Re: [PATCH] softirq: Reserve a bit in tasklet.state for the user

[Peter Zijlstra]

On Mon, Jan 23, 2017 at 04:59:32PM +0100, Thomas Gleixner wrote:
> On Mon, 23 Jan 2017, Jens Axboe wrote:
> 
> > On 01/23/2017 08:33 AM, Chris Wilson wrote:
> > > Allow the user to communicate with the tasklet through the atomic state
> > > field by assigning a bit for their use. This can be used, for example,
> > > to differentiate between a tasklet called following an irq or from
> > > process context, where some hardware state may only be valid after the
> > > irq.

Egads, this sounds like a horrible hack. What does 'after and irq' even
mean?