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-rw-r--r--include/linux/tty.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 97d660ed70c..90b4fdc8a61 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -39,10 +39,14 @@ struct tty_buffer {
int size;
int commit;
int read;
+ int flags;
/* Data points here */
unsigned long data[0];
};
+/* Values for .flags field of tty_buffer */
+#define TTYB_NORMAL 1 /* buffer has no flags buffer */
+
static inline unsigned char *char_buf_ptr(struct tty_buffer *b, int ofs)
{
return ((unsigned char *)b->data) + ofs;
@@ -60,7 +64,8 @@ struct tty_bufhead {
atomic_t priority;
struct tty_buffer sentinel;
struct llist_head free; /* Free queue head */
- atomic_t memory_used; /* In-use buffers excluding free list */
+ atomic_t mem_used; /* In-use buffers excluding free list */
+ int mem_limit;
struct tty_buffer *tail; /* Active buffer */
};
/*
@@ -137,6 +142,7 @@ struct tty_bufhead {
#define C_CLOCAL(tty) _C_FLAG((tty), CLOCAL)
#define C_CIBAUD(tty) _C_FLAG((tty), CIBAUD)
#define C_CRTSCTS(tty) _C_FLAG((tty), CRTSCTS)
+#define C_CMSPAR(tty) _C_FLAG((tty), CMSPAR)
#define L_ISIG(tty) _L_FLAG((tty), ISIG)
#define L_ICANON(tty) _L_FLAG((tty), ICANON)
@@ -422,7 +428,6 @@ extern int is_ignored(int sig);
extern int tty_signal(int sig, struct tty_struct *tty);
extern void tty_hangup(struct tty_struct *tty);
extern void tty_vhangup(struct tty_struct *tty);
-extern void tty_vhangup_locked(struct tty_struct *tty);
extern void tty_unhangup(struct file *filp);
extern int tty_hung_up_p(struct file *filp);
extern void do_SAK(struct tty_struct *tty);