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path: root/drivers/android/binder/page_range.rs
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Diffstat (limited to 'drivers/android/binder/page_range.rs')
-rw-r--r--drivers/android/binder/page_range.rs8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/android/binder/page_range.rs b/drivers/android/binder/page_range.rs
index 9dfc154e5dd4..b57e0c7ba3f1 100644
--- a/drivers/android/binder/page_range.rs
+++ b/drivers/android/binder/page_range.rs
@@ -13,6 +13,8 @@
//
// The shrinker will use trylock methods because it locks them in a different order.
+use crate::AssertSync;
+
use core::{
marker::PhantomPinned,
mem::{size_of, size_of_val, MaybeUninit},
@@ -143,14 +145,14 @@ pub(crate) struct ShrinkablePageRange {
}
// We do not define any ops. For now, used only to check identity of vmas.
-static BINDER_VM_OPS: bindings::vm_operations_struct = pin_init::zeroed();
+static BINDER_VM_OPS: AssertSync<bindings::vm_operations_struct> = AssertSync(pin_init::zeroed());
// To ensure that we do not accidentally install pages into or zap pages from the wrong vma, we
// check its vm_ops and private data before using it.
fn check_vma(vma: &virt::VmaRef, owner: *const ShrinkablePageRange) -> Option<&virt::VmaMixedMap> {
// SAFETY: Just reading the vm_ops pointer of any active vma is safe.
let vm_ops = unsafe { (*vma.as_ptr()).vm_ops };
- if !ptr::eq(vm_ops, &BINDER_VM_OPS) {
+ if !ptr::eq(vm_ops, &BINDER_VM_OPS.0) {
return None;
}
@@ -342,7 +344,7 @@ impl ShrinkablePageRange {
// SAFETY: We own the vma, and we don't use any methods on VmaNew that rely on
// `vm_ops`.
- unsafe { (*vma.as_ptr()).vm_ops = &BINDER_VM_OPS };
+ unsafe { (*vma.as_ptr()).vm_ops = &BINDER_VM_OPS.0 };
Ok(num_pages)
}