diff options
Diffstat (limited to 'rust/kernel/sync/lock.rs')
| -rw-r--r-- | rust/kernel/sync/lock.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/rust/kernel/sync/lock.rs b/rust/kernel/sync/lock.rs index eb80048e0110..8e7e6d5f61e4 100644 --- a/rust/kernel/sync/lock.rs +++ b/rust/kernel/sync/lock.rs @@ -199,7 +199,12 @@ pub struct Guard<'a, T: ?Sized, B: Backend> { // SAFETY: `Guard` is sync when the data protected by the lock is also sync. unsafe impl<T: Sync + ?Sized, B: Backend> Sync for Guard<'_, T, B> {} -impl<T: ?Sized, B: Backend> Guard<'_, T, B> { +impl<'a, T: ?Sized, B: Backend> Guard<'a, T, B> { + /// Returns the lock that this guard originates from. + pub fn lock_ref(&self) -> &'a Lock<T, B> { + self.lock + } + pub(crate) fn do_unlocked<U>(&mut self, cb: impl FnOnce() -> U) -> U { // SAFETY: The caller owns the lock, so it is safe to unlock it. unsafe { B::unlock(self.lock.state.get(), &self.state) }; |