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Commit e6b25514 authored by Peter Oberparleiter's avatar Peter Oberparleiter Committed by Martin Schwidefsky
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s390/blacklist: Perform subchannel scan only when needed 



Move scheduling of a subchannel scan to those instances where new
devices may actually have become available. This reduces unnecessary
scan work in case devices were added to the blacklist.

Signed-off-by: default avatarPeter Oberparleiter <oberpar@linux.vnet.ibm.com>
Reviewed-by: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 47d30674

drivers/s390/cio/blacklist.c

+3 −3
Original line number Diff line number Diff line
@@ -260,16 +260,16 @@ static int blacklist_parse_proc_parameters(char *buf) 


	parm = strsep(&buf, " ");



	if (strcmp("free", parm) == 0)

	if (strcmp("free", parm) == 0) {

		rc = blacklist_parse_parameters(buf, free, 0);

	else if (strcmp("add", parm) == 0)

		css_schedule_eval_all_unreg(0);

	} else if (strcmp("add", parm) == 0)

		rc = blacklist_parse_parameters(buf, add, 0);

	else if (strcmp("purge", parm) == 0)

		return ccw_purge_blacklisted();

	else

		return -EINVAL;



	css_schedule_eval_all_unreg(0);



	return rc;

}