/* $NetBSD: lfs_vnops.c,v 1.49 2000/11/18 02:11:23 toshii Exp $ */ /*- * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Konrad E. Schroder . * * 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. */ /* * Copyright (c) 1986, 1989, 1991, 1993, 1995 * 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. * * @(#)lfs_vnops.c 8.13 (Berkeley) 6/10/95 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Global vfs data structures for lfs. */ int (**lfs_vnodeop_p) __P((void *)); struct vnodeopv_entry_desc lfs_vnodeop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, ufs_lookup }, /* lookup */ { &vop_create_desc, lfs_create }, /* create */ { &vop_whiteout_desc, lfs_whiteout }, /* whiteout */ { &vop_mknod_desc, lfs_mknod }, /* mknod */ { &vop_open_desc, ufs_open }, /* open */ { &vop_close_desc, lfs_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, lfs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, lfs_read }, /* read */ { &vop_write_desc, lfs_write }, /* write */ { &vop_lease_desc, ufs_lease_check }, /* lease */ { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ { &vop_poll_desc, ufs_poll }, /* poll */ { &vop_revoke_desc, ufs_revoke }, /* revoke */ { &vop_mmap_desc, ufs_mmap }, /* mmap */ { &vop_fsync_desc, lfs_fsync }, /* fsync */ { &vop_seek_desc, ufs_seek }, /* seek */ { &vop_remove_desc, lfs_remove }, /* remove */ { &vop_link_desc, lfs_link }, /* link */ { &vop_rename_desc, lfs_rename }, /* rename */ { &vop_mkdir_desc, lfs_mkdir }, /* mkdir */ { &vop_rmdir_desc, lfs_rmdir }, /* rmdir */ { &vop_symlink_desc, lfs_symlink }, /* symlink */ { &vop_readdir_desc, ufs_readdir }, /* readdir */ { &vop_readlink_desc, ufs_readlink }, /* readlink */ { &vop_abortop_desc, ufs_abortop }, /* abortop */ { &vop_inactive_desc, lfs_inactive }, /* inactive */ { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, ufs_bmap }, /* bmap */ { &vop_strategy_desc, ufs_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ { &vop_advlock_desc, ufs_advlock }, /* advlock */ { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */ { &vop_valloc_desc, lfs_valloc }, /* valloc */ { &vop_balloc_desc, lfs_balloc }, /* balloc */ { &vop_vfree_desc, lfs_vfree }, /* vfree */ { &vop_truncate_desc, lfs_truncate }, /* truncate */ { &vop_update_desc, lfs_update }, /* update */ { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } }; struct vnodeopv_desc lfs_vnodeop_opv_desc = { &lfs_vnodeop_p, lfs_vnodeop_entries }; int (**lfs_specop_p) __P((void *)); struct vnodeopv_entry_desc lfs_specop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, spec_lookup }, /* lookup */ { &vop_create_desc, spec_create }, /* create */ { &vop_mknod_desc, spec_mknod }, /* mknod */ { &vop_open_desc, spec_open }, /* open */ { &vop_close_desc, ufsspec_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, lfs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, ufsspec_read }, /* read */ { &vop_write_desc, ufsspec_write }, /* write */ { &vop_lease_desc, spec_lease_check }, /* lease */ { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ { &vop_poll_desc, spec_poll }, /* poll */ { &vop_revoke_desc, spec_revoke }, /* revoke */ { &vop_mmap_desc, spec_mmap }, /* mmap */ { &vop_fsync_desc, spec_fsync }, /* fsync */ { &vop_seek_desc, spec_seek }, /* seek */ { &vop_remove_desc, spec_remove }, /* remove */ { &vop_link_desc, spec_link }, /* link */ { &vop_rename_desc, spec_rename }, /* rename */ { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ { &vop_symlink_desc, spec_symlink }, /* symlink */ { &vop_readdir_desc, spec_readdir }, /* readdir */ { &vop_readlink_desc, spec_readlink }, /* readlink */ { &vop_abortop_desc, spec_abortop }, /* abortop */ { &vop_inactive_desc, lfs_inactive }, /* inactive */ { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, spec_bmap }, /* bmap */ { &vop_strategy_desc, spec_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ { &vop_advlock_desc, spec_advlock }, /* advlock */ { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ { &vop_valloc_desc, spec_valloc }, /* valloc */ { &vop_vfree_desc, lfs_vfree }, /* vfree */ { &vop_truncate_desc, spec_truncate }, /* truncate */ { &vop_update_desc, lfs_update }, /* update */ { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } }; struct vnodeopv_desc lfs_specop_opv_desc = { &lfs_specop_p, lfs_specop_entries }; int (**lfs_fifoop_p) __P((void *)); struct vnodeopv_entry_desc lfs_fifoop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, fifo_lookup }, /* lookup */ { &vop_create_desc, fifo_create }, /* create */ { &vop_mknod_desc, fifo_mknod }, /* mknod */ { &vop_open_desc, fifo_open }, /* open */ { &vop_close_desc, ufsfifo_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, lfs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, ufsfifo_read }, /* read */ { &vop_write_desc, ufsfifo_write }, /* write */ { &vop_lease_desc, fifo_lease_check }, /* lease */ { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ { &vop_poll_desc, fifo_poll }, /* poll */ { &vop_revoke_desc, fifo_revoke }, /* revoke */ { &vop_mmap_desc, fifo_mmap }, /* mmap */ { &vop_fsync_desc, fifo_fsync }, /* fsync */ { &vop_seek_desc, fifo_seek }, /* seek */ { &vop_remove_desc, fifo_remove }, /* remove */ { &vop_link_desc, fifo_link }, /* link */ { &vop_rename_desc, fifo_rename }, /* rename */ { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ { &vop_symlink_desc, fifo_symlink }, /* symlink */ { &vop_readdir_desc, fifo_readdir }, /* readdir */ { &vop_readlink_desc, fifo_readlink }, /* readlink */ { &vop_abortop_desc, fifo_abortop }, /* abortop */ { &vop_inactive_desc, lfs_inactive }, /* inactive */ { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, fifo_bmap }, /* bmap */ { &vop_strategy_desc, fifo_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ { &vop_advlock_desc, fifo_advlock }, /* advlock */ { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ { &vop_valloc_desc, fifo_valloc }, /* valloc */ { &vop_vfree_desc, lfs_vfree }, /* vfree */ { &vop_truncate_desc, fifo_truncate }, /* truncate */ { &vop_update_desc, lfs_update }, /* update */ { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } }; struct vnodeopv_desc lfs_fifoop_opv_desc = { &lfs_fifoop_p, lfs_fifoop_entries }; /* * A function version of LFS_ITIMES, for the UFS functions which call ITIMES */ void lfs_itimes(ip, acc, mod, cre) struct inode *ip; struct timespec *acc, *mod, *cre; { LFS_ITIMES(ip, acc, mod, cre); } #define LFS_READWRITE #include #undef LFS_READWRITE /* * Synch an open file. */ /* ARGSUSED */ int lfs_fsync(v) void *v; { struct vop_fsync_args /* { struct vnode *a_vp; struct ucred *a_cred; int a_flags; off_t offlo; off_t offhi; struct proc *a_p; } */ *ap = v; /* Ignore the trickle syncer */ if (ap->a_flags & FSYNC_LAZY) return 0; return (VOP_UPDATE(ap->a_vp, NULL, NULL, (ap->a_flags & FSYNC_WAIT) != 0 ? UPDATE_WAIT : 0)); } /* * Take IN_ADIROP off, then call ufs_inactive. */ int lfs_inactive(v) void *v; { struct vop_inactive_args /* { struct vnode *a_vp; struct proc *a_p; } */ *ap = v; struct inode *ip = VTOI(ap->a_vp); if (ip->i_flag & IN_ADIROP) --ip->i_lfs->lfs_nadirop; ip->i_flag &= ~IN_ADIROP; return ufs_inactive(v); } /* * These macros are used to bracket UFS directory ops, so that we can * identify all the pages touched during directory ops which need to * be ordered and flushed atomically, so that they