diff options
Diffstat (limited to 'drivers/tty/pty.c')
| -rw-r--r-- | drivers/tty/pty.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index 1b39dd639ee9..b38a28bd9511 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -89,17 +89,13 @@ static void pty_unthrottle(struct tty_struct *tty) * pty_space - report space left for writing * @to: tty we are writing into * - * The tty buffers allow 64K but we sneak a peak and clip at 8K this - * allows a lot of overspill room for echo and other fun messes to - * be handled properly + * Limit the buffer space used by ptys to 8k. */ static int pty_space(struct tty_struct *to) { - int n = 8192 - to->port->buf.memory_used; - if (n < 0) - return 0; - return n; + int n = tty_buffer_space_avail(to->port); + return min(n, 8192); } /** |