diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 56627c1..d3c52dd 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -48,3 +48,18 @@
 Why:	Replaced by ->compat_ioctl in file_operations and other method
 	vecors.
 Who:	Andi Kleen <ak@muc.de>, Christoph Hellwig <hch@lst.de>
+
+---------------------------
+
+What:	RCU API moves to EXPORT_SYMBOL_GPL
+When:	April 2006
+Files:	include/linux/rcupdate.h, kernel/rcupdate.c
+Why:	Outside of Linux, the only implementations of anything even
+	vaguely resembling RCU that I am aware of are in DYNIX/ptx,
+	VM/XA, Tornado, and K42.  I do not expect anyone to port binary
+	drivers or kernel modules from any of these, since the first two
+	are owned by IBM and the last two are open-source research OSes.
+	So these will move to GPL after a grace period to allow
+	people, who might be using implementations that I am not aware
+	of, to adjust to this upcoming change.
+Who:	Paul E. McKenney <paulmck@us.ibm.com>
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index d00eded..ad49772 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -465,6 +465,6 @@
 }
 
 module_param(maxbatch, int, 0);
-EXPORT_SYMBOL_GPL(call_rcu);
-EXPORT_SYMBOL_GPL(call_rcu_bh);
-EXPORT_SYMBOL_GPL(synchronize_kernel);
+EXPORT_SYMBOL(call_rcu);  /* WARNING: GPL-only in April 2006. */
+EXPORT_SYMBOL(call_rcu_bh);  /* WARNING: GPL-only in April 2006. */
+EXPORT_SYMBOL(synchronize_kernel);  /* WARNING: GPL-only in April 2006. */