[ovs-dev] [PATCH v2] netdev-linux: Avoid RTM_GETQDISC bug workaround on new-enough kernels.

Ben Pfaff blp at nicira.com
Wed Mar 18 15:30:35 UTC 2015


On Fri, Mar 13, 2015 at 02:46:23PM -0700, Ben Pfaff wrote:
> Otherwise we can't detect classless qdiscs.
> 
> This has no useful effect for the currently supported qdiscs, which all
> have classes, but it makes it possible to add support for new classless
> qdiscs.
> 
> This suddenly makes netdev-linux complain about qdiscs it doesn't know
> about (e.g. pfifo_fast), which isn't too useful, so this commit also
> demotes that INFO message to DBG level.
> 
> Reported-by: Jonathan Vestin <jonavest at kau.se>
> Signed-off-by: Ben Pfaff <blp at nicira.com>
> ---
> v1->v2: Do some more testing and figure out what's going on for sfq
>   and pfifo_fast, then update treatment of tcm_parent and the "no reply"
>   kernel case.

This was reported as successful in another thread:
        http://openvswitch.org/pipermail/dev/2015-March/052586.html
so I applied it to master.



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