On Thu, Jan 05, 2017 at 01:23:58PM +0100, Florian Westphal wrote: > Once flow cache gets removed the mtu initialisation happens for every skb > that gets an xfrm attached, so this lock starts to show up in perf. > > It is not obvious why this lock is required -- the caller holds > reference on the state struct, type->destructor is only called from the > state gc worker (all state structs on gc list must have refcount 0). > > xfrm_init_state already has been called (else private data accessed > by type->get_mtu() would not be set up). > > So just remove the lock -- the race on the state (DEAD?) doesn't > matter (could change right after dropping the lock too). > > Signed-off-by: Florian Westphal <f...@strlen.de>
Applied to ipsec-next, thanks Florian!
