From 04f378b198da233ca0aca341b113dc6579d46123 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 30 Apr 2008 00:53:29 -0700 Subject: tty: BKL pushdown - Push the BKL down into the line disciplines - Switch the tty layer to unlocked_ioctl - Introduce a new ctrl_lock spin lock for the control bits - Eliminate much of the lock_kernel use in n_tty - Prepare to (but don't yet) call the drivers with the lock dropped on the paths that historically held the lock BKL now primarily protects open/close/ldisc change in the tty layer [jirislaby@gmail.com: a couple of fixes] Signed-off-by: Alan Cox Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/compat_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index c6e72aebd16..9663e877672 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1046,7 +1046,7 @@ static int vt_check(struct file *file) struct inode *inode = file->f_path.dentry->d_inode; struct vc_data *vc; - if (file->f_op->ioctl != tty_ioctl) + if (file->f_op->unlocked_ioctl != tty_ioctl) return -EINVAL; tty = (struct tty_struct *)file->private_data; -- cgit v1.2.3-70-g09d2