From: Eric Dumazet <eric.duma...@gmail.com> Date: Sun, 02 Jun 2013 16:31:35 -0700
> On Thu, 2013-05-30 at 12:25 +0400, Roman Gushchin wrote: >> On 29.05.2013 23:06, Eric Dumazet wrote: >> > On Wed, 2013-05-29 at 14:09 +0400, Roman Gushchin wrote: >> > >> > True, these lookup functions are usually structured the same around the >> > hlist_nulls_for_each_entry_rcu() loop. >> > >> > A barrier() right before the loop seems to be a benefit, the size of >> > assembly code is reduced by 48 bytes. >> > >> > And its one of the documented way to handle this kind of problems >> > (Documentation/atomic_ops.txt line 114) >> > >> > I guess we should amend this documentation, eventually. >> > >> > Thanks, please add you "Signed-off-by" if you agree with the patch. >> > >> >> Signed-off-by: Roman Gushchin <kl...@yandex-team.ru> >> >> Many thanks to you, Paul E. McKenney and David Laight for your >> patches, help and participation in this discussion. > > Thanks to you ! > > David, is there any problem with the patch ? > > http://patchwork.ozlabs.org/patch/247360/ says "Not applicable", please > tell me what is needed to get it merged. It's not a networking patch, it's a patch for generic RCU upstream. So it either goes through Paul McKenney, or directly via Linus on linux-kernel. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/