diff options
Diffstat (limited to 'kernel/fs/xfs/xfs_super.c')
| -rw-r--r-- | kernel/fs/xfs/xfs_super.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/fs/xfs/xfs_super.c b/kernel/fs/xfs/xfs_super.c index 36bd8825b..ef64a1e1a 100644 --- a/kernel/fs/xfs/xfs_super.c +++ b/kernel/fs/xfs/xfs_super.c @@ -1233,6 +1233,16 @@ xfs_fs_remount( return -EINVAL; } + if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + xfs_sb_has_ro_compat_feature(sbp, + XFS_SB_FEAT_RO_COMPAT_UNKNOWN)) { + xfs_warn(mp, +"ro->rw transition prohibited on unknown (0x%x) ro-compat filesystem", + (sbp->sb_features_ro_compat & + XFS_SB_FEAT_RO_COMPAT_UNKNOWN)); + return -EINVAL; + } + mp->m_flags &= ~XFS_MOUNT_RDONLY; /* |