Messages in this thread | | | Date | Thu, 15 Nov 2018 11:36:04 -0800 (PST) | Subject | Re: [PATCH net] rxrpc: Fix life check | From | David Miller <> |
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From: David Howells <dhowells@redhat.com> Date: Mon, 12 Nov 2018 22:33:22 +0000
> The life-checking function, which is used by kAFS to make sure that a call > is still live in the event of a pending signal, only samples the received > packet serial number counter; it doesn't actually provoke a change in the > counter, rather relying on the server to happen to give us a packet in the > time window. > > Fix this by adding a function to force a ping to be transmitted. > > kAFS then keeps track of whether there's been a stall, and if so, uses the > new function to ping the server, resetting the timeout to allow the reply > to come back. > > If there's a stall, a ping and the call is *still* stalled in the same > place after another period, then the call will be aborted. > > Fixes: bc5e3a546d55 ("rxrpc: Use MSG_WAITALL to tell sendmsg() to temporarily ignore signals") > Fixes: f4d15fb6f99a ("rxrpc: Provide functions for allowing cleaner handling of signals") > Signed-off-by: David Howells <dhowells@redhat.com>
Applied, thank you.
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