[PATCH] mm/slub: Add a dump_stack() to the unexpected GFP check

[Borislav Petkov]

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();
        }
 
        return allocate_slab(s,
-- 
2.11.0