Re: [PATCH 17/30] mm: prefer vma_[start,end]_pgoff() to vma->vm_pgoff in kernel/

Gregory Price <[email protected]> Fri, 10 Jul 2026 11:09:02 -0400

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Message-ID	<alELDgm258nhjk3b@gourry-fedora-PF4VCD3F>

On Fri, Jul 10, 2026 at 03:56:33PM +0100, Lorenzo Stoakes wrote:
> On Thu, Jul 09, 2026 at 11:49:18AM -0400, Gregory Price wrote:
> >
> > Silly question:
> 
> There's no such thing :)
>

All my questions are silly.  That's my secret :]

> >
> >    What's the purpose of retaining tags in a non-address value?
> 
> Well if you want to reconstitute an address from it later then that'd be the
> intent, but I'm being hand wavey here for sure.
> 
> Main thing is to retain stuff under the page mask
> 

Right, which ... 

vvvvvv
> > That sounds like there's fragility just waiting to be broken.

If that's an actual issue, then our relationship with tags is painful :[

~Gregory