tree 2e8a73099c2adf217251136bad50a8ec4bac840b
parent 56ff9c837778ba2cf76f29c966856a9341e5939d
author David Howells <dhowells@redhat.com> 1483612716 +0000
committer David Howells <dhowells@redhat.com> 1483960202 +0000

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>