Move TTY unrelated bits out of <sys/tty.h>.

For some reason, the <sys/tty.h> header file also contains routines of the
clists and console that are used inside the TTY layer. Because the clists
are not only used by the TTY layer (example: various input drivers), we'd
better move the entire clist programming interface into <sys/clist.h>. Also
remove a declaration of nonexistent variable.

The <sys/tty.h> header also contains various definitions for the console
code (tty_cons.c). Also move these to <sys/cons.h>, because they are
not implemented inside the TTY layer.

While there, create separate malloc pools for the clist and console code.

Approved by:	philip (mentor)

1 files changed, 4 insertions, 2 deletions

diff --git a/sys/kern/tty_cons.c b/sys/kern/tty_cons.c
index 99f6f51..ff57d82 100644
--- a/sys/kern/tty_cons.c
+++ b/sys/kern/tty_cons.c
@@ -66,6 +66,8 @@ __FBSDID("$FreeBSD$");
 #include <machine/cpu.h>
 #include <machine/clock.h>
 
+static MALLOC_DEFINE(M_TTYCONS, "tty console", "tty console handling");
+
 static	d_open_t	cnopen;
 static	d_close_t	cnclose;
 static	d_read_t	cnread;
@@ -673,7 +675,7 @@ constty_set(struct tty *tp)
 	KASSERT(tp != NULL, ("constty_set: NULL tp"));
 	if (consbuf == NULL) {
 		size = consmsgbuf_size;
-		consbuf = malloc(size, M_TTYS, M_WAITOK);
+		consbuf = malloc(size, M_TTYCONS, M_WAITOK);
 		msgbuf_init(&consmsgbuf, consbuf, size);
 		callout_init(&conscallout, 0);
 	}
@@ -695,7 +697,7 @@ constty_clear(void)
 	callout_stop(&conscallout);
 	while ((c = msgbuf_getchar(&consmsgbuf)) != -1)
 		cnputc(c);
-	free(consbuf, M_TTYS);
+	free(consbuf, M_TTYCONS);
 	consbuf = NULL;
 }