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NetBSD/sys/ufs/lfs/lfs_extern.h

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Add new VFS op routine - vfs_done and call it on filesystem detach in vfs_detach(). vfs_done may free global filesystem's resources, typically those allocated in respective filesystem's init function. Needed so those filesystems which went in via LKM have a chance to clean after themselves before unloading. This fixes random panics when LKM for filesystem using pools was loaded and unloaded several times. For each leaf filesystem, add appropriate vfs_done routine.
2000-03-16 21:08:17 +03:00
/* $NetBSD: lfs_extern.h,v 1.17 2000/03/16 18:08:33 jdolecek Exp $ */
New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'
1994-06-29 10:39:25 +04:00
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Konrad E. Schroder <perseant@hhhh.org>.
*
* 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.
*/
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/*-
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
* @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
*/
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
/*
* Sysctl values for LFS.
*/
#define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */
#define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */
#define LFS_DOSTATS 3
#define LFS_STATS 4
#define LFS_MAXID 5
#define LFS_NAMES { \
{ 0, 0 }, \
{ "flushindir", CTLTYPE_INT }, \
{ "clean_vnhead", CTLTYPE_INT }, \
{ "dostats", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct fid;
struct mount;
struct nameidata;
struct proc;
struct statfs;
struct timeval;
struct inode;
struct uio;
struct mbuf;
lfs prototypes
1996-02-10 01:28:45 +03:00
struct dinode;
struct buf;
struct vnode;
struct lfs;
struct segment;
Add fwd declaration for struct ucred
1996-02-12 18:20:12 +03:00
struct ucred;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Use the pool allocator and the "nointr" pool page allocator for LFS inodes.
1998-09-01 07:26:05 +04:00
extern struct pool lfs_inode_pool; /* memory pool for inodes */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
__BEGIN_DECLS
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_alloc.c */
int lfs_vcreate __P((struct mount *, ino_t, struct vnode **));
/* lfs_bio.c */
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int lfs_bwrite_ext __P((struct buf *, int));
Fixed lfs_update (and related functions) so that calls from lfs_fsync will DTRT with vnodes marked VDIROP. In particular, the message "flushing VDIROP" will no longer appear, and the filesystem will remain stable in the event of a crash. This was particularly a problem with NFS-exported LFSes, since fsync was called on every file close.
1999-06-01 07:00:40 +04:00
void lfs_flush_fs __P((struct mount *, int));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
void lfs_flush __P((struct lfs *, int));
int lfs_check __P((struct vnode *, ufs_daddr_t, int));
void lfs_freebuf __P((struct buf *));
void lfs_countlocked __P((int *, long *));
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_cksum.c */
u_long cksum __P((void *, size_t));
PR#6032: define fixed sized on-disk superblock structure.
1998-09-12 01:27:12 +04:00
u_long lfs_sb_cksum __P((struct dlfs *));
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_debug.c */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
#ifdef DEBUG
lfs prototypes
1996-02-10 01:28:45 +03:00
void lfs_dump_super __P((struct lfs *));
void lfs_dump_dinode __P((struct dinode *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
void lfs_check_bpp __P((struct lfs *, struct segment *, char *, int));
void lfs_check_segsum __P((struct lfs *, struct segment *, char *, int));
#endif /* DEBUG */
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_inode.c */
Changes to stabilize LFS. The first two of these should also apply to the 1.4 branch. * Use a separate per-fs lock, instead of ufs_hashlock, to protect the Inode free list. This seems to prevent the "lockmgr: %d, not exclusive lock holder %d, unlocking" message I was mis-attributing last night to an unlocked vnode being passed to vrele. * Change calling semantics of lfs_ifind, to give better error reporting: If fed a struct buf, it can report the block number of the offending inode block as well as the inode number. * Back out rev 1.10 of lfs_subr.c, since the replacement code was slightly uglier while being functionally identical. * Make lfs_vunref use the same free list convention as vrele/vput, so that vget does not remove vnodes from a hash list they are not on.
2000-01-19 03:03:04 +03:00
struct dinode *lfs_ifind __P((struct lfs *, ino_t, struct buf *));
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_segment.c */
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
void lfs_imtime __P((struct lfs *));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_vflush __P((struct vnode *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int lfs_writevnodes __P((struct lfs *, struct mount *, struct segment *, int));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_segwrite __P((struct mount *, int));
void lfs_writefile __P((struct lfs *, struct segment *, struct vnode *));
int lfs_writeinode __P((struct lfs *, struct segment *, struct inode *));
int lfs_gatherblock __P((struct segment *, struct buf *, int *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int lfs_gather __P((struct lfs *, struct segment *, struct vnode *, int (*match )__P ((struct lfs *, struct buf *))));
lfs prototypes
1996-02-10 01:28:45 +03:00
void lfs_updatemeta __P((struct segment *));
int lfs_initseg __P((struct lfs *));
void lfs_newseg __P((struct lfs *));
int lfs_writeseg __P((struct lfs *, struct segment *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
void lfs_writesuper __P((struct lfs *, daddr_t));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_match_data __P((struct lfs *, struct buf *));
int lfs_match_indir __P((struct lfs *, struct buf *));
int lfs_match_dindir __P((struct lfs *, struct buf *));
int lfs_match_tindir __P((struct lfs *, struct buf *));
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
struct buf *lfs_newbuf __P((struct vnode *, ufs_daddr_t, size_t));
lfs prototypes
1996-02-10 01:28:45 +03:00
void lfs_callback __P((struct buf *));
void lfs_supercallback __P((struct buf *));
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
void lfs_shellsort __P((struct buf **, ufs_daddr_t *, int));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_vref __P((struct vnode *));
void lfs_vunref __P((struct vnode *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
void lfs_vunref_head __P((struct vnode *));
lfs prototypes
1996-02-10 01:28:45 +03:00
/* lfs_subr.c */
void lfs_seglock __P((struct lfs *, unsigned long));
void lfs_segunlock __P((struct lfs *));
/* lfs_syscalls.c */
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int lfs_fastvget __P((struct mount *, ino_t, ufs_daddr_t, struct vnode **, struct dinode *, int *));
lfs prototypes
1996-02-10 01:28:45 +03:00
struct buf *lfs_fakebuf __P((struct vnode *, int, size_t, caddr_t));
/* lfs_vfsops.c */
Add new VFS op routine - vfs_done and call it on filesystem detach in vfs_detach(). vfs_done may free global filesystem's resources, typically those allocated in respective filesystem's init function. Needed so those filesystems which went in via LKM have a chance to clean after themselves before unloading. This fixes random panics when LKM for filesystem using pools was loaded and unloaded several times. For each leaf filesystem, add appropriate vfs_done routine.
2000-03-16 21:08:17 +03:00
void lfs_init __P((void));
void lfs_done __P((void));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_mountroot __P((void));
Change the second and third args to struct vfsops' (*vfs_mount)() to 'const char *', and 'void *', respectively. The second arg is taken directly from user arguments, and is const there, so must be const in the prototypes and functions. The third arg is also taken directly from user arguments. It doesn't have to be changed, but since it's cleaner to keep the type the same as the user arg's type, and I'm already making the 'const char *' change...
1996-12-22 13:10:12 +03:00
int lfs_mount __P((struct mount *, const char *, void *, struct nameidata *, struct proc *));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_mountfs __P((struct vnode *, struct mount *, struct proc *));
int lfs_unmount __P((struct mount *, int, struct proc *));
int lfs_statfs __P((struct mount *, struct statfs *, struct proc *));
int lfs_sync __P((struct mount *, int, struct ucred *, struct proc *));
int lfs_vget __P((struct mount *, ino_t, struct vnode **));
Modify vfsops to seperate vfs_fhtovp() into two routines. vfs_fhtovp() now only handles the file handle to vnode conversion, and a new call, vfs_checkexp(), performs the export verification.
1999-02-27 02:44:43 +03:00
int lfs_fhtovp __P((struct mount *, struct fid *, struct vnode **));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_vptofh __P((struct vnode *, struct fid *));
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
int lfs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
struct proc *));
lfs prototypes
1996-02-10 01:28:45 +03:00
Add Kirk McKusick's soft updates code to the trunk. Not enabled by default, as the copyright on the main file (ffs_softdep.c) is such that is has been put into gnusrc. options SOFTDEP will pull this in. This code also contains the trickle syncer. Bump version number to 1.4O
1999-11-15 21:49:07 +03:00
int lfs_balloc __P((void *));
lfs prototypes
1996-02-10 01:28:45 +03:00
int lfs_valloc __P((void *));
int lfs_vfree __P((void *));
int lfs_bwrite __P((void *));
int lfs_update __P((void *));
int lfs_truncate __P((void *));
int lfs_blkatoff __P((void *));
int lfs_fsync __P((void *));
int lfs_symlink __P((void *));
int lfs_mknod __P((void *));
int lfs_create __P((void *));
int lfs_mkdir __P((void *));
int lfs_read __P((void *));
int lfs_remove __P((void *));
int lfs_rmdir __P((void *));
int lfs_link __P((void *));
int lfs_rename __P((void *));
int lfs_getattr __P((void *));
int lfs_close __P((void *));
int lfs_inactive __P((void *));
int lfs_reclaim __P((void *));
int lfs_write __P((void *));
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int lfs_whiteout __P((void *));
lfs prototypes
1996-02-10 01:28:45 +03:00
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
__END_DECLS
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
extern int lfs_mount_type;
lfs prototypes
1996-02-10 01:28:45 +03:00
extern int (**lfs_vnodeop_p) __P((void *));
extern int (**lfs_specop_p) __P((void *));
extern int (**lfs_fifoop_p) __P((void *));