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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2012-09-05 14:18:22 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-06 10:40:38 +0200 |
| commit | 1f08be80bef6f7a3faaa728db836b47ff742f41f (patch) | |
| tree | cfe898a80e37e3c612f6b4d88845d6b44ee6c3f3 /drivers/s390 | |
| parent | s390/hugetlb: use direct TLB flushing for hugetlbfs pages (diff) | |
| download | linux-1f08be80bef6f7a3faaa728db836b47ff742f41f.tar.xz linux-1f08be80bef6f7a3faaa728db836b47ff742f41f.zip | |
s390/dasd: move wake_up call
Ensure that all work is done when the process waiting for a
dasd state change is woken up. With this change it is save
to assume that after a userspace triggered state change and
a udev settle invocation there are no unexpected users of a
dasd device.
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/block/dasd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 15370a2c5ff0..6498d15f874f 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -534,11 +534,11 @@ static void dasd_change_state(struct dasd_device *device) if (rc) device->target = device->state; - if (device->state == device->target) - wake_up(&dasd_init_waitq); - /* let user-space know that the device status changed */ kobject_uevent(&device->cdev->dev.kobj, KOBJ_CHANGE); + + if (device->state == device->target) + wake_up(&dasd_init_waitq); } /* |