lnet_process_id_t peer;
int err;
- /* ptlrpc_uuid_to_peer() initializes its 2nd parameter
- * before accessing its values. */
- /* coverity[uninit_use_in_call] */
+ /*
+ * ptlrpc_uuid_to_peer() initializes its 2nd parameter
+ * before accessing its values.
+ * coverity[uninit_use_in_call]
+ */
err = ptlrpc_uuid_to_peer(uuid, &peer, &self);
if (err != 0) {
CNETERR("cannot find peer %s!\n", uuid->uuid);
desc->bd_md_count = 0;
LASSERT(max_brw > 0);
desc->bd_md_max_brw = min(max_brw, PTLRPC_BULK_OPS_COUNT);
- /* PTLRPC_BULK_OPS_COUNT is the compile-time transfer limit for this
- * node. Negotiated ocd_brw_size will always be <= this number. */
+ /*
+ * PTLRPC_BULK_OPS_COUNT is the compile-time transfer limit for this
+ * node. Negotiated ocd_brw_size will always be <= this number.
+ */
for (i = 0; i < PTLRPC_BULK_OPS_COUNT; i++)
LNetInvalidateHandle(&desc->bd_mds[i]);
LASSERT(req->rq_import);
if (AT_OFF) {
- /* non-AT settings */
- /**
+ /*
+ * non-AT settings
+ *
* \a imp_server_timeout means this is reverse import and
* we send (currently only) ASTs to the client and cannot afford
* to wait too long for the reply, otherwise the other client
serv_est = at_get(&at->iat_service_estimate[idx]);
req->rq_timeout = at_est2timeout(serv_est);
}
- /* We could get even fancier here, using history to predict increased
- loading... */
+ /*
+ * We could get even fancier here, using history to predict increased
+ * loading...
+ */
- /* Let the server know what this RPC timeout is by putting it in the
- reqmsg*/
+ /*
+ * Let the server know what this RPC timeout is by putting it in the
+ * reqmsg
+ */
lustre_msg_set_timeout(req->rq_reqmsg, req->rq_timeout);
}
EXPORT_SYMBOL(ptlrpc_at_set_req_timeout);
at = &req->rq_import->imp_at;
idx = import_at_get_index(req->rq_import, req->rq_request_portal);
- /* max service estimates are tracked on the server side,
- so just keep minimal history here */
+ /*
+ * max service estimates are tracked on the server side,
+ * so just keep minimal history here
+ */
oldse = at_measured(&at->iat_service_estimate[idx], serv_est);
if (oldse != 0)
CDEBUG(D_ADAPTTO, "The RPC service estimate for %s ptl %d has changed from %d to %d\n",
LASSERT(req->rq_import);
if (service_time > now - req->rq_sent + 3) {
- /* bz16408, however, this can also happen if early reply
+ /*
+ * bz16408, however, this can also happen if early reply
* is lost and client RPC is expired and resent, early reply
* or reply of original RPC can still be fit in reply buffer
* of resent RPC, now client is measuring time from the
spin_lock(&req->rq_lock);
olddl = req->rq_deadline;
- /* server assumes it now has rq_timeout from when it sent the
- * early reply, so client should give it at least that long. */
+ /*
+ * server assumes it now has rq_timeout from when it sent the
+ * early reply, so client should give it at least that long.
+ */
req->rq_deadline = ktime_get_real_seconds() + req->rq_timeout +
ptlrpc_at_get_net_latency(req);
if (!pool)
return NULL;
- /* Request next power of two for the allocation, because internally
- kernel would do exactly this */
+ /*
+ * Request next power of two for the allocation, because internally
+ * kernel would do exactly this
+ */
spin_lock_init(&pool->prp_lock);
INIT_LIST_HEAD(&pool->prp_req_list);
spin_lock(&pool->prp_lock);
- /* See if we have anything in a pool, and bail out if nothing,
+ /*
+ * See if we have anything in a pool, and bail out if nothing,
* in writeout path, where this matters, this is safe to do, because
* nothing is lost in this case, and when some in-flight requests
- * complete, this code will be called again. */
+ * complete, this code will be called again.
