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Message-ID: <1410149905.11872.73.camel@edumazet-glaptop2.roam.corp.google.com> Date: Sun, 07 Sep 2014 21:18:25 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: David Miller <davem@...emloft.net> Cc: nicolas.dichtel@...nd.com, therbert@...gle.com, alexander.h.duyck@...el.com, netdev@...r.kernel.org Subject: Re: [PATCH net] ipv6: refresh rt6i_genid in ip6_pol_route() On Sun, 2014-09-07 at 15:54 -0700, David Miller wrote: > This might be broken. > > We are dealing here with persistent entries in the ipv6 routine trie. > > If you just bump the genid on the next person to look it up, other > sockets and cached entities might not have validated the route yet, > and now will falsely see the route as valid. We have to ensure that > they too drop this route and perform a relookup. I am confused, I thought it was the role of the cookie. (Ie socket has to store its own cookie to be able to validate a route) Before 6f3118b571b8 patch, how was this done anyway ? If persistent routes cannot refresh the genid, then they are useless ? -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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