> > > Look in some of the block drivers, floppy.c or loop.c. These do call
> > > the task queue, even though that's only as an aid to the rest of the
> > > kernel, because they know they can help at that point, and it's not at
> > > all clear what context they're in. Perhaps it's best to look in
> > > floppy.c, which runs the task queue in its init routine! I mean to say
> >
> > Init routine is called from insmod context or at kernel bootup (from pid==1).
>
> That's nitpicking!
I did not want to be nitpicking. init() really is considered process
context, and it looks to me like unplug is *blocking* operation so it
really needs proceess context.
Pavel
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