From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Piggin Date: Tue, 04 Apr 2006 01:05:43 +0000 Subject: Re: Fix ia64 bit ops: Full barriers for bit operations returning Message-Id: <4431C667.7090301@yahoo.com.au> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Chen, Kenneth W wrote: >Christoph Lameter wrote on Monday, April 03, 2006 11:33 AM > >> >>Note that this only fixes up the bit operations if used together with the >>earlier fix for the clear_bit barriers. We still need a fix for general >>atomic operations. >> >>Signed-off-by: Christoph Lameter >> > > >Looks good to me. >Acked-by: Ken Chen > I don't think my concern about this approach was ever answered: an acquire + release combination will always allow memory operations to move past the atomic operation, won't it? I would have thought you'd need release + acquire. -- Send instant messages to your online friends http://au.messenger.yahoo.com