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authorEric Sandeen <sandeen@sandeen.net>2014-08-04 05:35:44 +0400
committerDave Chinner <david@fromorbit.com>2014-08-04 05:35:44 +0400
commit5ef828c4152726f56751c78ea844f08d2b2a4fa3 (patch)
tree3923a30181baef2d2e4c53bb0e569d7d4046a1c3 /fs/xfs/libxfs
parenteedf32bfcace7d8e20cc66757d74fc68f3439ff7 (diff)
downloadlinux-5ef828c4152726f56751c78ea844f08d2b2a4fa3.tar.xz
xfs: avoid false quotacheck after unclean shutdown
The commit 83e782e xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD added a new function xfs_sb_quota_from_disk() which swaps on-disk XFS_OQUOTA_* flags for in-core XFS_GQUOTA_* and XFS_PQUOTA_* flags after the superblock is read. However, if log recovery is required, the superblock is read again, and the modified in-core flags are re-read from disk, so we have XFS_OQUOTA_* flags in memory again. This causes the XFS_QM_NEED_QUOTACHECK() test to be true, because the XFS_OQUOTA_CHKD is still set, and not XFS_GQUOTA_CHKD or XFS_PQUOTA_CHKD. Change xfs_sb_from_disk to call xfs_sb_quota_from disk and always convert the disk flags to in-memory flags. Add a lower-level function which can be called with "false" to not convert the flags, so that the sb verifier can verify exactly what was on disk, per Brian Foster's suggestion. Reported-by: Cyril B. <cbay@excellency.fr> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r--fs/xfs/libxfs/xfs_sb.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index f5ca0286a0af..8db9e923a53e 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -386,10 +386,11 @@ xfs_sb_quota_from_disk(struct xfs_sb *sbp)
}
}
-void
-xfs_sb_from_disk(
+static void
+__xfs_sb_from_disk(
struct xfs_sb *to,
- xfs_dsb_t *from)
+ xfs_dsb_t *from,
+ bool convert_xquota)
{
to->sb_magicnum = be32_to_cpu(from->sb_magicnum);
to->sb_blocksize = be32_to_cpu(from->sb_blocksize);
@@ -445,6 +446,17 @@ xfs_sb_from_disk(
to->sb_pad = 0;
to->sb_pquotino = be64_to_cpu(from->sb_pquotino);
to->sb_lsn = be64_to_cpu(from->sb_lsn);
+ /* Convert on-disk flags to in-memory flags? */
+ if (convert_xquota)
+ xfs_sb_quota_from_disk(to);
+}
+
+void
+xfs_sb_from_disk(
+ struct xfs_sb *to,
+ xfs_dsb_t *from)
+{
+ __xfs_sb_from_disk(to, from, true);
}
static inline void
@@ -560,7 +572,11 @@ xfs_sb_verify(
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_sb sb;
- xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp));
+ /*
+ * Use call variant which doesn't convert quota flags from disk
+ * format, because xfs_mount_validate_sb checks the on-disk flags.
+ */
+ __xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp), false);
/*
* Only check the in progress field for the primary superblock as