rxrpc: Fix sendmsg(MSG_WAITALL) handling
Fix the handling of sendmsg() with MSG_WAITALL for userspace to round the
timeout for when a signal occurs up to at least two jiffies as a 1 jiffy
timeout may end up being effectively 0 if jiffies wraps at the wrong time.
Fixes: bc5e3a546d
("rxrpc: Use MSG_WAITALL to tell sendmsg() to temporarily ignore signals")
Signed-off-by: David Howells <dhowells@redhat.com>
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@ -71,8 +71,8 @@ static int rxrpc_wait_for_tx_window_waitall(struct rxrpc_sock *rx,
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rtt = READ_ONCE(call->peer->rtt);
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rtt2 = nsecs_to_jiffies64(rtt) * 2;
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if (rtt2 < 1)
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rtt2 = 1;
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if (rtt2 < 2)
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rtt2 = 2;
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timeout = rtt2;
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tx_start = READ_ONCE(call->tx_hard_ack);
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