+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Oracle. All Rights Reserved.
- *
* Author: Darrick J. Wong <darrick.wong@oracle.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "xfs.h"
#include "xfs_fs.h"
struct xfs_inode *ip)
{
uint dqtype;
+ int error;
+
+ if (!XFS_IS_QUOTA_RUNNING(sc->mp) || !XFS_IS_QUOTA_ON(sc->mp))
+ return -ENOENT;
dqtype = xfs_scrub_quota_to_dqtype(sc);
if (dqtype == 0)
return -EINVAL;
+ sc->has_quotaofflock = true;
+ mutex_lock(&sc->mp->m_quotainfo->qi_quotaofflock);
if (!xfs_this_quota_on(sc->mp, dqtype))
return -ENOENT;
+ error = xfs_scrub_setup_fs(sc, ip);
+ if (error)
+ return error;
+ sc->ip = xfs_quota_inode(sc->mp, dqtype);
+ xfs_ilock(sc->ip, XFS_ILOCK_EXCL);
+ sc->ilock_flags = XFS_ILOCK_EXCL;
return 0;
}
/* Quotas. */
+struct xfs_scrub_quota_info {
+ struct xfs_scrub_context *sc;
+ xfs_dqid_t last_id;
+};
+
/* Scrub the fields in an individual quota item. */
-STATIC void
+STATIC int
xfs_scrub_quota_item(
- struct xfs_scrub_context *sc,
- uint dqtype,
struct xfs_dquot *dq,
- xfs_dqid_t id)
+ uint dqtype,
+ void *priv)
{
+ struct xfs_scrub_quota_info *sqi = priv;
+ struct xfs_scrub_context *sc = sqi->sc;
struct xfs_mount *mp = sc->mp;
struct xfs_disk_dquot *d = &dq->q_core;
struct xfs_quotainfo *qi = mp->m_quotainfo;
unsigned long long icount;
unsigned long long rcount;
xfs_ino_t fs_icount;
-
- offset = id / qi->qi_dqperchunk;
+ xfs_dqid_t id = be32_to_cpu(d->d_id);
/*
- * We fed $id and DQNEXT into the xfs_qm_dqget call, which means
- * that the actual dquot we got must either have the same id or
- * the next higher id.
+ * Except for the root dquot, the actual dquot we got must either have
+ * the same or higher id as we saw before.
*/
- if (id > be32_to_cpu(d->d_id))
+ offset = id / qi->qi_dqperchunk;
+ if (id && id <= sqi->last_id)
xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+ sqi->last_id = id;
+
/* Did we get the dquot type we wanted? */
if (dqtype != (d->d_flags & XFS_DQ_ALLTYPES))
xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
if (id != 0 && rhard != 0 && rcount > rhard)
xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+
+ return 0;
}
-/* Scrub all of a quota type's items. */
-int
-xfs_scrub_quota(
+/* Check the quota's data fork. */
+STATIC int
+xfs_scrub_quota_data_fork(
struct xfs_scrub_context *sc)
{
struct xfs_bmbt_irec irec = { 0 };
- struct xfs_mount *mp = sc->mp;
- struct xfs_inode *ip;
- struct xfs_quotainfo *qi = mp->m_quotainfo;
- struct xfs_dquot *dq;
+ struct xfs_iext_cursor icur;
+ struct xfs_quotainfo *qi = sc->mp->m_quotainfo;
+ struct xfs_ifork *ifp;
xfs_fileoff_t max_dqid_off;
- xfs_fileoff_t off = 0;
- xfs_dqid_t id = 0;
- uint dqtype;
- int nimaps;
int error = 0;
- if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
- return -ENOENT;
-
- mutex_lock(&qi->qi_quotaofflock);
- dqtype = xfs_scrub_quota_to_dqtype(sc);
- if (!xfs_this_quota_on(sc->mp, dqtype)) {
- error = -ENOENT;
- goto out_unlock_quota;
- }
-
- /* Attach to the quota inode and set sc->ip so that reporting works. */
- ip = xfs_quota_inode(sc->mp, dqtype);
- sc->ip = ip;
+ /* Invoke the fork scrubber. */
+ error = xfs_scrub_metadata_inode_forks(sc);
+ if (error || (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
+ return error;
- /* Look for problem extents. */
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
