2 .\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
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26 .\" $FreeBSD: src/share/man/man9/vm_map_findspace.9,v 1.5.22.1.4.1 2010/06/14 02:09:06 kensmith Exp $
29 .Dt VM_MAP_FINDSPACE 9
33 .Nd find a free region within a map
40 .Fa "vm_map_t map" "vm_offset_t start" "vm_size_t length" "vm_size_t align" "int flags" "vm_offset_t *addr"
45 function attempts to find a region with sufficient space in the
53 The flags parameter can be:
54 .Bl -tag -width ".Fa flags"
56 The space returned is for stack regions and can intersect the stack address
59 .Sh IMPLEMENTATION NOTES
60 It is the caller's responsibility to obtain a lock on the
62 before calling this function.
66 to grow the kernel's address space, if and only if the mapping is being
67 made within the kernel address space, and if insufficient space remains
73 function returns the value 0 if successful, and
75 will contain the first virtual address in the found region;
76 otherwise, the value 1 is returned.
78 This manual page was written by
79 .An Bruce M Simpson Aq Mt bms@spc.org .