d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
27168693db
freebsd-dev/sys/ufs/ffs/ffs_extern.h

130 lines
5.6 KiB
C
Raw Normal View History

BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
/*-
* 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.
*
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
* @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
*/
Removed bogus _BEGIN_DECLS/_END_DECLS. Removed unused struct tag declarations in cloned code. Added or cleaned up idempotency ifdefs.
1996-05-01 02:16:17 +00:00
#ifndef _UFS_FFS_EXTERN_H
#define _UFS_FFS_EXTERN_H
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
struct buf;
Forward declare struct cg to quiet a warning. Submitted by: bde
2001-05-30 23:08:40 +00:00
struct cg;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct fid;
struct fs;
struct inode;
Forward declare some structs so that this file is more self-sufficient.
1998-02-03 21:52:02 +00:00
struct malloc_type;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct mount;
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
struct thread;
Fix all areas of the system (or at least all those in LINT) to avoid storing socket addresses in mbufs. (Socket buffers are the one exception.) A number of kernel APIs needed to get fixed in order to make this happen. Also, fix three protocol families which kept PCBs in mbufs to not malloc them instead. Delete some old compatibility cruft while we're at it, and add some new routines in the in_cksum family.
1997-08-16 19:16:27 +00:00
struct sockaddr;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct statfs;
Forward declare some structs so that this file is more self-sufficient.
1998-02-03 21:52:02 +00:00
struct ucred;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct vnode;
Forward declare even more structs to restore some self-sufficiency. Didn't fix new dependence on <ufs/ufs/inode.h> and its prerequisites.
1998-03-23 14:12:37 +00:00
struct vop_balloc_args;
struct vop_fsync_args;
Forward declare some structs so that this file is more self-sufficient.
1998-02-03 21:52:02 +00:00
struct vop_reallocblks_args;
Add snapshots to the fast filesystem. Most of the changes support the gating of system calls that cause modifications to the underlying filesystem. The gating can be enabled by any filesystem that needs to consistently suspend operations by adding the vop_stdgetwritemount to their set of vnops. Once gating is enabled, the function vfs_write_suspend stops all new write operations to a filesystem, allows any filesystem modifying system calls already in progress to complete, then sync's the filesystem to disk and returns. The function vfs_write_resume allows the suspended write operations to begin again. Gating is not added by default for all filesystems as for SMP systems it adds two extra locks to such critical kernel paths as the write system call. Thus, gating should only be added as needed. Details on the use and current status of snapshots in FFS can be found in /sys/ufs/ffs/README.snapshot so for brevity and timelyness is not included here. Unless and until you create a snapshot file, these changes should have no effect on your system (famous last words).
2000-07-11 22:07:57 +00:00
struct vop_copyonwrite_args;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
Remove __P.
2002-03-19 22:40:48 +00:00
int ffs_alloc(struct inode *,
ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *);
int ffs_balloc(struct vnode *a_vp, off_t a_startoffset, int a_size,
struct ucred *a_cred, int a_flags, struct buf **a_bpp);
int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
void ffs_blkfree(struct fs *, struct vnode *, ufs_daddr_t, long, ino_t);
ufs_daddr_t ffs_blkpref(struct inode *, ufs_daddr_t, int, ufs_daddr_t *);
void ffs_clrblock(struct fs *, u_char *, ufs_daddr_t);
void ffs_clusteracct (struct fs *, struct cg *, ufs_daddr_t, int);
int ffs_fhtovp(struct mount *, struct fid *, struct vnode **);
int ffs_flushfiles(struct mount *, int, struct thread *);
void ffs_fragacct(struct fs *, int, int32_t [], int);
int ffs_freefile(struct fs *, struct vnode *, ino_t, int );
int ffs_isblock(struct fs *, u_char *, ufs_daddr_t);
int ffs_isfreeblock(struct fs *, unsigned char *, ufs_daddr_t);
int ffs_mountfs(struct vnode *, struct mount *, struct thread *,
struct malloc_type *);
int ffs_mountroot(void);
int ffs_mount(struct mount *, char *, caddr_t, struct nameidata *,
struct thread *);
int ffs_reallocblks(struct vop_reallocblks_args *);
int ffs_realloccg(struct inode *,
ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **);
