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LU-10467 lustre: convert most users of LWI_TIMEOUT_INTERVAL()
[fs/lustre-release.git] / lustre / ptlrpc / niobuf.c
index 29d10e3..c19fecd 100644 (file)
@@ -37,6 +37,7 @@
 #include <obd.h>
 #include <obd_class.h>
 #include "ptlrpc_internal.h"
+#include <lnet/lib-lnet.h> /* for CFS_FAIL_PTLRPC_OST_BULK_CB2 */
 
 /**
  * Helper function. Sends \a len bytes from \a base at offset \a offset
@@ -216,13 +217,10 @@ int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc)
                        break;
                }
 
-               /* LU-6441: last md is not sent and desc->bd_md_count == 1 */
-               if (OBD_FAIL_CHECK_ORSET(OBD_FAIL_PTLRPC_CLIENT_BULK_CB3,
-                                        CFS_FAIL_ONCE) &&
-                   total_md > 1 && posted_md == total_md - 1) {
-                       posted_md++;
-                       continue;
-               }
+               /* sanity.sh 224c: lets skip last md */
+               if (posted_md == desc->bd_md_max_brw - 1)
+                       OBD_FAIL_CHECK_RESET(OBD_FAIL_PTLRPC_CLIENT_BULK_CB3,
+                                            CFS_FAIL_PTLRPC_OST_BULK_CB2);
 
                /* Network is about to get at the memory */
                if (ptlrpc_is_bulk_put_source(desc->bd_type))
@@ -231,7 +229,7 @@ int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc)
                                     desc->bd_portal, mbits, 0, 0);
                else
                        rc = LNetGet(self_nid, desc->bd_mds[posted_md],
-                                    peer_id, desc->bd_portal, mbits, 0);
+                                    peer_id, desc->bd_portal, mbits, 0, false);
 
                posted_md++;
                if (rc != 0) {
@@ -270,9 +268,6 @@ int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc)
  */
 void ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc)
 {
-       struct l_wait_info       lwi;
-       int                      rc;
-
        LASSERT(!in_interrupt());           /* might sleep */
 
        if (!ptlrpc_server_bulk_active(desc))   /* completed or */
@@ -292,14 +287,16 @@ void ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc)
        for (;;) {
                /* 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(desc->bd_waitq,
-                                 !ptlrpc_server_bulk_active(desc), &lwi);
-               if (rc == 0)
+               int seconds = LONG_UNLINK;
+
+               while (seconds > 0 &&
+                      wait_event_idle_timeout(desc->bd_waitq,
+                                              !ptlrpc_server_bulk_active(desc),
+                                              cfs_time_seconds(1)) == 0)
+                       seconds -= 1;
+               if (seconds > 0)
                        return;
 
-               LASSERT(rc == -ETIMEDOUT);
                CWARN("Unexpectedly long timeout: desc %p\n", desc);
        }
 }
@@ -314,11 +311,10 @@ int ptlrpc_register_bulk(struct ptlrpc_request *req)
        struct ptlrpc_bulk_desc *desc = req->rq_bulk;
        struct lnet_process_id peer;
        int rc = 0;
-       int rc2;
        int posted_md;
        int total_md;
        __u64 mbits;
-       struct lnet_handle_me me_h;
+       struct lnet_me *me;
        struct lnet_md md;
        ENTRY;
 
@@ -379,8 +375,9 @@ int ptlrpc_register_bulk(struct ptlrpc_request *req)
                    OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_BULK_ATTACH)) {
                        rc = -ENOMEM;
                } else {
-                       rc = LNetMEAttach(desc->bd_portal, peer, mbits, 0,
-                                 LNET_UNLINK, LNET_INS_AFTER, &me_h);
+                       me = LNetMEAttach(desc->bd_portal, peer, mbits, 0,
+                                 LNET_UNLINK, LNET_INS_AFTER);
+                       rc = PTR_ERR_OR_ZERO(me);
                }
                if (rc != 0) {
                        CERROR("%s: LNetMEAttach failed x%llu/%d: rc = %d\n",
@@ -390,14 +387,13 @@ int ptlrpc_register_bulk(struct ptlrpc_request *req)
                }
 
