2 .\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 .Nm vm_map_lookup_done
34 .Nd lookup the vm_object backing a given virtual region
41 .Fa "vm_map_t *var_map" "vm_offset_t vaddr" "vm_prot_t fault_type"
42 .Fa "vm_map_entry_t *out_entry" "vm_object_t *object" "vm_pindex_t *pindex"
43 .Fa "vm_prot_t *out_prot" "boolean_t *wired"
46 .Fn vm_map_lookup_done "vm_map_t map" "vm_map_entry_t entry"
50 function attempts to find the
52 page index and protection, for the given virtual address
56 assuming a page fault of the type
60 Return values are guaranteed until
61 .Fn vm_map_lookup_done
62 is called to release the lock.
63 .Sh IMPLEMENTATION NOTES
66 acquires a read-lock on the map
68 but does not release it.
69 The caller should invoke
70 .Fn vm_map_lookup_done
71 in order to release this lock.
83 arguments appropriately for the hypothetical page fault.
87 This manual page was written by
88 .An Bruce M Simpson Aq bms@spc.org .