summaryrefslogtreecommitdiff
path: root/rust/kernel/sync/lock/mutex.rs
diff options
context:
space:
mode:
Diffstat (limited to 'rust/kernel/sync/lock/mutex.rs')
-rw-r--r--rust/kernel/sync/lock/mutex.rs11
1 files changed, 11 insertions, 0 deletions
diff --git a/rust/kernel/sync/lock/mutex.rs b/rust/kernel/sync/lock/mutex.rs
index 30632070ee67..c4f3b6cbfe48 100644
--- a/rust/kernel/sync/lock/mutex.rs
+++ b/rust/kernel/sync/lock/mutex.rs
@@ -115,4 +115,15 @@ unsafe impl super::Backend for MutexBackend {
// caller is the owner of the mutex.
unsafe { bindings::mutex_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::mutex_trylock(ptr) };
+
+ if result != 0 {
+ Some(())
+ } else {
+ None
+ }
+ }
}