From: Martin KaFai Lau <ka...@fb.com> Date: Mon, 20 Apr 2015 12:33:05 -0700
> On Mon, Apr 20, 2015 at 02:23:05PM -0400, David Miller wrote: >> From: Martin KaFai Lau <ka...@fb.com> >> Date: Fri, 10 Apr 2015 18:54:09 -0700 >> >> > Before patch 'Allow pmtu update on /128 via gateway route', >> > RTF_CACHE route was not created for DST_HOST. It also requires changes on >> > both >> > delete code path and rt6_select() code patch. >> > >> > This patch fixes the delete code path to avoid deleting the RTF_CACHE >> > route by 'ip -6 r del...' >> > >> > Signed-off-by: Martin KaFai Lau <ka...@fb.com> >> > Reviewed-by: Hannes Frederic Sowa <han...@stressinduktion.org> >> >> If a cached route was created in response to say a PMTU event, and >> it's a clone/copy/cow of the route we are being asked to delete, >> it absolutely should be removed. >> >> In fact this is a critically important aspect of removing routes >> from the table. > When a non-clone routes are removed, its clones are removed together by > fib6_prune_clones() in fib6_del(). > > Hence, 'ip -6 r del' will remove a route and its clones. > 'ip -6 r flush table cache will only remove RTF_CACHE routes. > > I will fix up the commit message. Ok, 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
