Re: [ 150/184] ipv4: check rt_genid in dst_check
From: Willy Tarreau
Date: Fri Jun 07 2013 - 11:01:13 EST
On Fri, Jun 07, 2013 at 10:58:06AM -0400, Benjamin LaHaise wrote:
> On Fri, Jun 07, 2013 at 07:07:33AM +0100, Ben Hutchings wrote:
> > > This commit is based on the above, with the addition of verifying blackhole
> > > routes in the same manner.
> > That addition doesn't seem to correspond to anything in mainline. Why
> > should 2.6.32 differ?
> Fixing the issue with blackhole routes as it was accomplished in mainline
> would require pulling in a lot more code, and people were not interested
> in pulling in all of the dependencies given the much higher risk of trying
> to select the right subset of changes to include. The addition of the
> single line of "dst->obsolete = -1;" in ipv4_dst_blackhole() was much
> easier to verify, and is in the spirit of the patch in question. This is
> the minimal set of changes to fix the bug in question.
Thank you Ben, I'll add this description to the existing commit message.
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