1CLEAR_USER(9) Memory Management in Linux CLEAR_USER(9)
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4
NAME
6clear_user - Zero a block of memory in user space.
7
SYNOPSIS
9unsigned long clear_user(void __user * to, unsigned long n);
10
ARGUMENTS
12to
13Destination address, in user space.
1415
n
16Number of bytes to zero.
17
DESCRIPTION
19Zero a block of memory in user space.
2021
Returns number of bytes that could not be cleared. On success, this
22will be zero.
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COPYRIGHT
25Kernel Hackers Manual 2.6. November 2011 CLEAR_USER(9)