dcssblk: issue warning when trying to save SN/EN type DCSS
authorGerald Schaefer <gerald.schaefer@de.ibm.com>
Fri, 16 Jan 2015 17:29:04 +0000 (18:29 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 22 Jan 2015 11:16:04 +0000 (12:16 +0100)
The content of a DCSS of type SN or EN cannot be saved. Issue a warning when
trying to save such a DCSS. Depending on the setup, this may be a user error
or intended behaviour e.g. with a multi-DCSS device.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/block/dcssblk.c

Simple merge