Re: [PATCH v8 00/10] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory

From: Wen Jiang

Date: Thu Sep 17 2026 - 10:37:38 EST


On Thu, 17 Sept 2026 at 21:56, Christophe Leroy (CS GROUP)
<chleroy@xxxxxxxxxx> wrote:
>
>
>
> Le 17/09/2026 à 14:17, Christophe Leroy (CS GROUP) a écrit :
> > Hi,
> >

Hi Christophe,

Thanks for reviewing,

> > Le 17/09/2026 à 07:29, Wen Jiang a écrit :
> >> From: Wen Jiang <jiangwen6@xxxxxxxxxx>
> >>
> >> This patchset accelerates ioremap, vmalloc, and vmap when the memory is
> >> physically fully or partially contiguous. Two techniques are used:
> >>
> >> 1. Avoid page table rewalk when setting PTEs/PMDs for multiple memory
> >> segments
> >> 2. Use batched mappings wherever possible in both vmalloc and ARM64
> >> layers
> >>
> >> Besides accelerating the mapping path, this also enables large
> >> mappings (PMD and cont-PTE) for vmap, which are currently not
> >> supported.
> >
> > This series doesn't apply. I tried to apply it on top of v7.2, v7.3-rc3
> > and next-20260916
> >
> > Can you tell how to apply it ?
>
>
> Finaly I was able to apply it on top of v7.1
>

Yes. This series was based on v7.1. I'll rebase it onto the mainline
in the next version.
> Christophe