[PATCH-2.4] verify_write not needed 486 & up

[PATCH-2.4] 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~	Mon Nov 20 04:19:42 2000
+++ arch/i386/mm/fault.c	Thu Jan 11 09:03:50 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>
@@ -25,6 +26,7 @@
 
 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..
  */
@@ -76,6 +78,7 @@
 bad_area:
 	return 0;
 }
+#endif
 
 extern spinlock_t console_lock, timerlist_lock;
 
--- arch/i386/kernel/i386_ksyms.c~	Thu Jan 11 09:06:12 2001
+++ arch/i386/kernel/i386_ksyms.c	Thu Jan 11 09:05:57 2001
@@ -53,7 +53,9 @@
 EXPORT_SYMBOL(EISA_bus);
 #endif
 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(dump_extended_fpu);





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