Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

umtx: allow to configure minimal timeout (in nanoseconds)

PR: 270785
Reviewed by: markj, mav
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39584

libthr(3): explain some internals of the locks implementation

Describe internal allocations, mention problems with the use of global
malloc(3) and the reasons for internal allocator existence.

Document shared objects implementation and describe shortcomings of the
chosen approach, as well as the rationale why it was done that way.

Reviewed by: markj
Discussed with: jilles
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential revision: https://reviews.freebsd.org/D32243

Add HISTORY sections to document when this
functionality first appeared in FreeBSD.

Submitted by: Gordon Bergling gbergling_gmail.com
Approved by: bcr
Differential Revision: https://reviews.freebsd.org/D24677

Fix markup.

Sponsored by: The FreeBSD Foundation

Remove non-history libkse references and fix PTHREAD_PROCESSES_PRIVATE typo.

Document _umtx_op(2) interface for the implementation of robust mutexes.
In libthr(3), list added knobs.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D6427

libthr(3): Fix xref to _umtx_op(2) now that we have it.

errno(3) -> errno(2)

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Update libthr(3) man page to reflect the work done to support dlopen.

Noted and reviewed by: bdrewery
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

Fix description of mutex acquisition.

Reviewed by: kib
X-MFC with: r272070
Sponsored by: Nginx, Inc.

Expand the libthr(3) manpage to document knobs accepted by libthr.so
and explain some internal working of the library, neccessary to
understand the knobs effects.

Reviewed by: bjk, pluknet
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks

use .Mt to mark up email addresses consistently (part3)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

- Stop calling libthr alternative as it's now the default
threading library.

- Now that libpthread is a symlink, it's no longer possible
to link applications with libpthread and have libmap.conf(5)
select the desired threading library; applications will be
linked to the default threading library, libkse or libthr.
Remove an obsolete paragraph.

- Mention that improvements can be seen compared to libkse.

Reviewed by: deischen, davidxu

Markup fixes.

Approved by: re

Remove incorrect BUGS entry: libthr does support process-scope thread
scheduling.

MFC after: 1 week
Submitted by: davidxu
Approved by: re (scottl)

Add a stub libthr(3) man page to document what it is and why, as well as
to point at libmap.conf(5). This will help answer questions about what
and why it is, although not in great detail.

Approved by: re (scottl)
MFC after: 1 week
MFC note: When MFC'd, don't MFC mention of work not yet MFC'd.