[PATCH v15 13/16] rust: sync: Expose lock::Backend

[Lyude Paul <lyude@redhat.com>]

Due to the addition of sync::lock::Backend::Context, lock guards can be
returned with a different Backend than their respective lock. Since we'll
be adding a trait bound for Backend to GlobalGuard in order to support
this, users will need to be able to directly refer to Backend so that they
can use it in trait bounds.

So, let's make this easier for users and expose Backend in sync.

Signed-off-by: Lyude Paul <lyude@redhat.com>
---
 rust/kernel/sync.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rust/kernel/sync.rs b/rust/kernel/sync.rs
index 847edd943c457..e4604d21c884a 100644
--- a/rust/kernel/sync.rs
+++ b/rust/kernel/sync.rs
@@ -29,6 +29,7 @@
 pub use lock::spinlock::{
     new_spinlock, new_spinlock_irq, SpinLock, SpinLockGuard, SpinLockIrq, SpinLockIrqGuard,
 };
+pub use lock::Backend;
 pub use locked_by::LockedBy;
 pub use refcount::Refcount;
 
-- 
2.52.0