+
+static int target_bulk_timeout(void *data)
+{
+ ENTRY;
+ /* We don't fail the connection here, because having the export
+ * killed makes the (vital) call to commitrw very sad.
+ */
+ RETURN(1);
+}
+
+static inline char *bulk2type(struct ptlrpc_bulk_desc *desc)
+{
+ return desc->bd_type == BULK_GET_SINK ? "GET" : "PUT";
+}
+
+int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc,
+ struct l_wait_info *lwi)
+{
+ struct ptlrpc_request *req = desc->bd_req;
+ int rc = 0;
+ ENTRY;
+
+ /* Check if there is eviction in progress, and if so, wait for
+ * it to finish */
+ if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
+ *lwi = LWI_INTR(NULL, NULL);
+ rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
+ !cfs_atomic_read(&exp->exp_obd->
+ obd_evict_inprogress),
+ lwi);
+ }
+
+ /* Check if client was evicted or tried to reconnect already */
+ if (exp->exp_failed || exp->exp_abort_active_req) {
+ rc = -ENOTCONN;
+ } else {
+ if (desc->bd_type == BULK_PUT_SINK)
+ rc = sptlrpc_svc_wrap_bulk(req, desc);
+ if (rc == 0)
+ rc = ptlrpc_start_bulk_transfer(desc);
+ }
+
+ if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE)) {
+ ptlrpc_abort_bulk(desc);
+ } else if (rc == 0) {
+ time_t start = cfs_time_current_sec();
+ do {
+ long timeoutl = req->rq_deadline - cfs_time_current_sec();
+ cfs_duration_t timeout = timeoutl <= 0 ?
+ CFS_TICK : cfs_time_seconds(timeoutl);
+ *lwi = LWI_TIMEOUT_INTERVAL(timeout,
+ cfs_time_seconds(1),
+ target_bulk_timeout,
+ desc);
+ rc = l_wait_event(desc->bd_waitq,
+ !ptlrpc_server_bulk_active(desc) ||
+ exp->exp_failed ||
+ exp->exp_abort_active_req,
+ lwi);
+ LASSERT(rc == 0 || rc == -ETIMEDOUT);
+ /* Wait again if we changed deadline */
+ } while ((rc == -ETIMEDOUT) &&
+ (req->rq_deadline > cfs_time_current_sec()));
+
+ if (rc == -ETIMEDOUT) {
+ DEBUG_REQ(D_ERROR, req,
+ "timeout on bulk %s after %ld%+lds",
+ bulk2type(desc),
+ req->rq_deadline - start,
+ cfs_time_current_sec() -
+ req->rq_deadline);
+ ptlrpc_abort_bulk(desc);
+ } else if (exp->exp_failed) {
+ DEBUG_REQ(D_ERROR, req, "Eviction on bulk %s",
+ bulk2type(desc));
+ rc = -ENOTCONN;
+ ptlrpc_abort_bulk(desc);
+ } else if (exp->exp_abort_active_req) {
+ DEBUG_REQ(D_ERROR, req, "Reconnect on bulk %s",
+ bulk2type(desc));
+ /* we don't reply anyway */
+ rc = -ETIMEDOUT;
+ ptlrpc_abort_bulk(desc);
+ } else if (!desc->bd_success ||
+ desc->bd_nob_transferred != desc->bd_nob) {
+ DEBUG_REQ(D_ERROR, req, "%s bulk %s %d(%d)",
+ desc->bd_success ?
+ "truncated" : "network error on",
+ bulk2type(desc),
+ desc->bd_nob_transferred,
+ desc->bd_nob);
+ /* XXX should this be a different errno? */
+ rc = -ETIMEDOUT;
+ } else if (desc->bd_type == BULK_GET_SINK) {
+ rc = sptlrpc_svc_unwrap_bulk(req, desc);
+ }
+ } else {
+ DEBUG_REQ(D_ERROR, req, "bulk %s failed: rc %d",
+ bulk2type(desc), rc);
+ }
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(target_bulk_io);
git://git.whamcloud.com / fs / lustre-release.git / commitdiff