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Subject: Re: [patch 0/3] 2.6.20 fix for PageUptodate memorder problem (try
	2)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>, Andrew Morton <akpm@osdl.org>,
       Linux Memory Management <linux-mm@kvack.org>,
       Linux Kernel <linux-kernel@vger.kernel.org>
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Date: Fri, 09 Feb 2007 12:44:09 +1100
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> > Fix threaded user page write memory ordering
> 
> Thanks, I did see that, but I'm sure it must have been prompted by a
> discussion or another proposed patch from IBM. Maybe I'm wrong
> though.

Yes, my initial proposal iirc was to smp_wmb() in set_pte() but after a
discussion with Linus, we ended with open coding them.

Ben.



From mboxrd@z Thu Jan  1 00:00:00 1970
Subject: Re: [patch 0/3] 2.6.20 fix for PageUptodate memorder problem (try
	2)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
In-Reply-To: <20070209013115.GA17334@wotan.suse.de>
References: <20070208111421.30513.77904.sendpatchset@linux.site>
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To: Nick Piggin <npiggin@suse.de>
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> > Fix threaded user page write memory ordering
> 
> Thanks, I did see that, but I'm sure it must have been prompted by a
> discussion or another proposed patch from IBM. Maybe I'm wrong
> though.

Yes, my initial proposal iirc was to smp_wmb() in set_pte() but after a
discussion with Linus, we ended with open coding them.

Ben.


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