__clear_user9
Zero a block of memory in user space, with less checking.
Usage
unsigned long __clear_user(void __user * to, unsigned long n);
Arguments
to
Destination address, in user space.
n
Number of bytes to zero.
Overview
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.
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.