From: Josef Bacik <jbacik@fb.com>
Date: Fri, 21 Jul 2017 14:48:13 +0000 (-0400)
Subject: nbd: allow multiple disconnects to be sent
X-Git-Tag: v4.14-rc1~376^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2e13456fb3d3e5f462dc1e59efc04eb62df35566;p=platform%2Fkernel%2Flinux-rpi3.git

nbd: allow multiple disconnects to be sent

There's no reason to limit ourselves to one disconnect message per
socket.  Sometimes networks do strange things, might as well let
sysadmins hit the panic button as much as they want.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 87a0a29..f91e7ac 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -991,9 +991,8 @@ static int nbd_disconnect(struct nbd_device *nbd)
 	struct nbd_config *config = nbd->config;
 
 	dev_info(disk_to_dev(nbd->disk), "NBD_DISCONNECT\n");
-	if (!test_and_set_bit(NBD_DISCONNECT_REQUESTED,
-			      &config->runtime_flags))
-		send_disconnects(nbd);
+	set_bit(NBD_DISCONNECT_REQUESTED, &config->runtime_flags);
+	send_disconnects(nbd);
 	return 0;
 }