[PATCH] Documentation: document /proc api for arm64 MTE vm flags

[Jonathan Corbet]

On Fri, 20 Nov 2020 14:44:09 +0000
Catalin Marinas <catalin.marinas at arm.com> wrote:

> On Fri, Nov 06, 2020 at 10:19:40AM +0000, Szabolcs Nagy wrote:
> > Document that /proc/PID/smaps shows PROT_MTE settings in VmFlags.
> > Support for this was introduced in
> > 
> >   commit 9f3419315f3cdc41a7318e4d50ba18a592b30c8c
> >   arm64: mte: Add PROT_MTE support to mmap() and mprotect()
> > 
> > Signed-off-by: Szabolcs Nagy <szabolcs.nagy at arm.com>
> > Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>
> > Cc: linux-doc at vger.kernel.org
> > ---
> >  Documentation/filesystems/proc.rst | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
> > index 533c79e8d2cd..e5fa972d4c76 100644
> > --- a/Documentation/filesystems/proc.rst
> > +++ b/Documentation/filesystems/proc.rst
> > @@ -546,6 +546,7 @@ encoded manner. The codes are the following:
> >      nh    no huge page advise flag
> >      mg    mergable advise flag
> >      bt    arm64 BTI guarded page
> > +    mt    arm64 MTE allocation tags are enabled
> >      ==    =======================================
> >  
> >  Note that there is no guarantee that every flag and associated mnemonic will  
> 
> Are you ok with picking up this patch (it can be left for 5.11) or
> should I queue it in the arm64 tree?

It wasn't sent to me, so it wasn't on my radar.  Up to you, I'm happy to
grab it if you'd prefer.

Thanks,

jon