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| author | Peter Hurley | 2013-06-15 15:14:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2013-07-24 01:43:02 +0200 |
| commit | ee0bab83ce65b6f6910cfc0c8278351a0583531b (patch) | |
| tree | d635d9f6f5776c18a12ebbcd9600b75056a826d5 /drivers/tty/n_tty.c | |
| parent | n_tty: Factor throttle/unthrottle into helper functions (diff) | |
| download | kernel-qcow2-linux-ee0bab83ce65b6f6910cfc0c8278351a0583531b.tar.gz kernel-qcow2-linux-ee0bab83ce65b6f6910cfc0c8278351a0583531b.tar.xz kernel-qcow2-linux-ee0bab83ce65b6f6910cfc0c8278351a0583531b.zip | |
n_tty: Move n_tty_write_wakeup() to avoid forward declaration
Prepare to special case pty flow control; avoid forward declaration.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 9e13c804ae72..0e3efc1ed2d5 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -214,6 +214,21 @@ static ssize_t chars_in_buffer(struct tty_struct *tty) return n; } +/** + * n_tty_write_wakeup - asynchronous I/O notifier + * @tty: tty device + * + * Required for the ptys, serial driver etc. since processes + * that attach themselves to the master and rely on ASYNC + * IO must be woken up + */ + +static void n_tty_write_wakeup(struct tty_struct *tty) +{ + if (tty->fasync && test_and_clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) + kill_fasync(&tty->fasync, SIGIO, POLL_OUT); +} + static inline void n_tty_check_throttle(struct tty_struct *tty) { /* @@ -1458,22 +1473,6 @@ handle_newline: put_tty_queue(c, ldata); } - -/** - * n_tty_write_wakeup - asynchronous I/O notifier - * @tty: tty device - * - * Required for the ptys, serial driver etc. since processes - * that attach themselves to the master and rely on ASYNC - * IO must be woken up - */ - -static void n_tty_write_wakeup(struct tty_struct *tty) -{ - if (tty->fasync && test_and_clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) - kill_fasync(&tty->fasync, SIGIO, POLL_OUT); -} - /** * n_tty_receive_buf - data receive * @tty: terminal device |