Re: tty's use of file_list_lock and file_move

[Jon Smirl]

On 7/10/06, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
> Ar Llu, 2006-07-10 am 18:35 -0400, ysgrifennodd Jon Smirl:
> > Assuming do_SAK has blocked anyone's ability to newly open the tty,
> > why does it need to search every file handle in the system instead of
> > just using tty->tty_files? tty->tty_files should contain a list of
> > everyone who has the tty open. Is this global search needed because of
> > duplicated handles?
>
> I don't actually know. Thats an area I've not dug too deeply into at
> all.

I wonder what the impact of banging on the SAK key on a box with 100K
processes is like. You may be able to stall the whole system.

--
Jon Smirl
jonsmirl@xxxxxxxxx
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