X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fs390%2Fkernel%2Fmachine_kexec.c;h=f0ed5c642c74cb6480426b106d1cc3e0aa05eed1;hb=292dd876ee765c478b27c93cc51e93a558ed58bf;hp=5aa71b05b8ae81628902377fc40b35057cd0cae0;hpb=c1b054d03f5b31c33eaa0b267c629b118eaf3790;p=powerpc.git

diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 5aa71b05b8..f0ed5c642c 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -85,7 +85,7 @@ kexec_halt_all_cpus(void *kernel_image)
 		pfault_fini();
 #endif
 
-	if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
+	if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1)
 		signal_processor(smp_processor_id(), sigp_stop);
 
 	/* Wait for all other cpus to enter stopped state */