
static int
ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
unsigned long count, void *data)
{
- struct ptlrpc_service *svc = data;
- int bufpages;
- int val;
- int rc = lprocfs_write_helper(buffer, count, &val);
+ struct ptlrpc_service *svc = data;
+ int bufpages;
+ int val;
+ int rc;
+ rc = lprocfs_write_helper(buffer, count, &val);
if (rc < 0)
return rc;
* 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 > num_physpages/(2 * bufpages))
+ if (val > cfs_num_physpages/(2 * bufpages))
return -ERANGE;
- spin_lock(&svc->srv_lock);
- svc->srv_max_history_rqbds = val;
- spin_unlock(&svc->srv_lock);
+ spin_lock(&svc->srv_lock);
- return count;
+ if (val == 0)
+ svc->srv_hist_nrqbds_cpt_max = 0;
+ else
+ svc->srv_hist_nrqbds_cpt_max = max(1, (val / svc->srv_ncpts));
+
+ spin_unlock(&svc->srv_lock);
+
+ return count;
}
static int
ptlrpc_lprocfs_rd_threads_min(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = data;
- return snprintf(page, count, "%d\n", svc->srv_threads_min);
+ return snprintf(page, count, "%d\n",
+ svc->srv_nthrs_cpt_init * svc->srv_ncpts);
}
static int
ptlrpc_lprocfs_wr_threads_min(struct file *file, const char *buffer,
unsigned long count, void *data)
{
- struct ptlrpc_service *svc = data;
- int val;
- int rc = lprocfs_write_helper(buffer, count, &val);
+ struct ptlrpc_service *svc = data;
+ int val;
+ int rc = lprocfs_write_helper(buffer, count, &val);
- if (rc < 0)
- return rc;
+ if (rc < 0)
+ return rc;
- if (val < 2)
- return -ERANGE;
+ if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
+ return -ERANGE;
- if (val > svc->srv_threads_max)
- return -ERANGE;
+ spin_lock(&svc->srv_lock);
+ if (val > svc->srv_nthrs_cpt_limit * svc->srv_ncpts) {
+ spin_unlock(&svc->srv_lock);
+ return -ERANGE;
+ }
- spin_lock(&svc->srv_lock);
- svc->srv_threads_min = val;
- spin_unlock(&svc->srv_lock);
+ svc->srv_nthrs_cpt_init = val / svc->srv_ncpts;
- return count;
+ spin_unlock(&svc->srv_lock);
+
+ return count;
}
static int
ptlrpc_lprocfs_rd_threads_started(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = data;
+ struct ptlrpc_service_part *svcpt;
+ 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", svc->srv_threads_started);
+ return snprintf(page, count, "%d\n", total);
}
static int
ptlrpc_lprocfs_rd_threads_max(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
+ struct ptlrpc_service *svc = data;
- return snprintf(page, count, "%d\n", svc->srv_threads_max);
+ return snprintf(page, count, "%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)
+ unsigned long count, void *data)
{
- struct ptlrpc_service *svc = data;
- int val;
- int rc = lprocfs_write_helper(buffer, count, &val);
+ struct ptlrpc_service *svc = data;
+ int val;
+ int rc = lprocfs_write_helper(buffer, count, &val);
- if (rc < 0)
- return rc;
+ if (rc < 0)
+ return rc;
- if (val < 2)
- return -ERANGE;
+ if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
+ return -ERANGE;
- if (val < svc->srv_threads_min)
- return -ERANGE;
+ spin_lock(&svc->srv_lock);
+ if (val < svc->srv_nthrs_cpt_init * svc->srv_ncpts) {
+ spin_unlock(&svc->srv_lock);
+ return -ERANGE;
+ }
- spin_lock(&svc->srv_lock);
- svc->srv_threads_max = val;
