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

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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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Catalin Marinas 2009-11-24 18:54:07 +01:00 • committed by Russell King

parent f91fb05d82

commit 115b22474e

1 changed files with 8 additions and 0 deletions

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arch/arm/mm/copypage-v6.c

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