diff mbox series

[v2,36/70] arch/xtensa: Use maple tree iterators for unmapped area

Message ID 20210112161240.2024684-37-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>
---
 arch/xtensa/kernel/syscall.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index 2c415fce6801a..26ec2e67879ad 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -62,6 +62,7 @@  unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct vm_area_struct *vmm;
+	MA_STATE(mas, &mm->mm_mt, addr, addr);
 
 	if (flags & MAP_FIXED) {
 		/* We do not accept a shared mapping if it would violate
@@ -83,7 +84,7 @@  unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	else
 		addr = PAGE_ALIGN(addr);
 
-	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
+	mas_for_each(&mas, vmm, ULONG_MAX) {
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
 		if (TASK_SIZE - len < addr)
 			return -ENOMEM;