Re: [RFC V1 PATCH mm-hotfixes 2/3] x86/mm: define p*d_populate_kernel() and top-level page table sync

Andrew Morton
2025-07-09T21:14:05Z

On Wed, 9 Jul 2025 22:16:56 +0900 Harry Yoo <harry.yoo@oracle.com> wrote:

> Fixes: 4917f55b4ef9 ("mm/sparse-vmemmap: improve memory savings for compound devmaps")
> Fixes: faf1c0008a33 ("x86/vmemmap: optimize for consecutive sections in partial populated PMDs")

Fortunately both of these appeared in 6.9-rc7, which minimizes the
problem with having more than one Fixes:.

But still, the Fixes: is a pointer telling -stable maintainers where in
the kernel history we want them to insert the patch(es). Giving them
multiple insertions points is confusing! Can we narrow this down
to a single Fixes:?