On Fri, Mar 04, 2022 at 07:29:21PM +0100, Vlastimil Babka wrote:
> On 3/4/22 07:34, Hyeonggon Yoo wrote:
> > __ksize() is only called by KASAN. Remove export symbol and move
> > definition to mm/slab.h as we don't want to grow its callers.
> >
> > [ willy@xxxxxxxxxxxxx: Move definition to mm/slab.h and reduce comments ]
> >
> > Signed-off-by: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
>
> Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
>
Thanks!
> > --- a/mm/slab.h
> > +++ b/mm/slab.h
> > @@ -685,6 +685,8 @@ static inline void free_large_kmalloc(struct folio *folio, void *object)
> > }
> > #endif /* CONFIG_SLOB */
> >
> > +size_t __ksize(const void *objp);
> > +
> > static inline size_t slab_ksize(const struct kmem_cache *s)
> > {
> > #ifndef CONFIG_SLUB
> > diff --git a/mm/slab_common.c b/mm/slab_common.c
> > index 1d2f92e871d2..b126fc7247b9 100644
> > --- a/mm/slab_common.c
> > +++ b/mm/slab_common.c
> > @@ -1247,13 +1247,7 @@ EXPORT_SYMBOL(kfree_sensitive);
> >
> > #ifndef CONFIG_SLOB
> > /**
>
> Maybe just /* so it's not even parsed as a kernel-doc anymore?
>
Oh yes, that would be better.
> > - * __ksize -- Uninstrumented ksize.
> > - * @objp: pointer to the object
> > - *
> > - * Unlike ksize(), __ksize() is uninstrumented, and does not provide the same
> > - * safety checks as ksize() with KASAN instrumentation enabled.
> > - *
> > - * Return: size of the actual memory used by @objp in bytes
> > + * __ksize -- Uninstrumented ksize. Only called by KASAN.
> > */
> > size_t __ksize(const void *object)
> > {
> > @@ -1269,7 +1263,6 @@ size_t __ksize(const void *object)
> >
> > return slab_ksize(folio_slab(folio)->slab_cache);
> > }
> > -EXPORT_SYMBOL(__ksize);
> > #endif
> >
--
Thank you, You are awesome!
Hyeonggon :-)