+ */
if (unlikely(list_empty(&pool->prp_req_list))) {
spin_unlock(&pool->prp_lock);
return NULL;
if (rc)
return rc;
- /* For some old 1.8 clients (< 1.8.7), they will LASSERT the size of
+ /*
+ * For some old 1.8 clients (< 1.8.7), they will LASSERT the size of
* ptlrpc_body sent from server equal to local ptlrpc_body size, so we
* have to send old ptlrpc_body to keep interoperability with these
* clients.
lustre_msg_set_jobid(req->rq_reqmsg, NULL);
if (set->set_producer != NULL)
- /* If the request set has a producer callback, the RPC must be
- * sent straight away */
+ /*
+ * If the request set has a producer callback, the RPC must be
+ * sent straight away
+ */
ptlrpc_send_new_req(req);
}
EXPORT_SYMBOL(ptlrpc_set_add_req);
LASSERT(test_bit(LIOD_STOP, &pc->pc_flags) == 0);
spin_lock(&set->set_new_req_lock);
- /*
- * The set takes over the caller's request reference.
- */
+ /* The set takes over the caller's request reference. */
req->rq_set = set;
req->rq_queued_time = cfs_time_current();
list_add_tail(&req->rq_set_chain, &set->set_new_requests);
if (count == 1) {
wake_up(&set->set_waitq);
- /* XXX: It maybe unnecessary to wakeup all the partners. But to
+ /*
+ * XXX: It maybe unnecessary to wakeup all the partners. But to
* guarantee the async RPC can be processed ASAP, we have
- * no other better choice. It maybe fixed in future. */
+ * no other better choice. It maybe fixed in future.
+ */
for (i = 0; i < pc->pc_npartners; i++)
wake_up(&pc->pc_partners[i]->pc_set->set_waitq);
}
LASSERT(req->rq_reqmsg != NULL);
opc = lustre_msg_get_opc(req->rq_reqmsg);
- /* Suppress particular reconnect errors which are to be expected. No
- * errors are suppressed for the initial connection on an import */
+ /*
+ * Suppress particular reconnect errors which are to be expected. No
+ * errors are suppressed for the initial connection on an import
+ */
if ((lustre_handle_is_used(&req->rq_import->imp_remote_handle)) &&
(opc == OST_CONNECT || opc == MDS_CONNECT || opc == MGS_CONNECT)) {
}
sptlrpc_cli_free_repbuf(req);
- /* Pass the required reply buffer size (include
- * space for early reply).
- * NB: no need to roundup because alloc_repbuf
- * will roundup it */
+ /*
+ * Pass the required reply buffer size (include space for early
+ * reply). NB: no need to round up because alloc_repbuf will
+ * round it up
+ */
req->rq_replen = req->rq_nob_received;
req->rq_nob_received = 0;
spin_lock(&req->rq_lock);
return rc;
}
- /*
- * Security layer unwrap might ask resend this request.
- */
+ /* Security layer unwrap might ask resend this request. */
if (req->rq_resend)
return 0;
/* allocate new xid to avoid reply reconstruction */
if (!req->rq_bulk) {
- /* new xid is already allocated for bulk in
- * ptlrpc_check_set() */
+ /* new xid is already allocated for bulk in ptlrpc_check_set() */
req->rq_xid = ptlrpc_next_xid();
DEBUG_REQ(D_RPCTRACE, req, "Allocating new xid for resend on EINPROGRESS");
}
/* Readjust the timeout for current conditions */
ptlrpc_at_set_req_timeout(req);
- /* delay resend to give a chance to the server to get ready.
+ /*
+ * delay resend to give a chance to the server to get ready.
