linux

iv/linux

History

Martin Schwidefsky a00bfd7147 [S390] dasd deadlock after state change pending interrupt.

The dasd_device_from_cdev function is called from interrupt context
to get the struct dasd_device associated with a ccw device. The
driver_data of the ccw device points to the dasd_devmap structure
which contains the pointer to the dasd_device structure. The lock
that protects the dasd_devmap structure is acquire with out irqsave.
To prevent the deadlock in dasd_device_from_cdev if it is called
from interrupt context the dependency to the dasd_devmap structure
needs to be removed. Let the driver_data of the ccw device point
to the dasd_device structure directly and use the ccw device lock
to protect the access.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2006-09-20 15:59:05 +02:00

block

[S390] dasd deadlock after state change pending interrupt.

2006-09-20 15:59:05 +02:00

char

[S390] tape class return value handling.

2006-08-07 17:00:28 +02:00

cio

[S390] qdio_get_micros return value.

2006-09-20 15:59:03 +02:00

crypto

[S390] zcrypt secure key cryptography extension.