From: David Howells <dhowe...@redhat.com> Date: Mon, 04 Sep 2017 15:28:28 +0100
> When an RxRPC service packet comes in, the target connection is looked up > by an rb-tree search under RCU and a read-locked seqlock; the seqlock retry > check is, however, currently skipped if we got a match, but probably > shouldn't be in case the connection we found gets replaced whilst we're > doing a search. > > Make the lookup procedure always go through need_seqretry(), even if the > lookup was successful. This makes sure we always pick up on a write-lock > event. > > On the other hand, since we don't take a ref on the object, but rely on RCU > to prevent its destruction after dropping the seqlock, I'm not sure this is > necessary. > > Signed-off-by: David Howells <dhowe...@redhat.com> Applied, thanks David.
