The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/ufs/ffs/ffs_extern.h

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    1 /*-
    2  * Copyright (c) 1991, 1993, 1994
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95
   30  * $FreeBSD: releng/6.4/sys/ufs/ffs/ffs_extern.h 170553 2007-06-11 10:53:48Z kib $
   31  */
   32 
   33 #ifndef _UFS_FFS_EXTERN_H
   34 #define _UFS_FFS_EXTERN_H
   35 
   36 struct buf;
   37 struct cg;
   38 struct fid;
   39 struct fs;
   40 struct inode;
   41 struct malloc_type;
   42 struct mount;
   43 struct thread;
   44 struct sockaddr;
   45 struct statfs;
   46 struct ucred;
   47 struct vnode;
   48 struct vop_fsync_args;
   49 struct vop_reallocblks_args;
   50 
   51 int     ffs_alloc(struct inode *,
   52             ufs2_daddr_t, ufs2_daddr_t, int, struct ucred *, ufs2_daddr_t *);
   53 int     ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size,
   54             struct ucred *a_cred, int a_flags, struct buf **a_bpp);
   55 int     ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
   56             struct ucred *a_cred, int a_flags, struct buf **a_bpp);
   57 int     ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
   58 void    ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *,
   59             ufs2_daddr_t, long, ino_t);
   60 ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
   61 ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
   62 int     ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
   63 void    ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
   64 void    ffs_bdflush(struct bufobj *, struct buf *);
   65 int     ffs_copyonwrite(struct vnode *, struct buf *);
   66 int     ffs_flushfiles(struct mount *, int, struct thread *);
   67 void    ffs_fragacct(struct fs *, int, int32_t [], int);
   68 int     ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
   69             int);
   70 int     ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
   71 void    ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
   72 int     ffs_mountroot(void);
   73 int     ffs_reallocblks(struct vop_reallocblks_args *);
   74 int     ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
   75             ufs2_daddr_t, int, int, struct ucred *, struct buf **);
   76 void    ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
   77 int     ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t);
   78 void    ffs_snapremove(struct vnode *vp);
   79 int     ffs_snapshot(struct mount *mp, char *snapfile);
   80 void    ffs_snapshot_mount(struct mount *mp);
   81 void    ffs_snapshot_unmount(struct mount *mp);
   82 int     ffs_syncvnode(struct vnode *vp, int waitfor);
   83 int     ffs_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
   84 int     ffs_update(struct vnode *, int);
   85 int     ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
   86 
   87 int     ffs_vfree(struct vnode *, ino_t, int);
   88 vfs_vget_t ffs_vget;
   89 
   90 extern struct vop_vector ffs_vnodeops1;
   91 extern struct vop_vector ffs_fifoops1;
   92 extern struct vop_vector ffs_vnodeops2;
   93 extern struct vop_vector ffs_fifoops2;
   94 
   95 /*
   96  * Soft update function prototypes.
   97  */
   98 
   99 int     softdep_check_suspend(struct mount *, struct vnode *,
  100           int, int, int, int);
  101 void    softdep_get_depcounts(struct mount *, int *, int *);
  102 void    softdep_initialize(void);
  103 void    softdep_uninitialize(void);
  104 int     softdep_mount(struct vnode *, struct mount *, struct fs *,
  105             struct ucred *);
  106 void    softdep_move_dependencies(struct buf *, struct buf *);
  107 int     softdep_flushworklist(struct mount *, int *, struct thread *);
  108 int     softdep_flushfiles(struct mount *, int, struct thread *);
  109 void    softdep_update_inodeblock(struct inode *, struct buf *, int);
  110 void    softdep_load_inodeblock(struct inode *);
  111 void    softdep_freefile(struct vnode *, ino_t, int);
  112 int     softdep_request_cleanup(struct fs *, struct vnode *);
  113 void    softdep_setup_freeblocks(struct inode *, off_t, int);
  114 void    softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
  115 void    softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t);
  116 void    softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
  117             ufs2_daddr_t, long, long, struct buf *);
  118 void    softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
  119             ufs2_daddr_t, long, long, struct buf *);
  120 void    softdep_setup_allocindir_meta(struct buf *, struct inode *,
  121             struct buf *, int, ufs2_daddr_t);
  122 void    softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
  123             struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
  124 void    softdep_fsync_mountdev(struct vnode *);
  125 int     softdep_sync_metadata(struct vnode *);
  126 int     softdep_process_worklist(struct mount *, int);
  127 int     softdep_fsync(struct vnode *);
  128 int     softdep_waitidle(struct mount *);
  129 
  130 #endif /* !_UFS_FFS_EXTERN_H */

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