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[S390] css: update subchannel descriptor

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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>
This commit is contained in:
Sebastian Ott 2011-01-05 12:47:58 +01:00 committed by Martin Schwidefsky
parent 1de3447a41
commit 4bc4e965d3
1 changed files with 8 additions and 0 deletions
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8
drivers/s390/cio/css.c
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@ -618,6 +618,7 @@ EXPORT_SYMBOL_GPL(css_schedule_reprobe);
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 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
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