Re: [PATCH] no RLIMIT_NPROC for root, please

From: Tigran Aivazian (tigran@veritas.com)
Date: Thu Nov 30 2000 - 16:57:22 EST


> > > Hardcoding things signifying special treatment of uid=0 is almost always a
> > > bad idea. If you _really_ think that superuser (whatever entity that might
> > > be) should be exempt from RLIMIT_NPROC and can prove that (SuSv2 seems to
> > > be silent so you may be right), then you should use capable() to do proper
> > > capability test and not that horrible explicit uid test as in your patch
> > > above.

I totally agree with you, Pavel. But while we are on this subject --
shouldn't the explicit check like this:

        /*
         * Use a reserved one if we're the superuser
         */
        if (files_stat.nr_free_files && !current->euid)
                goto used_one;
 
in fs/file_table.c:get_empty_filp() be switched to capabilities? I.e. is
the hardcoded euid=0 value intentional there or is it an omission?

Regards,
Tigran

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