Re: [PATCH 1/2] Avoid bio_endio recursion

[Alan Cox]

> That statement is true for any two block device protocol. Then, why 

Not it isn't. The mentality of quite a few devices is very different to
SCSI in the way the express queueing and caching. You cannot for example
map I2O Block onto SCSI at all.

> doesn't Linux use SCSI for all block devices? --- add scsi command block 
> to struct bio and we can pass them directly to controller driver 

That was discussed, along with continuing to split scsi and block aspects
of queueing, tagging and error recovery apart. Windows btw does generally
follow that 'everything is SCSI' approach
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/