On Fri, Jan 26, 2024 at 3:00 PM David Laight <David.Laight@xxxxxxxxxx> wrote:
>
> From: oficerovas@xxxxxxxxxxxx
> > Sent: 26 January 2024 09:55
> >
> > commit a8749a35c399 ("mm: vmalloc: introduce array allocation functions")
> >
> > Linux has dozens of occurrences of vmalloc(array_size()) and
> > vzalloc(array_size()). Allow to simplify the code by providing
> > vmalloc_array and vcalloc, as well as the underscored variants that let
> > the caller specify the GFP flags.
> >
> > Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> > Signed-off-by: Alexander Ofitserov <oficerovas@xxxxxxxxxxxx>
> > ---
> > include/linux/vmalloc.h | 5 +++++
> > mm/util.c | 50 +++++++++++++++++++++++++++++++++++++++++
> > 2 files changed, 55 insertions(+)
> >
> > diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
> > index 76dad53a410ac..0fd47f2f39eb0 100644
> > --- a/include/linux/vmalloc.h
> > +++ b/include/linux/vmalloc.h
> > @@ -112,6 +112,11 @@ extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
> > void *__vmalloc_node(unsigned long size, unsigned long align, gfp_t gfp_mask,
> > int node, const void *caller);
> >
> > +extern void *__vmalloc_array(size_t n, size_t size, gfp_t flags);
> > +extern void *vmalloc_array(size_t n, size_t size);
> > +extern void *__vcalloc(size_t n, size_t size, gfp_t flags);
> > +extern void *vcalloc(size_t n, size_t size);
>
> Symbols starting __ should really be ones that are part of the implementation
> and not publicly visible.
This is a patch that already exists in master.
Paolo
