Improve descriptions for tmpfs mount options. The descriptions have

been mostly obtained from NetBSD mount_tmpfs(8) manual page.

Obtained from:	NetBSD
Discussed with:	delphij

1 files changed, 44 insertions, 8 deletions

diff --git a/share/man/man5/tmpfs.5 b/share/man/man5/tmpfs.5
index 7cc9654..30db116 100644
--- a/share/man/man5/tmpfs.5
+++ b/share/man/man5/tmpfs.5
@@ -1,4 +1,4 @@
-.\"
+.\"-
 .\" Copyright (c) 2007 Xin LI
 .\" All rights reserved.
 .\"
@@ -22,9 +22,34 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
+.\"-
+.\" Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
+.\" 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 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 FOUNDATION 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.
+.\"
 .\" $FreeBSD$
 .\"
-.Dd January 29, 2010
+.Dd February 16, 2010
 .Dt TMPFS 5
 .Os
 .Sh NAME
@@ -59,17 +84,28 @@ mounting
 file systems:
 .Bl -tag -width indent
 .It Cm gid
-root group id.
+Specifies the group ID of the root inode of the file system.
+Defaults to the mount point's GID.
 .It Cm uid
-root user id.
+Specifies the user ID of the root inode of the file system.
+Defaults to the mount point's UID.
 .It Cm mode
-permissions in octal format.
+Specifies the mode (in octal notation) of the root inode of the file system.
+Defaults to the mount point's mode.
 .It Cm inodes
-maximum number of inodes.
+Specifies the maximum number of nodes available to the file system.
+If not specified, the file system chooses a reasonable maximum based on
+the file system size, which can be limited with the
+.Cm size
+option.
 .It Cm size
-maximum size (in bytes) for the file system.
+Specifies the total file system size in bytes.
+If zero (the default) or a value larger than SIZE_MAX - PAGE_SIZE
+is given, the available amount of memory (including
+main memory and swap space) will be used.
 .It Cm maxfilesize
-maximum file size (in bytes).
+Specifies the maximum file size in bytes.
+Defaults to the maximum possible value.
 .El
 .Sh EXAMPLES
 To mount a