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lfs_vnops.c revision 1.23
      1  1.23  perseant /*	$NetBSD: lfs_vnops.c,v 1.23 1999/03/25 21:39:19 perseant Exp $	*/
      2   1.2       cgd 
      3  1.22  perseant /*-
      4  1.22  perseant  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  1.22  perseant  * All rights reserved.
      6  1.22  perseant  *
      7  1.22  perseant  * This code is derived from software contributed to The NetBSD Foundation
      8  1.22  perseant  * by Konrad E. Schroder <perseant (at) hhhh.org>.
      9  1.22  perseant  *
     10  1.22  perseant  * Redistribution and use in source and binary forms, with or without
     11  1.22  perseant  * modification, are permitted provided that the following conditions
     12  1.22  perseant  * are met:
     13  1.22  perseant  * 1. Redistributions of source code must retain the above copyright
     14  1.22  perseant  *    notice, this list of conditions and the following disclaimer.
     15  1.22  perseant  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.22  perseant  *    notice, this list of conditions and the following disclaimer in the
     17  1.22  perseant  *    documentation and/or other materials provided with the distribution.
     18  1.22  perseant  * 3. All advertising materials mentioning features or use of this software
     19  1.22  perseant  *    must display the following acknowledgement:
     20  1.22  perseant  *      This product includes software developed by the NetBSD
     21  1.22  perseant  *      Foundation, Inc. and its contributors.
     22  1.22  perseant  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.22  perseant  *    contributors may be used to endorse or promote products derived
     24  1.22  perseant  *    from this software without specific prior written permission.
     25  1.22  perseant  *
     26  1.22  perseant  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.22  perseant  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.22  perseant  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.22  perseant  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.22  perseant  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.22  perseant  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.22  perseant  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.22  perseant  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.22  perseant  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.22  perseant  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.22  perseant  * POSSIBILITY OF SUCH DAMAGE.
     37  1.22  perseant  */
     38   1.1   mycroft /*
     39  1.15      fvdl  * Copyright (c) 1986, 1989, 1991, 1993, 1995
     40   1.1   mycroft  *	The Regents of the University of California.  All rights reserved.
     41   1.1   mycroft  *
     42   1.1   mycroft  * Redistribution and use in source and binary forms, with or without
     43   1.1   mycroft  * modification, are permitted provided that the following conditions
     44   1.1   mycroft  * are met:
     45   1.1   mycroft  * 1. Redistributions of source code must retain the above copyright
     46   1.1   mycroft  *    notice, this list of conditions and the following disclaimer.
     47   1.1   mycroft  * 2. Redistributions in binary form must reproduce the above copyright
     48   1.1   mycroft  *    notice, this list of conditions and the following disclaimer in the
     49   1.1   mycroft  *    documentation and/or other materials provided with the distribution.
     50   1.1   mycroft  * 3. All advertising materials mentioning features or use of this software
     51   1.1   mycroft  *    must display the following acknowledgement:
     52   1.1   mycroft  *	This product includes software developed by the University of
     53   1.1   mycroft  *	California, Berkeley and its contributors.
     54   1.1   mycroft  * 4. Neither the name of the University nor the names of its contributors
     55   1.1   mycroft  *    may be used to endorse or promote products derived from this software
     56   1.1   mycroft  *    without specific prior written permission.
     57   1.1   mycroft  *
     58   1.1   mycroft  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     59   1.1   mycroft  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     60   1.1   mycroft  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     61   1.1   mycroft  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     62   1.1   mycroft  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     63   1.1   mycroft  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     64   1.1   mycroft  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     65   1.1   mycroft  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     66   1.1   mycroft  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     67   1.1   mycroft  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     68   1.1   mycroft  * SUCH DAMAGE.
