munlockall

MUNLOCKALL(2)		  Linux Programmer’s Manual		MUNLOCKALL(2)



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 sev-
       eral  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)



Linux 1.3.43			  1995-11-26			MUNLOCKALL(2)