On Fri, 2014-11-21 at 16:57 -0500, Pranith Kumar wrote: > Hi Eric, > > Thanks for looking at this patch. > > I've been scratching my head since morning trying to find out what was > so obviously wrong with this patch. Alas, I don't see what you do. > > Could you point it out and show me how incompetent I am, please? > > Thanks! Well, even it the code is _not_ broken, I don't see any value with this patch. If I use git blame on current code, line containing smp_read_barrier_depends() exactly points to the relevant commit [1] After your change, it will point to some cleanup, which makes little sense to me, considering you did not change the smp_wmb() in xt_replace_table(). I, as a netfilter contributor would like to keep current code as is, because it is how I feel safe with it. We have a proliferation of interfaces, but this does not help to understand the issues and code maintenance. smp_read_barrier_depends() better documents the read barrier than lockless_dereference(). The point of having a lock or not is irrelevant here. [1] http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=b416c144f46af1a30ddfa4e4319a8f077381ad63 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
