diff options
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 922fb61b587a..b34e6612aef6 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -249,15 +249,12 @@ static void n_tty_check_throttle(struct tty_struct *tty) if (ldata->icanon && ldata->canon_head == ldata->read_tail) return; - while (1) { - int throttled; + do { tty_set_flow_change(tty, TTY_THROTTLE_SAFE); if (N_TTY_BUF_SIZE - read_cnt(ldata) >= TTY_THRESHOLD_THROTTLE) break; - throttled = tty_throttle_safe(tty); - if (!throttled) - break; - } + } while (tty_throttle_safe(tty)); + __tty_set_flow_change(tty, 0); } @@ -279,16 +276,14 @@ static void n_tty_check_unthrottle(struct tty_struct *tty) * we won't get any more characters. */ - while (1) { - int unthrottled; + do { tty_set_flow_change(tty, TTY_UNTHROTTLE_SAFE); if (chars_in_buffer(tty) > TTY_THRESHOLD_UNTHROTTLE) break; + n_tty_kick_worker(tty); - unthrottled = tty_unthrottle_safe(tty); - if (!unthrottled) - break; - } + } while (tty_unthrottle_safe(tty)); + __tty_set_flow_change(tty, 0); } |