[Patch] sysrq-show-output, kernel 2.4.17

[Harald Holzer]

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Sysrq-m didnt show memory information on the serial console.

This patch sets the console_loglevel to 7 before it calls show_mem,
show_regs and show_state, to get the output.

Harald Holzer

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--- linux-2.4.17/drivers/char/sysrq.c	Fri Dec 21 18:41:54 2001
+++ linux/drivers/char/sysrq.c	Tue Jan  1 21:18:24 2002
@@ -246,8 +246,14 @@
=20
 static void sysrq_handle_showregs(int key, struct pt_regs *pt_regs,
 		struct kbd_struct *kbd, struct tty_struct *tty) {
+	int orig_loglevel;
+
 	if (pt_regs)
+		orig_loglevel =3D console_loglevel;
+		console_loglevel =3D 7;
 		show_regs(pt_regs);
+		console_loglevel =3D orig_loglevel;
+
 }
 static struct sysrq_key_op sysrq_showregs_op =3D {
 	handler:	sysrq_handle_showregs,
@@ -258,7 +264,12 @@
=20
 static void sysrq_handle_showstate(int key, struct pt_regs *pt_regs,
 		struct kbd_struct *kbd, struct tty_struct *tty) {
+	int orig_loglevel;
+
+	orig_loglevel =3D console_loglevel;
+	console_loglevel =3D 7;
 	show_state();
+	console_loglevel =3D orig_loglevel;
 }
 static struct sysrq_key_op sysrq_showstate_op =3D {
 	handler:	sysrq_handle_showstate,
@@ -269,7 +280,12 @@
=20
 static void sysrq_handle_showmem(int key, struct pt_regs *pt_regs,
 		struct kbd_struct *kbd, struct tty_struct *tty) {
+	int orig_loglevel;
+
+	orig_loglevel =3D console_loglevel;
+	console_loglevel =3D 7;
 	show_mem();
+	console_loglevel =3D orig_loglevel;
 }
 static struct sysrq_key_op sysrq_showmem_op =3D {
 	handler:	sysrq_handle_showmem,

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