                /* About to let the network at it... */
-               rc = LNetMDAttach(me_h, md, LNET_UNLINK,
+               rc = LNetMDAttach(me, md, LNET_UNLINK,
                                  &desc->bd_mds[posted_md]);
                if (rc != 0) {
                        CERROR("%s: LNetMDAttach failed x%llu/%d: rc = %d\n",
                               desc->bd_import->imp_obd->obd_name, mbits,
                               posted_md, rc);
-                       rc2 = LNetMEUnlink(me_h);
-                       LASSERT(rc2 == 0);
+                       LNetMEUnlink(me);
                        break;
                }
        }
@@ -440,8 +436,6 @@ int ptlrpc_register_bulk(struct ptlrpc_request *req)
 int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async)
 {
        struct ptlrpc_bulk_desc *desc = req->rq_bulk;
-       struct l_wait_info       lwi;
-       int                      rc;
        ENTRY;
 
        LASSERT(!in_interrupt());     /* might sleep */
@@ -477,21 +471,26 @@ int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async)
                wait_queue_head_t *wq = (req->rq_set != NULL) ?
                                        &req->rq_set->set_waitq :
                                        &req->rq_reply_waitq;
-                /* 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_bulk_active(req), &lwi);
-                if (rc == 0) {
-                        ptlrpc_rqphase_move(req, req->rq_next_phase);
-                        RETURN(1);
-                }
+               /*
+                * Network access will complete in finite time but the HUGE
+                * timeout lets us CWARN for visibility of sluggish NALs.
+                */
+               int seconds = LONG_UNLINK;
+
+               while (seconds > 0 &&
+                      wait_event_idle_timeout(*wq,
+                                              !ptlrpc_client_bulk_active(req),
+                                              cfs_time_seconds(1)) == 0)
+                       seconds -= 1;
+               if (seconds > 0) {
+                       ptlrpc_rqphase_move(req, req->rq_next_phase);
+                       RETURN(1);
+               }
 
-                LASSERT(rc == -ETIMEDOUT);
-                DEBUG_REQ(D_WARNING, req, "Unexpectedly long timeout: desc %p",
-                          desc);
-        }
-        RETURN(0);
+               DEBUG_REQ(D_WARNING, req, "Unexpectedly long timeout: desc %p",
+                         desc);
+       }
+       RETURN(0);
 }
 
 static void ptlrpc_at_set_reply(struct ptlrpc_request *req, int flags)
@@ -595,16 +594,6 @@ int ptlrpc_send_reply(struct ptlrpc_request *req, int flags)
                        req->rq_export->exp_obd->obd_minor);
         }
 
-       /* In order to keep interoprability with the client (< 2.3) which
-        * doesn't have pb_jobid in ptlrpc_body, We have to shrink the
-        * ptlrpc_body in reply buffer to ptlrpc_body_v2, otherwise, the
-        * reply buffer on client will be overflow.
-        *
-        * XXX Remove this whenver we drop the interoprability with such client.
-        */
-       req->rq_replen = lustre_shrink_msg(req->rq_repmsg, 0,
-                                          sizeof(struct ptlrpc_body_v2), 1);
-
         if (req->rq_type != PTL_RPC_MSG_ERR)
                 req->rq_type = PTL_RPC_MSG_REPLY;
 
@@ -697,11 +686,10 @@ int ptlrpc_error(struct ptlrpc_request *req)
 int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 {
        int rc;
-       int rc2;
        int mpflag = 0;
        struct lnet_handle_md bulk_cookie;
        struct ptlrpc_connection *connection;
-       struct lnet_handle_me reply_me_h;
+       struct lnet_me *reply_me = NULL;
        struct lnet_md reply_md;
        struct obd_import *imp = request->rq_import;
        struct obd_device *obd = imp->imp_obd;
@@ -756,8 +744,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
                spin_unlock(&imp->imp_lock);
 
