1/* 2 * Copyright (c) 2000-2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18#include "xfs.h" 19#include "xfs_fs.h" 20#include "xfs_types.h" 21#include "xfs_log.h" 22#include "xfs_inum.h" 23#include "xfs_trans.h" 24#include "xfs_sb.h" 25#include "xfs_ag.h" 26#include "xfs_dir2.h" 27#include "xfs_dmapi.h" 28#include "xfs_mount.h" 29#include "xfs_quota.h" 30#include "xfs_error.h" 31 32STATIC struct xfs_dquot * 33xfs_dqvopchown_default( 34 struct xfs_trans *tp, 35 struct xfs_inode *ip, 36 struct xfs_dquot **dqp, 37 struct xfs_dquot *dq) 38{ 39 return NULL; 40} 41 42/* 43 * Clear the quotaflags in memory and in the superblock. 44 */ 45int 46xfs_mount_reset_sbqflags(xfs_mount_t *mp) 47{ 48 int error; 49 xfs_trans_t *tp; 50 unsigned long s; 51 52 mp->m_qflags = 0; 53 /* 54 * It is OK to look at sb_qflags here in mount path, 55 * without SB_LOCK. 56 */ 57 if (mp->m_sb.sb_qflags == 0) 58 return 0; 59 s = XFS_SB_LOCK(mp); 60 mp->m_sb.sb_qflags = 0; 61 XFS_SB_UNLOCK(mp, s); 62 63 /* 64 * if the fs is readonly, let the incore superblock run 65 * with quotas off but don't flush the update out to disk 66 */ 67 if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY) 68 return 0; 69#ifdef QUOTADEBUG 70 xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes"); 71#endif 72 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); 73 if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0, 74 XFS_DEFAULT_LOG_COUNT))) { 75 xfs_trans_cancel(tp, 0); 76 xfs_fs_cmn_err(CE_ALERT, mp, 77 "xfs_mount_reset_sbqflags: Superblock update failed!"); 78 return error; 79 } 80 xfs_mod_sb(tp, XFS_SB_QFLAGS); 81 error = xfs_trans_commit(tp, 0); 82 return error; 83} 84 85STATIC int 86xfs_noquota_init( 87 xfs_mount_t *mp, 88 uint *needquotamount, 89 uint *quotaflags) 90{ 91 int error = 0; 92 93 *quotaflags = 0; 94 *needquotamount = B_FALSE; 95 96 ASSERT(!XFS_IS_QUOTA_ON(mp)); 97 98 /* 99 * If a file system had quotas running earlier, but decided to 100 * mount without -o uquota/pquota/gquota options, revoke the 101 * quotachecked license. 102 */ 103 if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) { 104 cmn_err(CE_NOTE, 105 "XFS resetting qflags for filesystem %s", 106 mp->m_fsname); 107 108 error = xfs_mount_reset_sbqflags(mp); 109 } 110 return error; 111} 112 113xfs_qmops_t xfs_qmcore_stub = { 114 .xfs_qminit = (xfs_qminit_t) xfs_noquota_init, 115 .xfs_qmdone = (xfs_qmdone_t) fs_noerr, 116 .xfs_qmmount = (xfs_qmmount_t) fs_noerr, 117 .xfs_qmunmount = (xfs_qmunmount_t) fs_noerr, 118 .xfs_dqrele = (xfs_dqrele_t) fs_noerr, 119 .xfs_dqattach = (xfs_dqattach_t) fs_noerr, 120 .xfs_dqdetach = (xfs_dqdetach_t) fs_noerr, 121 .xfs_dqpurgeall = (xfs_dqpurgeall_t) fs_noerr, 122 .xfs_dqvopalloc = (xfs_dqvopalloc_t) fs_noerr, 123 .xfs_dqvopcreate = (xfs_dqvopcreate_t) fs_noerr, 124 .xfs_dqvoprename = (xfs_dqvoprename_t) fs_noerr, 125 .xfs_dqvopchown = xfs_dqvopchown_default, 126 .xfs_dqvopchownresv = (xfs_dqvopchownresv_t) fs_noerr, 127}; 128