Messages in this thread | | | Date | Mon, 10 Jul 2006 19:04:08 -0400 | From | "Jon Smirl" <> | Subject | Re: tty's use of file_list_lock and file_move |
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On 7/10/06, Alan Cox <alan@lxorguk.ukuu.org.uk> 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@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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