[PATCH] mm/vma: the pgoff is correct if can_merge_right

[Wei Yang <richard.weiyang@gmail.com>]

can_merge_right implies can_vma_merge_right() has checked the pgoff.

Don't need to assign it again.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
---
 mm/vma.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/vma.c b/mm/vma.c
index 4737afcb064c..fb4f1863f88e 100644
--- a/mm/vma.c
+++ b/mm/vma.c
@@ -915,7 +915,6 @@ struct vm_area_struct *vma_merge_new_range(struct vma_merge_struct *vmg)
 	unsigned long start = vmg->start;
 	unsigned long end = vmg->end;
 	pgoff_t pgoff = vmg->pgoff;
-	pgoff_t pglen = PHYS_PFN(end - start);
 	bool can_merge_left, can_merge_right;
 
 	mmap_assert_write_locked(vmg->mm);
@@ -936,7 +935,6 @@ struct vm_area_struct *vma_merge_new_range(struct vma_merge_struct *vmg)
 	if (can_merge_right) {
 		vmg->end = next->vm_end;
 		vmg->vma = next;
-		vmg->pgoff = next->vm_pgoff - pglen;
 	}
 
 	/* If we can merge with the previous VMA, adjust vmg accordingly. */
-- 
2.34.1