160727d8bSWarner Losh /*- 2996c772fSJohn Dyson * Copyright (c) 1991, 1993, 1995 3df8bae1dSRodney W. Grimes * The Regents of the University of California. All rights reserved. 4df8bae1dSRodney W. Grimes * (c) UNIX System Laboratories, Inc. 5df8bae1dSRodney W. Grimes * All or some portions of this file are derived from material licensed 6df8bae1dSRodney W. Grimes * to the University of California by American Telephone and Telegraph 7df8bae1dSRodney W. Grimes * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8df8bae1dSRodney W. Grimes * the permission of UNIX System Laboratories, Inc. 9df8bae1dSRodney W. Grimes * 10df8bae1dSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 11df8bae1dSRodney W. Grimes * modification, are permitted provided that the following conditions 12df8bae1dSRodney W. Grimes * are met: 13df8bae1dSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 14df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 15df8bae1dSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 16df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 17df8bae1dSRodney W. Grimes * documentation and/or other materials provided with the distribution. 18df8bae1dSRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 19df8bae1dSRodney W. Grimes * may be used to endorse or promote products derived from this software 20df8bae1dSRodney W. Grimes * without specific prior written permission. 21df8bae1dSRodney W. Grimes * 22df8bae1dSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23df8bae1dSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24df8bae1dSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25df8bae1dSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26df8bae1dSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27df8bae1dSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28df8bae1dSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29df8bae1dSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30df8bae1dSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31df8bae1dSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32df8bae1dSRodney W. Grimes * SUCH DAMAGE. 33df8bae1dSRodney W. Grimes * 34996c772fSJohn Dyson * @(#)ufs_inode.c 8.9 (Berkeley) 5/14/95 35df8bae1dSRodney W. Grimes */ 36df8bae1dSRodney W. Grimes 37f4636c59SDavid E. O'Brien #include <sys/cdefs.h> 38f4636c59SDavid E. O'Brien __FBSDID("$FreeBSD$"); 39f4636c59SDavid E. O'Brien 4001733a9bSGarrett Wollman #include "opt_quota.h" 41516081f2SRobert Watson #include "opt_ufs.h" 4201733a9bSGarrett Wollman 43df8bae1dSRodney W. Grimes #include <sys/param.h> 445df14863SJeff Roberson #include <sys/systm.h> 45df8bae1dSRodney W. Grimes #include <sys/vnode.h> 467106ca0dSJohn Baldwin #include <sys/lock.h> 47df8bae1dSRodney W. Grimes #include <sys/mount.h> 482cfc47fbSPoul-Henning Kamp #include <sys/malloc.h> 491b367556SJason Evans #include <sys/mutex.h> 50df8bae1dSRodney W. Grimes 51a64ed089SRobert Watson #include <ufs/ufs/extattr.h> 52df8bae1dSRodney W. Grimes #include <ufs/ufs/quota.h> 53df8bae1dSRodney W. Grimes #include <ufs/ufs/inode.h> 542cfc47fbSPoul-Henning Kamp #include <ufs/ufs/ufsmount.h> 55df8bae1dSRodney W. Grimes #include <ufs/ufs/ufs_extern.h> 569b5ad47fSIan Dowse #ifdef UFS_DIRHASH 579b5ad47fSIan Dowse #include <ufs/ufs/dir.h> 589b5ad47fSIan Dowse #include <ufs/ufs/dirhash.h> 599b5ad47fSIan Dowse #endif 601a60c7fcSPawel Jakub Dawidek #ifdef UFS_GJOURNAL 611a60c7fcSPawel Jakub Dawidek #include <ufs/ufs/gjournal.h> 621a60c7fcSPawel Jakub Dawidek #endif 63df8bae1dSRodney W. Grimes 64df8bae1dSRodney W. Grimes /* 65df8bae1dSRodney W. Grimes * Last reference to an inode. If necessary, write or delete it. 66df8bae1dSRodney W. Grimes */ 67df8bae1dSRodney W. Grimes int 68df8bae1dSRodney W. Grimes