From: Sowmini Varadhan <sowmini.varad...@oracle.com> Date: Fri, 11 Sep 2015 16:48:48 -0400
> > Many commonly used functions like getifaddrs() invoke RTM_GETLINK > to dump the interface information, and do not need the > the AF_INET6 statististics that are always returned by default > from rtnl_fill_ifinfo(). > > Computing the statistics can be an expensive operation that impacts > scaling, so it is desirable to avoid this if the information is > not needed. > > This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that > can be passed with netlink_request() to avoid statistics computation > for the ifinfo path. > > Signed-off-by: Sowmini Varadhan <sowmini.varad...@oracle.com> > --- > v2: David Miller comments: pass u32 ext_filter_mask down. > v3: non-RFC version of v2. Applied, with one minor change: > + if (!!(ext_filter_mask & RTEXT_FILTER_SKIP_STATS)) I got rid of the "!!" as it really isn't needed for an expression like this. Thanks! -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
