lib/jsonrpc: Add a new API to send response for writing bool result.

There are many duplicated codes about sending response for writing bool result.
That we need a function to do this.
Then we can reduce many codes.

Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: Ic439111b1e9ca1013f8c657ab925f0c27a7be699
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5033
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

CHANGELOG.md

@@ -8,6 +8,11 @@ The SPDK nvmf target now supports async event notification for discovery log cha
 This allows the initiator to create persistent connection to discovery controller and
 be notified of any discovery log changes.
 
+### json
+
+A new API `spdk_jsonrpc_send_bool_response` was added to allow sending response for
+writing json bool results into one function.
+
 ## v20.10:
 
 ### accel

include/spdk/jsonrpc.h

@@ -198,6 +198,14 @@ struct spdk_json_write_ctx *spdk_jsonrpc_begin_result(struct spdk_jsonrpc_reques
  */
 void spdk_jsonrpc_end_result(struct spdk_jsonrpc_request *request, struct spdk_json_write_ctx *w);
 
+/**
+ * Complete a JSON-RPC response and write bool result.
+ *
+ * \param request Request to complete the response for.
+ * \param value Write bool result value.
+ */
+void spdk_jsonrpc_send_bool_response(struct spdk_jsonrpc_request *request, bool value);
+
 /**
  * Send an error response to a JSON-RPC request.
  *

lib/bdev/bdev_rpc.c

@@ -59,7 +59,6 @@ rpc_bdev_set_options(struct spdk_jsonrpc_request *request, const struct spdk_jso
 {
 	struct spdk_rpc_set_bdev_opts rpc_opts;
 	struct spdk_bdev_opts bdev_opts;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	rpc_opts.bdev_io_pool_size = UINT32_MAX;
@@ -93,9 +92,7 @@ rpc_bdev_set_options(struct spdk_jsonrpc_request *request, const struct spdk_jso
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("bdev_set_options", rpc_bdev_set_options, SPDK_RPC_STARTUP)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_set_options, set_bdev_options)
@@ -119,7 +116,6 @@ rpc_bdev_examine_bdev(struct spdk_jsonrpc_request *request,
 		      const struct spdk_json_val *params)
 {
 	struct rpc_bdev_examine req = {NULL};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_examine_bdev_decoders,
@@ -136,9 +132,8 @@ rpc_bdev_examine_bdev(struct spdk_jsonrpc_request *request,
 		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
 		goto cleanup;
 	}
-	w = spdk_jsonrpc_begin_result(request);
+
-	spdk_json_write_bool(w, true);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_examine(&req);
@@ -489,7 +484,6 @@ rpc_bdev_set_qd_sampling_period(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_bdev_set_qd_sampling_period req = {0};
 	struct spdk_bdev *bdev;
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_bdev_set_qd_sampling_period_decoders,
 				    SPDK_COUNTOF(rpc_bdev_set_qd_sampling_period_decoders),
@@ -507,11 +501,8 @@ rpc_bdev_set_qd_sampling_period(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
 	spdk_bdev_set_qd_sampling_period(bdev, req.period);
-
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_set_qd_sampling_period(&req);
@@ -561,7 +552,6 @@ static void
 rpc_bdev_set_qos_limit_complete(void *cb_arg, int status)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	if (status != 0) {
 		spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
@@ -570,9 +560,7 @@ rpc_bdev_set_qos_limit_complete(void *cb_arg, int status)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -641,10 +629,8 @@ static void
 bdev_histogram_status_cb(void *cb_arg, int status)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, status == 0);
+	spdk_jsonrpc_send_bool_response(request, status == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

lib/event/app.c

@@ -866,7 +866,6 @@ static void
 rpc_framework_start_init_cpl(int rc, void *arg1)
 {
 	struct spdk_jsonrpc_request *request = arg1;
-	struct spdk_json_write_ctx *w;
 
 	assert(spdk_get_thread() == g_app_thread);
 
@@ -879,9 +878,7 @@ rpc_framework_start_init_cpl(int rc, void *arg1)
 	spdk_rpc_set_state(SPDK_RPC_RUNTIME);
 	app_start_application();
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -907,13 +904,10 @@ struct subsystem_init_poller_ctx {
 static int
 rpc_subsystem_init_poller_ctx(void *ctx)
 {
-	struct spdk_json_write_ctx *w;
 	struct subsystem_init_poller_ctx *poller_ctx = ctx;
 
 	if (spdk_rpc_get_state() == SPDK_RPC_RUNTIME) {
-		w = spdk_jsonrpc_begin_result(poller_ctx->request);
+		spdk_jsonrpc_send_bool_response(poller_ctx->request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(poller_ctx->request, w);
 		spdk_poller_unregister(&poller_ctx->init_poller);
 		free(poller_ctx);
 	}
@@ -925,13 +919,10 @@ static void
 rpc_framework_wait_init(struct spdk_jsonrpc_request *request,
 			const struct spdk_json_val *params)
 {
-	struct spdk_json_write_ctx *w;
 	struct subsystem_init_poller_ctx *ctx;
 
 	if (spdk_rpc_get_state() == SPDK_RPC_RUNTIME) {
-		w = spdk_jsonrpc_begin_result(request);
+		spdk_jsonrpc_send_bool_response(request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
 	} else {
 		ctx = malloc(sizeof(struct subsystem_init_poller_ctx));
 		if (ctx == NULL) {

lib/event/app_rpc.c

@@ -76,7 +76,6 @@ rpc_spdk_kill_instance(struct spdk_jsonrpc_request *request,
 	size_t i, sig_count;
 	int signal;
 	struct rpc_spdk_kill_instance req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_spdk_kill_instance_decoders,
 				    SPDK_COUNTOF(rpc_spdk_kill_instance_decoders),
@@ -102,9 +101,7 @@ rpc_spdk_kill_instance(struct spdk_jsonrpc_request *request,
 	free_rpc_spdk_kill_instance(&req);
 	kill(getpid(), signals[i].signal);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -452,7 +449,6 @@ rpc_framework_set_scheduler(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
 	struct rpc_set_scheduler_ctx req = {NULL};
-	struct spdk_json_write_ctx *w;
 	int ret;
 
 	ret = spdk_json_decode_object(params, rpc_set_scheduler_decoders,
@@ -471,9 +467,7 @@ rpc_framework_set_scheduler(struct spdk_jsonrpc_request *request,
 		goto end;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 end:
 	free_rpc_framework_set_scheduler(&req);
@@ -491,12 +485,9 @@ static void
 rpc_thread_set_cpumask_done(void *_ctx)
 {
 	struct rpc_thread_set_cpumask_ctx *ctx = _ctx;
-	struct spdk_json_write_ctx *w;
 
 	if (ctx->status == 0) {
-		w = spdk_jsonrpc_begin_result(ctx->request);
+		spdk_jsonrpc_send_bool_response(ctx->request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(ctx->request, w);
 	} else {
 		spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
 						 spdk_strerror(-ctx->status));

