[PATCH] ppc64: one instruction fix for synchronization bug found during cpu DLPAR...

From: Anton Blanchard <anton@samba.org>

one instruction fix for synchronization bug found during cpu DLPAR
development, from Joel Schopp

diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index ab2603589781075bc832d10166eae8a986fa4141..a1dbedd8986e7e853a919075c83016babc42bc7f 100644 (file)
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -147,6 +147,7 @@ _GLOBAL(__secondary_hold)
        /* Relocation is off & we are located at an address less */
        /* than 0x100, so only need to grab low order offset.    */
        std     r24,__secondary_hold_acknowledge@l(0)
+       sync
 
        /* All secondary cpu's wait here until told to start. */
 100:    ld      r4,__secondary_hold_spinloop@l(0)