* The delay is increased by 1s on every resend and is capped to
* the current request timeout (i.e. obd_timeout if AT is off,
- * or AT service time x 125% + 5s, see at_est2timeout) */
+ * or AT service time x 125% + 5s, see at_est2timeout)
+ */
if (req->rq_nr_resend > req->rq_timeout)
req->rq_sent = now + req->rq_timeout;
else
ldlm_cli_update_pool(req);
}
- /*
- * Store transno in reqmsg for replay.
- */
+ /* Store transno in reqmsg for replay. */
if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)) {
req->rq_transno = lustre_msg_get_transno(req->rq_repmsg);
lustre_msg_set_transno(req->rq_reqmsg, req->rq_transno);
(req->rq_transno >
lustre_msg_get_last_committed(req->rq_repmsg) ||
req->rq_replay)) {
- /** version recovery */
+ /* version recovery */
ptlrpc_save_versions(req);
ptlrpc_retain_replayable_request(req, imp);
} else if (req->rq_commit_cb != NULL &&
list_empty(&req->rq_replay_list)) {
- /* NB: don't call rq_commit_cb if it's already on
+ /*
+ * NB: don't call rq_commit_cb if it's already on
* rq_replay_list, ptlrpc_free_committed() will call
- * it later, see LU-3618 for details */
+ * it later, see LU-3618 for details
+ */
spin_unlock(&imp->imp_lock);
req->rq_commit_cb(req);
spin_lock(&imp->imp_lock);
}
- /*
- * Replay-enabled imports return commit-status information.
- */
+ /* Replay-enabled imports return commit-status information. */
if (lustre_msg_get_last_committed(req->rq_repmsg)) {
imp->imp_peer_committed_transno =
lustre_msg_get_last_committed(req->rq_repmsg);
remaining = atomic_read(&set->set_remaining);
- /* populate the ->set_requests list with requests until we
- * reach the maximum number of RPCs in flight for this set */
+ /*
+ * populate the ->set_requests list with requests until we
+ * reach the maximum number of RPCs in flight for this set
+ */
while (atomic_read(&set->set_remaining) < set->set_max_inflight) {
rc = set->set_producer(set, set->set_producer_arg);
if (rc == -ENOENT) {
int unregistered = 0;
int rc = 0;
- /* This schedule point is mainly for the ptlrpcd caller of this
+ /*
+ * This schedule point is mainly for the ptlrpcd caller of this
* function. Most ptlrpc sets are not long-lived and unbounded
* in length, but at the least the set used by the ptlrpcd is.
* Since the processing time is unbounded, we need to insert an
OBD_FAIL_ONCE);
}
- /*
- * Move to next phase if reply was successfully
+ /* Move to next phase if reply was successfully
* unlinked.
*/
ptlrpc_rqphase_move(req, req->rq_next_phase);
if (req->rq_phase == RQ_PHASE_INTERPRET)
goto interpret;
- /*
- * Note that this also will start async reply unlink.
- */
+ /* Note that this also will start async reply unlink. */
if (req->rq_net_err && !req->rq_timedout) {
ptlrpc_expire_one_request(req, 1);
- /*
- * Check if we still need to wait for unlink.
- */
+ /* Check if we still need to wait for unlink. */
if (ptlrpc_client_recv_or_unlink(req) ||
ptlrpc_client_bulk_active(req))
continue;
goto interpret;
}
- /* ptlrpc_set_wait->l_wait_event sets lwi_allow_intr
+ /*
+ * ptlrpc_set_wait->l_wait_event sets lwi_allow_intr
* so it sets rq_intr regardless of individual rpc
* timeouts. The synchronous IO waiting path sets
* rq_intr irrespective of whether ptlrpcd
spin_lock(&imp->imp_lock);
if (ptlrpc_import_delay_req(imp, req,
&status)) {
- /* put on delay list - only if we wait
- * recovery finished - before send */
+ /*
+ * put on delay list - only if we wait
+ * recovery finished - before send
+ */
list_del_init(&req->rq_list);
list_add_tail(&req->rq_list,
&imp->
spin_unlock(&req->rq_lock);
if (req->rq_timedout || req->rq_resend) {
- /* This is re-sending anyways,
- * let's mark req as resend. */
+ /* This is re-sending anyway, let's mark req as resend. */
spin_lock(&req->rq_lock);
req->rq_resend = 1;
spin_unlock(&req->rq_lock);
spin_unlock(&req->rq_lock);
- /* unlink from net because we are going to
- * swab in-place of reply buffer */
+ /*
+ * unlink from net because we are going to
+ * swab in-place of reply buffer
+ */
unregistered = ptlrpc_unregister_reply(req, 1);
if (!unregistered)
continue;
if (req->rq_resend)
continue;
- /* If there is no bulk associated with this request,
+ /*
+ * If there is no bulk associated with this request,
* then we're done and should let the interpreter
* process the reply. Similarly if the RPC returned
* an error, and therefore the bulk will never arrive.
