Re: acl_permission_check: disgusting performance

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On Thu, May 12, 2011 at 8:52 PM, Eric W. Biederman
<ebiederm@xxxxxxxxxxxx> wrote:
>
> In any event an inline version of current_user_ns that returns
> init_user_ns in the case where user namespaces aren't compiled in should
> fix the immediate performance problems by allowing the compiler to
> optimize them out.

Yes. However, then Serge's patch in the next email immediately breaks
that optimization ;^(

                            Linus
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