void ffs_setblock(struct fs *, u_char *, ufs_daddr_t);
int ffs_snapblkfree(struct fs *, struct vnode *, ufs_daddr_t, long, ino_t);
void ffs_snapremove(struct vnode *vp);
int ffs_snapshot(struct mount *mp, char *snapfile);
void ffs_snapshot_mount(struct mount *mp);
void ffs_snapshot_unmount(struct mount *mp);
int ffs_statfs(struct mount *, struct statfs *, struct thread *);
int ffs_sync(struct mount *, int, struct ucred *, struct thread *);
int ffs_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
int ffs_unmount(struct mount *, int, struct thread *);
int ffs_update(struct vnode *, int);
int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
VFS mega cleanup commit (x/N) 1. Add new file "sys/kern/vfs_default.c" where default actions for VOPs go. Implement proper defaults for ABORTOP, BWRITE, LEASE, POLL, REVOKE and STRATEGY. Various stuff spread over the entire tree belongs here. 2. Change VOP_BLKATOFF to a normal function in cd9660. 3. Kill VOP_BLKATOFF, VOP_TRUNCATE, VOP_VFREE, VOP_VALLOC. These are private interface functions between UFS and the underlying storage manager layer (FFS/LFS/MFS/EXT2FS). The functions now live in struct ufsmount instead. 4. Remove a kludge of VOP_ functions in all filesystems, that did nothing but obscure the simplicity and break the expandability. If a filesystem doesn't implement VOP_FOO, it shouldn't have an entry for it in its vnops table. The system will try to DTRT if it is not implemented. There are still some cruft left, but the bulk of it is done. 5. Fix another VCALL in vfs_cache.c (thanks Bruce!)
1997-10-16 10:50:27 +00:00
Remove __P.
2002-03-19 22:40:48 +00:00
int ffs_vfree(struct vnode *, ino_t, int);
int ffs_vget(struct mount *, ino_t, int, struct vnode **);
int ffs_vptofh(struct vnode *, struct fid *);
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
extern vop_t **ffs_vnodeop_p;
extern vop_t **ffs_specop_p;
extern vop_t **ffs_fifoop_p;
Removed bogus _BEGIN_DECLS/_END_DECLS. Removed unused struct tag declarations in cloned code. Added or cleaned up idempotency ifdefs.
1996-05-01 02:16:17 +00:00
Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman) Submitted by: Kirk McKusick (mcKusick@mckusick.com) Obtained from: WHistle development tree
1998-03-08 09:59:44 +00:00
/*
* Soft update function prototypes.
*/
Remove __P.
2002-03-19 22:40:48 +00:00
void softdep_initialize(void);
int softdep_mount(struct vnode *, struct mount *, struct fs *,
struct ucred *);
int softdep_flushworklist(struct mount *, int *, struct thread *);
int softdep_flushfiles(struct mount *, int, struct thread *);
void softdep_update_inodeblock(struct inode *, struct buf *, int);
void softdep_load_inodeblock(struct inode *);
void softdep_freefile(struct vnode *, ino_t, int);
int softdep_request_cleanup(struct fs *, struct vnode *);
void softdep_setup_freeblocks(struct inode *, off_t);
void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
void softdep_setup_blkmapdep(struct buf *, struct fs *, ufs_daddr_t);
void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs_daddr_t,
ufs_daddr_t, long, long, struct buf *);
void softdep_setup_allocindir_meta(struct buf *, struct inode *,
struct buf *, int, ufs_daddr_t);
void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
struct buf *, int, ufs_daddr_t, ufs_daddr_t, struct buf *);
void softdep_fsync_mountdev(struct vnode *);
int softdep_sync_metadata(struct vop_fsync_args *);
Clean up warning about undeclared function by declaring softdep_fsync in mount.h instead of ffs_extern.h. The correct solution is to use an indirect function pointer so that the kernel does not have to be built with options FFS, but that will be left for another day.
2000-07-11 19:28:26 +00:00
/* XXX incorrectly moved to mount.h - should be indirect function */
#if 0
Remove __P.
2002-03-19 22:40:48 +00:00
int softdep_fsync(struct vnode *vp);
Clean up warning about undeclared function by declaring softdep_fsync in mount.h instead of ffs_extern.h. The correct solution is to use an indirect function pointer so that the kernel does not have to be built with options FFS, but that will be left for another day.
2000-07-11 19:28:26 +00:00
#endif
Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman) Submitted by: Kirk McKusick (mcKusick@mckusick.com) Obtained from: WHistle development tree
1998-03-08 09:59:44 +00:00
Removed bogus _BEGIN_DECLS/_END_DECLS. Removed unused struct tag declarations in cloned code. Added or cleaned up idempotency ifdefs.
1996-05-01 02:16:17 +00:00
#endif /* !_UFS_FFS_EXTERN_H */
Reference in New Issue Copy Permalink