diff options
| author |   Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-04-30 00:54:18 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:47 -0700 |
| commit | 39c2e60f8c584c1b29b5c4375dd49df7995386bb (patch) | |
| tree | fcb7e742d38c6e4655660d89be01e61d58ceebc4 /drivers/char/n_tty.c | |
| parent | isicom: fix buffer allocation (diff) | |
| download | linux-dev-39c2e60f8c584c1b29b5c4375dd49df7995386bb.tar.xz linux-dev-39c2e60f8c584c1b29b5c4375dd49df7995386bb.zip | |
tty: add throttle/unthrottle helpers
Something Arjan suggested which allows us to clean up the code nicely
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/n_tty.c')
| -rw-r--r-- | drivers/char/n_tty.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index abc93a93dcdd..19105ec203f7 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -147,10 +147,8 @@ static void put_tty_queue(unsigned char c, struct tty_struct *tty) static void check_unthrottle(struct tty_struct *tty) { - if (tty->count && - test_and_clear_bit(TTY_THROTTLED, &tty->flags) && - tty->ops->unthrottle) - tty->ops->unthrottle(tty); + if (tty->count) + tty_unthrottle(tty); } /** @@ -982,12 +980,8 @@ static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp, * mode. We don't want to throttle the driver if we're in * canonical mode and don't have a newline yet! */ - if (tty->receive_room < TTY_THRESHOLD_THROTTLE) { - /* check TTY_THROTTLED first so it indicates our state */ - if (!test_and_set_bit(TTY_THROTTLED, &tty->flags) && - tty->ops->throttle) - tty->ops->throttle(tty); - } + if (tty->receive_room < TTY_THRESHOLD_THROTTLE) + tty_throttle(tty); } int is_ignored(int sig) |