     69   1.1   mycroft  *
     70  1.15      fvdl  *	@(#)lfs_vnops.c	8.13 (Berkeley) 6/10/95
     71   1.1   mycroft  */
     72  1.17  sommerfe 
     73   1.1   mycroft #include <sys/param.h>
     74   1.1   mycroft #include <sys/systm.h>
     75   1.1   mycroft #include <sys/namei.h>
     76   1.1   mycroft #include <sys/resourcevar.h>
     77   1.1   mycroft #include <sys/kernel.h>
     78   1.1   mycroft #include <sys/file.h>
     79   1.1   mycroft #include <sys/stat.h>
     80   1.1   mycroft #include <sys/buf.h>
     81   1.1   mycroft #include <sys/proc.h>
     82   1.1   mycroft #include <sys/conf.h>
     83   1.1   mycroft #include <sys/mount.h>
     84   1.1   mycroft #include <sys/vnode.h>
     85   1.1   mycroft #include <sys/malloc.h>
     86  1.19   thorpej #include <sys/pool.h>
     87  1.10  christos #include <sys/signalvar.h>
     88   1.1   mycroft 
     89   1.1   mycroft #include <vm/vm.h>
     90   1.1   mycroft 
     91  1.12   mycroft #include <miscfs/fifofs/fifo.h>
     92  1.12   mycroft #include <miscfs/genfs/genfs.h>
     93   1.1   mycroft #include <miscfs/specfs/specdev.h>
     94   1.1   mycroft 
     95   1.1   mycroft #include <ufs/ufs/quota.h>
     96   1.1   mycroft #include <ufs/ufs/inode.h>
     97   1.1   mycroft #include <ufs/ufs/dir.h>
     98   1.1   mycroft #include <ufs/ufs/ufsmount.h>
     99   1.1   mycroft #include <ufs/ufs/ufs_extern.h>
    100   1.1   mycroft 
    101   1.1   mycroft #include <ufs/lfs/lfs.h>
    102   1.1   mycroft #include <ufs/lfs/lfs_extern.h>
    103   1.1   mycroft 
    104   1.1   mycroft /* Global vfs data structures for lfs. */
    105  1.10  christos int (**lfs_vnodeop_p) __P((void *));
    106   1.1   mycroft struct vnodeopv_entry_desc lfs_vnodeop_entries[] = {
    107   1.1   mycroft 	{ &vop_default_desc, vn_default_error },
    108   1.1   mycroft 	{ &vop_lookup_desc, ufs_lookup },		/* lookup */
    109  1.22  perseant 	{ &vop_create_desc, lfs_create },		/* create */
    110  1.22  perseant 	{ &vop_whiteout_desc, lfs_whiteout },		/* whiteout */
    111  1.22  perseant 	{ &vop_mknod_desc, lfs_mknod },			/* mknod */
    112   1.1   mycroft 	{ &vop_open_desc, ufs_open },			/* open */
    113   1.1   mycroft 	{ &vop_close_desc, lfs_close },			/* close */
    114   1.1   mycroft 	{ &vop_access_desc, ufs_access },		/* access */
    115   1.1   mycroft 	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
    116   1.1   mycroft 	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
    117   1.1   mycroft 	{ &vop_read_desc, lfs_read },			/* read */
    118   1.1   mycroft 	{ &vop_write_desc, lfs_write },			/* write */
    119   1.4   mycroft 	{ &vop_lease_desc, ufs_lease_check },		/* lease */
    120   1.1   mycroft 	{ &vop_ioctl_desc, ufs_ioctl },			/* ioctl */
    121  1.13   mycroft 	{ &vop_poll_desc, ufs_poll },			/* poll */
    122  1.15      fvdl 	{ &vop_revoke_desc, ufs_revoke },		/* revoke */
    123   1.1   mycroft 	{ &vop_mmap_desc, ufs_mmap },			/* mmap */
    124   1.1   mycroft 	{ &vop_fsync_desc, lfs_fsync },			/* fsync */
    125   1.1   mycroft 	{ &vop_seek_desc, ufs_seek },			/* seek */
    126  1.22  perseant 	{ &vop_remove_desc, lfs_remove },		/* remove */
    127  1.22  perseant 	{ &vop_link_desc, lfs_link },			/* link */
    128  1.22  perseant 	{ &vop_rename_desc, lfs_rename },		/* rename */
    129  1.22  perseant 	{ &vop_mkdir_desc, lfs_mkdir },			/* mkdir */
    130  1.22  perseant 	{ &vop_rmdir_desc, lfs_rmdir },			/* rmdir */
    131  1.22  perseant 	{ &vop_symlink_desc, lfs_symlink },		/* symlink */
    132   1.1   mycroft 	{ &vop_readdir_desc, ufs_readdir },		/* readdir */
    133   1.1   mycroft 	{ &vop_readlink_desc, ufs_readlink },		/* readlink */
    134   1.1   mycroft 	{ &vop_abortop_desc, ufs_abortop },		/* abortop */
    135  1.15      fvdl 	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
    136   1.1   mycroft 	{ &vop_reclaim_desc, lfs_reclaim },		/* reclaim */
    137   1.1   mycroft 	{ &vop_lock_desc, ufs_lock },			/* lock */
    138   1.1   mycroft 	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
    139   1.1   mycroft 	{ &vop_bmap_desc, ufs_bmap },			/* bmap */
    140   1.1   mycroft 	{ &vop_strategy_desc, ufs_strategy },		/* strategy */
