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-rw-r--r--src/mutex.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mutex.rs b/src/mutex.rs
index 86bd5d5..0975b83 100644
--- a/src/mutex.rs
+++ b/src/mutex.rs
@@ -1,4 +1,8 @@
//! Implementation of a critical section based mutex that also implements the `mutex-trait`.
+//!
+//! ## Safety
+//!
+//! Note that this is only safe in single core applications.
use core::cell::UnsafeCell;