Updated: man-pages-linux 6.16 - Linux manual pages

[Cygwin Linux Man Pages Maintainer]

Documents the Linux kernel system calls and C library interfaces used
by programs, plus system and administrative utilities, devices, file
system, file, and data formats, and related information.

For more information, see the project home page:

	https://kernel.org/doc/man-pages/

As Cygwin has its own man pages with some conflicts, these man pages are
installed under /usr/share/man/man-pages-linux/, so by default searching
or viewing these pages requires the option:

	$ apropos -m|--systems man-pages-linux ...
	$ man -m|--systems man-pages-linux ...

Cygwin man pages are under the default system "man", so for convenience
both systems may be specified separated by comma e.g.

	$ man -m man,man-pages-linux ...

The path or option may also be added explicitly to a user's MANPATH or
alias e.g.

	$ export MANPATH=$MANPATH:/usr/share/man/man-pages-linux

	$ alias apropos='apropos -m man,man-pages-linux'
	$ alias man='man -m man,man-pages-linux'

Add -a to show both Cygwin and Linux (and POSIX if companion package
man-pages-posix is also installed) manual pages.

For convenience and backward compatibility /usr/share/man/linux is
provided as a symlink. 

If you prefer to see Linux man pages over Cygwin man pages, then use
-m|--systems linux in the examples above, or add -m linux to a command.

Release 6 and later added some section 2 and 3 pages suffixed by const,
head, or type installed in the base section directories.

The following package has been upgraded in the Cygwin distribution:

- man-pages-linux	6.16

For recent changes, see below, or after installation read
/usr/share/doc/man-pages-linux/Changes:


2025-10-29	6.16

New and rewritten pages

man2/
	fsconfig.2
	fsmount.2
	fsopen.2
	fspick.2
	move_mount.2
	open_tree.2

man2const/
	PR_FUTEX_HASH_GET_SLOTS.2const
	PR_FUTEX_HASH_SET_SLOTS.2const

man2type/
	mount_attr.2type			(split from mount_setattr(2))

man3/
	_Fork.3
	countof.3
	memeq.3
	streq.3

Newly documented interfaces in existing pages

man2/
	mount_setattr.2
		glibc wrapper

	pidfd_open.2
		PIDFD_THREAD

	pidfd_send_signal.2
		PIDFD_SIGNAL_THREAD
		PIDFD_SIGNAL_THREAD_GROUP
		PIDFD_SIGNAL_PROCESS_GROUP

	quotactl.2
		quotactl_fd(2)

	readv.2
		RWF_DONTCACHE

	sigaction.2
		SI_ASYNCNL
		FPE_FLTUNK
		FPE_CONDTRAP
		SEGV_ACCADI
		SEGV_ADIDERR
		SEGV_ADIPERR
		SEGV_MTEAERR
		SEGV_MTESERR
		SEGV_CPERR
		TRAP_UNK
		TRAP_PERF
		SYS_USER_DISPATCH
		EMT_TAGOVF

man3/
	abs.3
		umaxabs(3)

	opendir.3
		ENAMETOOLONG

man7/
	operator.7
		(type){}
		alignof
		_Countof

	rtnetlink.7
		RTAX_UNSPEC
		RTAX_LOCK
		RTAX_MTU
		RTAX_WINDOW
		RTAX_RTT
		RTAX_RTTVAR
		RTAX_SSTHRESH
		RTAX_CWND
		RTAX_ADVMSS
		RTAX_REORDERING
		RTAX_HOPLIMIT
		RTAX_INITCWND
		RTAX_FEATURES
		RTAX_RTO_MIN
		RTAX_INITRWND
		RTAX_QUICKACK
		RTAX_CC_ALGO
		RTAX_FASTOPEN_NO_COOKIE

	sched.7
		CONFIG_PREEMPT
		CONFIG_PREEMPT_LAZY

	tcp.7
		TCP_SAVE_SYN
		TCP_SAVED_SYN

New and changed links

man2/
	open_tree_attr.2			(open_tree(2))
	quotactl_fd.2				(quotactl(2))
man3/
	umaxabs.3				(abs(3))

Global changes

-  man/
   -  Update documentation for POSIX.1-2024 (still more work to do).
   -  SYNOPSIS: Use GNU forward-declarations of parameters for sizes of
      array parameters.
   -  Improve style of source code for tbl(1) tables.
   -  man2/: Use the common name 'fd' instead of 'fildes'.
   -  Use semantic newlines.
   -  EXAMPLES
      -  Use err(3) and errc(3bsd) instead of similar macros.
      -  Fix includes (thanks to iwyu(1)).
      -  Use NITEMS() consistently.
      -  Don't name unused parameters.
-  share/mk/
   -  Add support for the chapter man3attr.
   -  help: Document the usual targets.
   -  lint-man-blank: Add target to lint about blank lines.
   -  lint-man-ws: Diagnose spurious use of white space.
   -  lint-man-quote: Diagnose an unmatched quote.
   -  lint-man-poems: Diagnose (lack of) semantic newlines.
   -  lint-man-dash: Diagnose unescaped dashes
   -  Merge handling of man(7) and mdoc(7) pages.
   -  lint, build, check: Move exceptions to separate files.
   -  Remove unused variables.
   -  Unify local variable names.
   -  Silence diagnostics about unnamed parameters.
   -  configure/build-depends/:
      -  Add awk/awk.
      -  Add pcre2-utils/pcre2grep.

Changes to individual files

-  src/bin/
   -  sortman(1): Fix order of intro(*) pages for subsections.
   -  diffman-git(1): Show sections as hunk context.

The manual pages and other files in the repository have been improved
beyond what this changelog covers.
To learn more about changes applied to individual pages, or the authors
of changes, use git(1).