X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=mm%2Fhuge_memory.c;h=8e07342b52c0406982e3cdd2e747c4f18a9efe01;hb=c0e7cad;hp=8e791a3db6b6804987ae587feff95c79ac940480;hpb=c819f37e7e174d68cd013abf33725b4e07ced023;p=cascardo%2Flinux.git

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 8e791a3db6b6..8e07342b52c0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1262,6 +1262,9 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	bool migrated = false;
 	int flags = 0;
 
+	/* A PROT_NONE fault should not end up here */
+	BUG_ON(!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)));
+
 	ptl = pmd_lock(mm, pmdp);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
 		goto out_unlock;