David Howells 210f035316 rxrpc: Allow listen(sock, 0) to be used to disable listening ...

Allow listen() with a backlog of 0 to be used to disable listening on an
AF_RXRPC socket.  This also releases any preallocation, thereby making it
easier for a kernel service to account for all allocated call structures
when shutting down the service.

The socket cannot thereafter have listening reenabled, but must rather be
closed and reopened.

Signed-off-by: David Howells <dhowells@redhat.com>

2017-01-09 11:10:02 +00:00

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