From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
The comment has been outdated since 6b73cff239e52 ("mm: change munmap
splitting order and move_vma()"). The move_vma() was altered to fix the
fragile state of the accounting since then.
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
---
mm/mmap.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/mm/mmap.c b/mm/mmap.c
index 5e74f5cb7be4..fa726116346d 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2703,13 +2703,8 @@ static int vms_gather_munmap_vmas(struct vma_munmap_struct *vms,
/*
* If we need to split any vma, do it now to save pain later.
- *
- * Note: mremap's move_vma VM_ACCOUNT handling assumes a partially
- * unmapped vm_area_struct will remain in use: so lower split_vma
- * places tmp vma above, and higher split_vma places tmp vma below.
+ * Does it split the first one?
*/
-
- /* Does it split the first one? */
if (vms->start > vms->vma->vm_start) {
/*
--
2.43.0
