Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove stale link.

PR: 151252

Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages. Minor corrections by me.

Submitted by: Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>

Correct a typo (when we talk about offset, it should
be offset, not size).

Submitted by: pluknet at gmail com

Expose stripe offset and stripe size through libgeom and geom(8) userland
utilities.

Reviewed by: pjd, mav (earlier version)

- Update the libgeom manpage with a description of g_device_path and
g_providername utility functions.

Approved by: kib (mentor)

Fix spelling.

PR: docs/124561
Submitted by: Sam Banks

Use 'dowrite' as an argument name instead of too general 'write'.

Implement and document some utility functions that can be used to communicate
with GEOM providers.

OK'ed by: phk

Fix prototype.

Markup, grammar, punctuation.

Add manpages for the gctl API.

Submitted by: le
Tweaks by: phk

The .Fn function

mdoc(7) police: Scheduled sweep.

Fix some mdoc issues: add .Nd to NAME section, use valid .Lb argument,
use .Fn there appropriate

Add libgeom to the system.

Initially this only contains the functions for accessing the I/O
statistics data.