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-rw-r--r--arch/um/include/chan_kern.h2
-rw-r--r--arch/um/include/line.h4
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/um/include/chan_kern.h b/arch/um/include/chan_kern.h
index 84d1f64f9795d1..1bb5e9d9427049 100644
--- a/arch/um/include/chan_kern.h
+++ b/arch/um/include/chan_kern.h
@@ -38,6 +38,8 @@ extern int console_write_chan(struct list_head *chans, const char *buf,
int len);
extern int console_open_chan(struct line *line, struct console *co,
struct chan_opts *opts);
+extern void deactivate_chan(struct list_head *chans, int irq);
+extern void reactivate_chan(struct list_head *chans, int irq);
extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
extern void enable_chan(struct line *line);
extern void close_chan(struct list_head *chans, int delay_free_irq);
diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index e6cc3abfd4dbef..6f4d680dc1d4a8 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -38,6 +38,7 @@ struct line {
struct list_head chan_list;
int valid;
int count;
+ int throttled;
/*This lock is actually, mostly, local to*/
spinlock_t lock;
@@ -60,6 +61,7 @@ struct line {
{ init_str : str, \
init_pri : INIT_STATIC, \
valid : 1, \
+ throttled : 0, \
lock : SPIN_LOCK_UNLOCKED, \
buffer : NULL, \
head : NULL, \
@@ -88,6 +90,8 @@ extern void line_flush_chars(struct tty_struct *tty);
extern int line_write_room(struct tty_struct *tty);
extern int line_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
+extern void line_throttle(struct tty_struct *tty);
+extern void line_unthrottle(struct tty_struct *tty);
extern char *add_xterm_umid(char *base);
extern int line_setup_irq(int fd, int input, int output, struct line *line,