kcopy(9) - NetBSD Manual Pages

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KCOPY(9)               NetBSD Kernel Developer's Manual               KCOPY(9)


NAME
kcopy -- copy data with abort on page fault
SYNOPSIS
#include <sys/systm.h> int kcopy(const void *src, void *dst, size_t len);
DESCRIPTION
kcopy() copies len bytes from src to dst, aborting if a fatal page fault is encountered. kcopy() must save and restore the old fault handler since it is called by uiomove(9), which may be in the path of servicing a non-fatal page fault.
RETURN VALUES
kcopy() returns 0 on success and an error number on failure.
SEE ALSO
errno(2), memcpy(9), uiomove(9) NetBSD 9.0 April 6, 2017 NetBSD 9.0
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