may be recovered. */ /* * XXX KS - Because we have to mark nodes VDIROP in order to prevent * the cache from reclaiming them while a dirop is in progress, we must * also manage the number of nodes so marked (otherwise we can run out). * We do this by setting lfs_dirvcount to the number of marked vnodes; it * is decremented during segment write, when VDIROP is taken off. */ #define SET_DIROP(vp) lfs_set_dirop(vp) static int lfs_set_dirop __P((struct vnode *)); extern int lfs_dirvcount; static int lfs_set_dirop(vp) struct vnode *vp; { struct lfs *fs; int error; fs = VTOI(vp)->i_lfs; /* * We might need one directory block plus supporting indirect blocks, * plus an inode block and ifile page for the new vnode. */ if ((error = lfs_reserve(fs, vp, fsbtodb(fs, NIADDR + 3))) != 0) return (error); if (fs->lfs_dirops == 0) lfs_check(vp, LFS_UNUSED_LBN, 0); while (fs->lfs_writer || lfs_dirvcount > LFS_MAXDIROP) { if(fs->lfs_writer) tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); if(lfs_dirvcount > LFS_MAXDIROP && fs->lfs_dirops==0) { ++fs->lfs_writer; lfs_flush(fs, 0); if(--fs->lfs_writer==0) wakeup(&fs->lfs_dirops); } if(lfs_dirvcount > LFS_MAXDIROP) { #ifdef DEBUG_LFS printf("lfs_set_dirop: sleeping with dirops=%d, " "dirvcount=%d\n", fs->lfs_dirops, lfs_dirvcount); #endif if((error = tsleep(&lfs_dirvcount, PCATCH|PUSER, "lfs_maxdirop", 0)) !=0) { lfs_reserve(fs, vp, -fsbtodb(fs, NIADDR + 3)); return error; } } } ++fs->lfs_dirops; fs->lfs_doifile = 1; /* Hold a reference so SET_ENDOP will be happy */ lfs_vref(vp); return 0; } #define SET_ENDOP(fs,vp,str) { \ --(fs)->lfs_dirops; \ if (!(fs)->lfs_dirops) { \ if ((fs)->lfs_nadirop) { \ panic("SET_ENDOP: %s: no dirops but nadirop=%d\n", \ (str), (fs)->lfs_nadirop); \ } \ wakeup(&(fs)->lfs_writer); \ lfs_check((vp),LFS_UNUSED_LBN,0); \ } \ lfs_reserve(fs, vp, -fsbtodb(fs, NIADDR + 3)); /* XXX */ \ lfs_vunref(vp); \ } #define MARK_VNODE(dvp) do { \ if (!((dvp)->v_flag & VDIROP)) { \ (void)lfs_vref(dvp); \ ++lfs_dirvcount; \ } \ (dvp)->v_flag |= VDIROP; \ if (!(VTOI(dvp)->i_flag & IN_ADIROP)) { \ ++VTOI(dvp)->i_lfs->lfs_nadirop; \ } \ VTOI(dvp)->i_flag |= IN_ADIROP; \ } while(0) #define UNMARK_VNODE(vp) lfs_unmark_vnode(vp) void lfs_unmark_vnode(vp) struct vnode *vp; { struct inode *ip; ip = VTOI(vp); if (ip->i_flag & IN_ADIROP) --ip->i_lfs->lfs_nadirop; ip->i_flag &= ~IN_ADIROP; } int lfs_symlink(v) void *v; { struct vop_symlink_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; struct vattr *a_vap; char *a_target; } */ *ap = v; int error; if ((error = SET_DIROP(ap->a_dvp)) != 0) { vput(ap->a_dvp); return error; } MARK_VNODE(ap->a_dvp); error = ufs_symlink(ap); UNMARK_VNODE(ap->a_dvp); if (*(ap->a_vpp)) UNMARK_VNODE(*(ap->a_vpp)); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symlink"); return (error); } int lfs_mknod(v) void *v; { struct vop_mknod_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; struct vattr *a_vap; } */ *ap = v; struct vattr *vap = ap->a_vap; struct vnode **vpp = ap->a_vpp; struct inode *ip; int error; if ((error = SET_DIROP(ap->a_dvp)) != 0) { vput(ap->a_dvp); return error; } MARK_VNODE(ap->a_dvp); error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), ap->a_dvp, vpp, ap->a_cnp); UNMARK_VNODE(ap->a_dvp); if (*(ap->a_vpp)) UNMARK_VNODE(*(ap->a_vpp)); /* Either way we're done with the dirop at this point */ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod"); if (error) return (error); ip = VTOI(*vpp); ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; if (vap->va_rdev != VNOVAL) { /* * Want to be able to use this to make badblock * inodes, so don't truncate the dev number. */ #if 0 ip->i_ffs_rdev = ufs_rw32(vap->va_rdev, UFS_MPNEEDSWAP((*vpp)->v_mount)); #else ip->i_ffs_rdev = vap->va_rdev; #endif } /* * Call fsync to write the vnode so that we don't have to deal with * flushing it when it's marked VDIROP|VXLOCK. * * XXX KS - If we can't flush we also can't call vgone(), so must * return. But, that leaves this vnode in limbo, also not good. * Can this ever happen (barring hardware failure)? */ if ((error = VOP_FSYNC(*vpp, NOCRED, FSYNC_WAIT, 0, 0, curproc)) != 0) { printf("Couldn't fsync in mknod (ino %d)---what do I do?