lib/event/log_rpc.c

@@ -104,7 +104,6 @@ rpc_log_set_print_level(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_log_level req = {};
 	int level;
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_log_level_decoders,
 				    SPDK_COUNTOF(rpc_log_level_decoders), &req)) {
@@ -125,9 +124,7 @@ rpc_log_set_print_level(struct spdk_jsonrpc_request *request,
 	spdk_log_set_print_level(level);
 	free_rpc_log_level(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -174,7 +171,6 @@ rpc_log_set_level(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_log_level req = {};
 	int level;
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_log_level_decoders,
 				    SPDK_COUNTOF(rpc_log_level_decoders), &req)) {
@@ -196,9 +192,7 @@ rpc_log_set_level(struct spdk_jsonrpc_request *request,
 	spdk_log_set_level(level);
 	free_rpc_log_level(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -242,7 +236,6 @@ rpc_log_set_flag(struct spdk_jsonrpc_request *request,
 		 const struct spdk_json_val *params)
 {
 	struct rpc_log_flag req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_log_flag_decoders,
 				    SPDK_COUNTOF(rpc_log_flag_decoders), &req)) {
@@ -262,9 +255,7 @@ rpc_log_set_flag(struct spdk_jsonrpc_request *request,
 	spdk_log_set_flag(req.flag);
 	free_rpc_log_flag(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -278,7 +269,6 @@ rpc_log_clear_flag(struct spdk_jsonrpc_request *request,
 		   const struct spdk_json_val *params)
 {
 	struct rpc_log_flag req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_log_flag_decoders,
 				    SPDK_COUNTOF(rpc_log_flag_decoders), &req)) {
@@ -298,9 +288,7 @@ rpc_log_clear_flag(struct spdk_jsonrpc_request *request,
 	spdk_log_clear_flag(req.flag);
 	free_rpc_log_flag(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -350,7 +338,6 @@ rpc_log_enable_timestamps(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_log_enable_timestamps req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_log_enable_timestamps_decoders,
 				    SPDK_COUNTOF(rpc_log_enable_timestamps_decoders),
@@ -363,9 +350,7 @@ rpc_log_enable_timestamps(struct spdk_jsonrpc_request *request,
 
 	spdk_log_enable_timestamps(req.enabled);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("log_enable_timestamps", rpc_log_enable_timestamps, SPDK_RPC_RUNTIME)
 SPDK_LOG_REGISTER_COMPONENT(log_rpc)

lib/iscsi/iscsi_rpc.c

@@ -138,7 +138,6 @@ rpc_iscsi_create_initiator_group(struct spdk_jsonrpc_request *request,
 				 const struct spdk_json_val *params)
 {
 	struct rpc_initiator_group req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_initiator_group_decoders,
 				    SPDK_COUNTOF(rpc_initiator_group_decoders), &req)) {
@@ -162,9 +161,7 @@ rpc_iscsi_create_initiator_group(struct spdk_jsonrpc_request *request,
 
 	free_rpc_initiator_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -186,7 +183,6 @@ rpc_iscsi_initiator_group_add_initiators(struct spdk_jsonrpc_request *request,
 		const struct spdk_json_val *params)
 {
 	struct rpc_initiator_group req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_add_or_delete_initiators_decoders,
 				    SPDK_COUNTOF(rpc_add_or_delete_initiators_decoders), &req)) {
@@ -205,9 +201,7 @@ rpc_iscsi_initiator_group_add_initiators(struct spdk_jsonrpc_request *request,
 
 	free_rpc_initiator_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -224,7 +218,6 @@ rpc_iscsi_initiator_group_remove_initiators(struct spdk_jsonrpc_request *request
 		const struct spdk_json_val *params)
 {
 	struct rpc_initiator_group req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_add_or_delete_initiators_decoders,
 				    SPDK_COUNTOF(rpc_add_or_delete_initiators_decoders), &req)) {
@@ -243,9 +236,7 @@ rpc_iscsi_initiator_group_remove_initiators(struct spdk_jsonrpc_request *request
 
 	free_rpc_initiator_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -270,7 +261,6 @@ rpc_iscsi_delete_initiator_group(struct spdk_jsonrpc_request *request,
 				 const struct spdk_json_val *params)
 {
 	struct rpc_iscsi_delete_initiator_group req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_init_grp *ig;
 
 	if (spdk_json_decode_object(params, rpc_iscsi_delete_initiator_group_decoders,
@@ -287,9 +277,7 @@ rpc_iscsi_delete_initiator_group(struct spdk_jsonrpc_request *request,
 	iscsi_tgt_node_delete_map(NULL, ig);
 	iscsi_init_grp_destroy(ig);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -446,7 +434,6 @@ rpc_iscsi_create_target_node(struct spdk_jsonrpc_request *request,
 			     const struct spdk_json_val *params)
 {
 	struct rpc_target_node req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_tgt_node *target;
 	int32_t pg_tags[MAX_TARGET_MAP] = {0}, ig_tags[MAX_TARGET_MAP] = {0};
 	char *bdev_names[RPC_ISCSI_CREATE_TARGET_NODE_MAX_LUN] = {0};
@@ -496,9 +483,7 @@ rpc_iscsi_create_target_node(struct spdk_jsonrpc_request *request,
 
 	free_rpc_target_node(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -523,7 +508,6 @@ rpc_iscsi_target_node_add_pg_ig_maps(struct spdk_jsonrpc_request *request,
 				     const struct spdk_json_val *params)
 {
 	struct rpc_tgt_node_pg_ig_maps req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_tgt_node *target;
 	int32_t pg_tags[MAX_TARGET_MAP] = {0}, ig_tags[MAX_TARGET_MAP] = {0};
 	size_t i;
@@ -556,9 +540,7 @@ rpc_iscsi_target_node_add_pg_ig_maps(struct spdk_jsonrpc_request *request,
 
 	free(req.name);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -575,7 +557,6 @@ rpc_iscsi_target_node_remove_pg_ig_maps(struct spdk_jsonrpc_request *request,
 					const struct spdk_json_val *params)
 {
 	struct rpc_tgt_node_pg_ig_maps req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_tgt_node *target;
 	int32_t pg_tags[MAX_TARGET_MAP] = {0}, ig_tags[MAX_TARGET_MAP] = {0};
 	size_t i;
@@ -608,9 +589,7 @@ rpc_iscsi_target_node_remove_pg_ig_maps(struct spdk_jsonrpc_request *request,
 
 	free(req.name);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -646,14 +625,9 @@ static void
 rpc_iscsi_delete_target_node_done(void *cb_arg, int rc)
 {
 	struct rpc_iscsi_delete_target_node_ctx *ctx = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	free_rpc_iscsi_delete_target_node(&ctx->req);
-
+	spdk_jsonrpc_send_bool_response(ctx->request, rc == 0);
-	w = spdk_jsonrpc_begin_result(ctx->request);
-	spdk_json_write_bool(w, rc == 0);
-	spdk_jsonrpc_end_result(ctx->request, w);
-
 	free(ctx);
 }
 
@@ -795,7 +769,6 @@ rpc_iscsi_create_portal_group(struct spdk_jsonrpc_request *request,
 	struct rpc_portal_group req = {};
 	struct spdk_iscsi_portal_grp *pg = NULL;
 	struct spdk_iscsi_portal *portal;
-	struct spdk_json_write_ctx *w;
 	size_t i = 0;
 	int rc = -1;
 
@@ -834,9 +807,7 @@ rpc_iscsi_create_portal_group(struct spdk_jsonrpc_request *request,
 
 out:
 	if (rc == 0) {
-		w = spdk_jsonrpc_begin_result(request);
+		spdk_jsonrpc_send_bool_response(request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
 	} else {
 		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
 
