patch-2.1.111 linux/drivers/char/vc_screen.c

• Lines: 41
• Date: Wed Jul 22 13:40:04 1998
• Orig file: v2.1.110/linux/drivers/char/vc_screen.c
• Orig date: Wed Jul 1 19:38:54 1998

diff -u --recursive --new-file v2.1.110/linux/drivers/char/vc_screen.c linux/drivers/char/vc_screen.c
@@ -170,7 +170,7 @@
 	long p = *ppos;
 	long viewed, attr, size, written;
 	const char *buf0;
-	unsigned short *org = NULL;
+	u16 *org0 = NULL, *org = NULL;
 
 	attr = (currcons & 128);
 	currcons = (currcons & 127);
@@ -193,7 +193,7 @@
 
 	buf0 = buf;
 	if (!attr) {
-		org = screen_pos(currcons, p, viewed);
+		org0 = org = screen_pos(currcons, p, viewed);
 		while (count > 0) {
 			unsigned char c;
 			count--;
@@ -211,8 +211,8 @@
 				putconsxy(currcons, header+2);
 		}
 		if (count > 0) {
-		    p -= HEADER_SIZE;
-			org = screen_pos(currcons, p/2, viewed);
+			p -= HEADER_SIZE;
+			org0 = org = screen_pos(currcons, p/2, viewed);
 			if ((p & 1) && count > 0) {
 			    char c;
 				count--;
@@ -244,9 +244,8 @@
 #endif
 		}
 	}
-	if (currcons == fg_console)
-		/* Horribly inefficient if count < screen size.  */
-		update_screen(currcons);
+	if (org0)
+		update_region(currcons, (unsigned long)(org0), org-org0);
 	written = buf - buf0;
 	*ppos += written;
 	RETURN( written );