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SubjectRe: io_request_lock question (2.2)
On Fri, Dec 08, 2000 at 04:03:58PM -0800, Matthew Jacob wrote:
>
>
> On Fri, 8 Dec 2000, Alan Cox wrote:
>
> > > Yes, and I believe that this is what's broken about the SCSI midlayer. The the
> > > io_request_lock cannot be completely released in a SCSI HBA because the flags
> >
> > You can drop it with spin_unlock_irq and that is fine. I do that with no
> > problems in the I2O scsi driver for example
>
> I am (like, I think I *finally* got locking sorta right in my QLogic driver),
> but doesn't this still leave ints blocked for this CPU at least?

spin_unlock_irq() does a __sti()
spin_unlock() doesn't.

-Andi
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