Commit 4bc4e965 authored by Sebastian Ott's avatar Sebastian Ott Committed by Martin Schwidefsky
Browse files

[S390] css: update subchannel descriptor 



Update the subchannel descriptor if we receive a
"Installed parameters modified" crw.

Signed-off-by: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 1de3447a

drivers/s390/cio/css.c

+8 −0
Original line number Diff line number Diff line
@@ -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