                lustre_msg_set_last_xid(request->rq_reqmsg, min_xid);
-               DEBUG_REQ(D_RPCTRACE, request, "Allocating new xid for "
-                         "resend on EINPROGRESS");
+               DEBUG_REQ(D_RPCTRACE, request,
+                         "Allocating new XID for resend on EINPROGRESS");
        }
 
        if (request->rq_bulk != NULL) {
@@ -767,9 +755,9 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
        if (list_empty(&request->rq_unreplied_list) ||
            request->rq_xid <= imp->imp_known_replied_xid) {
-               DEBUG_REQ(D_ERROR, request, "xid: %llu, replied: %llu, "
-                         "list_empty:%d\n", request->rq_xid,
-                         imp->imp_known_replied_xid,
+               DEBUG_REQ(D_ERROR, request,
+                         "xid=%llu, replied=%llu, list_empty=%d",
+                         request->rq_xid, imp->imp_known_replied_xid,
                          list_empty(&request->rq_unreplied_list));
                LBUG();
        }
@@ -786,8 +774,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
                if (request->rq_resend_cb != NULL)
                        request->rq_resend_cb(request, &request->rq_async_args);
        }
-        if (request->rq_memalloc)
-                mpflag = cfs_memory_pressure_get_and_set();
+       if (request->rq_memalloc)
+               mpflag = cfs_memory_pressure_get_and_set();
 
        rc = sptlrpc_cli_wrap_request(request);
        if (rc)
@@ -822,25 +810,21 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
                                request->rq_status = rc;
                                GOTO(cleanup_bulk, rc);
                        }
-                       /* Use real allocated value in lm_repsize,
-                        * so the server may use whole reply buffer
-                        * without resends where it is needed.
-                        */
-                       request->rq_reqmsg->lm_repsize = request->rq_repbuf_len;
-                } else {
-                        request->rq_repdata = NULL;
-                        request->rq_repmsg = NULL;
-                }
+               } else {
+                       request->rq_repdata = NULL;
+                       request->rq_repmsg = NULL;
+               }
 
-                rc = LNetMEAttach(request->rq_reply_portal,/*XXX FIXME bug 249*/
-                                  connection->c_peer, request->rq_xid, 0,
-                                  LNET_UNLINK, LNET_INS_AFTER, &reply_me_h);
-                if (rc != 0) {
-                        CERROR("LNetMEAttach failed: %d\n", rc);
-                        LASSERT (rc == -ENOMEM);
-                        GOTO(cleanup_bulk, rc = -ENOMEM);
-                }
-        }
+               reply_me = LNetMEAttach(request->rq_reply_portal,
+                                       connection->c_peer, request->rq_xid, 0,
+                                       LNET_UNLINK, LNET_INS_AFTER);
+               if (IS_ERR(reply_me)) {
+                       rc = PTR_ERR(reply_me);
+                       CERROR("LNetMEAttach failed: %d\n", rc);
+                       LASSERT(rc == -ENOMEM);
+                       GOTO(cleanup_bulk, rc = -ENOMEM);
+               }
+       }
 
        spin_lock(&request->rq_lock);
        /* We are responsible for unlinking the reply buffer */
@@ -871,11 +855,11 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
                /* We must see the unlink callback to set rq_reply_unlinked,
                 * so we can't auto-unlink */
-                rc = LNetMDAttach(reply_me_h, reply_md, LNET_RETAIN,
-                                  &request->rq_reply_md_h);
-                if (rc != 0) {
-                        CERROR("LNetMDAttach failed: %d\n", rc);
-                        LASSERT (rc == -ENOMEM);
+               rc = LNetMDAttach(reply_me, reply_md, LNET_RETAIN,
+                                 &request->rq_reply_md_h);
+               if (rc != 0) {
+                       CERROR("LNetMDAttach failed: %d\n", rc);
+                       LASSERT(rc == -ENOMEM);
                        spin_lock(&request->rq_lock);
                        /* ...but the MD attach didn't succeed... */
                        request->rq_receiving_reply = 0;
@@ -906,7 +890,7 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
        ptlrpc_pinger_sending_on_import(imp);
 