continue;
if (req->rq_bulk->bd_failure) {
- /* The RPC reply arrived OK, but the bulk screwed
+ /*
+ * The RPC reply arrived OK, but the bulk screwed
* up! Dead weird since the server told us the RPC
* was good after getting the REPLY for her GET or
- * the ACK for her PUT. */
+ * the ACK for her PUT.
+ */
DEBUG_REQ(D_ERROR, req, "bulk transfer failed");
req->rq_status = -EIO;
}
interpret:
LASSERT(req->rq_phase == RQ_PHASE_INTERPRET);
- /* This moves to "unregistering" phase we need to wait for
- * reply unlink. */
+ /*
+ * This moves to "unregistering" phase we need to wait for
+ * reply unlink.
+ */
if (!unregistered && !ptlrpc_unregister_reply(req, 1)) {
/* start async bulk unlink too */
ptlrpc_unregister_bulk(req, 1);
if (!ptlrpc_unregister_bulk(req, 1))
continue;
- /* When calling interpret receiving already should be
- * finished. */
+ /* When calling interpret receive should already be finished. */
LASSERT(!req->rq_receiving_reply);
ptlrpc_req_interpret(env, req, req->rq_status);
lustre_msg_get_opc(req->rq_reqmsg));
spin_lock(&imp->imp_lock);
- /* Request already may be not on sending or delaying list. This
+ /*
+ * Request already may be not on sending or delaying list. This
* may happen in the case of marking it erroneous for the case
* ptlrpc_import_delay_req(req, status) find it impossible to
- * allow sending this rpc and returns *status != 0. */
+ * allow sending this rpc and returns *status != 0.
+ */
if (!list_empty(&req->rq_list)) {
list_del_init(&req->rq_list);
atomic_dec(&imp->imp_inflight);
if (ptlrpc_set_producer(set) > 0)
force_timer_recalc = 1;
- /* free the request that has just been completed
- * in order not to pollute set->set_requests */
+ /*
+ * free the request that has just been completed
+ * in order not to pollute set->set_requests
+ */
list_del_init(&req->rq_set_chain);
spin_lock(&req->rq_lock);
req->rq_set = NULL;
}
}
- /* move completed request at the head of list so it's easier for
- * caller to find them */
+ /*
+ * move completed request at the head of list so it's easier for
+ * caller to find them
+ */
list_splice(&comp_reqs, &set->set_requests);
/* If we hit an error, we want to recover promptly. */
if (imp->imp_dlm_fake)
return 1;
- /* If this request is for recovery or other primordial tasks,
- * then error it out here. */
+ /*
+ * If this request is for recovery or other primordial tasks,
+ * then error it out here.
+ */
if (req->rq_ctx_init || req->rq_ctx_fini ||
req->rq_send_state != LUSTRE_IMP_FULL ||
imp->imp_obd->obd_no_recov) {
return 1;
}
- /* if a request can't be resent we can't wait for an answer after
- the timeout */
+ /*
+ * if a request can't be resent we can't wait for an answer after
+ * the timeout
+ */
if (ptlrpc_no_resend(req)) {
DEBUG_REQ(D_RPCTRACE, req, "TIMEOUT-NORESEND:");
rc = 1;
LASSERT(set != NULL);
- /*
- * A timeout expired. See which reqs it applies to...
