1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * Copyright (c) 2000-2006 Silicon Graphics, I 3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
4 * All Rights Reserved. 4 * All Rights Reserved.
5 */ 5 */
6 #include "xfs.h" 6 #include "xfs.h"
7 #include "xfs_fs.h" 7 #include "xfs_fs.h"
8 #include "xfs_shared.h" 8 #include "xfs_shared.h"
9 #include "xfs_format.h" 9 #include "xfs_format.h"
10 #include "xfs_log_format.h" 10 #include "xfs_log_format.h"
11 #include "xfs_trans_resv.h" 11 #include "xfs_trans_resv.h"
12 #include "xfs_mount.h" 12 #include "xfs_mount.h"
13 #include "xfs_inode.h" 13 #include "xfs_inode.h"
14 #include "xfs_quota.h" 14 #include "xfs_quota.h"
15 #include "xfs_trans.h" 15 #include "xfs_trans.h"
16 #include "xfs_buf_item.h" 16 #include "xfs_buf_item.h"
17 #include "xfs_trans_priv.h" 17 #include "xfs_trans_priv.h"
18 #include "xfs_qm.h" 18 #include "xfs_qm.h"
19 #include "xfs_log.h" 19 #include "xfs_log.h"
20 #include "xfs_log_priv.h" 20 #include "xfs_log_priv.h"
21 #include "xfs_log_recover.h" 21 #include "xfs_log_recover.h"
22 #include "xfs_error.h" 22 #include "xfs_error.h"
23 23
24 STATIC void 24 STATIC void
25 xlog_recover_dquot_ra_pass2( 25 xlog_recover_dquot_ra_pass2(
26 struct xlog *log, 26 struct xlog *log,
27 struct xlog_recover_item *item) 27 struct xlog_recover_item *item)
28 { 28 {
29 struct xfs_mount *mp = log->l_m 29 struct xfs_mount *mp = log->l_mp;
30 struct xfs_disk_dquot *recddq; 30 struct xfs_disk_dquot *recddq;
31 struct xfs_dq_logformat *dq_f; 31 struct xfs_dq_logformat *dq_f;
32 uint type; 32 uint type;
33 33
34 if (mp->m_qflags == 0) 34 if (mp->m_qflags == 0)
35 return; 35 return;
36 36
37 recddq = item->ri_buf[1].i_addr; 37 recddq = item->ri_buf[1].i_addr;
38 if (recddq == NULL) 38 if (recddq == NULL)
39 return; 39 return;
40 if (item->ri_buf[1].i_len < sizeof(str 40 if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
41 return; 41 return;
42 42
43 type = recddq->d_type & XFS_DQTYPE_REC 43 type = recddq->d_type & XFS_DQTYPE_REC_MASK;
44 ASSERT(type); 44 ASSERT(type);
45 if (log->l_quotaoffs_flag & type) 45 if (log->l_quotaoffs_flag & type)
46 return; 46 return;
47 47
48 dq_f = item->ri_buf[0].i_addr; 48 dq_f = item->ri_buf[0].i_addr;
49 ASSERT(dq_f); 49 ASSERT(dq_f);
50 ASSERT(dq_f->qlf_len == 1); 50 ASSERT(dq_f->qlf_len == 1);
51 51
52 xlog_buf_readahead(log, dq_f->qlf_blkn 52 xlog_buf_readahead(log, dq_f->qlf_blkno,
53 XFS_FSB_TO_BB(mp, dq_f 53 XFS_FSB_TO_BB(mp, dq_f->qlf_len),
54 &xfs_dquot_buf_ra_ops) 54 &xfs_dquot_buf_ra_ops);
55 } 55 }
56 56
57 /* 57 /*
58 * Recover a dquot record 58 * Recover a dquot record
59 */ 59 */
60 STATIC int 60 STATIC int
61 xlog_recover_dquot_commit_pass2( 61 xlog_recover_dquot_commit_pass2(
62 struct xlog *log, 62 struct xlog *log,
63 struct list_head *buffe 63 struct list_head *buffer_list,
64 struct xlog_recover_item *item, 64 struct xlog_recover_item *item,
65 xfs_lsn_t curren 65 xfs_lsn_t current_lsn)
66 { 66 {
67 struct xfs_mount *mp = 67 struct xfs_mount *mp = log->l_mp;
68 struct xfs_buf *bp; 68 struct xfs_buf *bp;
69 struct xfs_dqblk *dqb; 69 struct xfs_dqblk *dqb;
70 struct xfs_disk_dquot *ddq, 70 struct xfs_disk_dquot *ddq, *recddq;
71 struct xfs_dq_logformat *dq_f; 71 struct xfs_dq_logformat *dq_f;
72 xfs_failaddr_t fa; 72 xfs_failaddr_t fa;
73 int error; 73 int error;
74 uint type; 74 uint type;
75 75
76 /* 76 /*
77 * Filesystems are required to send in 77 * Filesystems are required to send in quota flags at mount time.
