lkml.org 
[lkml]   [2013]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[ 44/61] ipv4: Dont update the pmtu on mtu locked routes
    Date
    3.7-stable review patch.  If anyone has any objections, please let me know.

    ------------------


    From: Steffen Klassert <steffen.klassert@secunet.com>

    [ Upstream commit fa1e492aa3cbafba9f8fc6d05e5b08a3091daf4a ]

    Routes with locked mtu should not use learned pmtu informations,
    so do not update the pmtu on these routes.

    Reported-by: Julian Anastasov <ja@ssi.bg>
    Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    net/ipv4/route.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/net/ipv4/route.c
    +++ b/net/ipv4/route.c
    @@ -912,6 +912,9 @@ static void __ip_rt_update_pmtu(struct r
    struct dst_entry *dst = &rt->dst;
    struct fib_result res;

    + if (dst_metric_locked(dst, RTAX_MTU))
    + return;
    +
    if (dst->dev->mtu < mtu)
    return;




    \
     
     \ /
      Last update: 2013-02-12 22:22    [W:4.095 / U:0.484 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site