diff options
| author | Jiri Slaby <jirislaby@gmail.com> | 2007-07-15 23:40:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:43 -0700 |
| commit | 5a52bd4a2dcb570333ce6fe2e16cd311650dbdc8 (patch) | |
| tree | fafae698d93cb5d03cb110f5f8b8f39596eaad40 /drivers | |
| parent | 2b770b4b29c741bbcbb77d2618955897765a81bf (diff) | |
| download | lwn-5a52bd4a2dcb570333ce6fe2e16cd311650dbdc8.tar.gz lwn-5a52bd4a2dcb570333ce6fe2e16cd311650dbdc8.zip | |
Char: tty_ioctl, use wait_event_interruptible_timeout
tty_ioctl, use wait_event_interruptible_timeout
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/tty_ioctl.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index 918e24c885f1..2b6a3847a9ee 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -52,8 +52,6 @@ void tty_wait_until_sent(struct tty_struct * tty, long timeout) { - DECLARE_WAITQUEUE(wait, current); - #ifdef TTY_DEBUG_WAIT_UNTIL_SENT char buf[64]; @@ -61,26 +59,13 @@ void tty_wait_until_sent(struct tty_struct * tty, long timeout) #endif if (!tty->driver->chars_in_buffer) return; - add_wait_queue(&tty->write_wait, &wait); if (!timeout) timeout = MAX_SCHEDULE_TIMEOUT; - do { -#ifdef TTY_DEBUG_WAIT_UNTIL_SENT - printk(KERN_DEBUG "waiting %s...(%d)\n", tty_name(tty, buf), - tty->driver->chars_in_buffer(tty)); -#endif - set_current_state(TASK_INTERRUPTIBLE); - if (signal_pending(current)) - goto stop_waiting; - if (!tty->driver->chars_in_buffer(tty)) - break; - timeout = schedule_timeout(timeout); - } while (timeout); + if (wait_event_interruptible_timeout(tty->write_wait, + !tty->driver->chars_in_buffer(tty), timeout)) + return; if (tty->driver->wait_until_sent) tty->driver->wait_until_sent(tty, timeout); -stop_waiting: - set_current_state(TASK_RUNNING); - remove_wait_queue(&tty->write_wait, &wait); } EXPORT_SYMBOL(tty_wait_until_sent); |