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NetBSD/sys/fs/tmpfs/tmpfs_specops.h

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- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
2005-12-03 20:34:43 +03:00
/* $NetBSD: tmpfs_specops.h,v 1.5 2005/12/03 17:34:44 christos Exp $ */
Initial addition of tmpfs, an efficient memory file-system. This project was developed as part of Google's Summer of Code 2005 program. This change adds the kernel code, the mount_tmpfs utility, a regression test suite and does all other related changes to integrate these. The file-system is still *experimental*. Therefore, it is disabled by default in all kernels. However, as typically done, a commented-out entry is added in them to ease its setup. Note that I haven't commited the required mountd(8) changes to be able to export tmpfs file-systems because NFS support is still very unstable and because, before enabling it, I'd like to do some other changes. OK'ed by my project mentor, William Studenmund (wrstuden@).
2005-09-10 23:20:48 +04:00
/*
* Copyright (c) 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
Kill the tmpfs(9) manual page; it was just documenting internal details of tmpfs' "API" and was already rotting. Instead, merge all the relevant comments into the code. This includes acknowledgements to Google's Summer of Code 2005 program (they were in the AUTHORS section of tmpfs(9) before), so all the files need to be changed to include this sentence alongside the title. (Note that this was not a requirement of the program.)
2005-09-23 19:36:15 +04:00
* by Julio M. Merino Vidal, developed as part of Google's Summer of Code
* 2005 program.
Initial addition of tmpfs, an efficient memory file-system. This project was developed as part of Google's Summer of Code 2005 program. This change adds the kernel code, the mount_tmpfs utility, a regression test suite and does all other related changes to integrate these. The file-system is still *experimental*. Therefore, it is disabled by default in all kernels. However, as typically done, a commented-out entry is added in them to ease its setup. Note that I haven't commited the required mountd(8) changes to be able to export tmpfs file-systems because NFS support is still very unstable and because, before enabling it, I'd like to do some other changes. OK'ed by my project mentor, William Studenmund (wrstuden@).
2005-09-10 23:20:48 +04:00
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
2005-12-03 20:34:43 +03:00
#ifndef _FS_TMPFS_TMPFS_SPECOPS_H_
#define _FS_TMPFS_TMPFS_SPECOPS_H_
Initial addition of tmpfs, an efficient memory file-system. This project was developed as part of Google's Summer of Code 2005 program. This change adds the kernel code, the mount_tmpfs utility, a regression test suite and does all other related changes to integrate these. The file-system is still *experimental*. Therefore, it is disabled by default in all kernels. However, as typically done, a commented-out entry is added in them to ease its setup. Note that I haven't commited the required mountd(8) changes to be able to export tmpfs file-systems because NFS support is still very unstable and because, before enabling it, I'd like to do some other changes. OK'ed by my project mentor, William Studenmund (wrstuden@).
2005-09-10 23:20:48 +04:00
#if !defined(_KERNEL)
- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
2005-12-03 20:34:43 +03:00
#error not supposed to be exposed to userland.
Initial addition of tmpfs, an efficient memory file-system. This project was developed as part of Google's Summer of Code 2005 program. This change adds the kernel code, the mount_tmpfs utility, a regression test suite and does all other related changes to integrate these. The file-system is still *experimental*. Therefore, it is disabled by default in all kernels. However, as typically done, a commented-out entry is added in them to ease its setup. Note that I haven't commited the required mountd(8) changes to be able to export tmpfs file-systems because NFS support is still very unstable and because, before enabling it, I'd like to do some other changes. OK'ed by my project mentor, William Studenmund (wrstuden@).
2005-09-10 23:20:48 +04:00
#endif
#include <miscfs/specfs/specdev.h>
#include <fs/tmpfs/tmpfs_vnops.h>
/* --------------------------------------------------------------------- */
/*
* Declarations for tmpfs_specops.c.
*/
extern int (**tmpfs_specop_p)(void *);
#define tmpfs_spec_lookup spec_lookup
#define tmpfs_spec_create spec_create
#define tmpfs_spec_mknod spec_mknod
#define tmpfs_spec_open spec_open
int tmpfs_spec_close (void *);
#define tmpfs_spec_access tmpfs_access
#define tmpfs_spec_getattr tmpfs_getattr
#define tmpfs_spec_setattr tmpfs_setattr
int tmpfs_spec_read (void *);
int tmpfs_spec_write (void *);
#define tmpfs_spec_fcntl tmpfs_fcntl
#define tmpfs_spec_ioctl spec_ioctl
#define tmpfs_spec_poll spec_poll
#define tmpfs_spec_kqfilter spec_kqfilter
#define tmpfs_spec_revoke spec_revoke
#define tmpfs_spec_mmap spec_mmap
#define tmpfs_spec_fsync spec_fsync
#define tmpfs_spec_seek spec_seek
#define tmpfs_spec_remove spec_remove
#define tmpfs_spec_link spec_link
#define tmpfs_spec_rename spec_rename
#define tmpfs_spec_mkdir spec_mkdir
#define tmpfs_spec_rmdir spec_rmdir
#define tmpfs_spec_symlink spec_symlink
#define tmpfs_spec_readdir spec_readdir
#define tmpfs_spec_readlink spec_readlink
#define tmpfs_spec_abortop spec_abortop
#define tmpfs_spec_inactive tmpfs_inactive
#define tmpfs_spec_reclaim tmpfs_reclaim
#define tmpfs_spec_lock tmpfs_lock
#define tmpfs_spec_unlock tmpfs_unlock
#define tmpfs_spec_bmap spec_bmap
#define tmpfs_spec_strategy spec_strategy
#define tmpfs_spec_print tmpfs_print
#define tmpfs_spec_pathconf spec_pathconf
#define tmpfs_spec_islocked tmpfs_islocked
#define tmpfs_spec_advlock spec_advlock
#define tmpfs_spec_lease tmpfs_lease
Bug fix: change tmpfs_spec_bwrite from tmpfs_bwrite to vn_bwrite, per yamt's suggestion. Previously, if /dev/ was mounted on a tmpfs, block device buffers were never flushed to disk. Trying to unmount a dirty filesystem (umount /dev/wd0e, say) caused an endless stream of vflushbuf warnings, because tmpfs_bwrite was not flushing buffers. The fix told to me by yamt solves the problem.
2005-11-02 08:39:16 +03:00
#define tmpfs_spec_bwrite vn_bwrite
Initial addition of tmpfs, an efficient memory file-system. This project was developed as part of Google's Summer of Code 2005 program. This change adds the kernel code, the mount_tmpfs utility, a regression test suite and does all other related changes to integrate these. The file-system is still *experimental*. Therefore, it is disabled by default in all kernels. However, as typically done, a commented-out entry is added in them to ease its setup. Note that I haven't commited the required mountd(8) changes to be able to export tmpfs file-systems because NFS support is still very unstable and because, before enabling it, I'd like to do some other changes. OK'ed by my project mentor, William Studenmund (wrstuden@).
2005-09-10 23:20:48 +04:00
#define tmpfs_spec_getpages spec_getpages
#define tmpfs_spec_putpages spec_putpages
/* --------------------------------------------------------------------- */
- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
2005-12-03 20:34:43 +03:00
#endif /* _FS_TMPFS_TMPFS_SPECOPS_H_ */
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