Forwarded: [PATCH] nbd: move sk_set_memalloc out of tx_lock critical section

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Subject: [PATCH] nbd: move sk_set_memalloc out of tx_lock critical section
Author: timo.joannin@gmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
---
 drivers/block/nbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index ffce519bf008..5112e3a03027 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1369,12 +1369,12 @@ static int nbd_genl_reconnect_sock_cb(struct nbd_device *nbd, unsigned long arg)
 		if (!nsock->dead)
 			continue;
 
+		sk_set_memalloc(sock->sk);
 		mutex_lock(&nsock->tx_lock);
 		if (!nsock->dead) {
 			mutex_unlock(&nsock->tx_lock);
 			continue;
 		}
-		sk_set_memalloc(sock->sk);
 		if (nbd->tag_set.timeout)
 			sock->sk->sk_sndtimeo = nbd->tag_set.timeout;
 		atomic_inc(&config->recv_threads);
-- 
2.56.0