Re: [PATCH v2 01/22] x86/mm: split out preallocate_sub_pgd()

[Borislav Petkov <bp@alien8.de>]

On Fri, Mar 20, 2026 at 06:23:25PM +0000, Brendan Jackman wrote:
> This code will be needed elsewhere in a following patch. Split out the
> trivial code move for easy review.
> 
> This changes the logging slightly: instead of panic() directly reporting
> the level of the failure, there is now a generic panic message which
> will be preceded by a separate warn that reports the level of the
> failure. This is a simple way to have this helper suit the needs of its
> new user as well as the existing one.

"Describe your changes in imperative mood, e.g. “make xyzzy do frotz” instead
of “[This patch] makes xyzzy do frotz” or “[I] changed xyzzy to do frotz”, as
if you are giving orders to the codebase to change its behaviour."

> Other than logging, no functional change intended.
> 
> Signed-off-by: Brendan Jackman <jackmanb@google.com>
> ---
>  arch/x86/include/asm/pgalloc.h | 33 +++++++++++++++++++++++++++++++
>  arch/x86/mm/init_64.c          | 44 +++++++-----------------------------------
>  2 files changed, 40 insertions(+), 37 deletions(-)
> 
> diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
> index c88691b15f3c6..3541b86c9c6b0 100644
> --- a/arch/x86/include/asm/pgalloc.h
> +++ b/arch/x86/include/asm/pgalloc.h

Why in a header?

That function is kinda bigger than the rest of the oneliners there...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette