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 60df8bae1dSRodney W. Grimes 61df8bae1dSRodney W. Grimes /* 62df8bae1dSRodney W. Grimes * Last reference to an inode. If necessary, write or delete it. 63df8bae1dSRodney W. Grimes */ 64df8bae1dSRodney W. Grimes int 65df8bae1dSRodney W. Grimes ufs_inactive(ap) 66df8bae1dSRodney W. Grimes struct vop_inactive_args /* { 67df8bae1dSRodney W. Grimes struct vnode *a_vp; 68b40ce416SJulian Elischer struct thread *a_td; 69df8bae1dSRodney W. Grimes } */ *ap; 70df8bae1dSRodney W. Grimes { 71996c772fSJohn Dyson struct vnode *vp = ap->a_vp; 72996c772fSJohn Dyson struct inode *ip = VTOI(vp); 73b40ce416SJulian Elischer struct thread *td = ap->a_td; 741c85e6a3SKirk McKusick mode_t mode; 751c85e6a3SKirk McKusick int error = 0; 76791dd2faSTor Egge struct mount *mp; 77df8bae1dSRodney W. Grimes 78791dd2faSTor Egge mp = NULL; 79df8bae1dSRodney W. Grimes if (prtactive && vp->v_usecount != 0) 8061acca9fSJustin T. Gibbs vprint("ufs_inactive: pushing active", vp); 81996c772fSJohn Dyson /* 82996c772fSJohn Dyson * Ignore inodes related to stale file handles. 83996c772fSJohn Dyson */ 84996c772fSJohn Dyson if (ip->i_mode == 0) 85996c772fSJohn Dyson goto out; 869ccb939eSKirk McKusick if (ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) 879ccb939eSKirk McKusick softdep_releasefile(ip); 880e4f6eecSXin LI if (ip->i_nlink <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { 89791dd2faSTor Egge (void) vn_start_secondary_write(vp, &mp, V_WAIT); 90df8bae1dSRodney W. Grimes #ifdef QUOTA 91df8bae1dSRodney W. Grimes if (!getinoquota(ip)) 92a7d50c22SKirk McKusick (void)chkiq(ip, -1, NOCRED, FORCE); 93df8bae1dSRodney W. Grimes #endif 94516081f2SRobert Watson #ifdef UFS_EXTATTR 952fc6567eSRobert Watson ufs_extattr_vnode_inactive(vp, td); 96a64ed089SRobert Watson #endif 977aca6291SKirk McKusick error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL, 987aca6291SKirk McKusick NOCRED, td); 99812b1d41SKirk McKusick /* 100812b1d41SKirk McKusick * Setting the mode to zero needs to wait for the inode 101812b1d41SKirk McKusick * to be written just as does a change to the link count. 102812b1d41SKirk McKusick * So, rather than creating a new entry point to do the 103812b1d41SKirk McKusick * same thing, we just use softdep_change_linkcnt(). 104812b1d41SKirk McKusick */ 105b403319bSAlexander Kabaev DIP_SET(ip, i_rdev, 0); 106df8bae1dSRodney W. Grimes mode = ip->i_mode; 107df8bae1dSRodney W. Grimes ip->i_mode = 0; 108b403319bSAlexander Kabaev DIP_SET(ip, i_mode, 0); 109df8bae1dSRodney W. Grimes ip->i_flag |= IN_CHANGE | IN_UPDATE; 110812b1d41SKirk McKusick if (DOINGSOFTDEP(vp)) 111812b1d41SKirk McKusick softdep_change_linkcnt(ip); 112cec0f20cSPoul-Henning Kamp UFS_VFREE(vp, ip->i_number, mode); 113df8bae1dSRodney W. Grimes } 114f2a2857bSKirk McKusick if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) { 115f2a2857bSKirk McKusick if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 && 116791dd2faSTor Egge mp == NULL && 117791dd2faSTor Egge vn_start_secondary_write(vp, &mp, V_NOWAIT)) { 118791dd2faSTor Egge mp = NULL; 119f2a2857bSKirk McKusick ip->i_flag &= ~IN_ACCESS; 120f2a2857bSKirk McKusick } else { 121791dd2faSTor Egge if (mp == NULL) 122791dd2faSTor Egge (void) vn_start_secondary_write(vp, &mp, 123791dd2faSTor Egge V_WAIT); 124de5d1ba5SBruce Evans UFS_UPDATE(vp, 0); 125f2a2857bSKirk McKusick } 126f2a2857bSKirk McKusick } 127996c772fSJohn Dyson out: 128df8bae1dSRodney W. Grimes /* 129df8bae1dSRodney W. Grimes * If we are done with the inode, reclaim it 130df8bae1dSRodney W. Grimes * so that it can be reused immediately. 131df8bae1dSRodney W. Grimes */ 132996c772fSJohn Dyson if (ip->i_mode == 0) 133d4eb29baSPoul-Henning Kamp vrecycle(vp, td); 134791dd2faSTor Egge if (mp != NULL) 135791dd2faSTor Egge vn_finished_secondary_write(mp); 136df8bae1dSRodney W. Grimes return (error); 137df8bae1dSRodney W. Grimes } 138df8bae1dSRodney W. Grimes 139df8bae1dSRodney W. Grimes /* 140df8bae1dSRodney W. Grimes * Reclaim an inode so that it can be used for other purposes. 141df8bae1dSRodney W. Grimes */ 142df8bae1dSRodney W. Grimes int 1432cfc47fbSPoul-Henning Kamp ufs_reclaim(ap) 1442cfc47fbSPoul-Henning Kamp struct vop_reclaim_args /* { 1452cfc47fbSPoul-Henning Kamp struct vnode *a_vp; 146b40ce416SJulian Elischer struct thread *a_td; 1472cfc47fbSPoul-Henning Kamp } */ *ap; 148df8bae1dSRodney W. Grimes { 14905f4ff5dSPoul-Henning Kamp struct vnode *vp = ap->a_vp; 1501c85e6a3SKirk McKusick struct inode *ip = VTOI(vp); 1511c85e6a3SKirk McKusick struct ufsmount *ump = ip->i_ump; 1522fe5b4cbSAndrey A. Chernov #ifdef QUOTA 1532fe5b4cbSAndrey A. Chernov int i; 1542fe5b4cbSAndrey A. Chernov #endif 155df8bae1dSRodney W. Grimes 156df8bae1dSRodney W. Grimes if (prtactive && vp->v_usecount != 0) 157df8bae1dSRodney W. Grimes vprint("ufs_reclaim: pushing active", vp); 1584483fe92SJeff Roberson /* 1594483fe92SJeff Roberson * Destroy the vm object and flush associated pages. 1604483fe92SJeff Roberson */ 1614483fe92SJeff Roberson vnode_destroy_vobject(vp); 16230551872SBruce Evans if (ip->i_flag & IN_LAZYMOD) { 16330551872SBruce Evans ip->i_flag |= IN_MODIFIED; 164de5d1ba5SBruce Evans UFS_UPDATE(vp, 0); 16530551872SBruce Evans } 166df8bae1dSRodney W. Grimes /* 16740715905SPoul-Henning Kamp * Remove the inode from its hash chain. 16840715905SPoul-Henning Kamp */ 16914bc0685SPoul-Henning Kamp vfs_hash_remove(vp); 17040715905SPoul-Henning Kamp /* 171df8bae1dSRodney W. Grimes * Purge old data structures associated with the inode. 172df8bae1dSRodney W. Grimes */ 173df8bae1dSRodney W. Grimes #ifdef QUOTA 174df8bae1dSRodney W. Grimes for (i = 0; i < MAXQUOTAS; i++) { 175df8bae1dSRodney W. Grimes if (ip->i_dquot[i] != NODQUOT) { 176df8bae1dSRodney W. Grimes dqrele(vp, ip->i_dquot[i]); 177df8bae1dSRodney W. Grimes ip->i_dquot[i] = NODQUOT; 178df8bae1dSRodney W. Grimes } 179df8bae1dSRodney W. Grimes } 180df8bae1dSRodney W. Grimes #endif 1819b5ad47fSIan Dowse #ifdef UFS_DIRHASH 1829b5ad47fSIan Dowse if (ip->i_dirhash != NULL) 1839b5ad47fSIan Dowse ufsdirhash_free(ip); 1849b5ad47fSIan Dowse #endif 18523d15e85SJeff Roberson /* 18623d15e85SJeff Roberson * Lock the clearing of v_data so ffs_lock() can inspect it 18723d15e85SJeff Roberson * prior to obtaining the lock. 18823d15e85SJeff Roberson */ 18923d15e85SJeff Roberson VI_LOCK(vp); 1902cfc47fbSPoul-Henning Kamp vp->v_data = 0; 19123d15e85SJeff Roberson VI_UNLOCK(vp); 19223d15e85SJeff Roberson UFS_IFREE(ump, ip); 193df8bae1dSRodney W. Grimes return (0); 194df8bae1dSRodney W. Grimes } 195