n_tty: Fix loss of echoed characters and remove bkl from n_tty

[linux-2.6-omap-h63xx.git] / include / linux / tty.h

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 3f4954c55e53e3fb5e41c108f0b6797d7446820a..dfc77ded198a337f415f5b648df620f15165eaa1 100644 (file)
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -253,6 +253,7 @@ struct tty_struct {
        unsigned int column;
        unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1;
        unsigned char closing:1;
+       unsigned char echo_overrun:1;
        unsigned short minimum_to_wake;
        unsigned long overrun_time;
        int num_overrun;
@@ -262,11 +263,16 @@ struct tty_struct {
        int read_tail;
        int read_cnt;
        unsigned long read_flags[N_TTY_BUF_SIZE/(8*sizeof(unsigned long))];
+       unsigned char *echo_buf;
+       unsigned int echo_pos;
+       unsigned int echo_cnt;
        int canon_data;
        unsigned long canon_head;
        unsigned int canon_column;
        struct mutex atomic_read_lock;
        struct mutex atomic_write_lock;
+       struct mutex output_lock;
+       struct mutex echo_lock;
        unsigned char *write_buf;
        int write_cnt;
        spinlock_t read_lock;