From: Nick Piggin <npiggin@suse.de>
Date: Mon, 16 Jul 2007 06:38:12 +0000 (-0700)
Subject: mm: debug check for the fault vs invalidate race
X-Git-Tag: v2.6.23-rc1~1027
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45426812d6b601430d560cb6049757b5b0bc71c4;p=pandora-kernel.git

mm: debug check for the fault vs invalidate race

Add a bugcheck for Andrea's pagefault vs invalidate race.  This is triggerable
for both linear and nonlinear pages with a userspace test harness (using
direct IO and truncate, respectively).

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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