    141   1.1   mycroft 	{ &vop_print_desc, ufs_print },			/* print */
    142   1.1   mycroft 	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
    143   1.1   mycroft 	{ &vop_pathconf_desc, ufs_pathconf },		/* pathconf */
    144   1.1   mycroft 	{ &vop_advlock_desc, ufs_advlock },		/* advlock */
    145   1.1   mycroft 	{ &vop_blkatoff_desc, lfs_blkatoff },		/* blkatoff */
    146   1.1   mycroft 	{ &vop_valloc_desc, lfs_valloc },		/* valloc */
    147   1.1   mycroft 	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
    148   1.1   mycroft 	{ &vop_truncate_desc, lfs_truncate },		/* truncate */
    149   1.1   mycroft 	{ &vop_update_desc, lfs_update },		/* update */
    150   1.1   mycroft 	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
    151  1.10  christos 	{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
    152   1.1   mycroft };
    153   1.1   mycroft struct vnodeopv_desc lfs_vnodeop_opv_desc =
    154   1.1   mycroft 	{ &lfs_vnodeop_p, lfs_vnodeop_entries };
    155   1.1   mycroft 
    156  1.10  christos int (**lfs_specop_p) __P((void *));
    157   1.1   mycroft struct vnodeopv_entry_desc lfs_specop_entries[] = {
    158   1.1   mycroft 	{ &vop_default_desc, vn_default_error },
    159   1.1   mycroft 	{ &vop_lookup_desc, spec_lookup },		/* lookup */
    160   1.1   mycroft 	{ &vop_create_desc, spec_create },		/* create */
    161   1.1   mycroft 	{ &vop_mknod_desc, spec_mknod },		/* mknod */
    162   1.1   mycroft 	{ &vop_open_desc, spec_open },			/* open */
    163   1.1   mycroft 	{ &vop_close_desc, ufsspec_close },		/* close */
    164   1.1   mycroft 	{ &vop_access_desc, ufs_access },		/* access */
    165   1.1   mycroft 	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
    166   1.1   mycroft 	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
    167   1.1   mycroft 	{ &vop_read_desc, ufsspec_read },		/* read */
    168   1.1   mycroft 	{ &vop_write_desc, ufsspec_write },		/* write */
    169   1.4   mycroft 	{ &vop_lease_desc, spec_lease_check },		/* lease */
    170   1.1   mycroft 	{ &vop_ioctl_desc, spec_ioctl },		/* ioctl */
    171  1.13   mycroft 	{ &vop_poll_desc, spec_poll },			/* poll */
    172  1.15      fvdl 	{ &vop_revoke_desc, spec_revoke },		/* revoke */
    173   1.1   mycroft 	{ &vop_mmap_desc, spec_mmap },			/* mmap */
    174   1.1   mycroft 	{ &vop_fsync_desc, spec_fsync },		/* fsync */
    175   1.1   mycroft 	{ &vop_seek_desc, spec_seek },			/* seek */
    176   1.1   mycroft 	{ &vop_remove_desc, spec_remove },		/* remove */
    177   1.1   mycroft 	{ &vop_link_desc, spec_link },			/* link */
    178   1.1   mycroft 	{ &vop_rename_desc, spec_rename },		/* rename */
    179   1.1   mycroft 	{ &vop_mkdir_desc, spec_mkdir },		/* mkdir */
    180   1.1   mycroft 	{ &vop_rmdir_desc, spec_rmdir },		/* rmdir */
    181   1.1   mycroft 	{ &vop_symlink_desc, spec_symlink },		/* symlink */
    182   1.1   mycroft 	{ &vop_readdir_desc, spec_readdir },		/* readdir */
    183   1.1   mycroft 	{ &vop_readlink_desc, spec_readlink },		/* readlink */
    184   1.1   mycroft 	{ &vop_abortop_desc, spec_abortop },		/* abortop */
    185  1.15      fvdl 	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
    186   1.1   mycroft 	{ &vop_reclaim_desc, lfs_reclaim },		/* reclaim */
    187   1.1   mycroft 	{ &vop_lock_desc, ufs_lock },			/* lock */
    188   1.1   mycroft 	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
    189   1.1   mycroft 	{ &vop_bmap_desc, spec_bmap },			/* bmap */
    190   1.1   mycroft 	{ &vop_strategy_desc, spec_strategy },		/* strategy */
    191   1.1   mycroft 	{ &vop_print_desc, ufs_print },			/* print */
    192   1.1   mycroft 	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
    193   1.1   mycroft 	{ &vop_pathconf_desc, spec_pathconf },		/* pathconf */
    194   1.1   mycroft 	{ &vop_advlock_desc, spec_advlock },		/* advlock */
    195   1.1   mycroft 	{ &vop_blkatoff_desc, spec_blkatoff },		/* blkatoff */
    196   1.1   mycroft 	{ &vop_valloc_desc, spec_valloc },		/* valloc */
    197   1.1   mycroft 	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
    198   1.1   mycroft 	{ &vop_truncate_desc, spec_truncate },		/* truncate */
    199   1.1   mycroft 	{ &vop_update_desc, lfs_update },		/* update */
    200   1.1   mycroft 	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
    201  1.10  christos 	{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
    202   1.1   mycroft };
    203   1.1   mycroft struct vnodeopv_desc lfs_specop_opv_desc =
    204   1.1   mycroft 	{ &lfs_specop_p, lfs_specop_entries };
    205   1.1   mycroft 
    206  1.10  christos int (**lfs_fifoop_p) __P((void *));
    207   1.1   mycroft struct vnodeopv_entry_desc lfs_fifoop_entries[] = {
    208   1.1   mycroft 	{ &vop_default_desc, vn_default_error },
    209   1.1   mycroft 	{ &vop_lookup_desc, fifo_lookup },		/* lookup */
    210   1.1   mycroft 	{ &vop_create_desc, fifo_create },		/* create */
    211   1.1   mycroft 	{ &vop_mknod_desc, fifo_mknod },		/* mknod */
    212   1.1   mycroft 	{ &vop_open_desc, fifo_open },			/* open */
    213   1.1   mycroft 	{ &vop_close_desc, ufsfifo_close },		/* close */
    214   1.1   mycroft 	{ &vop_access_desc, ufs_access },		/* access */
    215   1.1   mycroft 	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
    216   1.1   mycroft 	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
    217   1.1   mycroft 	{ &vop_read_desc, ufsfifo_read },		/* read */
    218   1.1   mycroft 	{ &vop_write_desc, ufsfifo_write },		/* write */
    219   1.4   mycroft 	{ &vop_lease_desc, fifo_lease_check },		/* lease */
    220   1.1   mycroft 	{ &vop_ioctl_desc, fifo_ioctl },		/* ioctl */
    221  1.13   mycroft 	{ &vop_poll_desc, fifo_poll },			/* poll */
    222  1.15      fvdl 	{ &vop_revoke_desc, fifo_revoke },		/* revoke */
    223   1.1   mycroft 	{ &vop_mmap_desc, fifo_mmap },			/* mmap */
    224   1.1   mycroft 	{ &vop_fsync_desc, fifo_fsync },		/* fsync */
    225   1.1   mycroft 	{ &vop_seek_desc, fifo_seek },			/* seek */
    226   1.1   mycroft 	{ &vop_remove_desc, fifo_remove },		/* remove */
    227   1.1   mycroft 	{ &vop_link_desc, fifo_link },			/* link */
    228   1.1   mycroft 	{ &vop_rename_desc, fifo_rename },		/* rename */
    229   1.1   mycroft 	{ &vop_mkdir_desc, fifo_mkdir },		/* mkdir */
    230   1.1   mycroft 	{ &vop_rmdir_desc, fifo_rmdir },		/* rmdir */
    231   1.1   mycroft 	{ &vop_symlink_desc, fifo_symlink },		/* symlink */
    232   1.1   mycroft 	{ &vop_readdir_desc, fifo_readdir },		/* readdir */
    233   1.1   mycroft 	{ &vop_readlink_desc, fifo_readlink },		/* readlink */
    234   1.1   mycroft 	{ &vop_abortop_desc, fifo_abortop },		/* abortop */
    235  1.15      fvdl 	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
    236   1.1   mycroft 	{ &vop_reclaim_desc, lfs_reclaim },		/* reclaim */
    237   1.1   mycroft 	{ &vop_lock_desc, ufs_lock },			/* lock */
    238   1.1   mycroft 	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
    239   1.1   mycroft 	{ &vop_bmap_desc, fifo_bmap },			/* bmap */
    240   1.1   mycroft 	{ &vop_strategy_desc, fifo_strategy },		/* strategy */
    241   1.1   mycroft 	{ &vop_print_desc, ufs_print },			/* print */
    242   1.1   mycroft 	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
    243   1.1   mycroft 	{ &vop_pathconf_desc, fifo_pathconf },		/* pathconf */
    244   1.1   mycroft 	{ &vop_advlock_desc, fifo_advlock },		/* advlock */
    245   1.1   mycroft 	{ &vop_blkatoff_desc, fifo_blkatoff },		/* blkatoff */
    246   1.1   mycroft 	{ &vop_valloc_desc, fifo_valloc },		/* valloc */
    247   1.1   mycroft 	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
    248   1.1   mycroft 	{ &vop_truncate_desc, fifo_truncate },		/* truncate */
    249   1.1   mycroft 	{ &vop_update_desc, lfs_update },		/* update */
    250   1.1   mycroft 	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
    251  1.10  christos 	{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
    252   1.1   mycroft };
    253   1.1   mycroft struct vnodeopv_desc lfs_fifoop_opv_desc =
    254   1.1   mycroft 	{ &lfs_fifoop_p, lfs_fifoop_entries };
    255   1.1   mycroft 
    256   1.1   mycroft #define	LFS_READWRITE
    257   1.1   mycroft #include <ufs/ufs/ufs_readwrite.c>
    258   1.1   mycroft #undef	LFS_READWRITE
    259   1.1   mycroft 
    260   1.1   mycroft /*
    261   1.1   mycroft  * Synch an open file.
