src/lib/libc/sys/pathconf.2, branch releng/14.0

Remove $FreeBSD$: one-line nroff pattern

2023-08-16T17:55:15+00:00

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

Fix pathconf.2 documentation error

2021-08-06T23:09:57+00:00

_PC_MIN_HOLE_SIZE and _PC_DEALLOC_PRESENT were mixed somehow before this
fix.

Sponsored by:	The FreeBSD Foundation
Reviewed by:	delphij
Differential Revision:	https://reviews.freebsd.org/D31436

Add fspacectl(2), vn_deallocate(9) and VOP_DEALLOCATE(9).

2021-08-05T15:20:42+00:00

fspacectl(2) is a system call to provide space management support to
userspace applications. VOP_DEALLOCATE(9) is a VOP call to perform the
deallocation. vn_deallocate(9) is a public KPI for kmods' use.

The purpose of proposing a new system call, a KPI and a VOP call is to
allow bhyve or other hypervisor monitors to emulate the behavior of SCSI
UNMAP/NVMe DEALLOCATE on a plain file.

fspacectl(2) comprises of cmd and flags parameters to specify the
space management operation to be performed. Currently cmd has to be
SPACECTL_DEALLOC, and flags has to be 0.

fo_fspacectl is added to fileops.
VOP_DEALLOCATE(9) is added as a new VOP call. A trivial implementation
of VOP_DEALLOCATE(9) is provided.

Sponsored by:	The FreeBSD Foundation
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D28347

Document EINTEGRITY errors for many system calls.

2020-03-30T21:44:00+00:00

EINTEGRITY was previously documented as a UFS-specific error for
mount(2).  This documents EINTEGRITY as a filesystem-independent error
that may be reported by the backing store of a filesystem.

While here, document EIO as a filesystem-independent error for both
mount(2) and posix_fadvise(2).  EIO was previously only documented for
UFS for mount(2).

Reviewed by:	mckusick
Suggested by:	mckusick
MFC after:	2 weeks
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D24168

Renumber copyright clause 4

2017-02-28T23:42:47+00:00

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann 
Pull Request:	https://github.com/freebsd/freebsd/pull/96

General mdoc(7) and typo fixes.

2012-05-08T18:56:21+00:00

PR:		167713
Submitted by:	Nobuyuki Koganemaru (kogane!jp.freebsd.org)

Remove trailing whitespace per mdoc lint warning

2012-03-29T05:02:12+00:00

Disussed with:	gavin
No objection from:	doc
Approved by:	joel
MFC after:	3 days

Remove superfluous paragraph macro.

2012-03-25T12:13:24+00:00

mdoc: make pages render with mandoc

2010-10-21T12:27:13+00:00

It's a bit more pedantic regarding .Bl list elements. This has an added
benefit of unbreaking the ipfw(8) manpage, where groff was silently
skipping one list element.

There is an optimization in chmod(1), that makes it not to call chmod(2)

2009-07-08T15:23:18+00:00

if the new file mode is the same as it was before; however, this
optimization must be disabled for filesystems that support NFSv4 ACLs.
Chmod uses pathconf(2) to determine whether this is the case - however,
pathconf(2) always follows symbolic links, while the 'chmod -h' doesn't.

This change adds lpathconf(3) to make it possible to solve that problem
in a clean way.

Reviewed by:	rwatson (earlier version)
Approved by:	re (kib)