From: Josef Bacik <jbacik@fb.com>
Date: Mon, 6 Nov 2017 21:11:57 +0000 (-0500)
Subject: nbd: wait uninterruptible for the dead timeout
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f6b7c54c2d0ee8fe4d3b1cdfdb1961a80be60d3f;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

nbd: wait uninterruptible for the dead timeout

commit ff57dc94faec023abc267cdc45766fccff497557 upstream.

If we have a pending signal or the user kills their application then
it'll bring down the whole device, which is less than awesome.  Instead
wait uninterruptible for the dead timeout so we're sure we gave it our
best shot.

Fixes: 560bc4b39952 ("nbd: handle dead connections")
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 9adfb5445f8d..fdef8efcdabc 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -723,9 +723,9 @@ static int wait_for_reconnect(struct nbd_device *nbd)
 		return 0;
 	if (test_bit(NBD_DISCONNECTED, &config->runtime_flags))
 		return 0;
-	wait_event_interruptible_timeout(config->conn_wait,
-					 atomic_read(&config->live_connections),
-					 config->dead_conn_timeout);
+	wait_event_timeout(config->conn_wait,
+			   atomic_read(&config->live_connections),
+			   config->dead_conn_timeout);
 	return atomic_read(&config->live_connections);
 }