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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - arch/powerpc/lib/usercopy_64.c
2 * Functions which are too large to be inlined.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 #include <linux/module.h>
10 #include <asm/uaccess.h>
12 unsigned long copy_from_user(void *to
, const void __user
*from
, unsigned long n
)
14 if (likely(access_ok(VERIFY_READ
, from
, n
)))
15 n
= __copy_from_user(to
, from
, n
);
21 unsigned long copy_to_user(void __user
*to
, const void *from
, unsigned long n
)
23 if (likely(access_ok(VERIFY_WRITE
, to
, n
)))
24 n
= __copy_to_user(to
, from
, n
);
28 unsigned long copy_in_user(void __user
*to
, const void __user
*from
,
32 if (likely(access_ok(VERIFY_READ
, from
, n
) &&
33 access_ok(VERIFY_WRITE
, to
, n
)))
34 n
=__copy_tofrom_user(to
, from
, n
);
38 EXPORT_SYMBOL(copy_from_user
);
39 EXPORT_SYMBOL(copy_to_user
);
40 EXPORT_SYMBOL(copy_in_user
);