Re: Preempt? (was Re: Cannot enable DMA on SATA drive (SCSI-libsata,VIA SATA))

[Jeff Garzik]

Andrew Morton wrote:
> Jeff Garzik <jgarzik@xxxxxxxxx> wrote:
>
> > Preempt will always be something I ask people to turn off when reporting 
> > driver bugs; it just adds too much complicated mess for zero gain.
>
>
> What driver bugs are apparent with preemption which are not already SMP bugs?

If your implied answer is true, then we wouldn't need 
preempt_{en,dis}able() sprinkled throughout the code so much.

	Jeff


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