The VMA address bound checks are applicable to all memory policy modes,
not just MPOL_INTERLEAVE. Hence move it to the front and make it common.
Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 618ab12..7ec6694 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2173,6 +2173,8 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
int ret = -1;
BUG_ON(!vma);
+ BUG_ON(addr >= vma->vm_end);
+ BUG_ON(addr < vma->vm_start);
pol = get_vma_policy(vma, addr);
if (!(pol->flags & MPOL_F_MOF))
@@ -2180,9 +2182,6 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
switch (pol->mode) {
case MPOL_INTERLEAVE:
- BUG_ON(addr >= vma->vm_end);
- BUG_ON(addr < vma->vm_start);
-
pgoff = vma->vm_pgoff;
pgoff += (addr - vma->vm_start) >> PAGE_SHIFT;
polnid = offset_il_node(pol, vma, pgoff);
--
1.8.5.2
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