Date: Fri, 24 Oct 2025 18:38:10 GMT From: Mateusz Piotrowski <0mp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: daa6660f8993 - main - deadfs.9: Document Message-ID: <202510241838.59OIcAS5077615@gitrepo.freebsd.org>
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The branch main has been updated by 0mp: URL: https://cgit.FreeBSD.org/src/commit/?id=daa6660f899309f832bba0c7ac72dada125cfed5 commit daa6660f899309f832bba0c7ac72dada125cfed5 Author: Mateusz Piotrowski <0mp@FreeBSD.org> AuthorDate: 2025-10-24 18:08:31 +0000 Commit: Mateusz Piotrowski <0mp@FreeBSD.org> CommitDate: 2025-10-24 18:35:15 +0000 deadfs.9: Document Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D53334 --- share/man/man9/Makefile | 1 + share/man/man9/deadfs.9 | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile index 52ec9be3ae02..80fd8e198a5b 100644 --- a/share/man/man9/Makefile +++ b/share/man/man9/Makefile @@ -90,6 +90,7 @@ MAN= accept_filter.9 \ DECLARE_MODULE.9 \ DEFINE_IFUNC.9 \ DELAY.9 \ + deadfs.9 \ devclass.9 \ devclass_find.9 \ devclass_get_device.9 \ diff --git a/share/man/man9/deadfs.9 b/share/man/man9/deadfs.9 new file mode 100644 index 000000000000..360451266625 --- /dev/null +++ b/share/man/man9/deadfs.9 @@ -0,0 +1,36 @@ +.\" +.\" SPDX-License-Identifier: BSD-2-Clause +.\" +.\" Copyright (c) 2025 Mateusz Piotrowski <0mp@FreeBSD.org> +.\" +.Dd October 24, 2025 +.Dt DEADFS 9 +.Os +.Sh NAME +.Nm deadfs +.Nd pseudo-filesystem to own reclaimed vnodes +.Sh DESCRIPTION +The +.Nm +file system implements operations that do not modify any data +and instead return indications of invalid IO. +Its role is to provide a fallback vnode operations vector for reclaimed +.Xr vnode 9 Ap s . +.Pp +It is a kernel-only pseudo-file system and so cannot be mounted from userspace. +.Sh SEE ALSO +.Xr insmntque 9 , +.Xr vnode 9 , +.Xr VOP_RECLAIM 9 +.Sh HISTORY +UNIX System Manager's Manual (SMM) for +.Bx 4.4 +described +.Nm +as a file system +.Dq where rejected vnods go to die . +.Sh AUTHORS +The +.Nm +manual page was written by +.An Mateusz Piotrowski Aq Mt 0mp@FreeBSD.org .home | help
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