78 */ 78 */
79 if (mp->m_qflags == 0) 79 if (mp->m_qflags == 0)
80 return 0; 80 return 0;
81 81
82 recddq = item->ri_buf[1].i_addr; 82 recddq = item->ri_buf[1].i_addr;
83 if (recddq == NULL) { 83 if (recddq == NULL) {
84 xfs_alert(log->l_mp, "NULL dqu 84 xfs_alert(log->l_mp, "NULL dquot in %s.", __func__);
85 return -EFSCORRUPTED; 85 return -EFSCORRUPTED;
86 } 86 }
87 if (item->ri_buf[1].i_len < sizeof(str 87 if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot)) {
88 xfs_alert(log->l_mp, "dquot to 88 xfs_alert(log->l_mp, "dquot too small (%d) in %s.",
89 item->ri_buf[1].i_len, 89 item->ri_buf[1].i_len, __func__);
90 return -EFSCORRUPTED; 90 return -EFSCORRUPTED;
91 } 91 }
92 92
93 /* 93 /*
94 * This type of quotas was turned off, 94 * This type of quotas was turned off, so ignore this record.
95 */ 95 */
96 type = recddq->d_type & XFS_DQTYPE_REC 96 type = recddq->d_type & XFS_DQTYPE_REC_MASK;
97 ASSERT(type); 97 ASSERT(type);
98 if (log->l_quotaoffs_flag & type) 98 if (log->l_quotaoffs_flag & type)
99 return 0; 99 return 0;
100 100
101 /* 101 /*
102 * At this point we know that quota wa 102 * At this point we know that quota was _not_ turned off.
103 * Since the mount flags are not indic 103 * Since the mount flags are not indicating to us otherwise, this
104 * must mean that quota is on, and the 104 * must mean that quota is on, and the dquot needs to be replayed.
105 * Remember that we may not have fully 105 * Remember that we may not have fully recovered the superblock yet,
106 * so we can't do the usual trick of l 106 * so we can't do the usual trick of looking at the SB quota bits.
107 * 107 *
108 * The other possibility, of course, i 108 * The other possibility, of course, is that the quota subsystem was
109 * removed since the last mount - ENOS 109 * removed since the last mount - ENOSYS.
110 */ 110 */
111 dq_f = item->ri_buf[0].i_addr; 111 dq_f = item->ri_buf[0].i_addr;
112 ASSERT(dq_f); 112 ASSERT(dq_f);
113 fa = xfs_dquot_verify(mp, recddq, dq_f 113 fa = xfs_dquot_verify(mp, recddq, dq_f->qlf_id);
114 if (fa) { 114 if (fa) {
115 xfs_alert(mp, "corrupt dquot I 115 xfs_alert(mp, "corrupt dquot ID 0x%x in log at %pS",
116 dq_f->qlf_id, 116 dq_f->qlf_id, fa);
117 return -EFSCORRUPTED; 117 return -EFSCORRUPTED;
118 } 118 }
119 ASSERT(dq_f->qlf_len == 1); 119 ASSERT(dq_f->qlf_len == 1);
120 120
121 /* 121 /*
122 * At this point we are assuming that 122 * At this point we are assuming that the dquots have been allocated
123 * and hence the buffer has valid dquo 123 * and hence the buffer has valid dquots stamped in it. It should,
124 * therefore, pass verifier validation 124 * therefore, pass verifier validation. If the dquot is bad, then the
125 * we'll return an error here, so we d 125 * we'll return an error here, so we don't need to specifically check
126 * the dquot in the buffer after the v 126 * the dquot in the buffer after the verifier has run.
127 */ 127 */
128 error = xfs_trans_read_buf(mp, NULL, m 128 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dq_f->qlf_blkno,
129 XFS_FSB_TO_ 129 XFS_FSB_TO_BB(mp, dq_f->qlf_len), 0, &bp,
130 &xfs_dquot_ 130 &xfs_dquot_buf_ops);
131 if (error) 131 if (error)
132 return error; 132 return error;
133 133
134 ASSERT(bp); 134 ASSERT(bp);
135 dqb = xfs_buf_offset(bp, dq_f->qlf_bof 135 dqb = xfs_buf_offset(bp, dq_f->qlf_boffset);
136 ddq = &dqb->dd_diskdq; 136 ddq = &dqb->dd_diskdq;
137 137
138 /* 138 /*
139 * If the dquot has an LSN in it, reco 139 * If the dquot has an LSN in it, recover the dquot only if it's less
140 * than the lsn of the transaction we 140 * than the lsn of the transaction we are replaying.
