Re: [PATCH 2/5] mm/hugetlb: Remove prepare_hugepage_range()

[Jason Gunthorpe <jgg@nvidia.com>]

On Fri, Jun 13, 2025 at 09:41:08AM -0400, Peter Xu wrote:
> Only mips and loongarch implemented this API, however what it does was
> checking against stack overflow for either len or addr.  That's already
> done in arch's arch_get_unmapped_area*() functions, hence not needed.
> 
> It means the whole API is pretty much obsolete at least now, remove it
> completely.
> 
> Cc: Huacai Chen <chenhuacai@kernel.org>
> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> Cc: Muchun Song <muchun.song@linux.dev>
> Cc: Oscar Salvador <osalvador@suse.de>
> Cc: loongarch@lists.linux.dev
> Cc: linux-mips@vger.kernel.org
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
>  arch/loongarch/include/asm/hugetlb.h | 14 --------------
>  arch/mips/include/asm/hugetlb.h      | 14 --------------
>  fs/hugetlbfs/inode.c                 |  8 ++------
>  include/asm-generic/hugetlb.h        |  8 --------
>  include/linux/hugetlb.h              |  6 ------
>  5 files changed, 2 insertions(+), 48 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason