[PATCH 2/4] char: xillybus: replace __get_free_pages() with kmalloc()

[Mike Rapoport]

On Tue, Sep 01, 2026 at 10:42:47AM +0200, Eli Billauer wrote:
> On 31/08/2026 13:32, Mike Rapoport wrote:
> > For large sizes kmalloc falls back to page allocator anyway.
> > 
> > And the doc is out of date unfortunately.
> 
> I think it would be a good idea to update the doc first, and by doing so
> officially change the API. After getting this change approved, it's indeed
> safe to rely on kmalloc() even for larger memory allocations.

The documentation always lags behind the code and "official" API is what
include/linux/slab.h says :)

When I wrote that document, SLAB and SLOB were still around and had
different properties than SLUB for larger allocations.

Still, the documentation update is on it's way upstream:
https://lore.kernel.org/linux-mm/20260831-docs-memalloc-guide-v1-0-547718c274c1@kernel.org/
 
> Regards,
>    Eli

-- 
Sincerely yours,
Mike.