Remove workaround for ancient HTML generation code.

New sentence, new line.
Use more macros.
Bump date for previous.

Enhance disk metrics by calculating a weighted sum that is incremented
by the number of concurrent I/O requests. Also introduce a new disk_wait()
function to measure requests waiting in a bufq.
iostat -y now reports data about waiting and active requests.

So far only drivers using dksubr and dk, ccd, wd and xbd collect data about
waiting requests.

Fix typo: s/openes/opens

branches: 1.42.2;
Fix xref.

Add d_label and add a few words to minphys and strategy.

Update disk man page for other users of the disk driver switch and
add reference to dksubr(9).

branches: 1.40.2;
Retire disk_blocksize().

Use more markup. Bump date for previous.

document missing disk_set_info function that maintains the device's
"disk-info" dictionary.

Implement DIOCGMEDIASIZE and DIOCGSECTORSIZE from FreeBSD.

branches: 1.36.24;
Remove boilerplate in CODE REFERENCES on file paths.
Describe in intro(9) how to read paths in the CODE REFERENCES section.

branches: 1.35.2;
Add missing dot.

mdoclint

Mention problems which disk api have with concurrent usage remove splbio
line from man page because it is not true anymore, mention disk_isbusy and
add dm driver to references.

Punctuation nit and typo fix.

Describe disk_begindetach(9).

Don't indent struct dkbad with tab, the rest of the man page doesn't do
that either.

Fix typo and stray line in previous.

Minimal documentation for disk-related ioctls; mostly derived from
comments in sys/dkio.h

branches: 1.27.6;
update disk.9 manpage to current reality
- add disk_init() (from vmlocking merge)
- add disk_destroy() (from vmlocking merge)
- remove disk_resetstat() (was removed)
- update structure defs
- update examples (ANSI, const, device_t etc)

branches: 1.26.10; 1.26.12;
Use Dv for defined values.

Document disk_blocksize(9).

u_intN_t -> uintN_t

remove disk_init which we don't have anymore.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

The correct capitalisation of 'NetBSD.org' is (you
guessed it) 'NetBSD.org'.

some mdoc fixes.

"Utilize" has exactly the same meaning as "use," but it is more
difficult to read and understand. Most manuals of English style
therefore say that you should use "use".

Sync with reality; The struct disk has been extended to have
separate read/write disk statistics. Pointed out by itohy.

New sentence, new line.

Generate <>& symbolically. I'm avoiding .../dist/... directories for now.

Sort sections.

No point in using __P in prototype declarations in man pages.

Use standard section headers.

Fix typos, punctuation and whitespace.

fix typo

in foo_softc example, actual struct device, not a pointer to one

branches: 1.10.8;
More .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

Eliminate extra comma in SEE ALSO section

Changed references to filesystem paths to use the mdoc filesystem path
macro (.Pa).

Add David Brownlee's new intro pages, with editing. (PR #534[23])
Also, while here, expand apparently incorrectly .Dd month abbreviations.
(I thought about doing this in tmac/doc-common...heh...that would have
allowed a possible reverse map back to abbreviations.)

macroize BSD, NetBSD, FreeBSD and misc cleanup

add missing .Nm sections

branches: 1.4.4;
Correct a typo: sc_dk in a softc structure should be a struct disk, not
a struct disk *, at least as used in the example.

Fix spelling.

fix typo; Reported by David Leonard <s160828@student.uq.edu.au> in PR #2307.

Manual page describing the new generic disk framework.