Messages in this thread | | | Date | Mon, 18 Dec 2000 21:51:23 +0100 | From | Jamie Lokier <> | Subject | Re: 2.4.0-test13-pre1 lockup: run_task_queue or tty_io are wrong |
| |
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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
| |