On Thu, Sep 25, 2014 at 08:47:44PM +0100, Andrew Morton wrote:
> On Thu, 25 Sep 2014 12:30:00 -0700 Peter Feiner <pfeiner@xxxxxxxxxx> wrote:
>
> > On Thu, Sep 25, 2014 at 05:47:30PM +1000, Stephen Rothwell wrote:
> > > Hi Andrew,
> > >
> > > Today's linux-next merge of the akpm-current tree got a conflict in
> > > include/asm-generic/pgtable.h between commit b766eafe6828 ("PCI: Add
> > > pci_remap_iospace() to map bus I/O resources") from the pci tree and
> > > commit 4cc2f91f2636 ("mm: softdirty: enable write notifications on VMAs
> > > after VM_SOFTDIRTY cleared") from the akpm-current tree.
> > >
> > > I fixed it up (see below) and can carry the fix as necessary (no action
> > > is required).
> > >
> > > --
> > > Cheers,
> > > Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
> > >
> > > diff --cc include/asm-generic/pgtable.h
> > > index 977e545a64c3,f6acf1195182..000000000000
> > > --- a/include/asm-generic/pgtable.h
> > > +++ b/include/asm-generic/pgtable.h
> > > @@@ -249,10 -249,18 +249,22 @@@ static inline int pmd_same(pmd_t pmd_a
> > > #define pgprot_writecombine pgprot_noncached
> > > #endif
> > >
> > > +#ifndef pgprot_device
> > > +#define pgprot_device pgprot_noncached
> > > +#endif
> > > +
> > > + #ifndef pgprot_modify
> > > + #define pgprot_modify pgprot_modify
> > > + static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
> > > + {
> > > + if (pgprot_val(oldprot) == pgprot_val(pgprot_noncached(oldprot)))
> > > + newprot = pgprot_noncached(newprot);
> > > + if (pgprot_val(oldprot) == pgprot_val(pgprot_writecombine(oldprot)))
> > > + newprot = pgprot_writecombine(newprot);
> >
> > For completeness of the arch-independent pgprot-modify,
> >
> > if (pgprot_val(oldprot) == pgprot_val(pgprot_device(oldprot)))
> > newprot = pgprot_device(newprot);
> >
> > should be added here.
> >
Thanks for noticing this Peter!
>
> Tricky. I've moved
> mm-softdirty-enable-write-notifications-on-vmas-after-vm_softdirty-cleared.paqtch
> to be staged after linux-next, so I'll merge it after PCI has merged.
> And added this:
>
> --- a/include/asm-generic/pgtable.h~mm-softdirty-enable-write-notifications-on-vmas-after-vm_softdirty-cleared-fix
> +++ a/include/asm-generic/pgtable.h
> @@ -261,6 +261,8 @@ static inline pgprot_t pgprot_modify(pgp
> newprot = pgprot_noncached(newprot);
> if (pgprot_val(oldprot) == pgprot_val(pgprot_writecombine(oldprot)))
> newprot = pgprot_writecombine(newprot);
> + if (pgprot_val(oldprot) == pgprot_val(pgprot_device(oldprot)))
> + newprot = pgprot_device(newprot);
> return newprot;
> }
> #endif
> _
>
Thanks for the patch Andrew!
Best regards,
Liviu
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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