1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
8 #include "xfs_shared.h"
9 #include "xfs_format.h"
10 #include "xfs_log_format.h"
11 #include "xfs_trans_resv.h"
12 #include "xfs_mount.h"
13 #include "xfs_inode.h"
14 #include "xfs_quota.h"
15 #include "xfs_trans.h"
16 #include "xfs_buf_item.h"
17 #include "xfs_trans_priv.h"
20 #include "xfs_log_priv.h"
21 #include "xfs_log_recover.h"
24 xlog_recover_dquot_ra_pass2(
26 struct xlog_recover_item *item)
28 struct xfs_mount *mp = log->l_mp;
29 struct xfs_disk_dquot *recddq;
30 struct xfs_dq_logformat *dq_f;
33 if (mp->m_qflags == 0)
36 recddq = item->ri_buf[1].i_addr;
39 if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
42 type = recddq->d_type & XFS_DQTYPE_REC_MASK;
44 if (log->l_quotaoffs_flag & type)
47 dq_f = item->ri_buf[0].i_addr;
49 ASSERT(dq_f->qlf_len == 1);
51 xlog_buf_readahead(log, dq_f->qlf_blkno,
52 XFS_FSB_TO_BB(mp, dq_f->qlf_len),
53 &xfs_dquot_buf_ra_ops);
57 * Recover a dquot record
60 xlog_recover_dquot_commit_pass2(
62 struct list_head *buffer_list,
63 struct xlog_recover_item *item,
64 xfs_lsn_t current_lsn)
66 struct xfs_mount *mp = log->l_mp;
68 struct xfs_dqblk *dqb;
69 struct xfs_disk_dquot *ddq, *recddq;
70 struct xfs_dq_logformat *dq_f;
76 * Filesystems are required to send in quota flags at mount time.
78 if (mp->m_qflags == 0)
81 recddq = item->ri_buf[1].i_addr;
83 xfs_alert(log->l_mp, "NULL dquot in %s.", __func__);
86 if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot)) {
87 xfs_alert(log->l_mp, "dquot too small (%d) in %s.",
88 item->ri_buf[1].i_len, __func__);
93 * This type of quotas was turned off, so ignore this record.
95 type = recddq->d_type & XFS_DQTYPE_REC_MASK;
97 if (log->l_quotaoffs_flag & type)
101 * At this point we know that quota was _not_ turned off.
102 * Since the mount flags are not indicating to us otherwise, this
103 * must mean that quota is on, and the dquot needs to be replayed.
104 * Remember that we may not have fully recovered the superblock yet,
105 * so we can't do the usual trick of looking at the SB quota bits.
107 * The other possibility, of course, is that the quota subsystem was
108 * removed since the last mount - ENOSYS.
110 dq_f = item->ri_buf[0].i_addr;
112 fa = xfs_dquot_verify(mp, recddq, dq_f->qlf_id);
114 xfs_alert(mp, "corrupt dquot ID 0x%x in log at %pS",
116 return -EFSCORRUPTED;
118 ASSERT(dq_f->qlf_len == 1);
121 * At this point we are assuming that the dquots have been allocated
122 * and hence the buffer has valid dquots stamped in it. It should,
123 * therefore, pass verifier validation. If the dquot is bad, then the
124 * we'll return an error here, so we don't need to specifically check
125 * the dquot in the buffer after the verifier has run.
127 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dq_f->qlf_blkno,
128 XFS_FSB_TO_BB(mp, dq_f->qlf_len), 0, &bp,
134 dqb = xfs_buf_offset(bp, dq_f->qlf_boffset);
135 ddq = &dqb->dd_diskdq;
138 * If the dquot has an LSN in it, recover the dquot only if it's less
139 * than the lsn of the transaction we are replaying.
141 if (xfs_has_crc(mp)) {
142 xfs_lsn_t lsn = be64_to_cpu(dqb->dd_lsn);
144 if (lsn && lsn != -1 && XFS_LSN_CMP(lsn, current_lsn) >= 0) {
149 memcpy(ddq, recddq, item->ri_buf[1].i_len);
150 if (xfs_has_crc(mp)) {
151 xfs_update_cksum((char *)dqb, sizeof(struct xfs_dqblk),
155 ASSERT(dq_f->qlf_size == 2);
156 ASSERT(bp->b_mount == mp);
157 bp->b_flags |= _XBF_LOGRECOVERY;
158 xfs_buf_delwri_queue(bp, buffer_list);
165 const struct xlog_recover_item_ops xlog_dquot_item_ops = {
166 .item_type = XFS_LI_DQUOT,
167 .ra_pass2 = xlog_recover_dquot_ra_pass2,
168 .commit_pass2 = xlog_recover_dquot_commit_pass2,
172 * Recover QUOTAOFF records. We simply make a note of it in the xlog
173 * structure, so that we know not to do any dquot item or dquot buffer recovery,
177 xlog_recover_quotaoff_commit_pass1(
179 struct xlog_recover_item *item)
181 struct xfs_qoff_logformat *qoff_f = item->ri_buf[0].i_addr;
185 * The logitem format's flag tells us if this was user quotaoff,
186 * group/project quotaoff or both.
188 if (qoff_f->qf_flags & XFS_UQUOTA_ACCT)
189 log->l_quotaoffs_flag |= XFS_DQTYPE_USER;
190 if (qoff_f->qf_flags & XFS_PQUOTA_ACCT)
191 log->l_quotaoffs_flag |= XFS_DQTYPE_PROJ;
192 if (qoff_f->qf_flags & XFS_GQUOTA_ACCT)
193 log->l_quotaoffs_flag |= XFS_DQTYPE_GROUP;
198 const struct xlog_recover_item_ops xlog_quotaoff_item_ops = {
199 .item_type = XFS_LI_QUOTAOFF,
200 .commit_pass1 = xlog_recover_quotaoff_commit_pass1,
201 /* nothing to commit in pass2 */