| commit | 7eee12b44eb4c0c30b0eac5946fb59f1460572f6 | [log] [tgz] |
|---|---|---|
| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | Wed Mar 21 17:17:14 2018 +0100 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Tue Apr 10 07:38:58 2018 +0200 |
| tree | f9d33dcc31270e5f9b89d58111375db5ee0aa4d2 | |
| parent | 89286320a236d245834075fa13adb0bdd827ecaa [diff] |
s390/qdio: lock device while installing IRQ handler During setup, qdio takes control of the presented ccw device and replaces the device's IRQ handler with its own. To avoid any interference with conccurent activity on the device, this should be done while holding the device's lock. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>