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_dir.h" 27#include "xfs_dir2.h" 28#include "xfs_dmapi.h" 29#include "xfs_mount.h" 30#include "xfs_quota.h" 31#include "xfs_error.h" 32 33STATIC struct xfs_dquot * 34xfs_dqvopchown_default( 35 struct xfs_trans *tp, 36 struct xfs_inode *ip, 37 struct xfs_dquot **dqp, 38 struct xfs_dquot *dq) 39{ 40 return NULL; 41} 42 43/* 44 * Clear the quotaflags in memory and in the superblock. 45 */ 46int 47xfs_mount_reset_sbqflags(xfs_mount_t *mp) 48{ 49 int error; 50 xfs_trans_t *tp; 51 unsigned long s; 52 53 mp->m_qflags = 0; 54 /* 55 * It is OK to look at sb_qflags here in mount path, 56 * without SB_LOCK. 57 */ 58 if (mp->m_sb.sb_qflags == 0) 59 return 0; 60 s = XFS_SB_LOCK(mp); 61 mp->m_sb.sb_qflags = 0; 62 XFS_SB_UNLOCK(mp, s); 63 64 /* 65 * if the fs is readonly, let the incore superblock run 66 * with quotas off but don't flush the update out to disk 67 */ 68 if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY) 69 return 0; 70#ifdef QUOTADEBUG 71 xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes"); 72#endif 73 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); 74 if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0, 75 XFS_DEFAULT_LOG_COUNT))) { 76 xfs_trans_cancel(tp, 0); 77 xfs_fs_cmn_err(CE_ALERT, mp, 78 "xfs_mount_reset_sbqflags: Superblock update failed!"); 79 return error; 80 } 81 xfs_mod_sb(tp, XFS_SB_QFLAGS); 82 error = xfs_trans_commit(tp, 0, NULL); 83 return error; 84} 85 86STATIC int 87xfs_noquota_init( 88 xfs_mount_t *mp, 89 uint *needquotamount, 90 uint *quotaflags) 91{ 92 int error = 0; 93 94 *quotaflags = 0; 95 *needquotamount = B_FALSE; 96 97 ASSERT(!XFS_IS_QUOTA_ON(mp)); 98 99 /* 100 * If a file system had quotas running earlier, but decided to 101 * mount without -o uquota/pquota/gquota options, revoke the 102 * quotachecked license. 103 */ 104 if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) { 105 cmn_err(CE_NOTE, 106 "XFS resetting qflags for filesystem %s", 107 mp->m_fsname); 108 109 error = xfs_mount_reset_sbqflags(mp); 110 } 111 return error; 112} 113 114xfs_qmops_t xfs_qmcore_stub = { 115 .xfs_qminit = (xfs_qminit_t) xfs_noquota_init, 116 .xfs_qmdone = (xfs_qmdone_t) fs_noerr, 117 .xfs_qmmount = (xfs_qmmount_t) fs_noerr, 118 .xfs_qmunmount = (xfs_qmunmount_t) fs_noerr, 119 .xfs_dqrele = (xfs_dqrele_t) fs_noerr, 120 .xfs_dqattach = (xfs_dqattach_t) fs_noerr, 121 .xfs_dqdetach = (xfs_dqdetach_t) fs_noerr, 122 .xfs_dqpurgeall = (xfs_dqpurgeall_t) fs_noerr, 123 .xfs_dqvopalloc = (xfs_dqvopalloc_t) fs_noerr, 124 .xfs_dqvopcreate = (xfs_dqvopcreate_t) fs_noerr, 125 .xfs_dqvoprename = (xfs_dqvoprename_t) fs_noerr, 126 .xfs_dqvopchown = xfs_dqvopchown_default, 127 .xfs_dqvopchownresv = (xfs_dqvopchownresv_t) fs_noerr, 128}; 129