From cd314ab05834518dd20072684081af8afc9edb6c Mon Sep 17 00:00:00 2001
From: Nabeel Omer <nabeelkomer@gmail.com>
Date: Thu, 13 Oct 2016 20:37:09 +0530
Subject: [PATCH] Updated RwLock Docs

---
 src/libstd/sync/rwlock.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libstd/sync/rwlock.rs b/src/libstd/sync/rwlock.rs
index 48ecae185f95..c5a03f72e290 100644
--- a/src/libstd/sync/rwlock.rs
+++ b/src/libstd/sync/rwlock.rs
@@ -63,6 +63,9 @@ use sys_common::rwlock as sys;
 ///     assert_eq!(*w, 6);
 /// } // write lock is dropped here
 /// ```
+/// # Panics
+///
+/// This function might panic when called if the lock is already held by the current thread.
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct RwLock<T: ?Sized> {
     inner: Box<sys::RWLock>,