XFS_BUF_FSPRIVATE3 860 fs/xfs/linux-2.6/xfs_lrw.c mp = XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *); XFS_BUF_FSPRIVATE3 710 fs/xfs/xfs_buf_item.c if (XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *) != mp)