X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=urcu%2Ffutex.h;h=4d30faa31fad6d576af58a65ca75da6f135f526d;hb=52c67a3d6139a6bf56b97ed350c7f3beaef3ce67;hp=cdaa430003ad6dfca0f5d7537ff4a1d021889a7e;hpb=3887117a5650a14b8b9cc95e2e73bc269575bf46;p=userspace-rcu.git

diff --git a/urcu/futex.h b/urcu/futex.h
index cdaa430..4d30faa 100644
--- a/urcu/futex.h
+++ b/urcu/futex.h
@@ -42,6 +42,9 @@ extern "C" {
  *
  * futex_async is signal-handler safe for the wakeup. It uses polling
  * on the wait-side in compatibility mode.
+ *
+ * BEWARE: sys_futex() FUTEX_WAIT may return early if interrupted
+ * (returns EINTR).
  */
 
 #ifdef CONFIG_RCU_HAVE_FUTEX