https://github.com/torvalds/linux
Revision 33b62a30f78536b976183cc764c08038ac011e0a authored by Stefan Weinhuber on 08 March 2010, 11:26:24 UTC, committed by Martin Schwidefsky on 08 March 2010, 11:26:27 UTC
In z/VM it is possible to attach a device as read-only. To prevent
unintentional write requests and subsequent I/O errors, we can detect
this configuration using the z/VM DIAG 210 interface and set the
respective linux block device to read-only as well.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
1 parent 584dfdd
History
Tip revision: 33b62a30f78536b976183cc764c08038ac011e0a authored by Stefan Weinhuber on 08 March 2010, 11:26:24 UTC
[S390] dasd: automatic recognition of read-only devices
Tip revision: 33b62a3
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