3d8b2ffe36
from Kirk McKusick. They implement taking pending block/inode frees into account for the sake of correct statfs() numbers, and adding a new softdep type (newdirblk) to correctly handle newly allocated directory blocks. Minor additional changes: 1) swap the newly introduced fs_pendinginodes and fs_pendingblock fields in ffs_sb_swap, and 2) declare lkt_held in the debug version of the softdep lock structure volatile, as it can be modified from interrupt context #ifdef DEBUG.
252 lines
5.0 KiB
C
252 lines
5.0 KiB
C
/* $NetBSD: ffs_softdep.stub.c,v 1.8 2001/12/18 10:57:22 fvdl Exp $ */
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/*
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* Copyright 1997 Marshall Kirk McKusick. All Rights Reserved.
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*
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* This code is derived from work done by Greg Ganger at the
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* University of Michigan.
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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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* 3. None of the names of McKusick, Ganger, or the University of Michigan
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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 MARSHALL KIRK MCKUSICK ``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 MARSHALL KIRK MCKUSICK 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_softdep.stub.c 9.1 (McKusick) 7/9/97
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ffs_softdep.stub.c,v 1.8 2001/12/18 10:57:22 fvdl Exp $");
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#include <sys/param.h>
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#include <sys/vnode.h>
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#include <sys/systm.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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#include <ufs/ufs/ufs_extern.h>
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int
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softdep_flushfiles(oldmnt, flags, p)
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struct mount *oldmnt;
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int flags;
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struct proc *p;
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{
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panic("softdep_flushfiles called");
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}
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int
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softdep_mount(devvp, mp, fs, cred)
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struct vnode *devvp;
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struct mount *mp;
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struct fs *fs;
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struct ucred *cred;
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{
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return (0);
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}
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void
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softdep_initialize()
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{
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return;
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}
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void
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softdep_reinitialize()
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{
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return;
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}
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void
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softdep_setup_inomapdep(bp, ip, newinum)
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struct buf *bp;
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struct inode *ip;
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ino_t newinum;
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{
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panic("softdep_setup_inomapdep called");
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}
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void
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softdep_setup_blkmapdep(bp, fs, newblkno)
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struct buf *bp;
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struct fs *fs;
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ufs_daddr_t newblkno;
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{
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panic("softdep_setup_blkmapdep called");
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}
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void
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softdep_setup_allocdirect(ip, lbn, newblkno, oldblkno, newsize, oldsize, bp)
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struct inode *ip;
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ufs_lbn_t lbn;
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ufs_daddr_t newblkno;
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ufs_daddr_t oldblkno;
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long newsize;
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long oldsize;
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struct buf *bp;
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{
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panic("softdep_setup_allocdirect called");
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}
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void
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softdep_setup_allocindir_page(ip, lbn, bp, ptrno, newblkno, oldblkno, nbp)
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struct inode *ip;
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ufs_lbn_t lbn;
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struct buf *bp;
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int ptrno;
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ufs_daddr_t newblkno;
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ufs_daddr_t oldblkno;
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struct buf *nbp;
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{
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panic("softdep_setup_allocindir_page called");
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}
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void
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softdep_setup_allocindir_meta(nbp, ip, bp, ptrno, newblkno)
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struct buf *nbp;
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struct inode *ip;
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struct buf *bp;
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int ptrno;
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ufs_daddr_t newblkno;
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{
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panic("softdep_setup_allocindir_meta called");
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}
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void
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softdep_setup_freeblocks(ip, length)
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struct inode *ip;
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off_t length;
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{
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panic("softdep_setup_freeblocks called");
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}
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void
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softdep_freefile(v)
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void *v;
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{
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panic("softdep_freefile called");
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}
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int
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softdep_setup_directory_add(bp, dp, diroffset, newinum, newdirbp, isnewblk)
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struct buf *bp;
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struct inode *dp;
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off_t diroffset;
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long newinum;
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struct buf *newdirbp;
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int isnewblk;
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{
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panic("softdep_setup_directory_add called");
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}
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void
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softdep_change_directoryentry_offset(dp, base, oldloc, newloc, entrysize)
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struct inode *dp;
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caddr_t base;
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caddr_t oldloc;
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caddr_t newloc;
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int entrysize;
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{
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panic("softdep_change_directoryentry_offset called");
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}
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void
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softdep_setup_remove(bp, dp, ip, isrmdir)
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struct buf *bp;
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struct inode *dp;
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struct inode *ip;
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int isrmdir;
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{
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panic("softdep_setup_remove called");
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}
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void
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softdep_setup_directory_change(bp, dp, ip, newinum, isrmdir)
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struct buf *bp;
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struct inode *dp;
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struct inode *ip;
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long newinum;
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int isrmdir;
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{
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panic("softdep_setup_directory_change called");
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}
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void
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softdep_change_linkcnt(ip)
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struct inode *ip;
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{
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panic("softdep_change_linkcnt called");
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}
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void
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softdep_load_inodeblock(ip)
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struct inode *ip;
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{
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panic("softdep_load_inodeblock called");
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}
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void
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softdep_update_inodeblock(ip, bp, waitfor)
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struct inode *ip;
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struct buf *bp;
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int waitfor;
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{
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panic("softdep_update_inodeblock called");
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}
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void
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softdep_fsync_mountdev(vp)
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struct vnode *vp;
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{
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panic("softdep_fsync_mountdev called");
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}
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int
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softdep_sync_metadata(v)
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void *v;
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{
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return (0);
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}
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void
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softdep_releasefile(ip)
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struct inode *ip;
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{
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panic("softdep_releasefile called");
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}
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