@@ -862,7 +833,6 @@ rpc_iscsi_delete_portal_group(struct spdk_jsonrpc_request *request,
 			      const struct spdk_json_val *params)
 {
 	struct rpc_iscsi_delete_portal_group req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_portal_grp *pg;
 
 	if (spdk_json_decode_object(params, rpc_iscsi_delete_portal_group_decoders,
@@ -880,9 +850,7 @@ rpc_iscsi_delete_portal_group(struct spdk_jsonrpc_request *request,
 	iscsi_tgt_node_delete_map(pg, NULL);
 	iscsi_portal_grp_release(pg);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -912,7 +880,6 @@ rpc_iscsi_portal_group_set_auth(struct spdk_jsonrpc_request *request,
 				const struct spdk_json_val *params)
 {
 	struct rpc_portal_group_auth req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_portal_grp *pg;
 	int rc;
 
@@ -943,10 +910,7 @@ rpc_iscsi_portal_group_set_auth(struct spdk_jsonrpc_request *request,
 
 	pthread_mutex_unlock(&g_iscsi.mutex);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
-
 	return;
 
 exit:
@@ -1042,7 +1006,6 @@ rpc_iscsi_target_node_add_lun(struct spdk_jsonrpc_request *request,
 			      const struct spdk_json_val *params)
 {
 	struct rpc_target_lun req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_tgt_node *target;
 	int rc;
 
@@ -1068,9 +1031,7 @@ rpc_iscsi_target_node_add_lun(struct spdk_jsonrpc_request *request,
 
 	free_rpc_target_lun(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -1108,7 +1069,6 @@ rpc_iscsi_target_node_set_auth(struct spdk_jsonrpc_request *request,
 			       const struct spdk_json_val *params)
 {
 	struct rpc_target_auth req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_tgt_node *target;
 	int rc;
 
@@ -1137,9 +1097,7 @@ rpc_iscsi_target_node_set_auth(struct spdk_jsonrpc_request *request,
 
 	free_rpc_target_auth(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 exit:
@@ -1177,7 +1135,6 @@ rpc_iscsi_target_node_set_redirect(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_target_redirect req = {};
 	struct spdk_iscsi_tgt_node *target;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_target_redirect_decoders,
@@ -1211,9 +1168,7 @@ rpc_iscsi_target_node_set_redirect(struct spdk_jsonrpc_request *request,
 
 	free_rpc_target_redirect(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_target_node_set_redirect", rpc_iscsi_target_node_set_redirect,
 		  SPDK_RPC_RUNTIME)
@@ -1240,7 +1195,6 @@ rpc_iscsi_target_node_request_logout(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_target_logout req = {};
 	struct spdk_iscsi_tgt_node *target;
-	struct spdk_json_write_ctx *w;
 
 	/* If pg_tag is omitted, request all connections to the specified target
 	 * to logout.
@@ -1270,9 +1224,7 @@ rpc_iscsi_target_node_request_logout(struct spdk_jsonrpc_request *request,
 
 	free_rpc_target_logout(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_target_node_request_logout", rpc_iscsi_target_node_request_logout,
 		  SPDK_RPC_RUNTIME)
@@ -1316,7 +1268,6 @@ rpc_iscsi_set_discovery_auth(struct spdk_jsonrpc_request *request,
 			     const struct spdk_json_val *params)
 {
 	struct rpc_discovery_auth req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_discovery_auth_decoders,
@@ -1335,9 +1286,7 @@ rpc_iscsi_set_discovery_auth(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_set_discovery_auth", rpc_iscsi_set_discovery_auth, SPDK_RPC_RUNTIME)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(iscsi_set_discovery_auth, set_iscsi_discovery_auth)
@@ -1423,7 +1372,6 @@ rpc_iscsi_create_auth_group(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_auth_group req = {};
 	struct rpc_auth_secret *_secret;
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_auth_group *group = NULL;
 	int rc;
 	size_t i;
@@ -1470,9 +1418,7 @@ rpc_iscsi_create_auth_group(struct spdk_jsonrpc_request *request,
 
 	free_rpc_auth_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_create_auth_group", rpc_iscsi_create_auth_group, SPDK_RPC_RUNTIME)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(iscsi_create_auth_group, add_iscsi_auth_group)
@@ -1490,7 +1436,6 @@ rpc_iscsi_delete_auth_group(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
 	struct rpc_delete_auth_group req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_auth_group *group;
 
 	if (spdk_json_decode_object(params, rpc_delete_auth_group_decoders,
@@ -1516,9 +1461,7 @@ rpc_iscsi_delete_auth_group(struct spdk_jsonrpc_request *request,
 
 	pthread_mutex_unlock(&g_iscsi.mutex);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_delete_auth_group", rpc_iscsi_delete_auth_group, SPDK_RPC_RUNTIME)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(iscsi_delete_auth_group, delete_iscsi_auth_group)
@@ -1553,7 +1496,6 @@ rpc_iscsi_auth_group_add_secret(struct spdk_jsonrpc_request *request,
 				const struct spdk_json_val *params)
 {
 	struct rpc_add_auth_secret req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_auth_group *group;
 	int rc;
 
@@ -1593,9 +1535,7 @@ rpc_iscsi_auth_group_add_secret(struct spdk_jsonrpc_request *request,
 
 	free_rpc_add_auth_secret(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_auth_group_add_secret", rpc_iscsi_auth_group_add_secret,
 		  SPDK_RPC_RUNTIME)
@@ -1623,7 +1563,6 @@ rpc_iscsi_auth_group_remove_secret(struct spdk_jsonrpc_request *request,
 				   const struct spdk_json_val *params)
 {
 	struct rpc_remove_auth_secret req = {};
-	struct spdk_json_write_ctx *w;
 	struct spdk_iscsi_auth_group *group;
 	int rc;
 
@@ -1663,9 +1602,7 @@ rpc_iscsi_auth_group_remove_secret(struct spdk_jsonrpc_request *request,
 
 	free_rpc_remove_auth_secret(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_auth_group_remove_secret",
 		  rpc_iscsi_auth_group_remove_secret, SPDK_RPC_RUNTIME)
@@ -1725,7 +1662,6 @@ rpc_iscsi_set_options(struct spdk_jsonrpc_request *request,
 		      const struct spdk_json_val *params)
 {
 	struct spdk_iscsi_opts *opts;
-	struct spdk_json_write_ctx *w;
 
 	if (g_spdk_iscsi_opts != NULL) {
 		SPDK_ERRLOG("this RPC must not be called more than once.\n");
@@ -1763,9 +1699,7 @@ rpc_iscsi_set_options(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("iscsi_set_options", rpc_iscsi_set_options, SPDK_RPC_STARTUP)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(iscsi_set_options, set_iscsi_options)

lib/jsonrpc/Makefile

@@ -35,7 +35,7 @@ SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
 SO_VER := 2
-SO_MINOR := 0
+SO_MINOR := 1
 
 LIBNAME = jsonrpc
 C_SRCS = jsonrpc_server.c jsonrpc_server_tcp.c

lib/jsonrpc/jsonrpc_server.c

@@ -327,6 +327,17 @@ spdk_jsonrpc_end_result(struct spdk_jsonrpc_request *request, struct spdk_json_w
 	}
 }
 
