uaccess.c File Reference

#include <linux/module.h>
#include <asm/uaccess.h>

Go to the source code of this file.

Functions
unsigned long	__generic_copy_from_user (void *to, const void __user *from, unsigned long n)
	EXPORT_SYMBOL (__generic_copy_from_user)
unsigned long	__generic_copy_to_user (void __user *to, const void *from, unsigned long n)
	EXPORT_SYMBOL (__generic_copy_to_user)
unsigned long	__clear_user (void __user *to, unsigned long n)
	EXPORT_SYMBOL (__clear_user)

Function Documentation

unsigned long __clear_user	(	void __user *	mem,
		unsigned long	len
	)

__clear_user: - Zero a block of memory in user space, with less checking. : Destination address, in user space.
: 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.

Definition at line 110 of file uaccess.c.

unsigned long __generic_copy_from_user	(	void *	to,
		const void __user *	from,
		unsigned long	n
	)

Definition at line 10 of file uaccess.c.

unsigned long __generic_copy_to_user	(	void __user *	to,
		const void *	from,
		unsigned long	n
	)

Definition at line 62 of file uaccess.c.

EXPORT_SYMBOL

(

__generic_copy_from_user

)

EXPORT_SYMBOL

(

__generic_copy_to_user

)

EXPORT_SYMBOL

(

__clear_user

)