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

[Russell King - ARM Linux]

On Tue, Nov 24, 2009 at 05:35:03PM +0000, Catalin Marinas wrote:
> On Tue, 2009-11-24 at 17:26 +0000, Russell King - ARM Linux wrote:
> > On Tue, Nov 24, 2009 at 05:06:15PM +0000, Catalin Marinas wrote:
> > > On Tue, 2009-11-24 at 17:03 +0000, Russell King - ARM Linux wrote:
> > > > 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?
> > > 
> > > Do you mean an improvement to the patch description?
> > 
> > Don't worry, I'm being silly - there isn't an ARMv7 version of the
> > copy page functions.  Your patch is fine.
> 
> So, do you want a pull request, send it to the patch system or you just
> pick it up from the list?

Patch system please.