Re: [PATCH v3 1/2] lib: introduce simple error-checking wrapper for memparse()

Andrew Morton
2026-01-08T17:42:44Z

On Thu, 8 Jan 2026 09:06:49 -0800 Kees Cook <kees@kernel.org> wrote:

> On Thu, Jan 08, 2026 at 07:52:15PM +0300, Dmitry Antipov wrote:
> > Introduce 'memvalue()' which uses 'memparse()' to parse a string
> > with optional memory suffix into a non-negative number. If parsing
> > has succeeded, returns 0 and stores the result at the location
> > specified by the second argument. Otherwise returns -EINVAL and
> > leaves the location untouched.
> >
> > Suggested-by: Christoph Hellwig <hch@infradead.org>
> > Suggested-by: Kees Cook <kees@kernel.org>
> > Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
>
> LGTM, thanks!
>
> Reviewed-by: Kees Cook <kees@kernel.org>

Thanks, I'll add both these to mm.git's mm-nonmm-unstable branch for
testing.

If XFS people would prefer to take [2/2] via the xfs tree then please
lmk and I'll send it over when [1/2] is upstreamed. Or we can take
both patches via the xfs tree. Or something. Sending out an acked-by:
would be simplest!