xref: /freebsd/share/man/man9/vm_map_insert.9 (revision d37ea99837e6ad50837fd9fe1771ddf1c3ba6002)
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26.\" $FreeBSD$
27.\"
28.Dd July 19, 2003
29.Dt vm_map_insert 9
30.Sh NAME
31.Nm vm_map_insert
32.Nd insert an object into a map
33.Sh SYNOPSIS
34.In sys/param.h
35.In vm/vm.h
36.In vm/vm_map.h
37.Ft int
38.Fn vm_map_insert "vm_map_t map" "vm_object_t object" "vm_ooffset_t offset" "vm_offset_t start" "vm_offset_t end" "vm_prot_t prot" "vm_prot_t max" "int cow"
39.Sh DESCRIPTION
40The
41.Fn vm_map_insert
42function inserts a mapping for the entire vm_object
43.Fa object
44into the target map
45.Fa map .
46.Pp
47The
48.Fa offset
49argument specifies the offset into the
50.Fa object
51at which to begin mapping.
52The object's size should match that of the specified address range.
53.Pp
54The
55.Fa start
56and
57.Fa end
58arguments specify the bounds of the mapped object's window in the
59address space of
60.Fa map .
61.Pp
62The
63.Fa cow
64argument specifies the flags which should be propagated to the new entry,
65for example, to indicate that this is a copy-on-write mapping.
66.Sh IMPLEMENTATION NOTES
67This function implicitly creates a new
68.Dv vm_map_entry
69by calling the internal function
70.Fn vm_map_entry_create .
71This function may use the
72.Dv Giant
73lock to ensure that only a single thread is present in the function.
74.Sh RETURN VALUES
75The
76.Fn vm_map_insert
77function returns
78.Dv KERN_SUCCESS
79if the mapping could be made successfully.
80.Pp
81Otherwise,
82.Dv KERN_INVALID_ADDRESS
83will be returned if the start of the range could not be found, or
84.Dv KERN_NO_SPACE
85if the range was found to be part of an existing entry or if it
86overlaps the end of the map.
87.Sh SEE ALSO
88.Xr vm_map 9
89.Sh AUTHORS
90This man page was written by
91.An Bruce M Simpson Aq bms@spc.org .
92