On Mon, Jan 16, 2017 at 11:28:40AM +0200, Leon Romanovsky wrote:
> On Mon, Jan 16, 2017 at 10:16:43AM +0100, Borislav Petkov wrote:
> > From: Borislav Petkov <b...@suse.de>
> >
> > We wanna know who's doing such a thing. Like slab.c does that.
> >
> > Signed-off-by: Borislav Petkov <b...@suse.de>
> > ---
> > mm/slub.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/mm/slub.c b/mm/slub.c
> > index 067598a00849..1b0fa7625d6d 100644
> > --- a/mm/slub.c
> > +++ b/mm/slub.c
> > @@ -1623,6 +1623,7 @@ static struct page *new_slab(struct kmem_cache *s,
> > gfp_t flags, int node)
> > flags &= ~GFP_SLAB_BUG_MASK;
> > pr_warn("Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x
> > (%pGg). Fix your code!\n",
> > invalid_mask, &invalid_mask, flags, &flags);
> > + dump_stack();
>
> Will it make sense to change these two lines above to WARN(true, .....)?
Should be equivalent.
I'd even go a step further and make this a small inline function,
something like warn_unexpected_gfp(flags) or so and call it from both
from slab.c and slub.c.
Depending on what mm folks prefer, that is.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
