forked from Minki/linux
a00bfd7147
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> |
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| .. | ||
| dasd_3370_erp.c | ||
| dasd_3990_erp.c | ||
| dasd_9336_erp.c | ||
| dasd_9343_erp.c | ||
| dasd_devmap.c | ||
| dasd_diag.c | ||
| dasd_diag.h | ||
| dasd_eckd.c | ||
| dasd_eckd.h | ||
| dasd_eer.c | ||
| dasd_erp.c | ||
| dasd_fba.c | ||
| dasd_fba.h | ||
| dasd_genhd.c | ||
| dasd_int.h | ||
| dasd_ioctl.c | ||
| dasd_proc.c | ||
| dasd.c | ||
| dcssblk.c | ||
| Kconfig | ||
| Makefile | ||
| xpram.c | ||