You should revisit your code to not need access to the scsi_device
structure, and follow the layering of the block and scsi subsystems.
Maybe I should explain what I'm trying to do here.
Some of our software reads some of the values in /proc/ide/hda/. We're
porting this facility to libata-based drivers in 2.6 and moving it to
/sysfs/block/sda/. The sysfs show() functions will be given pointers to
gendisk structures but will need to obtain information from the
associated scsi_device structure.
Does anybody have any suggestions as to the "right" way to proceed?
meta:
I understand the layering of block vs scsi and so on, but I wonder why
there's so much isolation in the kernel. Why should it be impossible to
obtain the gendisk structure from the scsi_device structure, or to
obtain the block_device structure from the gendisk?
-ed falk
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