- */
+ /* A timeout expired. See which reqs it applies to... */
list_for_each(tmp, &set->set_requests) {
struct ptlrpc_request *req =
list_entry(tmp, struct ptlrpc_request,
req->rq_deadline > now) /* not expired */
continue;
- /* Deal with this guy. Do it asynchronously to not block
- * ptlrpcd thread. */
+ /*
+ * Deal with this guy. Do it asynchronously to not block
+ * ptlrpcd thread.
+ */
ptlrpc_expire_one_request(req, 1);
}
list_for_each(tmp, &set->set_requests) {
req = list_entry(tmp, struct ptlrpc_request, rq_set_chain);
- /*
- * Request in-flight?
- */
+ /* Request in-flight? */
if (!(((req->rq_phase == RQ_PHASE_RPC) && !req->rq_waiting) ||
(req->rq_phase == RQ_PHASE_BULK) ||
(req->rq_phase == RQ_PHASE_NEW)))
continue;
- /*
- * Already timed out.
- */
+ /* Already timed out. */
if (req->rq_timedout)
continue;
- /*
- * Waiting for ctx.
- */
+ /* Waiting for ctx. */
if (req->rq_wait_ctx)
continue;
do {
timeout = ptlrpc_set_next_timeout(set);
- /* wait until all complete, interrupted, or an in-flight
- * req times out */
+ /*
+ * wait until all complete, interrupted, or an in-flight
+ * req times out
+ */
CDEBUG(D_RPCTRACE, "set %p going to sleep for %d seconds\n",
set, timeout);
rc = l_wait_event(set->set_waitq, ptlrpc_check_set(NULL, set), &lwi);
- /* LU-769 - if we ignored the signal because it was already
+ /*
+ * LU-769 - if we ignored the signal because it was already
* pending when we started, we need to handle it now or we risk
- * it being ignored forever */
+ * it being ignored forever
+ */
if (rc == -ETIMEDOUT && !lwi.lwi_allow_intr &&
cfs_signal_pending()) {
sigset_t blocked_sigs =
cfs_block_sigsinv(LUSTRE_FATAL_SIGS);
- /* In fact we only interrupt for the "fatal" signals
+ /*
+ * In fact we only interrupt for the "fatal" signals
* like SIGINT or SIGKILL. We still ignore less
* important signals since ptlrpc set is not easily
- * reentrant from userspace again */
+ * reentrant from userspace again
+ */
if (cfs_signal_pending())
ptlrpc_interrupted_set(set);
cfs_restore_sigs(blocked_sigs);
LASSERT(rc == 0 || rc == -EINTR || rc == -ETIMEDOUT);
- /* -EINTR => all requests have been flagged rq_intr so next
+ /*
+ * -EINTR => all requests have been flagged rq_intr so next
* check completes.
* -ETIMEDOUT => someone timed out. When all reqs have
* timed out, signals are enabled allowing completion with
* EINTR.
* I don't really care if we go once more round the loop in
- * the error cases -eeb. */
+ * the error cases -eeb.
+ */
if (rc == 0 && atomic_read(&set->set_remaining) == 0) {
list_for_each(tmp, &set->set_requests) {
req = list_entry(tmp, struct ptlrpc_request,
req_capsule_fini(&request->rq_pill);
- /* We must take it off the imp_replay_list first. Otherwise, we'll set
- * request->rq_reqmsg to NULL while osc_close is dereferencing it. */
+ /*
+ * We must take it off the imp_replay_list first. Otherwise, we'll set
+ * request->rq_reqmsg to NULL while osc_close is dereferencing it.
+ */
if (request->rq_import != NULL) {
if (!locked)
spin_lock(&request->rq_import->imp_lock);
wait_queue_head_t *wq;
struct l_wait_info lwi;
- /*
- * Might sleep.
