From d6ab8ebb07d0f6360d2aa32dec71c24a32c21ea6 Mon Sep 17 00:00:00 2001
From: Brian Anderson <banderson@mozilla.com>
Date: Fri, 18 Nov 2011 16:02:48 -0800
Subject: [PATCH] rt: Add more comments to rust_task_sleep

---
 src/rt/rust_builtin.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 6b57fae7470..922b4024bc0 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -508,8 +508,8 @@ chan_id_send(type_desc *t, rust_task_id target_task_id,
     return (uintptr_t)sent;
 }
 
-// This is called by an intrinsic on the Rust stack.
-// Do not call on the C stack.
+// This is called by an intrinsic on the Rust stack and must run
+// entirely in the red zone. Do not call on the C stack.
 extern "C" CDECL void
 rust_task_sleep(rust_task *task, size_t time_in_us, bool *killed) {
     task->yield(time_in_us, killed);