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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 13:48:37 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:19 -0700
commit8569c9140bd41089f9b6be8837ca421102714a90 (patch)
treecd289b322b215fe2ca2530aa320febfd99388d7f /arch/um/include/um_uaccess.h
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
x86, um: take arch/um/include/* out of the way
We can't just plop asm/* into it - userland helpers are built with it in search path and seeing asm/* show up there suddenly would be a bad idea. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/include/um_uaccess.h')
-rw-r--r--arch/um/include/um_uaccess.h97
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h
deleted file mode 100644
index 45c04999d67..00000000000
--- a/arch/um/include/um_uaccess.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#ifndef __ARCH_UM_UACCESS_H
-#define __ARCH_UM_UACCESS_H
-
-#include <asm/elf.h>
-#include <asm/fixmap.h>
-#include "sysdep/archsetjmp.h"
-
-#define __under_task_size(addr, size) \
- (((unsigned long) (addr) < TASK_SIZE) && \
- (((unsigned long) (addr) + (size)) < TASK_SIZE))
-
-#define __access_ok_vsyscall(type, addr, size) \
- ((type == VERIFY_READ) && \
- ((unsigned long) (addr) >= FIXADDR_USER_START) && \
- ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
- ((unsigned long) (addr) + (size) >= (unsigned long)(addr)))
-
-#define __addr_range_nowrap(addr, size) \
- ((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
-
-#define access_ok(type, addr, size) \
- (__addr_range_nowrap(addr, size) && \
- (__under_task_size(addr, size) || \
- __access_ok_vsyscall(type, addr, size) || \
- segment_eq(get_fs(), KERNEL_DS)))
-
-extern int copy_from_user(void *to, const void __user *from, int n);
-extern int copy_to_user(void __user *to, const void *from, int n);
-
-extern int __do_copy_to_user(void *to, const void *from, int n,
- void **fault_addr, jmp_buf **fault_catcher);
-
-/*
- * strncpy_from_user: - Copy a NUL terminated string from userspace.
- * @dst: Destination address, in kernel space. This buffer must be at
- * least @count bytes long.
- * @src: Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-
-extern int strncpy_from_user(char *dst, const char __user *src, int count);
-
-/*
- * __clear_user: - Zero a block of memory in user space, with less checking.
- * @to: Destination address, in user space.
- * @n: Number of bytes to zero.
- *
- * Zero a block of memory in user space. Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-extern int __clear_user(void __user *mem, int len);
-
-/*
- * clear_user: - Zero a block of memory in user space.
- * @to: Destination address, in user space.
- * @n: Number of bytes to zero.
- *
- * Zero a block of memory in user space.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-extern int clear_user(void __user *mem, int len);
-
-/*
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- * @n: The maximum valid length
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- * If the string is too long, returns a value greater than @n.
- */
-extern int strnlen_user(const void __user *str, int len);
-
-#endif