ufs_inactive(ap) 69df8bae1dSRodney W. Grimes struct vop_inactive_args /* { 70df8bae1dSRodney W. Grimes struct vnode *a_vp; 71b40ce416SJulian Elischer struct thread *a_td; 72df8bae1dSRodney W. Grimes } */ *ap; 73df8bae1dSRodney W. Grimes { 74996c772fSJohn Dyson struct vnode *vp = ap->a_vp; 75996c772fSJohn Dyson struct inode *ip = VTOI(vp); 76b40ce416SJulian Elischer struct thread *td = ap->a_td; 771c85e6a3SKirk McKusick mode_t mode; 781c85e6a3SKirk McKusick int error = 0; 79abf6c181SKonstantin Belousov off_t isize; 80791dd2faSTor Egge struct mount *mp; 81df8bae1dSRodney W. Grimes 82791dd2faSTor Egge mp = NULL; 83996c772fSJohn Dyson /* 84996c772fSJohn Dyson * Ignore inodes related to stale file handles. 85996c772fSJohn Dyson */ 86996c772fSJohn Dyson if (ip->i_mode == 0) 87996c772fSJohn Dyson goto out; 881a60c7fcSPawel Jakub Dawidek #ifdef UFS_GJOURNAL 891a60c7fcSPawel Jakub Dawidek ufs_gjournal_close(vp); 901a60c7fcSPawel Jakub Dawidek #endif 914613aa0eSTor Egge if ((ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) || 9290446e36SKonstantin Belousov (ip->i_nlink <= 0 && !UFS_RDONLY(ip))) { 93ca2fa807STor Egge loop: 94ca2fa807STor Egge if (vn_start_secondary_write(vp, &mp, V_NOWAIT) != 0) { 95ca2fa807STor Egge /* Cannot delete file while file system is suspended */ 96ca2fa807STor Egge if ((vp->v_iflag & VI_DOOMED) != 0) { 97ca2fa807STor Egge /* Cannot return before file is deleted */ 98ca2fa807STor Egge (void) vn_start_secondary_write(vp, &mp, 99ca2fa807STor Egge V_WAIT); 100ca2fa807STor Egge } else { 101ca2fa807STor Egge MNT_ILOCK(mp); 102ca2fa807STor Egge if ((mp->mnt_kern_flag & 103ca2fa807STor Egge (MNTK_SUSPEND2 | MNTK_SUSPENDED)) == 0) { 104ca2fa807STor Egge MNT_IUNLOCK(mp); 105ca2fa807STor Egge goto loop; 106ca2fa807STor Egge } 107ca2fa807STor Egge /* 108ca2fa807STor Egge * Fail to inactivate vnode now and 109ca2fa807STor Egge * let ffs_snapshot() clean up after 110ca2fa807STor Egge * it has resumed the file system. 111ca2fa807STor Egge */ 112ca2fa807STor Egge VI_LOCK(vp); 113ca2fa807STor Egge vp->v_iflag |= VI_OWEINACT; 114ca2fa807STor Egge VI_UNLOCK(vp); 115ca2fa807STor Egge MNT_IUNLOCK(mp); 116ca2fa807STor Egge return (0); 117ca2fa807STor Egge } 118ca2fa807STor Egge } 1194613aa0eSTor Egge } 1209f9c8c59SJeff Roberson isize = ip->i_size; 1219f9c8c59SJeff Roberson if (ip->i_ump->um_fstype == UFS2) 1229f9c8c59SJeff Roberson isize += ip->i_din2->di_extsize; 1239f9c8c59SJeff Roberson if (ip->i_effnlink <= 0 && isize && !UFS_RDONLY(ip)) { 124df8bae1dSRodney W. Grimes #ifdef QUOTA 125df8bae1dSRodney W. Grimes if (!getinoquota(ip)) 126a7d50c22SKirk McKusick (void)chkiq(ip, -1, NOCRED, FORCE); 127df8bae1dSRodney W. Grimes #endif 1289f9c8c59SJeff Roberson error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL, 1299f9c8c59SJeff Roberson NOCRED, td); 1309f9c8c59SJeff Roberson } 1319f9c8c59SJeff Roberson if (ip->i_nlink <= 0 && ip->i_mode && !UFS_RDONLY(ip)) { 132516081f2SRobert Watson #ifdef UFS_EXTATTR 1332fc6567eSRobert Watson ufs_extattr_vnode_inactive(vp, td); 134a64ed089SRobert Watson #endif 135812b1d41SKirk McKusick /* 136812b1d41SKirk McKusick * Setting the mode to zero needs to wait for the inode 137812b1d41SKirk McKusick * to be written just as does a change to the link count. 138812b1d41SKirk McKusick * So, rather than creating a new entry point to do the 139812b1d41SKirk McKusick * same thing, we just use softdep_change_linkcnt(). 