From: Sagi Grimberg sagi@grimberg.me
[ Upstream commit 8b73b45d54a14588f86792869bfb23098ea254cb ]
The TCP stack can run from process context for a long time so we should disable BH here.
Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver") Signed-off-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/tcp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index c6958e5bc91d..709a573183a2 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -874,7 +874,7 @@ static void nvme_tcp_state_change(struct sock *sk) { struct nvme_tcp_queue *queue;
- read_lock(&sk->sk_callback_lock); + read_lock_bh(&sk->sk_callback_lock); queue = sk->sk_user_data; if (!queue) goto done; @@ -895,7 +895,7 @@ static void nvme_tcp_state_change(struct sock *sk)
queue->state_change(sk); done: - read_unlock(&sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); }
static inline bool nvme_tcp_queue_more(struct nvme_tcp_queue *queue)