Re: [PATCH] mm: Fix the TLB range flushed when __tlb_remove_page() runs out of slots

Greg KH
2013-07-30T00:16:16Z

On Mon, Jul 29, 2013 at 04:46:58PM -0700, Andrew Morton wrote:
> On Mon, 29 Jul 2013 16:41:06 -0700 (PDT) David Miller <davem@davemloft.net> wrote:
>
> > From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
> > Date: Wed, 29 May 2013 18:26:13 +0530
> >
> > > zap_pte_range loops from @addr to @end. In the middle, if it runs out of
> > > batching slots, TLB entries needs to be flushed for @start to @interim,
> > > NOT @interim to @end.
> > >
> > > Since ARC port doesn't use page free batching I can't test it myself but
> > > this seems like the right thing to do.
> > > Observed this when working on a fix for the issue at thread:
> > > http://www.spinics.net/lists/linux-arch/msg21736.html
> > >
> > > Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> >
> > As this bug can cause pretty serious memory corruption, I'd like to
> > see this submitted to -stable.
>
> Greg, e6c495a96ce02574e765d5140039a64c8d4e8c9e from mainline, please.

Now applied to 3.10-stable, thanks.

greg k-h