    262   1.1   mycroft  */
    263   1.1   mycroft /* ARGSUSED */
    264  1.10  christos int
    265  1.10  christos lfs_fsync(v)
    266  1.10  christos 	void *v;
    267  1.10  christos {
    268   1.1   mycroft 	struct vop_fsync_args /* {
    269   1.1   mycroft 		struct vnode *a_vp;
    270   1.1   mycroft 		struct ucred *a_cred;
    271  1.22  perseant 		int a_flags;
    272   1.1   mycroft 		struct proc *a_p;
    273  1.10  christos 	} */ *ap = v;
    274  1.22  perseant 
    275  1.21   mycroft 	return (VOP_UPDATE(ap->a_vp, NULL, NULL,
    276  1.22  perseant 			   (ap->a_flags & FSYNC_WAIT) != 0 ? LFS_SYNC : 0)); /* XXX */
    277   1.1   mycroft }
    278   1.1   mycroft 
    279   1.1   mycroft /*
    280   1.1   mycroft  * These macros are used to bracket UFS directory ops, so that we can
    281   1.1   mycroft  * identify all the pages touched during directory ops which need to
    282   1.1   mycroft  * be ordered and flushed atomically, so that they may be recovered.
    283   1.1   mycroft  */
    284  1.22  perseant /*
    285  1.22  perseant  * XXX KS - Because we have to mark nodes VDIROP in order to prevent
    286  1.22  perseant  * the cache from reclaiming them while a dirop is in progress, we must
    287  1.22  perseant  * also manage the number of nodes so marked (otherwise we can run out).
    288  1.22  perseant  * We do this by setting lfs_dirvcount to the number of marked vnodes; it
    289  1.22  perseant  * is decremented during segment write, when VDIROP is taken off.
    290  1.22  perseant  */
    291   1.1   mycroft #define	SET_DIROP(fs) {							\
    292  1.22  perseant 	while ((fs)->lfs_writer || (fs)->lfs_dirvcount>LFS_MAXDIROP) {	\
    293  1.22  perseant 		if((fs)->lfs_writer)					\
    294  1.22  perseant 			tsleep(&(fs)->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0);\
    295  1.22  perseant 		if((fs)->lfs_dirvcount > LFS_MAXDIROP) {		\
    296  1.22  perseant 			printf("(dirvcount=%d)\n",(fs)->lfs_dirvcount); \
    297  1.22  perseant 			tsleep(&(fs)->lfs_dirvcount, PRIBIO + 1, "lfs_maxdirop", 0);\
    298  1.22  perseant 		}							\
    299  1.22  perseant 	}								\
    300   1.1   mycroft 	++(fs)->lfs_dirops;						\
    301   1.1   mycroft 	(fs)->lfs_doifile = 1;						\
    302   1.1   mycroft }
    303   1.1   mycroft 
    304   1.1   mycroft #define	SET_ENDOP(fs) {							\
    305   1.1   mycroft 	--(fs)->lfs_dirops;						\
    306  1.22  perseant 	if (!(fs)->lfs_dirops) {					\
    307   1.1   mycroft 		wakeup(&(fs)->lfs_writer);				\
    308  1.22  perseant 		if ((fs)->lfs_dirvcount > LFS_MAXDIROP)			\
    309  1.22  perseant 			lfs_flush((fs),0);				\
    310  1.22  perseant 	}								\
    311   1.1   mycroft }
    312   1.1   mycroft 
    313  1.22  perseant #define	MARK_VNODE(dvp)  do {                                           \
    314  1.22  perseant         if(!((dvp)->v_flag & VDIROP)) {					\
    315  1.22  perseant                 lfs_vref(dvp);						\
    316  1.22  perseant 		++VTOI((dvp))->i_lfs->lfs_dirvcount;			\
    317  1.22  perseant 	}								\
    318  1.22  perseant         (dvp)->v_flag |= VDIROP;					\
    319  1.22  perseant } while(0)
    320  1.15      fvdl 
    321   1.1   mycroft int
    322  1.10  christos lfs_symlink(v)
    323  1.10  christos 	void *v;
    324  1.10  christos {
    325   1.1   mycroft 	struct vop_symlink_args /* {
    326   1.1   mycroft 		struct vnode *a_dvp;
    327   1.1   mycroft 		struct vnode **a_vpp;
    328   1.1   mycroft 		struct componentname *a_cnp;
    329   1.1   mycroft 		struct vattr *a_vap;
    330   1.1   mycroft 		char *a_target;
    331  1.10  christos 	} */ *ap = v;
    332   1.1   mycroft 	int ret;
    333   1.1   mycroft 
    334   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    335   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    336   1.1   mycroft 	ret = ufs_symlink(ap);