- xfs_scrub_ino_set_corrupt(sc, sc->ip->i_ino);
- goto out_unlock_inode;
- }
+ /* Check for data fork problems that apply only to quota files. */
max_dqid_off = ((xfs_dqid_t)-1) / qi->qi_dqperchunk;
- while (1) {
+ ifp = XFS_IFORK_PTR(sc->ip, XFS_DATA_FORK);
+ for_each_xfs_iext(ifp, &icur, &irec) {
if (xfs_scrub_should_terminate(sc, &error))
break;
-
- off = irec.br_startoff + irec.br_blockcount;
- nimaps = 1;
- error = xfs_bmapi_read(ip, off, -1, &irec, &nimaps,
- XFS_BMAPI_ENTIRE);
- if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, off,
- &error))
- goto out_unlock_inode;
- if (!nimaps)
- break;
- if (irec.br_startblock == HOLESTARTBLOCK)
- continue;
-
- /* Check the extent record doesn't point to crap. */
- if (irec.br_startblock + irec.br_blockcount <=
- irec.br_startblock)
- xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
- irec.br_startoff);
- if (!xfs_verify_fsbno(mp, irec.br_startblock) ||
- !xfs_verify_fsbno(mp, irec.br_startblock +
- irec.br_blockcount - 1))
- xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
- irec.br_startoff);
-
/*
- * Unwritten extents or blocks mapped above the highest
+ * delalloc extents or blocks mapped above the highest
* quota id shouldn't happen.
*/
if (isnullstartblock(irec.br_startblock) ||
irec.br_startoff > max_dqid_off ||
- irec.br_startoff + irec.br_blockcount > max_dqid_off + 1)
- xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, off);
+ irec.br_startoff + irec.br_blockcount - 1 > max_dqid_off) {
+ xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+ irec.br_startoff);
+ break;
+ }
}
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
- goto out;
- /* Check all the quota items. */
- while (id < ((xfs_dqid_t)-1ULL)) {
- if (xfs_scrub_should_terminate(sc, &error))
- break;
+ return error;
+}
- error = xfs_qm_dqget(mp, NULL, id, dqtype, XFS_QMOPT_DQNEXT,
- &dq);
- if (error == -ENOENT)
- break;
- if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK,
- id * qi->qi_dqperchunk, &error))
- break;
+/* Scrub all of a quota type's items. */
+int
+xfs_scrub_quota(
+ struct xfs_scrub_context *sc)
+{
+ struct xfs_scrub_quota_info sqi;
+ struct xfs_mount *mp = sc->mp;
+ struct xfs_quotainfo *qi = mp->m_quotainfo;
+ uint dqtype;
+ int error = 0;
- xfs_scrub_quota_item(sc, dqtype, dq, id);
+ dqtype = xfs_scrub_quota_to_dqtype(sc);
- id = be32_to_cpu(dq->q_core.d_id) + 1;
- xfs_qm_dqput(dq);
- if (!id)
- break;
- }
+ /* Look for problem extents. */
+ error = xfs_scrub_quota_data_fork(sc);
+ if (error)
+ goto out;
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ goto out;
+
+ /*
+ * Check all the quota items. Now that we've checked the quota inode
+ * data fork we have to drop ILOCK_EXCL to use the regular dquot
+ * functions.
+ */
+ xfs_iunlock(sc->ip, sc->ilock_flags);
+ sc->ilock_flags = 0;
+ sqi.sc = sc;
+ sqi.last_id = 0;
+ error = xfs_qm_dqiterate(mp, dqtype, xfs_scrub_quota_item, &sqi);
+ sc->ilock_flags = XFS_ILOCK_EXCL;
+ xfs_ilock(sc->ip, sc->ilock_flags);
+ if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK,
+ sqi.last_id * qi->qi_dqperchunk, &error))
+ goto out;
out:
- /* We set sc->ip earlier, so make sure we clear it now. */
- sc->ip = NULL;
-out_unlock_quota:
- mutex_unlock(&qi->qi_quotaofflock);
return error;
-
-out_unlock_inode:
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- goto out;
}
projects / linux-2.6-block.git / blobdiff