- spin_unlock(&svc->srv_lock);
+ svc->srv_nthrs_cpt_limit = val / svc->srv_ncpts;
- return count;
+ spin_unlock(&svc->srv_lock);
+
+ return count;
}
struct ptlrpc_srh_iterator {
- __u64 srhi_seq;
- struct ptlrpc_request *srhi_req;
+ int srhi_idx;
+ __u64 srhi_seq;
+ struct ptlrpc_request *srhi_req;
};
int
-ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service *svc,
- struct ptlrpc_srh_iterator *srhi,
- __u64 seq)
+ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service_part *svcpt,
+ struct ptlrpc_srh_iterator *srhi,
+ __u64 seq)
{
- struct list_head *e;
- struct ptlrpc_request *req;
+ cfs_list_t *e;
+ struct ptlrpc_request *req;
- if (srhi->srhi_req != NULL &&
- srhi->srhi_seq > svc->srv_request_max_cull_seq &&
+ if (srhi->srhi_req != NULL &&
+ srhi->srhi_seq > svcpt->scp_hist_seq_culled &&
srhi->srhi_seq <= seq) {
/* If srhi_req was set previously, hasn't been culled and
* we're searching for a seq on or after it (i.e. more
* Since the service history is LRU (i.e. culled reqs will
* be near the head), we shouldn't have to do long
* re-scans */
- LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
- LASSERT (!list_empty(&svc->srv_request_history));
- e = &srhi->srhi_req->rq_history_list;
- } else {
- /* search from start */
- e = svc->srv_request_history.next;
- }
-
- while (e != &svc->srv_request_history) {
- req = list_entry(e, struct ptlrpc_request, rq_history_list);
+ LASSERTF(srhi->srhi_seq == srhi->srhi_req->rq_history_seq,
+ "%s:%d: seek seq "LPU64", request seq "LPU64"\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",
+ svcpt->scp_service->srv_name, svcpt->scp_cpt,
+ seq, srhi->srhi_seq, svcpt->scp_hist_seq_culled);
+ e = &srhi->srhi_req->rq_history_list;
+ } else {
+ /* search from start */
+ e = svcpt->scp_hist_reqs.next;
+ }
+
+ while (e != &svcpt->scp_hist_reqs) {
+ req = cfs_list_entry(e, struct ptlrpc_request, rq_history_list);
if (req->rq_history_seq >= seq) {
srhi->srhi_seq = req->rq_history_seq;
return -ENOENT;
}
-static void *
-ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
-{
- struct ptlrpc_service *svc = s->private;
- struct ptlrpc_srh_iterator *srhi;
- int rc;
+/*
+ * ptlrpc history sequence is used as "position" of seq_file, in some case,
+ * seq_read() will increase "position" to indicate reading the next
+ * element, however, low bits of history sequence are reserved for CPT id
+ * (check the details from comments before ptlrpc_req_add_history), which
+ * means seq_read() might change CPT id of history sequence and never
+ * finish reading of requests on a CPT. To make it work, we have to shift
+ * CPT id to high bits and timestamp to low bits, so seq_read() will only
+ * increase timestamp which can correctly indicate the next position.
+ */
- OBD_ALLOC(srhi, sizeof(*srhi));
- if (srhi == NULL)
- return NULL;
+/* convert seq_file pos to cpt */
+#define PTLRPC_REQ_POS2CPT(svc, pos) \
+ ((svc)->srv_cpt_bits == 0 ? 0 : \
+ (__u64)(pos) >> (64 - (svc)->srv_cpt_bits))
- srhi->srhi_seq = 0;
- srhi->srhi_req = NULL;
+/* make up seq_file pos from cpt */
+#define PTLRPC_REQ_CPT2POS(svc, cpt) \
+ ((svc)->srv_cpt_bits == 0 ? 0 : \
+ (cpt) << (64 - (svc)->srv_cpt_bits))
