xen/smp: Use smp_store_boot_cpu_info() to store cpu info for BSP during boot time.

konradwilk · konradwilk · commit 06d0b5d9edce · 2012-12-17T21:56:35.000-05:00
Git commit 30106c1 ("x86, hotplug: Support functions for CPU0 online/offline") alters what the call to smp_store_cpu_info() does. For BSP we should use the smp_store_boot_cpu_info() and for secondary CPU's the old variant of smp_store_cpu_info() should be used. This fixes the regression introduced by said commit. Reported-and-Tested-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
@@ -254,7 +254,7 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
 	}
 	xen_init_lock_cpu(0);
 
-	smp_store_cpu_info(0);
+	smp_store_boot_cpu_info();
 	cpu_data(0).x86_max_cores = 1;
 
 	for_each_possible_cpu(i) {

Original file line number	Diff line number	Diff line change
`@@ -254,7 +254,7 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)`
`254`	`254`	`}`
`255`	`255`	`xen_init_lock_cpu(0);`
`256`	`256`
`257`		`- smp_store_cpu_info(0);`
	`257`	`+ smp_store_boot_cpu_info();`
`258`	`258`	`cpu_data(0).x86_max_cores = 1;`
`259`	`259`
`260`	`260`	`for_each_possible_cpu(i) {`