From: Nick Piggin <npiggin@suse.de>
Date: Thu, 19 Jul 2007 08:47:22 +0000 (-0700)
Subject: mm: fix clear_page_dirty_for_io vs fault race
X-Git-Tag: v2.6.23-rc1~469
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79352894b28550ee0eee919149f57626ec1b3572;p=pandora-kernel.git

mm: fix clear_page_dirty_for_io vs fault race

Fix msync data loss and (less importantly) dirty page accounting
inaccuracies due to the race remaining in clear_page_dirty_for_io().

The deleted comment explains what the race was, and the added comments
explain how it is fixed.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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