[PATCH] Flush the D-cache during copy_user_highpage()

Russell King - ARM Linux linux at arm.linux.org.uk
Tue Nov 24 12:03:21 EST 2009


On Tue, Nov 24, 2009 at 05:00:39PM +0000, Catalin Marinas wrote:
> 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.

Don't we need to do this on ARMv7 as well?



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