140812b1d41SKirk McKusick */ 141b403319bSAlexander Kabaev DIP_SET(ip, i_rdev, 0); 142df8bae1dSRodney W. Grimes mode = ip->i_mode; 143df8bae1dSRodney W. Grimes ip->i_mode = 0; 144b403319bSAlexander Kabaev DIP_SET(ip, i_mode, 0); 145df8bae1dSRodney W. Grimes ip->i_flag |= IN_CHANGE | IN_UPDATE; 146812b1d41SKirk McKusick if (DOINGSOFTDEP(vp)) 147812b1d41SKirk McKusick softdep_change_linkcnt(ip); 148cec0f20cSPoul-Henning Kamp UFS_VFREE(vp, ip->i_number, mode); 149df8bae1dSRodney W. Grimes } 150f2a2857bSKirk McKusick if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) { 151f2a2857bSKirk McKusick if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 && 152791dd2faSTor Egge mp == NULL && 153791dd2faSTor Egge vn_start_secondary_write(vp, &mp, V_NOWAIT)) { 154791dd2faSTor Egge mp = NULL; 155f2a2857bSKirk McKusick ip->i_flag &= ~IN_ACCESS; 156f2a2857bSKirk McKusick } else { 157791dd2faSTor Egge if (mp == NULL) 158791dd2faSTor Egge (void) vn_start_secondary_write(vp, &mp, 159791dd2faSTor Egge V_WAIT); 160de5d1ba5SBruce Evans UFS_UPDATE(vp, 0); 161f2a2857bSKirk McKusick } 162f2a2857bSKirk McKusick } 163996c772fSJohn Dyson out: 164df8bae1dSRodney W. Grimes /* 165df8bae1dSRodney W. Grimes * If we are done with the inode, reclaim it 166df8bae1dSRodney W. Grimes * so that it can be reused immediately. 167df8bae1dSRodney W. Grimes */ 168996c772fSJohn Dyson if (ip->i_mode == 0) 169d4eb29baSPoul-Henning Kamp vrecycle(vp, td); 170791dd2faSTor Egge if (mp != NULL) 171791dd2faSTor Egge vn_finished_secondary_write(mp); 172df8bae1dSRodney W. Grimes return (error); 173df8bae1dSRodney W. Grimes } 174df8bae1dSRodney W. Grimes 175df8bae1dSRodney W. Grimes /* 176df8bae1dSRodney W. Grimes * Reclaim an inode so that it can be used for other purposes. 177df8bae1dSRodney W. Grimes */ 178df8bae1dSRodney W. Grimes int 1792cfc47fbSPoul-Henning Kamp ufs_reclaim(ap) 1802cfc47fbSPoul-Henning Kamp struct vop_reclaim_args /* { 1812cfc47fbSPoul-Henning Kamp struct vnode *a_vp; 182b40ce416SJulian Elischer struct thread *a_td; 1832cfc47fbSPoul-Henning Kamp } */ *ap; 184df8bae1dSRodney W. Grimes { 18505f4ff5dSPoul-Henning Kamp struct vnode *vp = ap->a_vp; 1861c85e6a3SKirk McKusick struct inode *ip = VTOI(vp); 1871c85e6a3SKirk McKusick struct ufsmount *ump = ip->i_ump; 1882fe5b4cbSAndrey A. Chernov #ifdef QUOTA 1892fe5b4cbSAndrey A. Chernov int i; 1902fe5b4cbSAndrey A. Chernov #endif 191df8bae1dSRodney W. Grimes 1924483fe92SJeff Roberson /* 1934483fe92SJeff Roberson * Destroy the vm object and flush associated pages. 1944483fe92SJeff Roberson */ 1954483fe92SJeff Roberson vnode_destroy_vobject(vp); 196d66ba370SKonstantin Belousov if (ip->i_flag & IN_LAZYMOD) 19730551872SBruce Evans ip->i_flag |= IN_MODIFIED; 198de5d1ba5SBruce Evans UFS_UPDATE(vp, 0); 199df8bae1dSRodney W. Grimes /* 20040715905SPoul-Henning Kamp * Remove the inode from its hash chain. 20140715905SPoul-Henning Kamp */ 20214bc0685SPoul-Henning Kamp vfs_hash_remove(vp); 20340715905SPoul-Henning Kamp /* 204df8bae1dSRodney W. Grimes * Purge old data structures associated with the inode. 205df8bae1dSRodney W. Grimes */ 206df8bae1dSRodney W. Grimes #ifdef QUOTA 207df8bae1dSRodney W. Grimes for (i = 0; i < MAXQUOTAS; i++) { 208df8bae1dSRodney W. Grimes if (ip->i_dquot[i] != NODQUOT) { 209df8bae1dSRodney W. Grimes dqrele(vp, ip->i_dquot[i]); 210df8bae1dSRodney W. Grimes ip->i_dquot[i] = NODQUOT; 211df8bae1dSRodney W. Grimes } 212df8bae1dSRodney W. Grimes } 213df8bae1dSRodney W. Grimes #endif 2149b5ad47fSIan Dowse #ifdef UFS_DIRHASH 2159b5ad47fSIan Dowse if (ip->i_dirhash != NULL) 2169b5ad47fSIan Dowse ufsdirhash_free(ip); 2179b5ad47fSIan Dowse #endif 21823d15e85SJeff Roberson /* 21923d15e85SJeff Roberson * Lock the clearing of v_data so ffs_lock() can inspect it 22023d15e85SJeff Roberson * prior to obtaining the lock. 22123d15e85SJeff Roberson */ 22223d15e85SJeff Roberson VI_LOCK(vp); 2232cfc47fbSPoul-Henning Kamp vp->v_data = 0; 22423d15e85SJeff Roberson VI_UNLOCK(vp); 22523d15e85SJeff Roberson UFS_IFREE(ump, ip); 226df8bae1dSRodney W. Grimes return (0); 227df8bae1dSRodney W. Grimes } 228