141 */ 141 */
142 if (xfs_has_crc(mp)) { 142 if (xfs_has_crc(mp)) {
143 xfs_lsn_t lsn = be64_to_ 143 xfs_lsn_t lsn = be64_to_cpu(dqb->dd_lsn);
144 144
145 if (lsn && lsn != -1 && XFS_LS 145 if (lsn && lsn != -1 && XFS_LSN_CMP(lsn, current_lsn) >= 0) {
146 goto out_release; 146 goto out_release;
147 } 147 }
148 } 148 }
149 149
150 memcpy(ddq, recddq, item->ri_buf[1].i_ 150 memcpy(ddq, recddq, item->ri_buf[1].i_len);
151 if (xfs_has_crc(mp)) { 151 if (xfs_has_crc(mp)) {
152 xfs_update_cksum((char *)dqb, 152 xfs_update_cksum((char *)dqb, sizeof(struct xfs_dqblk),
153 XFS_DQUOT_CRC 153 XFS_DQUOT_CRC_OFF);
154 } 154 }
155 155
156 /* Validate the recovered dquot. */ 156 /* Validate the recovered dquot. */
157 fa = xfs_dqblk_verify(log->l_mp, dqb, 157 fa = xfs_dqblk_verify(log->l_mp, dqb, dq_f->qlf_id);
158 if (fa) { 158 if (fa) {
159 XFS_CORRUPTION_ERROR("Bad dquo 159 XFS_CORRUPTION_ERROR("Bad dquot after recovery",
160 XFS_ERRLEVEL_L 160 XFS_ERRLEVEL_LOW, mp, dqb,
161 sizeof(struct 161 sizeof(struct xfs_dqblk));
162 xfs_alert(mp, 162 xfs_alert(mp,
163 "Metadata corruption detected at %pS, dquot 0 163 "Metadata corruption detected at %pS, dquot 0x%x",
164 fa, dq_f->qlf_ 164 fa, dq_f->qlf_id);
165 error = -EFSCORRUPTED; 165 error = -EFSCORRUPTED;
166 goto out_release; 166 goto out_release;
167 } 167 }
168 168
169 ASSERT(dq_f->qlf_size == 2); 169 ASSERT(dq_f->qlf_size == 2);
170 ASSERT(bp->b_mount == mp); 170 ASSERT(bp->b_mount == mp);
171 bp->b_flags |= _XBF_LOGRECOVERY; 171 bp->b_flags |= _XBF_LOGRECOVERY;
172 xfs_buf_delwri_queue(bp, buffer_list); 172 xfs_buf_delwri_queue(bp, buffer_list);
173 173
174 out_release: 174 out_release:
175 xfs_buf_relse(bp); 175 xfs_buf_relse(bp);
176 return 0; 176 return 0;
177 } 177 }
178 178
179 const struct xlog_recover_item_ops xlog_dquot_ 179 const struct xlog_recover_item_ops xlog_dquot_item_ops = {
180 .item_type = XFS_LI_DQUOT 180 .item_type = XFS_LI_DQUOT,
181 .ra_pass2 = xlog_recover 181 .ra_pass2 = xlog_recover_dquot_ra_pass2,
182 .commit_pass2 = xlog_recover 182 .commit_pass2 = xlog_recover_dquot_commit_pass2,
183 }; 183 };
184 184
185 /* 185 /*
186 * Recover QUOTAOFF records. We simply make a 186 * Recover QUOTAOFF records. We simply make a note of it in the xlog
187 * structure, so that we know not to do any dq 187 * structure, so that we know not to do any dquot item or dquot buffer recovery,
188 * of that type. 188 * of that type.
189 */ 189 */
190 STATIC int 190 STATIC int
191 xlog_recover_quotaoff_commit_pass1( 191 xlog_recover_quotaoff_commit_pass1(
192 struct xlog *log, 192 struct xlog *log,
193 struct xlog_recover_item *item) 193 struct xlog_recover_item *item)
194 { 194 {
195 struct xfs_qoff_logformat *qoff_ 195 struct xfs_qoff_logformat *qoff_f = item->ri_buf[0].i_addr;
196 ASSERT(qoff_f); 196 ASSERT(qoff_f);
197 197
198 /* 198 /*
199 * The logitem format's flag tells us 199 * The logitem format's flag tells us if this was user quotaoff,
200 * group/project quotaoff or both. 200 * group/project quotaoff or both.
201 */ 201 */
202 if (qoff_f->qf_flags & XFS_UQUOTA_ACCT 202 if (qoff_f->qf_flags & XFS_UQUOTA_ACCT)
203 log->l_quotaoffs_flag |= XFS_D 203 log->l_quotaoffs_flag |= XFS_DQTYPE_USER;
204 if (qoff_f->qf_flags & XFS_PQUOTA_ACCT 204 if (qoff_f->qf_flags & XFS_PQUOTA_ACCT)
205 log->l_quotaoffs_flag |= XFS_D 205 log->l_quotaoffs_flag |= XFS_DQTYPE_PROJ;
206 if (qoff_f->qf_flags & XFS_GQUOTA_ACCT 206 if (qoff_f->qf_flags & XFS_GQUOTA_ACCT)
207 log->l_quotaoffs_flag |= XFS_D 207 log->l_quotaoffs_flag |= XFS_DQTYPE_GROUP;
208 208
209 return 0; 209 return 0;
210 } 210 }
211 211
212 const struct xlog_recover_item_ops xlog_quotao 212 const struct xlog_recover_item_ops xlog_quotaoff_item_ops = {
213 .item_type = XFS_LI_QUOTA 213 .item_type = XFS_LI_QUOTAOFF,
214 .commit_pass1 = xlog_recover 214 .commit_pass1 = xlog_recover_quotaoff_commit_pass1,
215 /* nothing to commit in pass2 */ 215 /* nothing to commit in pass2 */
216 }; 216 };
217 217
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