\n", VTOI(*vpp)->i_number); return (error); } /* * Remove vnode so that it will be reloaded by VFS_VGET and * checked to see if it is an alias of an existing entry in * the inode cache. */ /* Used to be vput, but that causes us to call VOP_INACTIVE twice. */ VOP_UNLOCK(*vpp, 0); lfs_vunref(*vpp); (*vpp)->v_type = VNON; vgone(*vpp); *vpp = 0; return (0); } int lfs_create(v) void *v; { struct vop_create_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; struct vattr *a_vap; } */ *ap = v; int error; if((error = SET_DIROP(ap->a_dvp)) != 0) { vput(ap->a_dvp); return error; } MARK_VNODE(ap->a_dvp); error = ufs_create(ap); UNMARK_VNODE(ap->a_dvp); if (*(ap->a_vpp)) UNMARK_VNODE(*(ap->a_vpp)); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create"); return (error); } int lfs_whiteout(v) void *v; { struct vop_whiteout_args /* { struct vnode *a_dvp; struct componentname *a_cnp; int a_flags; } */ *ap = v; int error; if ((error = SET_DIROP(ap->a_dvp)) != 0) /* XXX no unlock here? */ return error; MARK_VNODE(ap->a_dvp); error = ufs_whiteout(ap); UNMARK_VNODE(ap->a_dvp); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout"); return (error); } int lfs_mkdir(v) void *v; { struct vop_mkdir_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; struct vattr *a_vap; } */ *ap = v; int error; if((error = SET_DIROP(ap->a_dvp)) != 0) { vput(ap->a_dvp); return error; } MARK_VNODE(ap->a_dvp); error = ufs_mkdir(ap); UNMARK_VNODE(ap->a_dvp); if (*(ap->a_vpp)) UNMARK_VNODE(*(ap->a_vpp)); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir"); return (error); } int lfs_remove(v) void *v; { struct vop_remove_args /* { struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap = v; struct vnode *dvp, *vp; int error; dvp = ap->a_dvp; vp = ap->a_vp; if ((error = SET_DIROP(dvp)) != 0) { if (dvp == vp) vrele(vp); else vput(vp); vput(dvp); return error; } MARK_VNODE(dvp); MARK_VNODE(vp); error = ufs_remove(ap); UNMARK_VNODE(dvp); UNMARK_VNODE(vp); /* * If ufs_remove failed, vp doesn't need to be VDIROP any more. * If it succeeded, we can go ahead and wipe out vp, since * its loss won't appear on disk until checkpoint, and by then * dvp will have been written, completing the dirop. */ --lfs_dirvcount; vp->v_flag &= ~VDIROP; wakeup(&lfs_dirvcount); vrele(vp); SET_ENDOP(VTOI(dvp)->i_lfs,dvp,"remove"); return (error); } int lfs_rmdir(v) void *v; { struct vop_rmdir_args /* { struct vnodeop_desc *a_desc; struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap = v; int error; if ((error = SET_DIROP(ap->a_dvp)) != 0) { vrele(ap->a_dvp); if (ap->a_vp->v_mountedhere != NULL) VOP_UNLOCK(ap->a_dvp, 0); vput(ap->a_vp); return error; } MARK_VNODE(ap->a_dvp); MARK_VNODE(ap->a_vp); error = ufs_rmdir(ap); UNMARK_VNODE(ap->a_dvp); UNMARK_VNODE(ap->a_vp); /* * If ufs_rmdir failed, vp doesn't need to be VDIROP any more. * If it succeeded, we can go ahead and wipe out vp, since * its loss won't appear on disk until checkpoint, and by then * dvp will have been written, completing the dirop. */ --lfs_dirvcount; ap->a_vp->v_flag &= ~VDIROP; wakeup(&lfs_dirvcount); vrele(ap->a_vp); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir"); return (error); } int lfs_link(v) void *v; { struct vop_link_args /* { struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap = v; int error; if ((error = SET_DIROP(ap->a_dvp)) != 0) { vput(ap->a_dvp); return error; } MARK_VNODE(ap->a_dvp); error = ufs_link(ap); UNMARK_VNODE(ap->a_dvp); SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link"); return (error); } int lfs_rename(v) void *v; { struct vop_rename_args /* { struct vnode *a_fdvp; struct vnode *a_fvp; struct componentname *a_fcnp; struct vnode *a_tdvp; struct vnode *a_tvp; struct componentname *a_tcnp; } */ *ap = v; struct vnode *tvp, *fvp, *tdvp, *fdvp; int error; struct lfs *fs; fs = VTOI(ap->a_fdvp)->i_lfs; tvp = ap->a_tvp; tdvp = ap->a_tdvp; fvp = ap->a_fvp; fdvp = ap->a_fdvp; /* * Check for cross-device rename. * If it is, we don't want to set dirops, just error out. * (In particular note that MARK_VNODE(tdvp) will DTWT on * a cross-device rename.) * * Copied from ufs_rename. */ if ((fvp->v_mount != tdvp->v_mount) || (tvp && (fvp->v_mount != tvp->v_mount))) { error = EXDEV; goto errout; } if ((error = SET_DIROP(fdvp))!=0) goto errout; MARK_VNODE(fdvp); MARK_VNODE(tdvp); error = ufs_rename(ap); UNMARK_VNODE(fdvp); UNMARK_VNODE(tdvp); SET_ENDOP(fs,fdvp,"rename"); return (error); errout: VOP_ABORTOP(tdvp, ap->a_tcnp); /* XXX, why not in NFS? */ if (tdvp == tvp) vrele(tdvp); else vput(tdvp); if (tvp) vput(tvp); VOP_ABORTOP(fdvp, ap->a_fcnp); /* XXX, why not in NFS? */ vrele(fdvp); vrele(fvp); return (error); } /* XXX hack to avoid calling ITIMES in getattr */ int lfs_getattr(v) void *v; { struct vop_getattr_args /* { struct vnode *a_vp; struct vattr *a_vap; struct ucred *a_cred; struct proc *a_p; } */ *ap = v; struct vnode *vp = ap->a_vp; struct inode *ip = VTOI(vp); struct vattr *vap = ap->a_vap; /* * Copy from inode table */ vap->va_fsid = ip->i_dev; vap->va_fileid = ip->i_number; vap->va_mode = ip->i_ffs_mode & ~IFMT; vap->va_nlink = ip->i_ffs_nlink; vap->va_uid = ip->i_ffs_uid; vap->va_gid = ip->i_ffs_gid; vap->va_rdev = (dev_t)ip->i_ffs_rdev; vap->va_size = ip->i_ffs_size; vap->va_atime.tv_sec = ip->i_ffs_atime; vap->va_atime.tv_nsec = ip->i_ffs_atimensec; vap->va_mtime.tv_sec = ip->i_ffs_mtime; vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec; vap->va_ctime.tv_sec = ip->i_ffs_ctime; vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec; vap->va_flags = ip->i_ffs_flags; vap->va_gen = ip->i_ffs_gen; /* this doesn't belong here */ if (vp->v_type == VBLK) vap->va_blocksize = BLKDEV_IOSIZE; else if (vp->v_type == VCHR) vap->va_blocksize = MAXBSIZE; else vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks); vap->va_type = vp->v_type; vap->va_filerev = ip->i_modrev; return (0); } /* * Close called * * XXX -- we were using ufs_close, but since it updates the * times on the inode, we might need to bump the uinodes * count. */ /* ARGSUSED */ int lfs_close(v) void *v; { struct vop_close_args /* { struct vnode *a_vp; int a_fflag; struct ucred *a_cred; struct proc *a_p; } */ *ap = v; struct vnode *vp = ap->a_vp; struct inode *ip = VTOI(vp); struct timespec ts; simple_lock(&vp->v_interlock); if (vp->v_usecount > 1) { TIMEVAL_TO_TIMESPEC(&time, &ts); LFS_ITIMES(ip, &ts, &ts, &ts); } simple_unlock(&vp->v_interlock); return (0); } /* * Reclaim an inode so that it can be used for other purposes. */ int lfs_no_inactive = 0; int lfs_reclaim(v) void *v; { struct vop_reclaim_args /* { struct vnode *a_vp; struct proc *a_p; } */ *ap = v; struct vnode *vp = ap->a_vp; int error; LFS_CLR_UINO(VTOI(vp), IN_ALLMOD); if ((error = ufs_reclaim(vp, ap->a_p))) return (error); pool_put(&lfs_inode_pool, vp->v_data); vp->v_data = NULL; return (0); }