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authormpp <mpp@FreeBSD.org>1997-03-22 22:21:37 +0000
committermpp <mpp@FreeBSD.org>1997-03-22 22:21:37 +0000
commit08751c4aec6de7fbcbdcd29644dfcbf0299dfe34 (patch)
treec6de788e3068b6bc2e7eca268974d0cde2aa2568 /share/man/man9
parent9d7600e50e4e6b323c5e9b3c6dbc71c51101bdd6 (diff)
downloadFreeBSD-src-08751c4aec6de7fbcbdcd29644dfcbf0299dfe34.zip
FreeBSD-src-08751c4aec6de7fbcbdcd29644dfcbf0299dfe34.tar.gz
Add vslock(9) to document the vslock() and vsunlock() kernel functions.
Obtained from: NetBSD
Diffstat (limited to 'share/man/man9')
-rw-r--r--share/man/man9/Makefile6
-rw-r--r--share/man/man9/vslock.970
2 files changed, 74 insertions, 2 deletions
diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile
index 6caf746..9ce078b 100644
--- a/share/man/man9/Makefile
+++ b/share/man/man9/Makefile
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.26 1997/03/22 21:31:26 mpp Exp $
+# $Id: Makefile,v 1.27 1997/03/22 22:06:05 mpp Exp $
MAN9= MD5.9 at_shutdown.9 at_fork.9 at_exit.9 boot.9 cd.9 copy.9 \
devfs_add_devswf.9 \
@@ -6,7 +6,8 @@ MAN9= MD5.9 at_shutdown.9 at_fork.9 at_exit.9 boot.9 cd.9 copy.9 \
panic.9 physio.9 psignal.9 \
resettodr.9 rtalloc.9 rtentry.9 scsiconf.9 sd.9 sleep.9 spl.9 st.9 \
store.9 style.9 time.9 timeout.9 uio.9 \
- vnode.9 vget.9 vput.9 vref.9 vrele.9 VOP_ABORTOP.9 VOP_ACCESS.9 \
+ vnode.9 vget.9 vput.9 vref.9 vrele.9 vslock.9 \
+ VOP_ABORTOP.9 VOP_ACCESS.9 \
VOP_ADVLOCK.9 VOP_ATTRIB.9 VOP_BLKATOFF.9 VOP_BWRITE.9 VOP_CREATE.9 \
VOP_FSYNC.9 VOP_GETPAGES.9 VOP_INACTIVE.9 VOP_IOCTL.9 VOP_LINK.9 \
VOP_LOCK.9 VOP_LOOKUP.9 VOP_MMAP.9 VOP_OPENCLOSE.9 \
@@ -38,6 +39,7 @@ MLINKS+= store.9 subyte.9 store.9 susword.9 store.9 suswintr.9 store.9 suword.9
MLINKS+= time.9 boottime.9 time.9 mono_time.9 time.9 runtime.9
MLINKS+= timeout.9 untimeout.9
MLINKS+= vref.9 VREF.9
+MLINKS+= vslock.9 vsunlock.9
MLINKS+= VOP_CREATE.9 VOP_MKNOD.9
MLINKS+= VOP_CREATE.9 VOP_MKDIR.9
MLINKS+= VOP_CREATE.9 VOP_SYMLINK.9
diff --git a/share/man/man9/vslock.9 b/share/man/man9/vslock.9
new file mode 100644
index 0000000..0b99942
--- /dev/null
+++ b/share/man/man9/vslock.9
@@ -0,0 +1,70 @@
+.\" $NetBSD: vslock.9,v 1.1 1996/06/15 20:47:29 pk Exp $
+.\"
+.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Paul Kranenburg.
+.\"
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the NetBSD
+.\" Foundation, Inc. and its contributors.
+.\" 4. Neither the name of The NetBSD Foundation nor the names of its
+.\" contributors may be used to endorse or promote products derived
+.\" from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 REGENTS 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.
+.\"
+.Dd Jun 15, 1996
+.Dt VSLOCK 9
+.Os FreeBSD
+.Sh NAME
+.Nm vslock ,
+.Nm vsunlock
+.Nd lock/unlock user space addresses in memory
+.Sh SYNOPSIS
+.Ft void
+.Fn vslock "caddr_t addr" "u_int len"
+.Ft void
+.Fn vsunlock "caddr_t addr" "u_int len"
+.Sh DESCRIPTION
+The
+.Fn vslock
+and
+.Fn vsunlock
+functions respectively lock and unlock a range of
+addresses belonging to the currently running process into memory.
+The actual amount of memory locked is a multiple of the machine's page size.
+The starting page number is computed by truncating
+.Fa addr
+to the nearest preceding page boundary, and by rounding up
+.Fa addr +
+.Fa len
+to the next page boundary.
+The process context to use for this operation is taken from the
+global variable
+.Va curproc .
+.Pp
+.\" .Sh SEE ALSO
+.\" .Xr physio 9
+.Sh BUGS
+The process pointer should be passed in as an argument.
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