| commit | 7a9cc6e18b8fe751a41349b188dd468a8317192a | [log] [tgz] |
|---|---|---|
| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | Thu Jun 06 09:49:09 2013 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Wed Jun 26 21:10:11 2013 +0200 |
| tree | 0fe5e8f7afde1186a03ee8dd48f4226bc1f5c4a1 | |
| parent | 64150adf89df2ed165d6760f414fa6df07d22628 [diff] |
s390/cio: Make /dev/chsc a single-open device In order to allow serialization of dynamic I/O with this patch the /dev/chsc character device can only be accessed by one single opener. Any subsequent open calls are rejected with EBUSY. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>