+void
+spdk_jsonrpc_send_bool_response(struct spdk_jsonrpc_request *request, bool value)
+{
+	struct spdk_json_write_ctx *w;
+
+	w = spdk_jsonrpc_begin_result(request);
+	assert(w != NULL);
+	spdk_json_write_bool(w, value);
+	spdk_jsonrpc_end_result(request, w);
+}
+
 void
 spdk_jsonrpc_send_error_response(struct spdk_jsonrpc_request *request,
 				 int error_code, const char *msg)

lib/jsonrpc/spdk_jsonrpc.map

@@ -10,6 +10,7 @@
 	spdk_jsonrpc_conn_del_close_cb;
 	spdk_jsonrpc_begin_result;
 	spdk_jsonrpc_end_result;
+	spdk_jsonrpc_send_bool_response;
 	spdk_jsonrpc_send_error_response;
 	spdk_jsonrpc_send_error_response_fmt;
 	spdk_jsonrpc_begin_request;

lib/nbd/nbd_rpc.c

@@ -257,15 +257,12 @@ static void *
 nbd_disconnect_thread(void *arg)
 {
 	struct nbd_disconnect_arg *thd_arg = arg;
-	struct spdk_json_write_ctx *w;
 
 	spdk_unaffinitize_thread();
 
 	nbd_disconnect(thd_arg->nbd);
 
-	w = spdk_jsonrpc_begin_result(thd_arg->request);
+	spdk_jsonrpc_send_bool_response(thd_arg->request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(thd_arg->request, w);
 
 	free(thd_arg);
 	pthread_exit(NULL);

lib/net/net_rpc.c

@@ -62,7 +62,6 @@ rpc_net_interface_add_ip_address(struct spdk_jsonrpc_request *request,
 				 const struct spdk_json_val *params)
 {
 	struct rpc_ip_address req = {};
-	struct spdk_json_write_ctx *w;
 	int ret_val = 0;
 
 	if (spdk_json_decode_object(params, rpc_ip_address_decoders,
@@ -92,9 +91,7 @@ rpc_net_interface_add_ip_address(struct spdk_jsonrpc_request *request,
 
 	free_rpc_ip_address(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -109,7 +106,6 @@ rpc_net_interface_delete_ip_address(struct spdk_jsonrpc_request *request,
 				    const struct spdk_json_val *params)
 {
 	struct rpc_ip_address req = {};
-	struct spdk_json_write_ctx *w;
 	int ret_val = 0;
 
 	if (spdk_json_decode_object(params, rpc_ip_address_decoders,
@@ -139,9 +135,7 @@ rpc_net_interface_delete_ip_address(struct spdk_jsonrpc_request *request,
 
 	free_rpc_ip_address(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:

lib/nvmf/nvmf_rpc.c

@@ -363,9 +363,7 @@ rpc_nvmf_subsystem_started(struct spdk_nvmf_subsystem *subsystem,
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (!status) {
-		struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
+		spdk_jsonrpc_send_bool_response(request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
 	} else {
 		spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
 						     "Subsystem %s start failed",
@@ -475,7 +473,6 @@ rpc_nvmf_subsystem_set_options(struct spdk_jsonrpc_request *request,
 	struct rpc_subsystem_set_options *req;
 	struct spdk_nvmf_subsystem *subsystem;
 	struct spdk_nvmf_transport *transport;
-	struct spdk_json_write_ctx *w;
 	struct spdk_nvmf_tgt *tgt;
 	int rc;
 
@@ -533,9 +530,7 @@ rpc_nvmf_subsystem_set_options(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free(req->nqn);
@@ -562,14 +557,11 @@ rpc_nvmf_subsystem_stopped(struct spdk_nvmf_subsystem *subsystem,
 			   void *cb_arg, int status)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	nvmf_subsystem_remove_all_listeners(subsystem, true);
 	spdk_nvmf_subsystem_destroy(subsystem);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static const struct spdk_json_object_decoder rpc_delete_subsystem_decoders[] = {
@@ -717,7 +709,6 @@ nvmf_rpc_listen_resumed(struct spdk_nvmf_subsystem *subsystem,
 {
 	struct nvmf_rpc_listener_ctx *ctx = cb_arg;
 	struct spdk_jsonrpc_request *request;
-	struct spdk_json_write_ctx *w;
 
 	request = ctx->request;
 	if (ctx->response_sent) {
@@ -728,9 +719,7 @@ nvmf_rpc_listen_resumed(struct spdk_nvmf_subsystem *subsystem,
 
 	nvmf_rpc_listener_ctx_free(ctx);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -1380,7 +1369,6 @@ nvmf_rpc_remove_ns_resumed(struct spdk_nvmf_subsystem *subsystem,
 	struct nvmf_rpc_remove_ns_ctx *ctx = cb_arg;
 	struct spdk_jsonrpc_request *request = ctx->request;
 	bool response_sent = ctx->response_sent;
-	struct spdk_json_write_ctx *w;
 
 	nvmf_rpc_remove_ns_ctx_free(ctx);
 
@@ -1388,9 +1376,7 @@ nvmf_rpc_remove_ns_resumed(struct spdk_nvmf_subsystem *subsystem,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -1502,7 +1488,6 @@ rpc_nvmf_subsystem_add_host(struct spdk_jsonrpc_request *request,
 	struct nvmf_rpc_host_ctx ctx = {};
 	struct spdk_nvmf_subsystem *subsystem;
 	struct spdk_nvmf_tgt *tgt;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, nvmf_rpc_subsystem_host_decoder,
@@ -1538,9 +1523,7 @@ rpc_nvmf_subsystem_add_host(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	nvmf_rpc_host_ctx_free(&ctx);
 }
 SPDK_RPC_REGISTER("nvmf_subsystem_add_host", rpc_nvmf_subsystem_add_host, SPDK_RPC_RUNTIME)
@@ -1549,11 +1532,8 @@ static void
 rpc_nvmf_subsystem_remove_host_done(void *_ctx, int status)
 {
 	struct nvmf_rpc_host_ctx *ctx = _ctx;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(ctx->request);
+	spdk_jsonrpc_send_bool_response(ctx->request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(ctx->request, w);
 	nvmf_rpc_host_ctx_free(ctx);
 	free(ctx);
 }
@@ -1640,7 +1620,6 @@ rpc_nvmf_subsystem_allow_any_host(struct spdk_jsonrpc_request *request,
 	struct nvmf_rpc_host_ctx ctx = {};
 	struct spdk_nvmf_subsystem *subsystem;
 	struct spdk_nvmf_tgt *tgt;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, nvmf_rpc_subsystem_any_host_decoder,
@@ -1676,9 +1655,7 @@ rpc_nvmf_subsystem_allow_any_host(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	nvmf_rpc_host_ctx_free(&ctx);
 }
 SPDK_RPC_REGISTER("nvmf_subsystem_allow_any_host", rpc_nvmf_subsystem_allow_any_host,
@@ -1747,11 +1724,8 @@ static void
 nvmf_rpc_destroy_target_done(void *ctx, int status)
 {
 	struct spdk_jsonrpc_request	*request = ctx;
-	struct spdk_json_write_ctx	*w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -1927,7 +1901,6 @@ nvmf_rpc_tgt_add_transport_done(void *cb_arg, int status)
 {
 	struct nvmf_rpc_create_transport_ctx *ctx = cb_arg;
 	struct spdk_jsonrpc_request *request;
-	struct spdk_json_write_ctx *w;
 
 	request = ctx->request;
 	nvmf_rpc_create_transport_ctx_free(ctx);
@@ -1940,9 +1913,7 @@ nvmf_rpc_tgt_add_transport_done(void *cb_arg, int status)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

lib/sock/sock_rpc.c

@@ -126,7 +126,6 @@ rpc_sock_impl_set_options(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct spdk_rpc_sock_impl_set_opts opts = {};
-	struct spdk_json_write_ctx *w;
 	size_t len;
 	int rc;
 
