144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/* $NetBSD: tmpfs_specops.c,v 1.6 2005/12/11 12:24:29 christos Exp $ */
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/*
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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/*
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* tmpfs vnode interface for special devices.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: tmpfs_specops.c,v 1.6 2005/12/11 12:24:29 christos Exp $");
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#include <sys/param.h>
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#include <sys/vnode.h>
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#include <fs/tmpfs/tmpfs.h>
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#include <fs/tmpfs/tmpfs_specops.h>
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/* --------------------------------------------------------------------- */
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/*
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* vnode operations vector used for special devices stored in a tmpfs
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* file system.
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*/
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int (**tmpfs_specop_p)(void *);
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const struct vnodeopv_entry_desc tmpfs_specop_entries[] = {
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{ &vop_default_desc, vn_default_error },
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{ &vop_lookup_desc, tmpfs_spec_lookup },
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{ &vop_create_desc, tmpfs_spec_create },
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{ &vop_mknod_desc, tmpfs_spec_mknod },
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{ &vop_open_desc, tmpfs_spec_open },
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{ &vop_close_desc, tmpfs_spec_close },
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{ &vop_access_desc, tmpfs_spec_access },
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{ &vop_getattr_desc, tmpfs_spec_getattr },
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{ &vop_setattr_desc, tmpfs_spec_setattr },
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{ &vop_read_desc, tmpfs_spec_read },
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{ &vop_write_desc, tmpfs_spec_write },
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{ &vop_ioctl_desc, tmpfs_spec_ioctl },
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{ &vop_fcntl_desc, tmpfs_spec_fcntl },
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{ &vop_poll_desc, tmpfs_spec_poll },
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{ &vop_kqfilter_desc, tmpfs_spec_kqfilter },
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{ &vop_revoke_desc, tmpfs_spec_revoke },
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{ &vop_mmap_desc, tmpfs_spec_mmap },
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{ &vop_fsync_desc, tmpfs_spec_fsync },
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{ &vop_seek_desc, tmpfs_spec_seek },
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{ &vop_remove_desc, tmpfs_spec_remove },
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{ &vop_link_desc, tmpfs_spec_link },
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{ &vop_rename_desc, tmpfs_spec_rename },
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{ &vop_mkdir_desc, tmpfs_spec_mkdir },
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{ &vop_rmdir_desc, tmpfs_spec_rmdir },
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{ &vop_symlink_desc, tmpfs_spec_symlink },
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{ &vop_readdir_desc, tmpfs_spec_readdir },
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{ &vop_readlink_desc, tmpfs_spec_readlink },
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{ &vop_abortop_desc, tmpfs_spec_abortop },
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{ &vop_inactive_desc, tmpfs_spec_inactive },
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{ &vop_reclaim_desc, tmpfs_spec_reclaim },
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{ &vop_lock_desc, tmpfs_spec_lock },
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{ &vop_unlock_desc, tmpfs_spec_unlock },
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{ &vop_bmap_desc, tmpfs_spec_bmap },
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{ &vop_strategy_desc, tmpfs_spec_strategy },
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{ &vop_print_desc, tmpfs_spec_print },
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{ &vop_pathconf_desc, tmpfs_spec_pathconf },
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{ &vop_islocked_desc, tmpfs_spec_islocked },
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{ &vop_advlock_desc, tmpfs_spec_advlock },
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{ &vop_lease_desc, tmpfs_spec_lease },
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{ &vop_bwrite_desc, tmpfs_spec_bwrite },
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{ &vop_getpages_desc, tmpfs_spec_getpages },
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{ &vop_putpages_desc, tmpfs_spec_putpages },
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{ NULL, NULL }
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};
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const struct vnodeopv_desc tmpfs_specop_opv_desc =
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{ &tmpfs_specop_p, tmpfs_specop_entries };
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/* --------------------------------------------------------------------- */
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int
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tmpfs_spec_close(void *v)
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{
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struct vnode *vp = ((struct vop_close_args *)v)->a_vp;
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int error;
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tmpfs_update(vp, NULL, NULL, UPDATE_CLOSE);
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error = VOCALL(spec_vnodeop_p, VOFFSET(vop_close), v);
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return error;
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}
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/* --------------------------------------------------------------------- */
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int
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tmpfs_spec_read(void *v)
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{
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struct vnode *vp = ((struct vop_read_args *)v)->a_vp;
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VP_TO_TMPFS_NODE(vp)->tn_status |= TMPFS_NODE_ACCESSED;
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return VOCALL(spec_vnodeop_p, VOFFSET(vop_read), v);
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}
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/* --------------------------------------------------------------------- */
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int
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tmpfs_spec_write(void *v)
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{
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struct vnode *vp = ((struct vop_write_args *)v)->a_vp;
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VP_TO_TMPFS_NODE(vp)->tn_status |= TMPFS_NODE_MODIFIED;
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return VOCALL(spec_vnodeop_p, VOFFSET(vop_write), v);
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}
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