From 22806dc1a8ffd88a7c7bdd070879e6e323db496a Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Thu, 17 Apr 2008 07:45:59 +0200 Subject: [S390] cio: Fix race for "fast" path gone/path back situations. Make sure we wait for previous evaluations triggered by path state changes to have settled before we manipulate path states again. Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens --- drivers/s390/cio/css.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/s390/cio/css.c') diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 3b45bbe6cce..3e829c82749 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -533,6 +533,12 @@ void css_schedule_eval_all(void) spin_unlock_irqrestore(&slow_subchannel_lock, flags); } +void css_wait_for_slow_path(void) +{ + flush_workqueue(ccw_device_notify_work); + flush_workqueue(slow_path_wq); +} + /* Reprobe subchannel if unregistered. */ static int reprobe_subchannel(struct subchannel_id schid, void *data) { -- cgit v1.2.3