Commit c2048b0a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] css: fix rsid evaluation for 2nd crw
  [S390] nohz/s390: fix arch_needs_cpu() return value on offline cpus
parents de47de74 8d7bfb4a

arch/s390/kernel/vtime.c

+19 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <linux/kernel_stat.h>

#include <linux/rcupdate.h>

#include <linux/posix-timers.h>

#include <linux/cpu.h>



#include <asm/s390_ext.h>

#include <asm/timer.h>
@@ -566,6 +567,23 @@ void init_cpu_vtimer(void) 
	__ctl_set_bit(0,10);

}



static int __cpuinit s390_nohz_notify(struct notifier_block *self,

				      unsigned long action, void *hcpu)

{

	struct s390_idle_data *idle;

	long cpu = (long) hcpu;



	idle = &per_cpu(s390_idle, cpu);

	switch (action) {

	case CPU_DYING:

	case CPU_DYING_FROZEN:

		idle->nohz_delay = 0;

	default:

		break;

	}

	return NOTIFY_OK;

}



void __init vtime_init(void)

{

	/* request the cpu timer external interrupt */
@@ -574,5 +592,6 @@ void __init vtime_init(void) 


	/* Enable cpu timer interrupts on the boot cpu. */

	init_cpu_vtimer();

	cpu_notifier(s390_nohz_notify, 0);

}

drivers/s390/cio/css.c

+1 −1
Original line number Diff line number Diff line
@@ -635,7 +635,7 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow) 
	init_subchannel_id(&mchk_schid);

	mchk_schid.sch_no = crw0->rsid;

	if (crw1)

		mchk_schid.ssid = (crw1->rsid >> 8) & 3;

		mchk_schid.ssid = (crw1->rsid >> 4) & 3;



	/*

	 * Since we are always presented with IPI in the CRW, we have to