munlockall(2) -- Linux man page
NAME
munlockall - reenable paging for calling process
SYNOPSIS
#include <sys/mman.h>
int munlockall(void);
DESCRIPTION
munlockall
reenables paging for all pages mapped into the address space of the
calling process.
Memory locks do not stack, i.e., pages which have been locked several times
by calls to
mlock
or
mlockall
will be unlocked by a single call to
munlockall.
Pages which are mapped to several locations or by several processes stay
locked into RAM as long as they are locked at least at one location or by
at least one process.
On POSIX systems on which
mlockall
and
munlockall
are available,
_POSIX_MEMLOCK
is defined in
<unistd.h> .
RETURN VALUE
On success,
munlockall
returns zero. On error, -1 is returned and
errno
is set appropriately.
CONFORMING TO
POSIX.1b, SVr4
SEE ALSO
mlockall(2),
mlock(2),
munlock(2)
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