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/*
* Copyright (C) 2001 Chris Emerson (cemerson@chiark.greenend.org.uk)
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
/*
* These are here rather than tt/uaccess.c because skas mode needs them in
* order to do SIGBUS recovery when a tmpfs mount runs out of room.
*/
#include <linux/string.h>
#include "os.h"
static void __do_copy(void *to, const void *from, int n)
{
memcpy(to, from, n);
}
int __do_copy_to_user(void *to, const void *from, int n,
void **fault_addr, jmp_buf **fault_catcher)
{
unsigned long fault;
int faulted;
fault = __do_user_copy(to, from, n, fault_addr, fault_catcher,
__do_copy, &faulted);
if (!faulted)
return 0;
else
return n - (fault - (unsigned long) to);
}
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