linux-kernel - [patch 0/3] 2.6.20 fix for PageUptodate memorder problem (try 3)

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Message-Id: <20070210001844.21921.48605.sendpatchset@linux.site>
Date:	Sat, 10 Feb 2007 03:31:22 +0100 (CET)
From:	Nick Piggin <npiggin@...e.de>
To:	Andrew Morton <akpm@...l.org>
Cc:	Hugh Dickins <hugh@...itas.com>, Nick Piggin <npiggin@...e.de>,
	Linux Memory Management <linux-mm@...ck.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: [patch 0/3] 2.6.20 fix for PageUptodate memorder problem (try 3)

OK, I have got rid of SetPageUptodate_nowarn, and removed the atomic op
from SetNewPageUptodate. Made PageUptodate_NoLock only issue the memory
barrier is the page was uptodate (hopefully the compiler can thread the
branch into the caller's branch).

SetNewPageUptodate does not do the S390 page_test_and_clear_dirty, so
I'd like to make sure that's OK.

Rearranged the patch series so we don't have the first patch introducing
a lot of WARN_ONs that are solved in the next two patches (rather, solve
those issues first).

Thanks,
Nick

--
SuSE Labs

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