lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[S390] Automatically detect added cpus.

Browse Source 
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2008-04-30 13:38:37 +02:00
committed by Martin Schwidefsky
parent 0b18d318b8
commit 1e489518da
3 changed files with 36 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/s390/char/sclp_config.c
View File

@ -10,6 +10,7 @@
#include <linux/cpu.h>
#include <linux/sysdev.h>
#include <linux/workqueue.h>
#include <asm/smp.h>
#include "sclp.h"
#define TAG "sclp_config: "
@ -19,9 +20,11 @@ struct conf_mgm_data {
u8 ev_qualifier;
} __attribute__((packed));
#define EV_QUAL_CPU_CHANGE 1
#define EV_QUAL_CAP_CHANGE 3
static struct work_struct sclp_cpu_capability_work;
static struct work_struct sclp_cpu_change_work;
static void sclp_cpu_capability_notify(struct work_struct *work)
{
@ -37,13 +40,24 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
put_online_cpus();
}
static void sclp_cpu_change_notify(struct work_struct *work)
{
smp_rescan_cpus();
}
static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
{
struct conf_mgm_data *cdata;
cdata = (struct conf_mgm_data *)(evbuf + 1);
if (cdata->ev_qualifier == EV_QUAL_CAP_CHANGE)
switch (cdata->ev_qualifier) {
case EV_QUAL_CPU_CHANGE:
schedule_work(&sclp_cpu_change_work);
break;
case EV_QUAL_CAP_CHANGE:
schedule_work(&sclp_cpu_capability_work);
break;
}
}
static struct sclp_register sclp_conf_register =
@ -57,6 +71,7 @@ static int __init sclp_conf_init(void)
int rc;
INIT_WORK(&sclp_cpu_capability_work, sclp_cpu_capability_notify);
INIT_WORK(&sclp_cpu_change_work, sclp_cpu_change_notify);
rc = sclp_register(&sclp_conf_register);
if (rc) {