Re: [PATCH v6 07/16] mm/execmem, arch: convert simple overrides of module_alloc to execmem

[Song Liu]

On Fri, Apr 26, 2024 at 1:30 AM Mike Rapoport <rppt@xxxxxxxxxx> wrote:
>
> From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
>
> Several architectures override module_alloc() only to define address
> range for code allocations different than VMALLOC address space.
>
> Provide a generic implementation in execmem that uses the parameters for
> address space ranges, required alignment and page protections provided
> by architectures.
>
> The architectures must fill execmem_info structure and implement
> execmem_arch_setup() that returns a pointer to that structure. This way the
> execmem initialization won't be called from every architecture, but rather
> from a central place, namely a core_initcall() in execmem.
>
> The execmem provides execmem_alloc() API that wraps __vmalloc_node_range()
> with the parameters defined by the architectures.  If an architecture does
> not implement execmem_arch_setup(), execmem_alloc() will fall back to
> module_alloc().
>
> Signed-off-by: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>

Acked-by: Song Liu <song@xxxxxxxxxx>