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nvme-tcp: Initialize sk->sk_ll_usec only with NET_RX_BUSY_POLL

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The access to sk->sk_ll_usec should be hidden behind
CONFIG_NET_RX_BUSY_POLL like the definition of sk_ll_usec.

Put access to ->sk_ll_usec behind CONFIG_NET_RX_BUSY_POLL.

Fixes: 1a9460cef5 ("nvme-tcp: support simple polling")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Sebastian Andrzej Siewior 2019-10-10 17:34:12 +02:00 committed by Keith Busch
parent c1ac9a4b07
commit ac1c4e1885
1 changed files with 2 additions and 0 deletions
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2
drivers/nvme/host/tcp.c
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@ -1386,7 +1386,9 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
queue->sock->sk->sk_data_ready = nvme_tcp_data_ready;
queue->sock->sk->sk_state_change = nvme_tcp_state_change;
queue->sock->sk->sk_write_space = nvme_tcp_write_space;
#ifdef CONFIG_NET_RX_BUSY_POLL
queue->sock->sk->sk_ll_usec = 1;
#endif
write_unlock_bh(&queue->sock->sk->sk_callback_lock);
return 0;