1CLEAR_USER(9)             Memory Management in Linux             CLEAR_USER(9)
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NAME

6       clear_user - Zero a block of memory in user space.
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SYNOPSIS

9       unsigned long clear_user(void __user * to, unsigned long n);
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ARGUMENTS

12       to
13           Destination address, in user space.
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15       n
16           Number of bytes to zero.
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DESCRIPTION

19       Zero a block of memory in user space.
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21       Returns number of bytes that could not be cleared. On success, this
22       will be zero.
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25Kernel Hackers Manual 3.10         June 2019                     CLEAR_USER(9)
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