pmap_remove.9 revision 225736
Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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1. Redistributions of source code must retain the above copyright
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2. Redistributions in binary form must reproduce the above copyright
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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SUCH DAMAGE.
$FreeBSD: stable/9/share/man/man9/pmap_remove.9 157444 2006-04-03 21:17:36Z peter $
.Dd July 21, 2003 .Dt PMAP_REMOVE 9 .Os .Sh NAME .Nm pmap_remove , .Nm pmap_remove_all , .Nm pmap_remove_pages .Nd remove pages from a physical map .Sh SYNOPSIS n sys/param.h n vm/vm.h n vm/pmap.h .Ft void .Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" .Ft void .Fn pmap_remove_all "vm_page_t m" .Ft void .Fn pmap_remove_pages "pmap_t pmap" .Sh DESCRIPTION The .Fn pmap_remove function removes the range of addresses between .Fa sva and .Fa eva from the physical map .Fa pmap . If .Fa eva is less than .Fa sva , then the result is undefined. It is assumed that both .Fa sva and .Fa eva are page-aligned addresses.
Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$FreeBSD: stable/9/share/man/man9/pmap_remove.9 157444 2006-04-03 21:17:36Z peter $
.Dd July 21, 2003 .Dt PMAP_REMOVE 9 .Os .Sh NAME .Nm pmap_remove , .Nm pmap_remove_all , .Nm pmap_remove_pages .Nd remove pages from a physical map .Sh SYNOPSIS n sys/param.h n vm/vm.h n vm/pmap.h .Ft void .Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" .Ft void .Fn pmap_remove_all "vm_page_t m" .Ft void .Fn pmap_remove_pages "pmap_t pmap" .Sh DESCRIPTION The .Fn pmap_remove function removes the range of addresses between .Fa sva and .Fa eva from the physical map .Fa pmap . If .Fa eva is less than .Fa sva , then the result is undefined. It is assumed that both .Fa sva and .Fa eva are page-aligned addresses.
p The .Fn pmap_remove_all removes the physical page .Fa m from all physical maps in which it resides, and reflects back the modify bits to the appropriate pager.
p The .Fn pmap_remove_pages function removes all user pages from the physical map .Fa pmap . This function is called when a process exits to run down its address space more quickly than would be the case for calling .Fn pmap_remove . .Sh SEE ALSO .Fn pmap 9 .Sh AUTHORS This manual page was written by .An Bruce M Simpson Aq bms@spc.org .