UFFDIO_UNREGISTER(2const) UFFDIO_UNREGISTER(2const)
UFFDIO_UNREGISTER - unregister a memory address range from
userfaultfd
Standard C library (libc, -lc)
#include <linux/userfaultfd.h> /* Definition of UFFD* constants */
#include <sys/ioctl.h>
int ioctl(int fd, UFFDIO_UNREGISTER, const struct uffdio_range *argp);
Unregister a memory address range from userfaultfd. The pages in
the range must be “compatible” (see UFFDIO_REGISTER(2const)).
On success, 0 is returned. On error, -1 is returned and errno is
set to indicate the error.
EINVAL Either argp->start or the argp->len fields was not a
multiple of the system page size; or the argp->len field
was zero; or these fields were otherwise invalid.
EINVAL There as an incompatible mapping in the specified address
range.
EINVAL There was no mapping in the specified address range.
Linux.
Linux 4.3.
See userfaultfd(2).
ioctl(2), ioctl_userfaultfd(2), UFFDIO_REGISTER(2const),
userfaultfd(2)
linux.git/Documentation/admin-guide/mm/userfaultfd.rst
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Linux man-pages 6.9.1 2024-06-14 UFFDIO_UNREGISTER(2const)
Pages that refer to this page: ioctl_userfaultfd(2), UFFDIO_REGISTER(2const)