Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
arch/xtensa/kernel/syscall.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index 201356faa7e6..118fe0ca7594 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -58,6 +58,7 @@ 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
@@ -79,7 +80,8 @@ 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) {
+ /* Must hold mm_mt lock */
+ mas_for_each(&mas, vmm, ULONG_MAX) {
/* At this point: (!vmm || addr < vmm->vm_end). */
if (TASK_SIZE - len < addr)
return -ENOMEM;
--
2.30.2
