X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fthread.lisp;h=a780b16887ad4e72fd9c14f2465f7946233be14d;hb=a00ea11a89c9db677e60edf6832c905a4527b5cb;hp=71dc92b03de6e0491ea334508da2500395c1328c;hpb=b56c1a4dc22aa0ac827343667584aa6090b15f02;p=sbcl.git

diff --git a/src/code/thread.lisp b/src/code/thread.lisp
index 71dc92b..a780b16 100644
--- a/src/code/thread.lisp
+++ b/src/code/thread.lisp
@@ -73,7 +73,7 @@ stale value, use MUTEX-OWNER instead."
 (define-deprecated-function :early "1.0.53.11" make-spinlock make-mutex (&key name)
   (make-mutex :name name))
 
-(define-deprecated-function :early "1.0.5.x" spinlock-name mutex-name (lock)
+(define-deprecated-function :early "1.0.53.11" spinlock-name mutex-name (lock)
   (mutex-name lock))
 
 (define-deprecated-function :early "1.0.53.11" (setf spinlock-name) (setf mutex-name) (name lock)
@@ -107,15 +107,22 @@ stale value, use MUTEX-OWNER instead."
                     'progn
                     'with-local-interrupts)))
       `(let* ((,thread *current-thread*)
-              (,prev (thread-waiting-for ,thread)))
+              (,prev (progn
+                       (barrier (:read))
+                       (thread-waiting-for ,thread))))
          (flet ((exec () ,@body))
            (if ,prev
                (,without
                 (unwind-protect
                      (progn
                        (setf (thread-waiting-for ,thread) nil)
+                       (barrier (:write))
                        (,with (exec)))
-                  (setf (thread-waiting-for ,thread) ,prev)))
+                  ;; If we were waiting on a waitqueue, this becomes a bogus
+                  ;; wakeup.
+                  (when (mutex-p ,prev)
+                    (setf (thread-waiting-for ,thread) ,prev)
+                    (barrier (:write)))))
                (exec)))))))
 
 (sb!xc:defmacro with-mutex ((mutex &key (value '*current-thread*) (wait-p t))
@@ -207,7 +214,7 @@ provided the default value is used for the mutex."
       (funcall function)))
 
   (defun call-with-recursive-system-lock/without-gcing (function mutex)
-    (declare (function function) (ignore lock))
+    (declare (function function) (ignore mutex))
     (without-gcing
       (funcall function))))