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

Christophe Leroy (CS GROUP) chleroy at kernel.org
Thu Sep 17 06:55:55 PDT 2026



Le 17/09/2026 à 14:17, Christophe Leroy (CS GROUP) a écrit :
> Hi,
> 
> Le 17/09/2026 à 07:29, Wen Jiang a écrit :
>> From: Wen Jiang <jiangwen6 at xiaomi.com>
>>
>> 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

Christophe



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