Re: [PATCH 2.6.18-rc1] Make group sorting optional in the 2.6.x kernels

From: Frank van Maarseveen
Date: Thu Jul 20 2006 - 18:20:10 EST

On Fri, Jul 21, 2006 at 08:40:44AM +1200, Bill Ryder wrote:
> This phrase is worrying:
> When there is no group id information passed downwards
> then it reverts to old behavior too.
> Why would no group id information be passed?

There are a few NFS operations (or related ones such as
for file locking) which do not need that information IIRC.
"old behavior" means doing what it does _today_.

> For someone of my level of knowledge of the kernel the README does not
> convince me it will work in all situations.

NFS with AUTH_UNIX authentication cannot possibly get worse than it is
today with respect to processes in more than 16 groups. And the patch
is effectively disabled for processes in <=16 groups so I wouldn't

Anyway, a revised patch from you which no longer sorts the first 16
groups for compatibility reasons is probably easier to get merged.

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