From: Catalin Marinas <catalin.marinas@arm.com>
Date: Tue, 24 Nov 2009 17:54:07 +0000 (+0100)
Subject: ARM: 5794/1: Flush the D-cache during copy_user_highpage()
X-Git-Tag: v2.6.33-rc1~384^2~5^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=115b22474eb1905da2f606a057da3455833333d3;p=pandora-kernel.git

ARM: 5794/1: Flush the D-cache during copy_user_highpage()

The I and D caches for copy-on-write pages on processors with
write-allocate caches become incoherent causing problems on application
relying on CoW for text pages (dynamic linker relocating symbols in a
text page). This patch flushes the D-cache for such pages.

Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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