[PATCH] powerpc: Fix invalid page flags in create TLB CAM pathfor PTE_64BIT

[Chen, Tiejun]

> -----Original Message-----
> From: 
> linuxppc-dev-bounces+tiejun.chen=windriver.com at lists.ozlabs.or
> g 
> [mailto:linuxppc-dev-bounces+tiejun.chen=windriver.com at lists.o
> zlabs.org] On Behalf Of Benjamin Herrenschmidt
> Sent: Friday, September 24, 2010 5:59 AM
> To: Scott Wood
> Cc: Gortmaker, Paul; linuxppc-dev at lists.ozlabs.org
> Subject: Re: [PATCH] powerpc: Fix invalid page flags in 
> create TLB CAM pathfor PTE_64BIT
> 
> On Thu, 2010-09-23 at 15:33 -0500, Scott Wood wrote:
> > I don't see a generic accessor that can test PTE flags for 
> user access 
> > -- in the absence of one, I guess we need an ifdef here.  
> Or at least 
> > put in a comment so anyone who adds a userspace use knows 
> they need to 
> > fix it.
> 
> We could make up one in powerpc arch at least
> 
> #define pte_user(val) ((val & _PAGE_USER) == _PAGE_USER)
> 

Looks good. 

Ben and Scott,

But for the patched issue we're discussing we have to do #ifdef that as
my original modification. Right? Or do you have other suggestion? Then I
can improve that as v2.

Thanks
Tiejun 

> would do
> 
> Cheers,
> Ben.
> 
> 
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