-       DEBUG_REQ(D_INFO, request, "send flg=%x",
+       DEBUG_REQ(D_INFO, request, "send flags=%x",
                  lustre_msg_get_flags(request->rq_reqmsg));
        rc = ptl_send_buf(&request->rq_req_md_h,
                          request->rq_reqbuf, request->rq_reqdata_len,
@@ -923,18 +907,20 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
                 GOTO(out, rc);
 
  cleanup_me:
-        /* MEUnlink is safe; the PUT didn't even get off the ground, and
-         * nobody apart from the PUT's target has the right nid+XID to
-         * access the reply buffer. */
-        rc2 = LNetMEUnlink(reply_me_h);
-        LASSERT (rc2 == 0);
-        /* UNLINKED callback called synchronously */
-        LASSERT(!request->rq_receiving_reply);
+       /* MEUnlink is safe; the PUT didn't even get off the ground, and
+        * nobody apart from the PUT's target has the right nid+XID to
+        * access the reply buffer.
+        */
+       LNetMEUnlink(reply_me);
+       /* UNLINKED callback called synchronously */
+       LASSERT(!request->rq_receiving_reply);
 
  cleanup_bulk:
-        /* We do sync unlink here as there was no real transfer here so
-         * the chance to have long unlink to sluggish net is smaller here. */
+       /* We do sync unlink here as there was no real transfer here so
+        * the chance to have long unlink to sluggish net is smaller here. */
         ptlrpc_unregister_bulk(request, 0);
+       if (request->rq_bulk != NULL)
+               request->rq_bulk->bd_registered = 0;
  out:
        if (rc == -ENOMEM) {
                /* set rq_sent so that this request is treated
@@ -961,7 +947,7 @@ int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd)
        };
        int rc;
        struct lnet_md md;
-       struct lnet_handle_me me_h;
+       struct lnet_me *me;
 
         CDEBUG(D_NET, "LNetMEAttach: portal %d\n",
                service->srv_req_portal);
@@ -972,14 +958,14 @@ int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd)
        /* NB: CPT affinity service should use new LNet flag LNET_INS_LOCAL,
         * which means buffer can only be attached on local CPT, and LND
         * threads can find it by grabbing a local lock */
-       rc = LNetMEAttach(service->srv_req_portal,
+       me = LNetMEAttach(service->srv_req_portal,
                          match_id, 0, ~0, LNET_UNLINK,
                          rqbd->rqbd_svcpt->scp_cpt >= 0 ?
-                         LNET_INS_LOCAL : LNET_INS_AFTER, &me_h);
-        if (rc != 0) {
-                CERROR("LNetMEAttach failed: %d\n", rc);
-                return (-ENOMEM);
-        }
+                         LNET_INS_LOCAL : LNET_INS_AFTER);
+       if (IS_ERR(me)) {
+               CERROR("LNetMEAttach failed: %ld\n", PTR_ERR(me));
+               return -ENOMEM;
+       }
 
         LASSERT(rqbd->rqbd_refcount == 0);
         rqbd->rqbd_refcount = 1;
@@ -992,15 +978,15 @@ int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd)
         md.user_ptr  = &rqbd->rqbd_cbid;
         md.eq_handle = ptlrpc_eq_h;
 
-        rc = LNetMDAttach(me_h, md, LNET_UNLINK, &rqbd->rqbd_md_h);
-        if (rc == 0)
-                return (0);
+       rc = LNetMDAttach(me, md, LNET_UNLINK, &rqbd->rqbd_md_h);
+       if (rc == 0)
+               return 0;
 
-        CERROR("LNetMDAttach failed: %d; \n", rc);
-        LASSERT (rc == -ENOMEM);
-        rc = LNetMEUnlink (me_h);
-        LASSERT (rc == 0);
-        rqbd->rqbd_refcount = 0;
+       CERROR("LNetMDAttach failed: %d;\n", rc);
+       LASSERT(rc == -ENOMEM);
+       LNetMEUnlink(me);
+       LASSERT(rc == 0);
+       rqbd->rqbd_refcount = 0;
 
-        return (-ENOMEM);
+       return -ENOMEM;
 }