Re: [patch] sched, tty: fix scheduling latencies in tty_io.c

Alan Cox
2004-09-14T12:14:25Z

On Maw, 2004-09-14 at 12:06, Ingo Molnar wrote:
> the attached patch fixes long scheduling latencies in tty_read() and
> tty_write() caused by the BKL.

Have you verified that none of the ldisc methods rely on the big kernel
lock. In doing the tty audit I found several cases that tty drivers
still rely on this lock so I am curious why you make this change.

Would it not be better to fix the tty layer locking rather than
introduces new random memory corruptors ?

Alan