Linus Torvalds wrote:
> On Sun, 17 Dec 2000, Jamie Lokier wrote:
> > How about using a sentinel list entry representing the current position
> > in run_task_queue's loop?
>
> Nope.
>
> There may be multiple concurrent run_task_queue's executing, so for now
> I've applied Andrew Morton's patch that most closely gets the old
> behaviour of having a private list.
I wasn't clear. The sentinel is a local structure on the stack, and
only exists while run_task_queue is executing. Another name for this is
"deletion-safe pointer".
It works very nicely with concurrent run_task_queues: each one inserts
its own sentinel and skips over the others.
-- Jamie
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