From bc7b39a5f04f4ea6a2ea14da1bbdd3c81e54a27c Mon Sep 17 00:00:00 2001
From: Yao Liu <yotta.liu@ucloud.cn>
Date: Wed, 13 Nov 2019 18:58:00 +0800
Subject: [PATCH] bdev/uring: dump filename in driver_specific JSON

Signed-off-by: Yao Liu <yotta.liu@ucloud.cn>
Change-Id: I9a3bf72175d8bf9ede7149fb6ea14dc9931ce1f6
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/474179
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 module/bdev/uring/bdev_uring.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/module/bdev/uring/bdev_uring.c b/module/bdev/uring/bdev_uring.c
index 15f81abfa..18b3a8d73 100644
--- a/module/bdev/uring/bdev_uring.c
+++ b/module/bdev/uring/bdev_uring.c
@@ -367,12 +367,26 @@ bdev_uring_get_io_channel(void *ctx)
 	return spdk_get_io_channel(uring);
 }
 
+static int
+bdev_uring_dump_info_json(void *ctx, struct spdk_json_write_ctx *w)
+{
+	struct bdev_uring *uring = ctx;
+
+	spdk_json_write_named_object_begin(w, "uring");
+
+	spdk_json_write_named_string(w, "filename", uring->filename);
+
+	spdk_json_write_object_end(w);
+
+	return 0;
+}
 
 static const struct spdk_bdev_fn_table uring_fn_table = {
 	.destruct		= bdev_uring_destruct,
 	.submit_request		= bdev_uring_submit_request,
 	.io_type_supported	= bdev_uring_io_type_supported,
 	.get_io_channel		= bdev_uring_get_io_channel,
+	.dump_info_json		= bdev_uring_dump_info_json,
 };
 
 static void uring_free_bdev(struct bdev_uring *uring)