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-rw-r--r--rust/kernel/sync/lock/spinlock.rs11
1 files changed, 11 insertions, 0 deletions
diff --git a/rust/kernel/sync/lock/spinlock.rs b/rust/kernel/sync/lock/spinlock.rs
index ea5c5bc1ce12..c900ae23db76 100644
--- a/rust/kernel/sync/lock/spinlock.rs
+++ b/rust/kernel/sync/lock/spinlock.rs
@@ -114,4 +114,15 @@ unsafe impl super::Backend for SpinLockBackend {
// caller is the owner of the spinlock.
unsafe { bindings::spin_unlock(ptr) }
}
+
+ unsafe fn try_lock(ptr: *mut Self::State) -> Option<Self::GuardState> {
+ // SAFETY: The `ptr` pointer is guaranteed to be valid and initialized before use.
+ let result = unsafe { bindings::spin_trylock(ptr) };
+
+ if result != 0 {
+ Some(())
+ } else {
+ None
+ }
+ }
}