From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
mm/mremap.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index f48ccfcf3217..b364d08673b4 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -705,7 +705,7 @@ static unsigned long move_vma(struct vm_area_struct *vma,
if (excess) {
vma->vm_flags |= VM_ACCOUNT;
if (split)
- vma->vm_next->vm_flags |= VM_ACCOUNT;
+ vma_next(mm, vma)->vm_flags |= VM_ACCOUNT;
}
return new_addr;
@@ -864,9 +864,11 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
static int vma_expandable(struct vm_area_struct *vma, unsigned long delta)
{
unsigned long end = vma->vm_end + delta;
+ struct vm_area_struct *next;
if (end < vma->vm_end) /* overflow */
return 0;
- if (vma->vm_next && vma->vm_next->vm_start < end) /* intersection */
+ next = vma_next(vma->vm_mm, vma);
+ if (next && next->vm_start < end) /* intersection */
return 0;
if (get_unmapped_area(NULL, vma->vm_start, end - vma->vm_start,
0, MAP_FIXED) & ~PAGE_MASK)
--
2.30.2
