The patch below fixes an arithmetic wrap-around issue on 32bit machines
using smp-tbsync. Without this patch a timebase value over
0x000000007fffffff will hang the boot process while bringing up
secondary CPUs.
Signed-off-by: NAdrian Cox <adrian@humboldt.co.uk>
Signed-off-by: NPaul Mackerras <paulus@samba.org>