@@ -166,9 +165,7 @@ rpc_sock_impl_set_options(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	free(opts.impl_name);
 }
 SPDK_RPC_REGISTER("sock_impl_set_options", rpc_sock_impl_set_options, SPDK_RPC_STARTUP)
@@ -178,7 +175,6 @@ rpc_sock_set_default_impl(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	char *impl_name = NULL;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	/* Reuse get_opts decoder */
@@ -198,9 +194,7 @@ rpc_sock_set_default_impl(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	free(impl_name);
 }
 SPDK_RPC_REGISTER("sock_set_default_impl", rpc_sock_set_default_impl, SPDK_RPC_STARTUP)

lib/trace/trace_rpc.c

@@ -55,7 +55,6 @@ rpc_trace_enable_tpoint_group(struct spdk_jsonrpc_request *request,
 			      const struct spdk_json_val *params)
 {
 	struct rpc_tpoint_group req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_tpoint_group_decoders,
 				    SPDK_COUNTOF(rpc_tpoint_group_decoders), &req)) {
@@ -74,9 +73,7 @@ rpc_trace_enable_tpoint_group(struct spdk_jsonrpc_request *request,
 
 	free_rpc_tpoint_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -92,7 +89,6 @@ rpc_trace_disable_tpoint_group(struct spdk_jsonrpc_request *request,
 			       const struct spdk_json_val *params)
 {
 	struct rpc_tpoint_group req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (spdk_json_decode_object(params, rpc_tpoint_group_decoders,
 				    SPDK_COUNTOF(rpc_tpoint_group_decoders), &req)) {
@@ -111,9 +107,7 @@ rpc_trace_disable_tpoint_group(struct spdk_jsonrpc_request *request,
 
 	free_rpc_tpoint_group(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:

lib/vhost/vhost_rpc.c

@@ -66,7 +66,6 @@ rpc_vhost_create_scsi_controller(struct spdk_jsonrpc_request *request,
 				 const struct spdk_json_val *params)
 {
 	struct rpc_vhost_scsi_ctrlr req = {0};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_vhost_create_scsi_ctrlr,
@@ -84,9 +83,7 @@ rpc_vhost_create_scsi_controller(struct spdk_jsonrpc_request *request,
 
 	free_rpc_vhost_scsi_ctrlr(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -184,11 +181,8 @@ static int
 rpc_vhost_scsi_controller_remove_target_finish_cb(struct spdk_vhost_dev *vdev, void *arg)
 {
 	struct spdk_jsonrpc_request *request = arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return 0;
 }
 
@@ -266,7 +260,6 @@ rpc_vhost_create_blk_controller(struct spdk_jsonrpc_request *request,
 				const struct spdk_json_val *params)
 {
 	struct rpc_vhost_blk_ctrlr req = {0};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_construct_vhost_blk_ctrlr,
@@ -285,9 +278,7 @@ rpc_vhost_create_blk_controller(struct spdk_jsonrpc_request *request,
 
 	free_rpc_vhost_blk_ctrlr(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -319,7 +310,6 @@ rpc_vhost_delete_controller(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
 	struct rpc_delete_vhost_ctrlr req = {0};
-	struct spdk_json_write_ctx *w;
 	struct spdk_vhost_dev *vdev;
 	int rc;
 
@@ -346,10 +336,7 @@ rpc_vhost_delete_controller(struct spdk_jsonrpc_request *request,
 
 	free_rpc_delete_vhost_ctrlr(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
-
 	return;
 
 invalid:
@@ -484,7 +471,6 @@ rpc_vhost_controller_set_coalescing(struct spdk_jsonrpc_request *request,
 				    const struct spdk_json_val *params)
 {
 	struct rpc_vhost_ctrlr_coalescing req = {0};
-	struct spdk_json_write_ctx *w;
 	struct spdk_vhost_dev *vdev;
 	int rc;
 
@@ -511,10 +497,7 @@ rpc_vhost_controller_set_coalescing(struct spdk_jsonrpc_request *request,
 
 	free_rpc_set_vhost_controllers_event_coalescing(&req);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
-
 	return;
 
 invalid:

module/accel/idxd/accel_engine_idxd_rpc.c

@@ -52,7 +52,6 @@ rpc_idxd_scan_accel_engine(struct spdk_jsonrpc_request *request,
 			   const struct spdk_json_val *params)
 {
 	struct rpc_idxd_scan_accel_engine req = {};
-	struct spdk_json_write_ctx *w;
 
 	if (params != NULL) {
 		if (spdk_json_decode_object(params, rpc_idxd_scan_accel_engine_decoder,
@@ -68,8 +67,6 @@ rpc_idxd_scan_accel_engine(struct spdk_jsonrpc_request *request,
 	SPDK_NOTICELOG("Enabling IDXD with config #%u\n", req.config_number);
 	accel_engine_idxd_enable_probe(req.config_number);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("idxd_scan_accel_engine", rpc_idxd_scan_accel_engine, SPDK_RPC_STARTUP)

module/accel/ioat/accel_engine_ioat_rpc.c

@@ -80,7 +80,6 @@ rpc_ioat_scan_accel_engine(struct spdk_jsonrpc_request *request,
 			   const struct spdk_json_val *params)
 {
 	struct rpc_ioat_scan_accel_engine req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (params != NULL) {
@@ -107,9 +106,7 @@ rpc_ioat_scan_accel_engine(struct spdk_jsonrpc_request *request,
 
 	accel_engine_ioat_enable_probe();
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("ioat_scan_accel_engine", rpc_ioat_scan_accel_engine, SPDK_RPC_STARTUP)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(ioat_scan_accel_engine, ioat_scan_copy_engine)

module/bdev/aio/bdev_aio_rpc.c

@@ -108,10 +108,8 @@ static void
 _rpc_bdev_aio_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/compress/vbdev_compress_rpc.c

@@ -111,7 +111,6 @@ rpc_bdev_compress_set_pmd(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_compress_set_pmd req;
-	struct spdk_json_write_ctx *w;
 	int rc = 0;
 
 	if (spdk_json_decode_object(params, rpc_compress_pmd_decoder,
@@ -135,11 +134,7 @@ rpc_bdev_compress_set_pmd(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	if (w != NULL) {
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
-	}
 }
 SPDK_RPC_REGISTER("bdev_compress_set_pmd", rpc_bdev_compress_set_pmd,
 		  SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)
@@ -225,11 +220,8 @@ static void
 _rpc_bdev_compress_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/crypto/vbdev_crypto_rpc.c

@@ -155,10 +155,8 @@ static void
 rpc_bdev_crypto_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/delay/vbdev_delay_rpc.c

@@ -63,7 +63,6 @@ rpc_bdev_delay_update_latency(struct spdk_jsonrpc_request *request,
 			      const struct spdk_json_val *params)
 {
 	struct rpc_update_latency req = {NULL};
-	struct spdk_json_write_ctx *w;
 	enum delay_io_type latency_type;
 	int rc = 0;
 
@@ -104,9 +103,7 @@ rpc_bdev_delay_update_latency(struct spdk_jsonrpc_request *request,
 		SPDK_UNREACHABLE();
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_update_latency(&req);
@@ -189,11 +186,8 @@ static void
 rpc_bdev_delay_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/error/vbdev_error_rpc.c

