X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ppc64%2FiSeries%2FHvLpEvent.h;h=30936e433064a31c31d59db7f6f7eb3316510daa;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=669106f06a55593fc405a25f64e5c89bcf1547f5;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/include/asm-ppc64/iSeries/HvLpEvent.h b/include/asm-ppc64/iSeries/HvLpEvent.h
index 669106f06..30936e433 100644
--- a/include/asm-ppc64/iSeries/HvLpEvent.h
+++ b/include/asm-ppc64/iSeries/HvLpEvent.h
@@ -75,6 +75,9 @@ typedef void (*LpEventHandler)(struct HvLpEvent *, struct pt_regs *);
 extern int HvLpEvent_registerHandler( HvLpEvent_Type eventType, LpEventHandler hdlr);
 
 // Unregister a handler for an event type
+//  This call will sleep until the handler being removed is guaranteed to
+//  be no longer executing on any CPU. Do not call with locks held.
+//
 //  returns 0 on success
 //  Unregister will fail if there are any paths open for the type
 extern int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType );