Re: math_state_restore and kernel_fpu_end disable interrupts?

[Nate Eldredge]

On Sun, 19 Jan 2014, George Spelvin wrote:

> > It's credited to Suresh Siddha, whom I've cc'ed (along with others who
> > signed off).  Suresh, if you're still around, could you comment on why
> > math_state_restore always leaves interrupts disabled, regardless of their
> > state on entry?  Is there a deep reason or is it a bug?
>
> What the comments seemed to be implying was that it was a bug to enter
> this code with interrupts enabled.  So the problem may be a little bit
> more systemic; expert counsel is required.

It would be kind of weird for code that requires disabled interrupts on 
entry to turn around and enable interrupts itself.  I agree that it would 
really help for a guru to take a look...

On which note, Suresh's email bounced :-(

--
Nate Eldredge
nate@xxxxxxxxxxxxxxxxxxxx

--
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/