@@ -91,7 +91,6 @@ rpc_bdev_error_create(struct spdk_jsonrpc_request *request,
 		      const struct spdk_json_val *params)
 {
 	struct rpc_bdev_error_create req = {};
-	struct spdk_json_write_ctx *w;
 	int rc = 0;
 
 	if (spdk_json_decode_object(params, rpc_bdev_error_create_decoders,
@@ -109,9 +108,7 @@ rpc_bdev_error_create(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_error_create(&req);
@@ -137,11 +134,8 @@ static void
 rpc_bdev_error_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -200,7 +194,6 @@ rpc_bdev_error_inject_error(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
 	struct rpc_error_information req = {};
-	struct spdk_json_write_ctx *w;
 	uint32_t io_type;
 	uint32_t error_type;
 	int rc = 0;
@@ -234,9 +227,7 @@ rpc_bdev_error_inject_error(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_error_information(&req);

module/bdev/ftl/bdev_ftl_rpc.c

@@ -229,10 +229,8 @@ static void
 rpc_bdev_ftl_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/iscsi/bdev_iscsi_rpc.c

@@ -122,10 +122,8 @@ static void
 rpc_bdev_iscsi_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/lvol/vbdev_lvol_rpc.c

@@ -183,16 +183,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_rename_lvstore_decode
 static void
 rpc_bdev_lvol_rename_lvstore_cb(void *cb_arg, int lvserrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvserrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -251,16 +248,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_delete_lvstore_decode
 static void
 rpc_lvol_store_destroy_cb(void *cb_arg, int lvserrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvserrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -579,16 +573,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_rename_decoders[] = {
 static void
 rpc_bdev_lvol_rename_cb(void *cb_arg, int lvolerrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvolerrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -655,16 +646,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_inflate_decoders[] =
 static void
 rpc_bdev_lvol_inflate_cb(void *cb_arg, int lvolerrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvolerrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -775,16 +763,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_resize_decoders[] = {
 static void
 rpc_bdev_lvol_resize_cb(void *cb_arg, int lvolerrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvolerrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -850,16 +835,13 @@ static const struct spdk_json_object_decoder rpc_set_ro_lvol_bdev_decoders[] = {
 static void
 rpc_set_ro_lvol_bdev_cb(void *cb_arg, int lvolerrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvolerrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:
@@ -931,16 +913,13 @@ static const struct spdk_json_object_decoder rpc_bdev_lvol_delete_decoders[] = {
 static void
 rpc_bdev_lvol_delete_cb(void *cb_arg, int lvolerrno)
 {
-	struct spdk_json_write_ctx *w;
 	struct spdk_jsonrpc_request *request = cb_arg;
 
 	if (lvolerrno != 0) {
 		goto invalid;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 	return;
 
 invalid:

module/bdev/malloc/bdev_malloc_rpc.c

@@ -131,10 +131,8 @@ static void
 rpc_bdev_malloc_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/null/bdev_null_rpc.c

@@ -170,10 +170,8 @@ static void
 rpc_bdev_null_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/nvme/bdev_nvme_cuse_rpc.c

@@ -61,7 +61,6 @@ rpc_nvme_cuse_register(struct spdk_jsonrpc_request *request,
 		       const struct spdk_json_val *params)
 {
 	struct rpc_nvme_cuse_register req = {};
-	struct spdk_json_write_ctx *w;
 	struct nvme_bdev_ctrlr *bdev_ctrlr = NULL;
 	int rc;
 
@@ -88,9 +87,7 @@ rpc_nvme_cuse_register(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_nvme_cuse_register(&req);
@@ -116,7 +113,6 @@ rpc_nvme_cuse_unregister(struct spdk_jsonrpc_request *request,
 			 const struct spdk_json_val *params)
 {
 	struct rpc_nvme_cuse_unregister req = {};
-	struct spdk_json_write_ctx *w;
 	struct nvme_bdev_ctrlr *bdev_ctrlr = NULL;
 	int rc;
 
@@ -142,9 +138,7 @@ rpc_nvme_cuse_unregister(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_nvme_cuse_unregister(&req);

module/bdev/nvme/bdev_nvme_rpc.c

@@ -91,7 +91,6 @@ rpc_bdev_nvme_set_options(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct spdk_bdev_nvme_opts opts;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	bdev_nvme_get_opts(&opts);
@@ -110,9 +109,7 @@ rpc_bdev_nvme_set_options(struct spdk_jsonrpc_request *request,
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 	return;
 }
@@ -134,10 +131,8 @@ static void
 rpc_bdev_nvme_set_hotplug_done(void *ctx)
 {
 	struct spdk_jsonrpc_request *request = ctx;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, true);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -522,7 +517,6 @@ rpc_bdev_nvme_detach_controller(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_bdev_nvme_detach_controller req = {NULL};
 	struct spdk_nvme_transport_id trid = {};
-	struct spdk_json_write_ctx *w;
 	size_t len, maxlen;
 	int rc = 0;
 	bool all_trid_entries, one_trid_entry;
@@ -599,9 +593,7 @@ rpc_bdev_nvme_detach_controller(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_nvme_detach_controller(&req);

module/bdev/nvme/bdev_ocssd_rpc.c

@@ -155,16 +155,13 @@ static void
 rpc_bdev_ocssd_delete_done(int status, void *_ctx)
 {
 	struct rpc_bdev_ocssd_delete_ctx *ctx = _ctx;
-	struct spdk_json_write_ctx *w;
 
 	if (status != 0) {
 		spdk_jsonrpc_send_error_response(ctx->request, status, spdk_strerror(-status));
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(ctx->request);
+	spdk_jsonrpc_send_bool_response(ctx->request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(ctx->request, w);
 out:
 	free_rpc_delete_ocssd_bdev(&ctx->rpc);
 	free(ctx);

module/bdev/nvme/vbdev_opal_rpc.c

@@ -60,7 +60,6 @@ rpc_bdev_nvme_opal_init(struct spdk_jsonrpc_request *request,
 			const struct spdk_json_val *params)
 {
 	struct rpc_bdev_nvme_opal_init req = {};
-	struct spdk_json_write_ctx *w;
 	struct nvme_bdev_ctrlr *nvme_ctrlr;
 	int rc;
 
@@ -107,9 +106,7 @@ rpc_bdev_nvme_opal_init(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 out:
 	free_rpc_bdev_nvme_opal_init(&req);
@@ -138,7 +135,6 @@ rpc_bdev_nvme_opal_revert(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_bdev_nvme_opal_revert req = {};
-	struct spdk_json_write_ctx *w;
 	struct nvme_bdev_ctrlr *nvme_ctrlr;
 	int rc;
 
