diff options
| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2013-06-06 09:49:09 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-06-26 21:10:11 +0200 |
| commit | 7a9cc6e18b8fe751a41349b188dd468a8317192a (patch) | |
| tree | 0fe5e8f7afde1186a03ee8dd48f4226bc1f5c4a1 /kernel/up.c | |
| 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>
Diffstat (limited to 'kernel/up.c')
0 files changed, 0 insertions, 0 deletions