[PATCH-2.2] verify_write not needed 486 & up

[PATCH-2.2] verify_write not needed 486 & up

[Paul Gortmaker]

The existing CONFIG_WP_WORKS_OK can be used to exclude
verify_write from being built into kernels for 486 and
higher.

Paul.

--- arch/i386/mm/fault.c.orig	Thu May 11 16:41:59 2000
+++ arch/i386/mm/fault.c	Thu Jan 11 09:16:48 2001
@@ -4,6 +4,7 @@
  *  Copyright (C) 1995  Linus Torvalds
  */
 
+#include <linux/config.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -24,6 +25,7 @@
 
 extern void die(const char *,struct pt_regs *,long);
 
+#ifndef CONFIG_X86_WP_WORKS_OK
 /*
  * Ugly, ugly, but the goto's result in better assembly..
  */
@@ -94,6 +96,7 @@
 	}
 	goto bad_area;
 }
+#endif
 
 asmlinkage void do_invalid_op(struct pt_regs *, unsigned long);
 extern unsigned long idt;
--- arch/i386/kernel/i386_ksyms.c.orig	Mon Dec 11 17:46:42 2000
+++ arch/i386/kernel/i386_ksyms.c	Thu Jan 11 09:16:48 2001
@@ -31,7 +31,9 @@
 EXPORT_SYMBOL(boot_cpu_data);
 EXPORT_SYMBOL(EISA_bus);
 EXPORT_SYMBOL(MCA_bus);
+#ifndef CONFIG_X86_WP_WORKS_OK
 EXPORT_SYMBOL(__verify_write);
+#endif
 EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(__ioremap);




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