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Diffstat (limited to 'fs/xfs/xfs_mount.c')
-rw-r--r--fs/xfs/xfs_mount.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2978bb4cc72a..2b0ba3581656 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -336,6 +336,14 @@ xfs_mount_validate_sb(
return XFS_ERROR(EWRONGFS);
}
+ if ((sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) &&
+ (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
+ XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))) {
+ xfs_notice(mp,
+"Super block has XFS_OQUOTA bits along with XFS_PQUOTA and/or XFS_GQUOTA bits.\n");
+ return XFS_ERROR(EFSCORRUPTED);
+ }
+
/*
* Version 5 superblock feature mask validation. Reject combinations the
* kernel cannot support up front before checking anything else. For
@@ -561,6 +569,18 @@ out_unwind:
return error;
}
+static void
+xfs_sb_quota_from_disk(struct xfs_sb *sbp)
+{
+ if (sbp->sb_qflags & XFS_OQUOTA_ENFD)
+ sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
+ XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD;
+ if (sbp->sb_qflags & XFS_OQUOTA_CHKD)
+ sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
+ XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD;
+ sbp->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD);
+}
+
void
xfs_sb_from_disk(
struct xfs_sb *to,
@@ -622,6 +642,35 @@ xfs_sb_from_disk(
to->sb_lsn = be64_to_cpu(from->sb_lsn);
}
+static inline void
+xfs_sb_quota_to_disk(
+ xfs_dsb_t *to,
+ xfs_sb_t *from,
+ __int64_t *fields)
+{
+ __uint16_t qflags = from->sb_qflags;
+
+ if (*fields & XFS_SB_QFLAGS) {
+ /*
+ * The in-core version of sb_qflags do not have
+ * XFS_OQUOTA_* flags, whereas the on-disk version
+ * does. So, convert incore XFS_{PG}QUOTA_* flags
+ * to on-disk XFS_OQUOTA_* flags.
+ */
+ qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
+ XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
+
+ if (from->sb_qflags &
+ (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
+ qflags |= XFS_OQUOTA_ENFD;
+ if (from->sb_qflags &
+ (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
+ qflags |= XFS_OQUOTA_CHKD;
+ to->sb_qflags = cpu_to_be16(qflags);
+ *fields &= ~XFS_SB_QFLAGS;
+ }
+}
+
/*
* Copy in core superblock to ondisk one.
*
@@ -643,6 +692,7 @@ xfs_sb_to_disk(
if (!fields)
return;
+ xfs_sb_quota_to_disk(to, from, &fields);
while (fields) {
f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
first = xfs_sb_info[f].offset;
@@ -835,6 +885,7 @@ reread:
*/
xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
+ xfs_sb_quota_from_disk(&mp->m_sb);
/*
* We must be able to do sector-sized and sector-aligned IO.
*/