s390/cio: export vpm via sysfs
authorSebastian Ott <sebott@linux.vnet.ibm.com>
Mon, 28 Jan 2013 18:32:27 +0000 (19:32 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 14 Feb 2013 14:55:08 +0000 (15:55 +0100)
commit84c57ad5d938ff28d85ac93b79c1f918a767a23e
treea16bfed7f9871eba623f50b40605b22546f77534
parente6a0b7c90f9f2663f470bbfaf83afcf52f8459e8
s390/cio: export vpm via sysfs

Add new attribute "vpm" to the subchannel sysfs directory of I/O
subchannels. This attribute contains a path mask indicating which
channel paths were successfully verified to be usable for I/O.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/device.c