- */
+ /* Might sleep. */
LASSERT(!in_interrupt());
- /*
- * Let's setup deadline for reply unlink.
- */
+ /* Let's setup deadline for reply unlink. */
if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
async && request->rq_reply_deadline == 0)
request->rq_reply_deadline = ktime_get_real_seconds()+LONG_UNLINK;
- /*
- * Nothing left to do.
- */
+ /* Nothing left to do. */
if (!ptlrpc_client_recv_or_unlink(request))
return 1;
LNetMDUnlink(request->rq_reply_md_h);
- /*
- * Let's check it once again.
- */
+ /* Let's check it once again. */
if (!ptlrpc_client_recv_or_unlink(request))
return 1;
- /*
- * Move to "Unregistering" phase as reply was not unlinked yet.
- */
+ /* Move to "Unregistering" phase as reply was not unlinked yet. */
ptlrpc_rqphase_move(request, RQ_PHASE_UNREGISTERING);
- /*
- * Do not wait for unlink to finish.
- */
+ /* Do not wait for unlink to finish. */
if (async)
return 0;
wq = &request->rq_reply_waitq;
for (;;) {
- /* Network access will complete in finite time but the HUGE
- * timeout lets us CWARN for visibility of sluggish NALs */
+ /*
+ * Network access will complete in finite time but the HUGE
+ * timeout lets us CWARN for visibility of sluggish NALs
+ */
lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(LONG_UNLINK),
cfs_time_seconds(1), NULL, NULL);
rc = l_wait_event(*wq, !ptlrpc_client_recv_or_unlink(request),
DEBUG_REQ(D_HA, req, "going to resend");
spin_lock(&req->rq_lock);
- /* Request got reply but linked to the import list still.
- Let ptlrpc_check_set() to process it. */
+ /*
+ * Request got reply but linked to the import list still.
+ * Let ptlrpc_check_set() to process it.
+ */
if (ptlrpc_client_replied(req)) {
spin_unlock(&req->rq_lock);
DEBUG_REQ(D_HA, req, "it has reply, so skip it");
LBUG();
}
- /* clear this for new requests that were resent as well
- as resent replayed requests. */
+ /*
+ * clear this for new requests that were resent as well
+ * as resent replayed requests.
+ */
lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
/* don't re-add requests that have been replayed */
list_entry(tmp, struct ptlrpc_request,
rq_replay_list);
- /* We may have duplicate transnos if we create and then
+ /*
+ * We may have duplicate transnos if we create and then
* open a file, or for closes retained if to match creating
* opens, so use req->rq_xid as a secondary key.
* (See bugs 684, 685, and 428.)
/* Readjust the timeout for current conditions */
ptlrpc_at_set_req_timeout(req);
- /* Tell server the net_latency, so the server can calculate how long
- * it should wait for next replay */
+ /*
+ * Tell server the net_latency, so the server can calculate how long
+ * it should wait for next replay
+ */
lustre_msg_set_service_time(req->rq_reqmsg,
ptlrpc_at_get_net_latency(req));
DEBUG_REQ(D_HA, req, "REPLAY");
{
struct list_head *tmp, *n;
- /* Make sure that no new requests get processed for this import.
+ /*
+ * Make sure that no new requests get processed for this import.
* ptlrpc_{queue,set}_wait must (and does) hold imp_lock while testing
* this flag and then putting requests on sending_list or delayed_list.
*/
spin_lock(&imp->imp_lock);
- /* XXX locking? Maybe we should remove each request with the list
+ /*
+ * XXX locking? Maybe we should remove each request with the list
* locked? Also, how do we know if the requests on the list are
* being freed at this time?
*/
spin_unlock(&req->rq_lock);
}
- /* Last chance to free reqs left on the replay list, but we
- * will still leak reqs that haven't committed. */
+ /*
+ * Last chance to free reqs left on the replay list, but we
+ * will still leak reqs that haven't committed.
+ */
if (imp->imp_replayable)
ptlrpc_free_committed(imp);
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