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Date: Tue, 5 Mar 2002 15:48:38 +1100
From: Rusty Russell <rusty@rustcorp.com.au>
To: Hubertus Franke <frankeh@watson.ibm.com>
Cc: davidel@xmailserver.org, rml@tech9.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fast Userspace Mutexes III.
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On Mon, 4 Mar 2002 15:48:48 -0500
Hubertus Franke <frankeh@watson.ibm.com> wrote:

> Also, the check on PROT_SEM is missing. I tried this before and glibc filtered
> these flags out when set. But effectively, one still needs to check
> whether semaphores are allowed during the sys_futex call.

Neither arch I care about (ppc, x86) needs to do anything with PROT_SEM, so it's
OK.  glibc will have to be fixed on any architectures which require help here,
and a hook will be needed somewhere in the kernel for them.

I didn't implement it because I don't *know* which archs will need something,
and what they will need.  Hence my request for arch maintainers to step
forward (Linus said they exist, and I believe him).

Hope that clarifies this particular wart...
Rusty.
-- 
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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