Index: share/man/man5/tmpfs.5
===================================================================
--- share/man/man5/tmpfs.5
+++ share/man/man5/tmpfs.5
@@ -54,7 +54,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 17, 2017
+.Dd January 20, 2017
 .Dt TMPFS 5
 .Os
 .Sh NAME
@@ -77,30 +77,30 @@
 .Sh DESCRIPTION
 The
 .Nm
-driver implements in-memory, or
+driver implements an in-memory, or
 .Tn tmpfs
 file system.
 The filesystem stores both file metadata and data in main memory.
 This allows very fast and low latency accesses to the data.
 The data is volatile.
-An umount or system reboot invalidates it.
+A umount or system reboot invalidates it.
 These properties make the filesystem's mounts suitable for fast
-scratch storage, e.g.
+scratch storage, like
 .Pa /tmp .
 .Pp
 If the system becomes low on memory and swap is configured (see
 .Xr swapon 8 ),
-file data may be written to the swap space, freeing memory
+the system can transfer file data to swap space, freeing memory
 for other needs.
-The current implementation never swaps out metadata, including
-the directory content.
+Metadata, including the directory content, is never swapped out by the
+current implementation.
 Keep this in mind when planning the mount limits, especially when expecting
 to place many small files on a tmpfs mount.
 .Pp
-When a file from a tmpfs mount is mmaped (see
-.Xr mmap 2 )
-into the process address space, the swap VM object which manages the file
-pages is used to implement mapping and to avoid double-copying of
+When 
+.Xr mmap 2
+is used on a file from a tmpfs mount, the swap VM object managing the 
+file pages is used to implement mapping and avoid double-copying of
 the file data.
 This quirk causes process inspection tools, like
 .Xr procstat 1 ,
@@ -120,6 +120,10 @@
 .It Cm mode
 Specifies the mode (in octal notation) of the root inode of the file system.
 Defaults to the mount point's mode.
+.It Cm nonc
+Do not use namecache to resolve names to files for the created mount.
+This saves memory, but currently might impair scalability for highly
+used mounts on large machines.
 .It Cm inodes
 Specifies the maximum number of nodes available to the file system.
 If not specified, the file system chooses a reasonable maximum based on