- spin_lock(&svc->srv_lock);
- rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos);
- spin_unlock(&svc->srv_lock);
+/* convert sequence to position */
+#define PTLRPC_REQ_SEQ2POS(svc, seq) \
+ ((svc)->srv_cpt_bits == 0 ? (seq) : \
+ ((seq) >> (svc)->srv_cpt_bits) | \
+ ((seq) << (64 - (svc)->srv_cpt_bits)))
- if (rc == 0) {
- *pos = srhi->srhi_seq;
- return srhi;
- }
+/* convert position to sequence */
+#define PTLRPC_REQ_POS2SEQ(svc, pos) \
+ ((svc)->srv_cpt_bits == 0 ? (pos) : \
+ ((__u64)(pos) << (svc)->srv_cpt_bits) | \
+ ((__u64)(pos) >> (64 - (svc)->srv_cpt_bits)))
- OBD_FREE(srhi, sizeof(*srhi));
- return NULL;
+static void *
+ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
+{
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_service_part *svcpt;
+ struct ptlrpc_srh_iterator *srhi;
+ unsigned int cpt;
+ int rc;
+ int i;
+
+ if (sizeof(loff_t) != sizeof(__u64)) { /* can't support */
+ CWARN("Failed to read request history because size of loff_t "
+ "%d can't match size of u64\n", (int)sizeof(loff_t));
+ return NULL;
+ }
+
+ OBD_ALLOC(srhi, sizeof(*srhi));
+ if (srhi == NULL)
+ return NULL;
+
+ srhi->srhi_seq = 0;
+ srhi->srhi_req = NULL;
+
+ cpt = PTLRPC_REQ_POS2CPT(svc, *pos);
+
+ ptlrpc_service_for_each_part(svcpt, i, svc) {
+ if (i < cpt) /* skip */
+ continue;
+ if (i > cpt) /* make up the lowest position for this CPT */
+ *pos = PTLRPC_REQ_CPT2POS(svc, i);
+
+ spin_lock(&svcpt->scp_lock);
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi,
+ PTLRPC_REQ_POS2SEQ(svc, *pos));
+ spin_unlock(&svcpt->scp_lock);
+ if (rc == 0) {
+ *pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
+ srhi->srhi_idx = i;
+ return srhi;
+ }
+ }
+
+ OBD_FREE(srhi, sizeof(*srhi));
+ return NULL;
}
static void
static void *
ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
- void *iter, loff_t *pos)
+ void *iter, loff_t *pos)
{
- struct ptlrpc_service *svc = s->private;
- struct ptlrpc_srh_iterator *srhi = iter;
- int rc;
-
- spin_lock(&svc->srv_lock);
- rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos + 1);
- spin_unlock(&svc->srv_lock);
-
- if (rc != 0) {
- OBD_FREE(srhi, sizeof(*srhi));
- return NULL;
- }
-
- *pos = srhi->srhi_seq;
- return srhi;
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_srh_iterator *srhi = iter;
+ struct ptlrpc_service_part *svcpt;
+ __u64 seq;
+ int rc;
+ int i;
+
+ for (i = srhi->srhi_idx; i < svc->srv_ncpts; i++) {
+ svcpt = svc->srv_parts[i];
+
+ if (i > srhi->srhi_idx) { /* reset iterator for a new CPT */
+ srhi->srhi_req = NULL;
+ seq = srhi->srhi_seq = 0;
+ } else { /* the next sequence */
+ seq = srhi->srhi_seq + (1 << svc->srv_cpt_bits);
+ }
+
+ spin_lock(&svcpt->scp_lock);
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, seq);
+ spin_unlock(&svcpt->scp_lock);
+ if (rc == 0) {
+ *pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
+ srhi->srhi_idx = i;
+ return srhi;
+ }
+ }
+
+ OBD_FREE(srhi, sizeof(*srhi));
+ return NULL;
}
-/* common ost/mdt srv_request_history_print_fn */
+/* common ost/mdt so_req_printer */
void target_print_req(void *seq_file, struct ptlrpc_request *req)
{
/* Called holding srv_lock with irqs disabled.