@@ -167,9 +163,7 @@ rpc_bdev_nvme_opal_revert(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 out:
 	free_rpc_bdev_nvme_opal_revert(&req);
@@ -320,7 +314,6 @@ rpc_bdev_opal_delete(struct spdk_jsonrpc_request *request,
 		     const struct spdk_json_val *params)
 {
 	struct rpc_bdev_opal_delete req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_bdev_opal_delete_decoders,
@@ -337,9 +330,7 @@ rpc_bdev_opal_delete(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 out:
 	free_rpc_bdev_opal_delete(&req);
 }
@@ -372,7 +363,6 @@ rpc_bdev_opal_set_lock_state(struct spdk_jsonrpc_request *request,
 			     const struct spdk_json_val *params)
 {
 	struct rpc_bdev_opal_set_lock_state req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_bdev_opal_set_lock_state_decoders,
@@ -389,9 +379,7 @@ rpc_bdev_opal_set_lock_state(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 out:
 	free_rpc_bdev_opal_set_lock_state(&req);
@@ -425,7 +413,6 @@ rpc_bdev_opal_new_user(struct spdk_jsonrpc_request *request,
 		       const struct spdk_json_val *params)
 {
 	struct rpc_bdev_opal_new_user req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_bdev_opal_new_user_decoders,
@@ -443,9 +430,7 @@ rpc_bdev_opal_new_user(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 out:
 	free_rpc_bdev_opal_new_user(&req);

module/bdev/ocf/vbdev_ocf_rpc.c

@@ -125,16 +125,13 @@ static void
 delete_cb(void *cb_arg, int status)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	if (status) {
 		spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
 						     "Could not delete OCF vbdev: %d",
 						     status);
 	} else {
-		w = spdk_jsonrpc_begin_result(request);
+		spdk_jsonrpc_send_bool_response(request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
 	}
 }
 

module/bdev/passthru/vbdev_passthru_rpc.c

@@ -111,11 +111,8 @@ static void
 rpc_bdev_passthru_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/pmem/bdev_pmem_rpc.c

@@ -107,10 +107,8 @@ static void
 _rpc_bdev_pmem_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -166,7 +164,6 @@ rpc_bdev_pmem_create_pool(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_bdev_pmem_create_pool req = {};
-	struct spdk_json_write_ctx *w;
 	uint64_t pool_size;
 	PMEMblkpool *pbp;
 
@@ -205,9 +202,7 @@ rpc_bdev_pmem_create_pool(struct spdk_jsonrpc_request *request,
 
 	pmemblk_close(pbp);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_pmem_create_pool(&req);
@@ -303,7 +298,6 @@ rpc_bdev_pmem_delete_pool(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_bdev_pmem_delete_pool req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_bdev_pmem_delete_pool_decoders,
@@ -326,9 +320,7 @@ rpc_bdev_pmem_delete_pool(struct spdk_jsonrpc_request *request,
 
 	unlink(req.pmem_file);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_pmem_delete_pool(&req);

module/bdev/raid/bdev_raid_rpc.c

@@ -250,7 +250,6 @@ rpc_bdev_raid_create(struct spdk_jsonrpc_request *request,
 		     const struct spdk_json_val *params)
 {
 	struct rpc_bdev_raid_create	req = {};
-	struct spdk_json_write_ctx	*w;
 	struct raid_bdev_config		*raid_cfg;
 	int				rc;
 	size_t				i;
@@ -314,9 +313,7 @@ rpc_bdev_raid_create(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 
 cleanup:
 	free_rpc_bdev_raid_create(&req);
@@ -373,7 +370,6 @@ bdev_raid_delete_done(void *cb_arg, int rc)
 	struct rpc_bdev_raid_delete_ctx *ctx = cb_arg;
 	struct raid_bdev_config *raid_cfg;
 	struct spdk_jsonrpc_request *request = ctx->request;
-	struct spdk_json_write_ctx *w;
 
 	if (rc != 0) {
 		SPDK_ERRLOG("Failed to delete raid bdev %s (%d): %s\n",
@@ -388,9 +384,7 @@ bdev_raid_delete_done(void *cb_arg, int rc)
 
 	raid_bdev_config_cleanup(raid_cfg);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 exit:
 	free_rpc_bdev_raid_delete(&ctx->req);
 	free(ctx);

module/bdev/rbd/bdev_rbd_rpc.c

@@ -162,11 +162,8 @@ static void
 _rpc_bdev_rbd_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void
@@ -220,7 +217,6 @@ rpc_bdev_rbd_resize(struct spdk_jsonrpc_request *request,
 {
 	struct rpc_bdev_rbd_resize req = {};
 	struct spdk_bdev *bdev;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_bdev_rbd_resize_decoders,
@@ -243,9 +239,7 @@ rpc_bdev_rbd_resize(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 cleanup:
 	free_rpc_bdev_rbd_resize(&req);
 }

module/bdev/split/vbdev_split_rpc.c

@@ -118,7 +118,6 @@ rpc_bdev_split_delete(struct spdk_jsonrpc_request *request,
 		      const struct spdk_json_val *params)
 {
 	struct rpc_delete_split req = {};
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_delete_split_decoders,
@@ -135,9 +134,7 @@ rpc_bdev_split_delete(struct spdk_jsonrpc_request *request,
 		goto out;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 out:
 	free(req.base_bdev);
 }

module/bdev/uring/bdev_uring_rpc.c

@@ -114,10 +114,8 @@ static void
 _rpc_bdev_uring_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
 
-	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 
 }
 

module/bdev/virtio/bdev_virtio_rpc.c

@@ -55,7 +55,6 @@ static void
 rpc_bdev_virtio_detach_controller_cb(void *ctx, int errnum)
 {
 	struct spdk_jsonrpc_request *request = ctx;
-	struct spdk_json_write_ctx *w;
 
 	if (errnum != 0) {
 		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
@@ -63,9 +62,7 @@ rpc_bdev_virtio_detach_controller_cb(void *ctx, int errnum)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/bdev/zone_block/vbdev_zone_block_rpc.c

@@ -116,11 +116,8 @@ static void
 _rpc_delete_zone_block_cb(void *cb_ctx, int rc)
 {
 	struct spdk_jsonrpc_request *request = cb_ctx;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, rc == 0);
-	spdk_json_write_bool(w, rc == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

module/blobfs/bdev/blobfs_bdev_rpc.c

@@ -61,7 +61,6 @@ rpc_blobfs_set_cache_size(struct spdk_jsonrpc_request *request,
 			  const struct spdk_json_val *params)
 {
 	struct rpc_blobfs_set_cache_size req;
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	if (spdk_json_decode_object(params, rpc_blobfs_set_cache_size_decoders,
@@ -83,9 +82,7 @@ rpc_blobfs_set_cache_size(struct spdk_jsonrpc_request *request,
 
 	rc = spdk_fs_set_cache_size(req.size_in_mb);
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, rc == 0);
-	spdk_json_write_bool(w, rc == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 SPDK_RPC_REGISTER("blobfs_set_cache_size", rpc_blobfs_set_cache_size,
@@ -112,7 +109,6 @@ static void
 _rpc_blobfs_detect_done(void *cb_arg, int fserrno)
 {
 	struct rpc_blobfs_detect *req = cb_arg;
-	struct spdk_json_write_ctx *w;
 	bool existed = true;
 
 	if (fserrno == -EILSEQ) {
@@ -125,9 +121,7 @@ _rpc_blobfs_detect_done(void *cb_arg, int fserrno)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(req->request);
+	spdk_jsonrpc_send_bool_response(req->request, existed);
-	spdk_json_write_bool(w, existed);
-	spdk_jsonrpc_end_result(req->request, w);
 
 	free_rpc_blobfs_detect(req);
 }
@@ -212,7 +206,6 @@ static void
 _rpc_blobfs_create_done(void *cb_arg, int fserrno)
 {
 	struct rpc_blobfs_create *req = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	if (fserrno != 0) {
 		spdk_jsonrpc_send_error_response(req->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
@@ -221,9 +214,7 @@ _rpc_blobfs_create_done(void *cb_arg, int fserrno)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(req->request);
+	spdk_jsonrpc_send_bool_response(req->request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(req->request, w);
 
