From 4a093a2ac03038e1cf517c7b1a8ec3768199e918 Mon Sep 17 00:00:00 2001
From: Frederic Robra
Date: Tue, 2 Jul 2019 17:18:13 +0200
Subject: added send cmd to read from server

---
 src/kernel/block.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

(limited to 'src/kernel/block.c')

diff --git a/src/kernel/block.c b/src/kernel/block.c
index 4eb52c5..26caa25 100644
--- a/src/kernel/block.c
+++ b/src/kernel/block.c
@@ -13,13 +13,7 @@
 
 #define dnbd3_sock_create(af,type,proto,sock) sock_create_kern(&init_net, (af) == HOST_IP4 ? AF_INET : AF_INET6, type, proto, sock)
 
-#define init_msghdr(h) do { \
-        h.msg_name = NULL; \
-        h.msg_namelen = 0; \
-        h.msg_control = NULL; \
-        h.msg_controllen = 0; \
-        h.msg_flags = MSG_WAITALL | MSG_NOSIGNAL; \
-	} while (0)
+
 
 static int dnbd3_open(struct block_device *bdev, fmode_t mode)
 {
@@ -222,6 +216,8 @@ int dnbd3_net_connect(dnbd3_device_t *dev)
 	dev->panic = 0;
 	dev->panic_count = 0;
 
+	refcount_inc(&dev->config_refs);
+
 	// Enqueue request to request_queue_send for a fresh list of alt servers
 	//TODO refresh alt server list
 
@@ -337,7 +333,7 @@ static int dnbd3_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd
 			dev->imgname = imgname;
 			dev->rid = msg->rid;
 			dev->use_server_provided_alts = msg->use_server_provided_alts;
-			// Forget all alt servers on explicit connect, set first al server to initial server
+			// Forget all alt servers on explicit connect, set first alt server to initial server
 			memset(dev->alt_servers, 0, sizeof(dev->alt_servers[0])*NUMBER_SERVERS);
 			memcpy(dev->alt_servers, &dev->initial_server, sizeof(dev->alt_servers[0]));
 //#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
@@ -397,7 +393,7 @@ static int dnbd3_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd
 		break;
 
 	default:
-		printk(KERN_DEBUG "dnbd3: ioctl unhandled cmd\n");
+		printk(KERN_DEBUG "dnbd3: ioctl unhandled cmd %d\n", cmd);
 		result = -EIO;
 		break;
 	}
-- 
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