1 files changed, 15 insertions, 0 deletions
diff --git a/rust/kernel/bitmap.rs b/rust/kernel/bitmap.rs
index f349b1eb59f9..f45915694454 100644
--- a/rust/kernel/bitmap.rs
+++ b/rust/kernel/bitmap.rs
@@ -252,6 +252,21 @@ impl BitmapVec {
     pub fn len(&self) -> usize {
         self.nbits
     }
+
+    /// Fills this `Bitmap` with random bits.
+    #[cfg(CONFIG_FIND_BIT_BENCHMARK_RUST)]
+    pub fn fill_random(&mut self) {
+        // SAFETY: `self.as_mut_ptr` points to either an array of the
+        // appropriate length or one usize.
+        unsafe {
+            bindings::get_random_bytes(
+                self.as_mut_ptr().cast::<ffi::c_void>(),
+                usize::div_ceil(self.nbits, bindings::BITS_PER_LONG as usize)
+                    * bindings::BITS_PER_LONG as usize
+                    / 8,
+            );
+        }
+    }
 }
 
 impl Bitmap {