static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
{
- struct ptlrpc_service *svc = s->private;
- struct ptlrpc_srh_iterator *srhi = iter;
- struct ptlrpc_request *req;
- int rc;
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_srh_iterator *srhi = iter;
+ struct ptlrpc_service_part *svcpt;
+ struct ptlrpc_request *req;
+ int rc;
- spin_lock(&svc->srv_lock);
+ LASSERT(srhi->srhi_idx < svc->srv_ncpts);
- rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, srhi->srhi_seq);
+ svcpt = svc->srv_parts[srhi->srhi_idx];
+
+ spin_lock(&svcpt->scp_lock);
+
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, srhi->srhi_seq);
if (rc == 0) {
req = srhi->srhi_req;
req->rq_arrival_time.tv_sec,
req->rq_sent - req->rq_arrival_time.tv_sec,
req->rq_sent - req->rq_deadline);
- if (svc->srv_request_history_print_fn == NULL)
- seq_printf(s, "\n");
- else
- svc->srv_request_history_print_fn(s, srhi->srhi_req);
+ 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(&svc->srv_lock);
-
- return rc;
+ spin_unlock(&svcpt->scp_lock);
+ return rc;
}
static int
/* See also lprocfs_rd_timeouts */
static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ int count, int *eof, void *data)
{
- struct ptlrpc_service *svc = data;
- unsigned int cur, worst;
- time_t worstt;
- struct dhms ts;
- int rc = 0;
-
- *eof = 1;
- cur = at_get(&svc->srv_at_estimate);
- worst = svc->srv_at_estimate.at_worst_ever;
- worstt = svc->srv_at_estimate.at_worst_time;
- s2dhms(&ts, cfs_time_current_sec() - worstt);
- if (AT_OFF)
- rc += snprintf(page + rc, count - rc,
- "adaptive timeouts off, using obd_timeout %u\n",
- obd_timeout);
- rc += snprintf(page + rc, count - rc,
- "%10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
- "service", cur, worst, worstt,
- DHMS_VARS(&ts));
- rc = lprocfs_at_hist_helper(page, count, rc,
- &svc->srv_at_estimate);
- return rc;
+ struct ptlrpc_service *svc = data;
+ struct ptlrpc_service_part *svcpt;
+ struct dhms ts;
+ time_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;
+ }
+
+ 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;
+ }
+ }
+
+ return rc;
}
static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
}
static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
- unsigned long count, void *data)
+ unsigned long count, void *data)
{
- struct ptlrpc_service *svc = data;
- int rc, val;
+ struct ptlrpc_service *svc = data;
+ int rc;
+ int val;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc < 0)
- return rc;
- if (val < 0)
- return -ERANGE;
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc < 0)
+ return rc;
- spin_lock(&svc->srv_lock);
- svc->srv_hpreq_ratio = val;
- spin_unlock(&svc->srv_lock);
- return count;
+ if (val < 0)
+ return -ERANGE;
+
+ spin_lock(&svc->srv_lock);
+ svc->srv_hpreq_ratio = val;
+ spin_unlock(&svc->srv_lock);
+
+ return count;
}
void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
+#define BUFLEN (UUID_MAX + 5)
+
int lprocfs_wr_evict_client(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = data;
- char tmpbuf[sizeof(struct obd_uuid)];
+ 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,
* the proc entries under the being destroyed export{}, so I have
* to drop the lock at first here.
* - jay, jxiong@clusterfs.com */
- class_incref(obd, __FUNCTION__, cfs_current());
LPROCFS_EXIT();
+ class_incref(obd, __FUNCTION__, cfs_current());
- sscanf(buffer, "%40s", tmpbuf);
if (strncmp(tmpbuf, "nid:", 4) == 0)
obd_export_evict_by_nid(obd, tmpbuf + 4);
else if (strncmp(tmpbuf, "uuid:", 5) == 0)
else
obd_export_evict_by_uuid(obd, tmpbuf);
+ class_decref(obd, __FUNCTION__, cfs_current());
LPROCFS_ENTRY();
- class_decref(obd, __FUNCTION__, cfs_current());
+out:
+ OBD_FREE(kbuf, BUFLEN);
return count;
}
EXPORT_SYMBOL(lprocfs_wr_evict_client);
+#undef BUFLEN
+
int lprocfs_wr_ping(struct file *file, const char *buffer,
unsigned long count, void *data)
{
}
EXPORT_SYMBOL(lprocfs_wr_ping);
+/* 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)
+{
+ 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);
+ }
+ }
+
+ if (do_reconn)
+ ptlrpc_recover_import(imp, uuid, 1);
+
+out:
+ OBD_FREE(kbuf, count + 1);
+ return count;
+}
+EXPORT_SYMBOL(lprocfs_wr_import);
+
+int lprocfs_rd_pinger_recov(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ 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);
+
+ return rc;
+}
+EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
+
+int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ 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;
+
+ 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 */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff