linux-kernel - Re: [PATCH] FRV: Wire up new syscalls

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Message-ID: <19019.22629.720187.794661@cargo.ozlabs.ibm.com>
Date:	Wed, 1 Jul 2009 22:36:53 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	David Howells <dhowells@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Arnd Bergmann <arnd@...db.de>,
	torvalds@...l.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] FRV: Wire up new syscalls

David Howells writes:

> It requires atomic64_t.  Is that mandatory on all arches now?

I did a generic implementation using irq disable on UP and hashed
spin-locks on SMP.  See 09d4e0ed for the implementation and c2e95c6d
for an example of how to wire it up.

Paul.
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