 	free_rpc_blobfs_create(req);
 }
@@ -286,7 +277,6 @@ static void
 _rpc_blobfs_mount_done(void *cb_arg, int fserrno)
 {
 	struct rpc_blobfs_mount *req = cb_arg;
-	struct spdk_json_write_ctx *w;
 
 	if (fserrno == -EILSEQ) {
 		/* There is no blobfs existing on bdev */
@@ -301,9 +291,7 @@ _rpc_blobfs_mount_done(void *cb_arg, int fserrno)
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(req->request);
+	spdk_jsonrpc_send_bool_response(req->request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(req->request, w);
 
 	free_rpc_blobfs_mount(req);
 }

module/event/subsystems/nvmf/nvmf_rpc.c

@@ -44,7 +44,6 @@ static void
 rpc_nvmf_set_max_subsystems(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
-	struct spdk_json_write_ctx *w;
 	uint32_t max_subsystems = 0;
 
 	if (g_spdk_nvmf_tgt_max_subsystems != 0) {
@@ -66,9 +65,7 @@ rpc_nvmf_set_max_subsystems(struct spdk_jsonrpc_request *request,
 
 	g_spdk_nvmf_tgt_max_subsystems = max_subsystems;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("nvmf_set_max_subsystems", rpc_nvmf_set_max_subsystems,
 		  SPDK_RPC_STARTUP)
@@ -112,7 +109,6 @@ rpc_nvmf_set_config(struct spdk_jsonrpc_request *request,
 		    const struct spdk_json_val *params)
 {
 	struct spdk_nvmf_tgt_conf conf;
-	struct spdk_json_write_ctx *w;
 
 	memcpy(&conf, &g_spdk_nvmf_tgt_conf, sizeof(conf));
 
@@ -128,9 +124,7 @@ rpc_nvmf_set_config(struct spdk_jsonrpc_request *request,
 
 	memcpy(&g_spdk_nvmf_tgt_conf, &conf, sizeof(conf));
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("nvmf_set_config", rpc_nvmf_set_config, SPDK_RPC_STARTUP)
 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(nvmf_set_config, set_nvmf_target_config)

module/event/subsystems/vmd/vmd_rpc.c

@@ -42,14 +42,11 @@
 static void
 rpc_vmd_enable(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
 {
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	rc = vmd_subsystem_init();
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, rc == 0);
-	spdk_json_write_bool(w, rc == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 SPDK_RPC_REGISTER("enable_vmd", rpc_vmd_enable, SPDK_RPC_STARTUP)

test/app/fuzz/vhost_fuzz/vhost_fuzz_rpc.c

@@ -59,7 +59,6 @@ static void
 spdk_rpc_fuzz_vhost_create_dev(struct spdk_jsonrpc_request *request,
 			       const struct spdk_json_val *params)
 {
-	struct spdk_json_write_ctx *w;
 	struct rpc_fuzz_vhost_dev_create req = {0};
 	int rc;
 
@@ -97,9 +96,7 @@ spdk_rpc_fuzz_vhost_create_dev(struct spdk_jsonrpc_request *request,
 							 "Unexpected error code.\n");
 		}
 	} else {
-		w = spdk_jsonrpc_begin_result(request);
+		spdk_jsonrpc_send_bool_response(request, true);
-		spdk_json_write_bool(w, true);
-		spdk_jsonrpc_end_result(request, w);
 	}
 
 	free(req.socket);

test/external_code/passthru/vbdev_passthru_rpc.c

@@ -110,11 +110,8 @@ static void
 rpc_bdev_passthru_delete_cb(void *cb_arg, int bdeverrno)
 {
 	struct spdk_jsonrpc_request *request = cb_arg;
-	struct spdk_json_write_ctx *w;
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, bdeverrno == 0);
-	spdk_json_write_bool(w, bdeverrno == 0);
-	spdk_jsonrpc_end_result(request, w);
 }
 
 static void

test/rpc_client/rpc_client_test.c

@@ -216,17 +216,13 @@ static void
 rpc_test_method_null_params(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
-	struct spdk_json_write_ctx *w;
-
 	if (params != NULL) {
 		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
 						 "rpc_test_method_null_params(): Parameters are not NULL");
 		return;
 	}
-	w = spdk_jsonrpc_begin_result(request);
+
-	assert(w != NULL);
+	spdk_jsonrpc_send_bool_response(request, true);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
 }
 SPDK_RPC_REGISTER("test_null_params", rpc_test_method_null_params, SPDK_RPC_RUNTIME)
 
@@ -243,7 +239,6 @@ static void
 rpc_hook_conn_close(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
 {
 	struct spdk_jsonrpc_server_conn *conn = spdk_jsonrpc_get_conn(request);
-	struct spdk_json_write_ctx *w;
 	int rc;
 
 	rc = spdk_jsonrpc_conn_add_close_cb(conn, rpc_test_conn_close_cb, (void *)(intptr_t)(42));
@@ -267,11 +262,7 @@ rpc_hook_conn_close(struct spdk_jsonrpc_request *request, const struct spdk_json
 		return;
 	}
 
-	w = spdk_jsonrpc_begin_result(request);
+	spdk_jsonrpc_send_bool_response(request, true);
-	assert(w != NULL);
-	spdk_json_write_bool(w, true);
-	spdk_jsonrpc_end_result(request, w);
-
 }
 SPDK_RPC_REGISTER("hook_conn_close", rpc_hook_conn_close, SPDK_RPC_RUNTIME | SPDK_RPC_STARTUP)
 

test/unit/lib/bdev/raid/bdev_raid.c/bdev_raid_ut.c

@@ -116,6 +116,8 @@ DEFINE_STUB_V(spdk_rpc_register_method, (const char *method, spdk_rpc_method_han
 DEFINE_STUB_V(spdk_rpc_register_alias_deprecated, (const char *method, const char *alias));
 DEFINE_STUB_V(spdk_jsonrpc_end_result, (struct spdk_jsonrpc_request *request,
 					struct spdk_json_write_ctx *w));
+DEFINE_STUB_V(spdk_jsonrpc_send_bool_response, (struct spdk_jsonrpc_request *request,
+		bool value));
 DEFINE_STUB(spdk_json_decode_string, int, (const struct spdk_json_val *val, void *out), 0);
 DEFINE_STUB(spdk_json_decode_uint32, int, (const struct spdk_json_val *val, void *out), 0);
 DEFINE_STUB(spdk_json_decode_array, int, (const struct spdk_json_val *values,

test/unit/lib/bdev/vbdev_zone_block.c/vbdev_zone_block_ut.c

@@ -84,6 +84,8 @@ DEFINE_STUB_V(spdk_rpc_register_method, (const char *method, spdk_rpc_method_han
 		uint32_t state_mask));
 DEFINE_STUB_V(spdk_jsonrpc_end_result, (struct spdk_jsonrpc_request *request,
 					struct spdk_json_write_ctx *w));
+DEFINE_STUB_V(spdk_jsonrpc_send_bool_response, (struct spdk_jsonrpc_request *request,
+		bool value));
 DEFINE_STUB(spdk_bdev_get_io_channel, struct spdk_io_channel *, (struct spdk_bdev_desc *desc),
 	    (void *)0);