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