2007-06-16 01:56:05 +00:00
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/* $NetBSD: tmpfs_vnops.h,v 1.7 2005/12/03 17:34:44 christos Exp $ */
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2008-09-03 18:53:48 +00:00
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/*-
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2017-11-27 15:15:37 +00:00
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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2007-06-16 01:56:05 +00:00
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* Copyright (c) 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Julio M. Merino Vidal, developed as part of Google's Summer of Code
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* 2005 program.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _FS_TMPFS_TMPFS_VNOPS_H_
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#define _FS_TMPFS_TMPFS_VNOPS_H_
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#if !defined(_KERNEL)
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#error not supposed to be exposed to userland.
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#endif
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/*
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* Declarations for tmpfs_vnops.c.
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*/
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extern struct vop_vector tmpfs_vnodeop_entries;
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2017-01-19 19:46:49 +00:00
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extern struct vop_vector tmpfs_vnodeop_nonc_entries;
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2007-06-16 01:56:05 +00:00
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vop_access_t tmpfs_access;
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2020-07-25 10:38:44 +00:00
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vop_fplookup_vexec_t tmpfs_fplookup_vexec;
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2020-08-07 23:07:47 +00:00
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vop_stat_t tmpfs_stat;
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2007-06-16 01:56:05 +00:00
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vop_getattr_t tmpfs_getattr;
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vop_setattr_t tmpfs_setattr;
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Rework pathconf handling for FIFOs.
On the one hand, FIFOs should respect other variables not supported by
the fifofs vnode operation (such as _PC_NAME_MAX, _PC_LINK_MAX, etc.).
These values are fs-specific and must come from a fs-specific method.
On the other hand, filesystems that support FIFOs are required to
support _PC_PIPE_BUF on directory vnodes that can contain FIFOs.
Given this latter requirement, once the fs-specific VOP_PATHCONF
method supports _PC_PIPE_BUF for directories, it is also suitable for
FIFOs permitting a single VOP_PATHCONF method to be used for both
FIFOs and non-FIFOs.
To that end, retire all of the FIFO-specific pathconf methods from
filesystems and change FIFO-specific vnode operation switches to use
the existing fs-specific VOP_PATHCONF method. For fifofs, set it's
VOP_PATHCONF to VOP_PANIC since it should no longer be used.
While here, move _PC_PIPE_BUF handling out of vop_stdpathconf() so that
only filesystems supporting FIFOs will report a value. In addition,
only report a valid _PC_PIPE_BUF for directories and FIFOs.
Discussed with: bde
Reviewed by: kib (part of a larger patch)
MFC after: 1 month
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D12572
2017-12-19 22:39:05 +00:00
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vop_pathconf_t tmpfs_pathconf;
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2017-09-25 20:26:16 +00:00
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vop_print_t tmpfs_print;
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2007-06-16 01:56:05 +00:00
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vop_reclaim_t tmpfs_reclaim;
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#endif /* _FS_TMPFS_TMPFS_VNOPS_H_ */
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