diff mbox series

[26/28] mm/mmap: Change do_brk_munmap() to use do_mas_align_munmap()

Message ID 20201210170402.3468568-27-Liam.Howlett@Oracle.com (mailing list archive)
State New, archived
Headers show
Series RFC mm: Introducing the Maple Tree | expand

Commit Message

Liam R. Howlett Dec. 10, 2020, 5:04 p.m. UTC 
do_brk_munmap() already has aligned addresses.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 mm/mmap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/mmap.c b/mm/mmap.c
index 36a6b03193eb3..284c90504b44c 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2992,12 +2992,13 @@  static int do_brk_munmap(struct ma_state *mas, struct vm_area_struct *vma,
 	struct mm_struct *mm = vma->vm_mm;
 	struct vm_area_struct unmap;
 	unsigned long unmap_pages;
-	int ret = 1;
+	int ret;
 
 	arch_unmap(mm, newbrk, oldbrk);
 
 	if (likely(vma->vm_start >= newbrk)) { // remove entire mapping(s)
-		ret = do_mas_munmap(mas, mm, newbrk, oldbrk-newbrk, uf, true);
+		ret = do_mas_align_munmap(mas, vma, mm, newbrk, oldbrk, uf,
+					  true);
 		goto munmap_full_vma;
 	}