diff options
author | asmodai <asmodai@FreeBSD.org> | 2001-02-06 09:04:52 +0000 |
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committer | asmodai <asmodai@FreeBSD.org> | 2001-02-06 09:04:52 +0000 |
commit | 95353f0060b798434bbab372cb00dad3445b0dd8 (patch) | |
tree | b3b773baa9f2f5bddfb7208a12598ceb695eec43 /share/man/man9/vcount.9 | |
parent | 83ab63b5393f0750f4c7b2d3b450d41870e77505 (diff) | |
download | FreeBSD-src-95353f0060b798434bbab372cb00dad3445b0dd8.zip FreeBSD-src-95353f0060b798434bbab372cb00dad3445b0dd8.tar.gz |
Add vcount.9 / count_dev.9.
Touched up a bit and added some consistency to the text by your's truly.
PR: 23745
Submitted by: Andrew Stevenson <andrew@ugh.net.au>
Diffstat (limited to 'share/man/man9/vcount.9')
-rw-r--r-- | share/man/man9/vcount.9 | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/share/man/man9/vcount.9 b/share/man/man9/vcount.9 new file mode 100644 index 0000000..a83fb7c --- /dev/null +++ b/share/man/man9/vcount.9 @@ -0,0 +1,68 @@ +.\" -*- nroff -*- +.\" +.\" Copyright (c) 2000 Andrew Stevenson +.\" +.\" All rights reserved. +.\" +.\" This program is free software. +.\" +.\" 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 DEVELOPERS ``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 DEVELOPERS 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. +.\" +.\" If this man page travels to places exotic (like projects other than +.\" FreeBSD) I would love to hear about it. +.\" Andrew <andrew@ugh.net.au> +.\" +.\" $FreeBSD$ +.\" +.Dd February 6th, 2001 +.Os +.Dt VCOUNT 9 +.Sh NAME +.Nm vcount , +.Nm count_dev +.Nd get total number of references to a device. +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <sys/conf.h> +.Fd #include <sys/vnode.h> +.Ft int +.Fn vcount "struct vnode *vp" +.Ft int +.Fn count_dev "dev_t dev" +.Sh DESCRIPTION +.Fn vcount +is used to get the number of references to a particular device. +It allows for the fact that multiple vnodes may reference the same device. +.Fn count_dev +does the same thing as vcount, +but takes a dev_t rather than a vnode pointer as an argument. +.Sh RETURN VALUES +.Fn vcount +and +.Fn count_dev +both return the number of references to the device. +.Sh SEE ALSO +.Xr VFS 9 , +.Xr vnode 9 , +.Pa src/sys/kern/vfs_subr.c +.Sh AUTHORS +This man page was written by +.An Andrew Stevenson . |