diff options
author | Glauber Costa <gcosta@redhat.com> | 2008-06-25 13:43:30 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-09 03:14:27 -0400 |
commit | 8cb834e99f44bd56409b794504ae2b170675fc92 (patch) | |
tree | 32cacbbad4c5948d55068cc948ed4d7c8d27d722 /include/asm-x86/uaccess_32.h | |
parent | e30a44fdbf11c7ca3a0096d71790f176a4a09e03 (diff) |
x86: move __get_user and __put_user into uaccess.h.
We also carry the unaligned version with us. Only x86_64 uses
it, but there's no problem in defining it.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/uaccess_32.h')
-rw-r--r-- | include/asm-x86/uaccess_32.h | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/include/asm-x86/uaccess_32.h b/include/asm-x86/uaccess_32.h index e5c0437f509b..d3b5bf88ea86 100644 --- a/include/asm-x86/uaccess_32.h +++ b/include/asm-x86/uaccess_32.h | |||
@@ -20,52 +20,6 @@ extern struct movsl_mask { | |||
20 | } ____cacheline_aligned_in_smp movsl_mask; | 20 | } ____cacheline_aligned_in_smp movsl_mask; |
21 | #endif | 21 | #endif |
22 | 22 | ||
23 | /** | ||
24 | * __get_user: - Get a simple variable from user space, with less checking. | ||
25 | * @x: Variable to store result. | ||
26 | * @ptr: Source address, in user space. | ||
27 | * | ||
28 | * Context: User context only. This function may sleep. | ||
29 | * | ||
30 | * This macro copies a single simple variable from user space to kernel | ||
31 | * space. It supports simple types like char and int, but not larger | ||
32 | * data types like structures or arrays. | ||
33 | * | ||
34 | * @ptr must have pointer-to-simple-variable type, and the result of | ||
35 | * dereferencing @ptr must be assignable to @x without a cast. | ||
36 | * | ||
37 | * Caller must check the pointer with access_ok() before calling this | ||
38 | * function. | ||
39 | * | ||
40 | * Returns zero on success, or -EFAULT on error. | ||
41 | * On error, the variable @x is set to zero. | ||
42 | */ | ||
43 | #define __get_user(x, ptr) \ | ||
44 | __get_user_nocheck((x), (ptr), sizeof(*(ptr))) | ||
45 | |||
46 | |||
47 | /** | ||
48 | * __put_user: - Write a simple value into user space, with less checking. | ||
49 | * @x: Value to copy to user space. | ||
50 | * @ptr: Destination address, in user space. | ||
51 | * | ||
52 | * Context: User context only. This function may sleep. | ||
53 | * | ||
54 | * This macro copies a single simple value from kernel space to user | ||
55 | * space. It supports simple types like char and int, but not larger | ||
56 | * data types like structures or arrays. | ||
57 | * | ||
58 | * @ptr must have pointer-to-simple-variable type, and @x must be assignable | ||
59 | * to the result of dereferencing @ptr. | ||
60 | * | ||
61 | * Caller must check the pointer with access_ok() before calling this | ||
62 | * function. | ||
63 | * | ||
64 | * Returns zero on success, or -EFAULT on error. | ||
65 | */ | ||
66 | #define __put_user(x, ptr) \ | ||
67 | __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) | ||
68 | |||
69 | unsigned long __must_check __copy_to_user_ll | 23 | unsigned long __must_check __copy_to_user_ll |
70 | (void __user *to, const void *from, unsigned long n); | 24 | (void __user *to, const void *from, unsigned long n); |
71 | unsigned long __must_check __copy_from_user_ll | 25 | unsigned long __must_check __copy_from_user_ll |