diff mbox series

[v2,39/70] drivers/tee/optee: Use maple tree iterators for __check_mem_type()

Message ID 20210112161240.2024684-40-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 Jan. 12, 2021, 4:12 p.m. UTC 
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 drivers/tee/optee/call.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c
index c981757ba0d40..94acf379eaeeb 100644
--- a/drivers/tee/optee/call.c
+++ b/drivers/tee/optee/call.c
@@ -545,12 +545,17 @@  static bool is_normal_memory(pgprot_t p)
 
 static int __check_mem_type(struct vm_area_struct *vma, unsigned long end)
 {
-	while (vma && is_normal_memory(vma->vm_page_prot)) {
-		if (vma->vm_end >= end)
-			return 0;
-		vma = vma->vm_next;
+	MA_STATE(mas, &vma->vm_mm->mm_mt, vma->vm_start, vma->vm_start);
+
+
+	mas_for_each(&mas, vma, end) {
+		if (!is_normal_memory(vma->vm_page_prot))
+		    break;
 	}
 
+	if (!vma)
+		return 0;
+
 	return -EINVAL;
 }