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.\" $FreeBSD: head/share/man/man9/vm_map_madvise.9 267936 2014-06-26 21:44:30Z bapt $
.\"
.Dd July 19, 2003
.Dt VM_MAP_MADVISE 9
.Os
.Sh NAME
.Nm vm_map_madvise
.Nd apply advice about use of memory to map entries
.Sh SYNOPSIS
.In sys/param.h
.In vm/vm.h
.In vm/vm_map.h
.Ft int
.Fo vm_map_madvise
.Fa "vm_map_t map" "vm_offset_t start" "vm_offset_t end" "int behav"
.Fc
.Sh DESCRIPTION
The
.Fn vm_map_madvise
function applies the flags
.Fa behav
to the entries within
.Fa map
between
.Fa start
and
.Fa end .
.Pp
Advisories are classified as either those affecting the
.Vt vm_map_entry
structure, or those affecting the underlying objects.
.Pp
The
.Fn vm_map_madvise
function is used by the
.Xr madvise 2
system call.
.Sh RETURN VALUES
The
.Fn vm_map_madvise
function returns 0 if successful.
If the
.Fa behav
argument was not recognised,
.Dv KERN_INVALID_ARGUMENT
is returned.
.Sh SEE ALSO
.Xr madvise 2 ,
.Xr vm_map 9
.Sh AUTHORS
This manual page was written by
.An Bruce M Simpson Aq Mt bms@spc.org .