>
> patch looks good to me. Or you could even drop the tty_sem completely from
> the release_dev path (patch below) since lock_kernel() is held in both
> tty_open() and the release_dev paths() (and there is no sleeping b/w
> setting the tty_closing flag and setting the TTY_CLOSING bit).
that's the wrong direction.. the idea is to first put new locking under
the BKL layer.. and at the end pull the BKL entirely.. The BKL isn't a
good lock.
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