    337   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    338   1.1   mycroft 	return (ret);
    339   1.1   mycroft }
    340   1.1   mycroft 
    341   1.1   mycroft int
    342  1.10  christos lfs_mknod(v)
    343  1.10  christos 	void *v;
    344  1.10  christos {
    345  1.22  perseant 	struct vop_mknod_args	/* {
    346   1.1   mycroft 		struct vnode *a_dvp;
    347   1.1   mycroft 		struct vnode **a_vpp;
    348   1.1   mycroft 		struct componentname *a_cnp;
    349   1.1   mycroft 		struct vattr *a_vap;
    350  1.22  perseant 		} */ *ap = v;
    351   1.1   mycroft 	int ret;
    352   1.1   mycroft 
    353   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    354   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    355   1.1   mycroft 	ret = ufs_mknod(ap);
    356   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    357   1.1   mycroft 	return (ret);
    358   1.1   mycroft }
    359   1.1   mycroft 
    360   1.1   mycroft int
    361  1.10  christos lfs_create(v)
    362  1.10  christos 	void *v;
    363  1.10  christos {
    364  1.22  perseant 	struct vop_create_args	/* {
    365   1.1   mycroft 		struct vnode *a_dvp;
    366   1.1   mycroft 		struct vnode **a_vpp;
    367   1.1   mycroft 		struct componentname *a_cnp;
    368   1.1   mycroft 		struct vattr *a_vap;
    369  1.10  christos 	} */ *ap = v;
    370   1.1   mycroft 	int ret;
    371   1.1   mycroft 
    372   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    373   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    374   1.1   mycroft 	ret = ufs_create(ap);
    375   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    376   1.1   mycroft 	return (ret);
    377   1.1   mycroft }
    378   1.1   mycroft 
    379   1.1   mycroft int
    380  1.22  perseant lfs_whiteout(v)
    381  1.22  perseant 	void *v;
    382  1.22  perseant {
    383  1.22  perseant 	struct vop_whiteout_args /* {
    384  1.22  perseant 		struct vnode *a_dvp;
    385  1.22  perseant 		struct componentname *a_cnp;
    386  1.22  perseant 		int a_flags;
    387  1.22  perseant 	} */ *ap = v;
    388  1.22  perseant 	int ret;
    389  1.22  perseant 
    390  1.22  perseant 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    391  1.22  perseant 	MARK_VNODE(ap->a_dvp);
    392  1.22  perseant 	ret = ufs_whiteout(ap);
    393  1.22  perseant 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    394  1.22  perseant 	return (ret);
    395  1.22  perseant }
    396  1.22  perseant 
    397  1.22  perseant int
    398  1.10  christos lfs_mkdir(v)
    399  1.10  christos 	void *v;
    400  1.10  christos {
    401  1.22  perseant 	struct vop_mkdir_args	/* {
    402   1.1   mycroft 		struct vnode *a_dvp;
    403   1.1   mycroft 		struct vnode **a_vpp;
    404   1.1   mycroft 		struct componentname *a_cnp;
    405   1.1   mycroft 		struct vattr *a_vap;
    406  1.10  christos 	} */ *ap = v;
    407   1.1   mycroft 	int ret;
    408   1.1   mycroft 
    409   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    410   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    411   1.1   mycroft 	ret = ufs_mkdir(ap);
    412   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    413   1.1   mycroft 	return (ret);
    414   1.1   mycroft }
    415   1.1   mycroft 
    416   1.1   mycroft int
    417  1.10  christos lfs_remove(v)
    418  1.10  christos 	void *v;
    419  1.10  christos {
    420  1.22  perseant 	struct vop_remove_args	/* {
    421   1.1   mycroft 		struct vnode *a_dvp;
    422   1.1   mycroft 		struct vnode *a_vp;
    423   1.1   mycroft 		struct componentname *a_cnp;
    424  1.10  christos 	} */ *ap = v;
    425   1.1   mycroft 	int ret;
    426   1.1   mycroft 
    427   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    428   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    429   1.1   mycroft 	MARK_VNODE(ap->a_vp);
