[S390] css: update subchannel descriptor
Update the subchannel descriptor if we receive a
"Installed parameters modified" crw.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 825951b..24d8e97 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -618,6 +618,7 @@
static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
{
struct subchannel_id mchk_schid;
+ struct subchannel *sch;
if (overflow) {
css_schedule_eval_all();
@@ -637,6 +638,13 @@
if (crw1)
mchk_schid.ssid = (crw1->rsid >> 4) & 3;
+ if (crw0->erc == CRW_ERC_PMOD) {
+ sch = get_subchannel_by_schid(mchk_schid);
+ if (sch) {
+ css_update_ssd_info(sch);
+ put_device(&sch->dev);
+ }
+ }
/*
* Since we are always presented with IPI in the CRW, we have to
* use stsch() to find out if the subchannel in question has come