Commit 013f912e authored Oct 21, 2025 by Boqun Feng

rust: sync: atomic: Implement Debug for Atomic<Debug>



If `Atomic<T>` is `Debug` then it's a `debugfs::Writer`, therefore make
it so since 1) debugfs needs to support `Atomic<T>` and 2) it's rather
trivial to implement `Debug` for `Atomic<Debug>`.

Tested-by: David Gow <davidgow@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251022035324.70785-3-boqun.feng@gmail.com

parent 14e9a18b

rust/kernel/sync/atomic.rs

+9 −0

Original line number	Diff line number	Diff line
		@@ -307,6 +307,15 @@ pub fn store<Ordering: ordering::ReleaseOrRelaxed>(&self, v: T, _: Ordering) {
		}
		}

		impl<T: AtomicType + core::fmt::Debug> core::fmt::Debug for Atomic<T>
		where
		T::Repr: AtomicBasicOps,
		{
		fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
		core::fmt::Debug::fmt(&self.load(Relaxed), f)
		}
		}

		impl<T: AtomicType> Atomic<T>
		where
		T::Repr: AtomicExchangeOps,