    430   1.1   mycroft 	ret = ufs_remove(ap);
    431   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    432   1.1   mycroft 	return (ret);
    433   1.1   mycroft }
    434   1.1   mycroft 
    435   1.1   mycroft int
    436  1.10  christos lfs_rmdir(v)
    437  1.10  christos 	void *v;
    438  1.10  christos {
    439  1.22  perseant 	struct vop_rmdir_args	/* {
    440   1.1   mycroft 		struct vnodeop_desc *a_desc;
    441   1.1   mycroft 		struct vnode *a_dvp;
    442   1.1   mycroft 		struct vnode *a_vp;
    443   1.1   mycroft 		struct componentname *a_cnp;
    444  1.10  christos 	} */ *ap = v;
    445   1.1   mycroft 	int ret;
    446   1.1   mycroft 
    447   1.1   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    448   1.1   mycroft 	MARK_VNODE(ap->a_dvp);
    449   1.1   mycroft 	MARK_VNODE(ap->a_vp);
    450   1.1   mycroft 	ret = ufs_rmdir(ap);
    451   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    452   1.1   mycroft 	return (ret);
    453   1.1   mycroft }
    454   1.1   mycroft 
    455   1.1   mycroft int
    456  1.10  christos lfs_link(v)
    457  1.10  christos 	void *v;
    458  1.10  christos {
    459  1.22  perseant 	struct vop_link_args	/* {
    460   1.9   mycroft 		struct vnode *a_dvp;
    461   1.1   mycroft 		struct vnode *a_vp;
    462   1.1   mycroft 		struct componentname *a_cnp;
    463  1.10  christos 	} */ *ap = v;
    464   1.1   mycroft 	int ret;
    465   1.1   mycroft 
    466   1.9   mycroft 	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
    467   1.9   mycroft 	MARK_VNODE(ap->a_dvp);
    468   1.1   mycroft 	ret = ufs_link(ap);
    469   1.9   mycroft 	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
    470   1.1   mycroft 	return (ret);
    471   1.1   mycroft }
    472  1.22  perseant 
    473   1.1   mycroft int
    474  1.10  christos lfs_rename(v)
    475  1.10  christos 	void *v;
    476  1.10  christos {
    477  1.22  perseant 	struct vop_rename_args	/* {
    478   1.1   mycroft 		struct vnode *a_fdvp;
    479   1.1   mycroft 		struct vnode *a_fvp;
    480   1.1   mycroft 		struct componentname *a_fcnp;
    481   1.1   mycroft 		struct vnode *a_tdvp;
    482   1.1   mycroft 		struct vnode *a_tvp;
    483   1.1   mycroft 		struct componentname *a_tcnp;
    484  1.10  christos 	} */ *ap = v;
    485   1.1   mycroft 	int ret;
    486  1.22  perseant 
    487   1.1   mycroft 	SET_DIROP(VTOI(ap->a_fdvp)->i_lfs);
    488   1.1   mycroft 	MARK_VNODE(ap->a_fdvp);
    489   1.1   mycroft 	MARK_VNODE(ap->a_tdvp);
    490   1.1   mycroft 	ret = ufs_rename(ap);
    491   1.1   mycroft 	SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs);
    492   1.1   mycroft 	return (ret);
    493   1.1   mycroft }
    494  1.22  perseant 
    495   1.1   mycroft /* XXX hack to avoid calling ITIMES in getattr */
    496   1.1   mycroft int
    497  1.10  christos lfs_getattr(v)
    498  1.10  christos 	void *v;
    499  1.10  christos {
    500   1.1   mycroft 	struct vop_getattr_args /* {
    501   1.1   mycroft 		struct vnode *a_vp;
    502   1.1   mycroft 		struct vattr *a_vap;
    503   1.1   mycroft 		struct ucred *a_cred;
    504   1.1   mycroft 		struct proc *a_p;
    505  1.10  christos 	} */ *ap = v;
    506   1.1   mycroft 	register struct vnode *vp = ap->a_vp;
    507   1.1   mycroft 	register struct inode *ip = VTOI(vp);
    508   1.1   mycroft 	register struct vattr *vap = ap->a_vap;
    509   1.1   mycroft 	/*
    510   1.1   mycroft 	 * Copy from inode table
    511   1.1   mycroft 	 */
    512   1.1   mycroft 	vap->va_fsid = ip->i_dev;
    513   1.1   mycroft 	vap->va_fileid = ip->i_number;
    514  1.14    bouyer 	vap->va_mode = ip->i_ffs_mode & ~IFMT;
    515  1.14    bouyer 	vap->va_nlink = ip->i_ffs_nlink;
    516  1.14    bouyer 	vap->va_uid = ip->i_ffs_uid;
