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Subject[PATCH-2.4] verify_write not needed 486 & up

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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