1848286ada
to modify on-disk metadata for filesystems mounted for write. Reviewed by: kib, mckusick Sponsored by: FreeBSD Foundation
196 lines
7.9 KiB
C
196 lines
7.9 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
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* $FreeBSD$
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*/
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#ifndef _UFS_FFS_EXTERN_H
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#define _UFS_FFS_EXTERN_H
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#ifndef _KERNEL
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#error "No user-serving parts inside"
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#else
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struct buf;
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struct cg;
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struct fid;
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struct fs;
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struct inode;
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struct malloc_type;
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struct mount;
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struct thread;
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struct sockaddr;
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struct statfs;
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struct ucred;
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struct vnode;
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struct vop_fsync_args;
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struct vop_reallocblks_args;
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struct workhead;
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int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int,
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struct ucred *, ufs2_daddr_t *);
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int ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size,
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struct ucred *a_cred, int a_flags, struct buf **a_bpp);
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int ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
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struct ucred *a_cred, int a_flags, struct buf **a_bpp);
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int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
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void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *,
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ufs2_daddr_t, long, ino_t, enum vtype, struct workhead *);
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ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
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ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
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int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
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void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
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void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int);
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void ffs_bdflush(struct bufobj *, struct buf *);
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int ffs_copyonwrite(struct vnode *, struct buf *);
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int ffs_flushfiles(struct mount *, int, struct thread *);
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void ffs_fragacct(struct fs *, int, int32_t [], int);
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int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
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int, struct workhead *);
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void ffs_fserr(struct fs *, ino_t, char *);
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int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
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int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t);
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void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
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int ffs_mountroot(void);
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void ffs_oldfscompat_write(struct fs *, struct ufsmount *);
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int ffs_own_mount(const struct mount *mp);
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int ffs_reallocblks(struct vop_reallocblks_args *);
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int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
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ufs2_daddr_t, int, int, int, struct ucred *, struct buf **);
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int ffs_reload(struct mount *, struct thread *, int);
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int ffs_sbupdate(struct ufsmount *, int, int);
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void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
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int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t,
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enum vtype, struct workhead *);
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void ffs_snapremove(struct vnode *vp);
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int ffs_snapshot(struct mount *mp, char *snapfile);
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void ffs_snapshot_mount(struct mount *mp);
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void ffs_snapshot_unmount(struct mount *mp);
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void process_deferred_inactive(struct mount *mp);
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void ffs_sync_snap(struct mount *, int);
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int ffs_syncvnode(struct vnode *vp, int waitfor, int flags);
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int ffs_truncate(struct vnode *, off_t, int, struct ucred *);
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int ffs_update(struct vnode *, int);
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int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
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int ffs_vfree(struct vnode *, ino_t, int);
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vfs_vget_t ffs_vget;
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int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int);
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void ffs_susp_initialize(void);
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void ffs_susp_uninitialize(void);
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#define FFSV_FORCEINSMQ 0x0001
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extern struct vop_vector ffs_vnodeops1;
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extern struct vop_vector ffs_fifoops1;
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extern struct vop_vector ffs_vnodeops2;
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extern struct vop_vector ffs_fifoops2;
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/*
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* Soft update function prototypes.
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*/
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int softdep_check_suspend(struct mount *, struct vnode *,
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int, int, int, int);
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void softdep_get_depcounts(struct mount *, int *, int *);
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void softdep_initialize(void);
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void softdep_uninitialize(void);
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int softdep_mount(struct vnode *, struct mount *, struct fs *,
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struct ucred *);
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void softdep_unmount(struct mount *);
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int softdep_move_dependencies(struct buf *, struct buf *);
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int softdep_flushworklist(struct mount *, int *, struct thread *);
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int softdep_flushfiles(struct mount *, int, struct thread *);
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void softdep_update_inodeblock(struct inode *, struct buf *, int);
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void softdep_load_inodeblock(struct inode *);
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void softdep_freefile(struct vnode *, ino_t, int);
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int softdep_request_cleanup(struct fs *, struct vnode *,
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struct ucred *, int);
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void softdep_setup_freeblocks(struct inode *, off_t, int);
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void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int);
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void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t,
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int, int);
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void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
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ufs2_daddr_t, long, long, struct buf *);
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void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
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ufs2_daddr_t, long, long, struct buf *);
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void softdep_setup_allocindir_meta(struct buf *, struct inode *,
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struct buf *, int, ufs2_daddr_t);
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void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
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struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
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void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int,
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struct workhead *);
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void softdep_setup_inofree(struct mount *, struct buf *, ino_t,
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struct workhead *);
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void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *);
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void softdep_fsync_mountdev(struct vnode *);
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int softdep_sync_metadata(struct vnode *);
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int softdep_sync_buf(struct vnode *, struct buf *, int);
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int softdep_process_worklist(struct mount *, int);
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int softdep_fsync(struct vnode *);
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int softdep_waitidle(struct mount *);
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int softdep_prealloc(struct vnode *, int);
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int softdep_journal_lookup(struct mount *, struct vnode **);
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void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int);
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void softdep_journal_fsync(struct inode *);
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void softdep_buf_append(struct buf *, struct workhead *);
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void softdep_inode_append(struct inode *, struct ucred *, struct workhead *);
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void softdep_freework(struct workhead *);
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/*
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* Things to request flushing in softdep_request_cleanup()
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*/
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#define FLUSH_INODES 1
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#define FLUSH_INODES_WAIT 2
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#define FLUSH_BLOCKS 3
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#define FLUSH_BLOCKS_WAIT 4
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/*
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* Flag to ffs_syncvnode() to request flushing of data only,
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* but skip the ffs_update() on the inode itself. Used to avoid
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* deadlock when flushing snapshot inodes while holding snaplk.
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*/
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#define NO_INO_UPDT 0x00000001
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int ffs_rdonly(struct inode *);
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TAILQ_HEAD(snaphead, inode);
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struct snapdata {
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LIST_ENTRY(snapdata) sn_link;
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struct snaphead sn_head;
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daddr_t sn_listsize;
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daddr_t *sn_blklist;
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struct lock sn_lock;
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};
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#endif /* _KERNEL */
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#endif /* !_UFS_FFS_EXTERN_H */
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