    517  1.14    bouyer 	vap->va_gid = ip->i_ffs_gid;
    518  1.14    bouyer 	vap->va_rdev = (dev_t)ip->i_ffs_rdev;
    519  1.14    bouyer 	vap->va_size = ip->i_ffs_size;
    520  1.14    bouyer 	vap->va_atime.tv_sec = ip->i_ffs_atime;
    521  1.14    bouyer 	vap->va_atime.tv_nsec = ip->i_ffs_atimensec;
    522  1.14    bouyer 	vap->va_mtime.tv_sec = ip->i_ffs_mtime;
    523  1.14    bouyer 	vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec;
    524  1.14    bouyer 	vap->va_ctime.tv_sec = ip->i_ffs_ctime;
    525  1.14    bouyer 	vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec;
    526  1.14    bouyer 	vap->va_flags = ip->i_ffs_flags;
    527  1.14    bouyer 	vap->va_gen = ip->i_ffs_gen;
    528   1.1   mycroft 	/* this doesn't belong here */
    529   1.1   mycroft 	if (vp->v_type == VBLK)
    530   1.1   mycroft 		vap->va_blocksize = BLKDEV_IOSIZE;
    531   1.1   mycroft 	else if (vp->v_type == VCHR)
    532   1.1   mycroft 		vap->va_blocksize = MAXBSIZE;
    533   1.1   mycroft 	else
    534   1.1   mycroft 		vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
    535  1.20       cgd 	vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks);
    536   1.1   mycroft 	vap->va_type = vp->v_type;
    537   1.1   mycroft 	vap->va_filerev = ip->i_modrev;
    538   1.1   mycroft 	return (0);
    539   1.1   mycroft }
    540  1.22  perseant 
    541   1.1   mycroft /*
    542   1.1   mycroft  * Close called
    543   1.1   mycroft  *
    544   1.1   mycroft  * XXX -- we were using ufs_close, but since it updates the
    545   1.1   mycroft  * times on the inode, we might need to bump the uinodes
    546   1.1   mycroft  * count.
    547   1.1   mycroft  */
    548   1.1   mycroft /* ARGSUSED */
    549   1.1   mycroft int
    550  1.10  christos lfs_close(v)
    551  1.10  christos 	void *v;
    552  1.10  christos {
    553   1.1   mycroft 	struct vop_close_args /* {
    554   1.1   mycroft 		struct vnode *a_vp;
    555   1.1   mycroft 		int  a_fflag;
    556   1.1   mycroft 		struct ucred *a_cred;
    557   1.1   mycroft 		struct proc *a_p;
    558  1.10  christos 	} */ *ap = v;
    559   1.1   mycroft 	register struct vnode *vp = ap->a_vp;
    560   1.1   mycroft 	register struct inode *ip = VTOI(vp);
    561   1.1   mycroft 	int mod;
    562  1.12   mycroft 	struct timespec ts;
    563   1.1   mycroft 
    564  1.15      fvdl 	simple_lock(&vp->v_interlock);
    565  1.15      fvdl 	if (vp->v_usecount > 1) {
    566   1.1   mycroft 		mod = ip->i_flag & IN_MODIFIED;
    567  1.12   mycroft 		TIMEVAL_TO_TIMESPEC(&time, &ts);
    568  1.22  perseant 		LFS_ITIMES(ip, &ts, &ts, &ts);
    569   1.1   mycroft 		if (!mod && ip->i_flag & IN_MODIFIED)
    570   1.1   mycroft 			ip->i_lfs->lfs_uinodes++;
    571   1.1   mycroft 	}
    572  1.15      fvdl 	simple_unlock(&vp->v_interlock);
    573   1.1   mycroft 	return (0);
    574   1.1   mycroft }
    575   1.1   mycroft 
    576   1.1   mycroft /*
    577  1.15      fvdl  * Reclaim an inode so that it can be used for other purposes.
    578   1.1   mycroft  */
    579   1.1   mycroft int lfs_no_inactive = 0;
    580   1.1   mycroft 
    581   1.1   mycroft int
    582  1.10  christos lfs_reclaim(v)
    583  1.10  christos 	void *v;
    584  1.10  christos {
    585   1.1   mycroft 	struct vop_reclaim_args /* {
    586   1.1   mycroft 		struct vnode *a_vp;
    587  1.15      fvdl 		struct proc *a_p;
    588  1.10  christos 	} */ *ap = v;
    589  1.15      fvdl 	struct vnode *vp = ap->a_vp;
    590   1.1   mycroft 	int error;
    591   1.1   mycroft 
    592  1.15      fvdl 	if ((error = ufs_reclaim(vp, ap->a_p)))
    593   1.1   mycroft 		return (error);
    594  1.19   thorpej 	pool_put(&lfs_inode_pool, vp->v_data);
    595   1.1   mycroft 	vp->v_data = NULL;
    596   1.1   mycroft 	return (0);
    597   1.1   mycroft }
    598