From 80f02d5424301bf4df195d09b1a664f394435851 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Sat, 9 Apr 2016 17:53:24 -0700 Subject: tty: Replace ASYNC_SUSPENDED bit and update atomically Replace ASYNC_SUSPENDED bit in the tty_port::flags field with TTY_PORT_SUSPENDED bit in the tty_port::iflags field. Introduce helpers tty_port_set_suspended() and tty_port_suspended() to abstract atomic bit ops. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- include/linux/tty.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux/tty.h') diff --git a/include/linux/tty.h b/include/linux/tty.h index 4254dfb..7ac5add 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -597,6 +597,19 @@ static inline void tty_port_set_check_carrier(struct tty_port *port, bool val) clear_bit(TTY_PORT_CHECK_CD, &port->iflags); } +static inline bool tty_port_suspended(struct tty_port *port) +{ + return test_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + +static inline void tty_port_set_suspended(struct tty_port *port, bool val) +{ + if (val) + set_bit(TTY_PORT_SUSPENDED, &port->iflags); + else + clear_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + extern struct tty_struct *tty_port_tty_get(struct tty_port *port); extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty); extern int tty_port_carrier_raised(struct tty_port *port); -- cgit v1.1