diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/tty/tty_ioctl.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/tty/tty_ioctl.c')
| -rw-r--r-- | kernel/drivers/tty/tty_ioctl.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/drivers/tty/tty_ioctl.c b/kernel/drivers/tty/tty_ioctl.c index 8e53fe469..1445dd39a 100644 --- a/kernel/drivers/tty/tty_ioctl.c +++ b/kernel/drivers/tty/tty_ioctl.c @@ -26,6 +26,12 @@ #undef TTY_DEBUG_WAIT_UNTIL_SENT +#ifdef TTY_DEBUG_WAIT_UNTIL_SENT +# define tty_debug_wait_until_sent(tty, f, args...) tty_debug(tty, f, ##args) +#else +# define tty_debug_wait_until_sent(tty, f, args...) do {} while (0) +#endif + #undef DEBUG /* @@ -210,11 +216,8 @@ int tty_unthrottle_safe(struct tty_struct *tty) void tty_wait_until_sent(struct tty_struct *tty, long timeout) { -#ifdef TTY_DEBUG_WAIT_UNTIL_SENT - char buf[64]; + tty_debug_wait_until_sent(tty, "\n"); - printk(KERN_DEBUG "%s wait until sent...\n", tty_name(tty, buf)); -#endif if (!timeout) timeout = MAX_SCHEDULE_TIMEOUT; @@ -1144,16 +1147,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file, spin_unlock_irq(&tty->flow_lock); break; case TCIOFF: - down_read(&tty->termios_rwsem); if (STOP_CHAR(tty) != __DISABLED_CHAR) retval = tty_send_xchar(tty, STOP_CHAR(tty)); - up_read(&tty->termios_rwsem); break; case TCION: - down_read(&tty->termios_rwsem); if (START_CHAR(tty) != __DISABLED_CHAR) retval = tty_send_xchar(tty, START_CHAR(tty)); - up_read(&tty->termios_rwsem); break; default: return -EINVAL; |