NFS_LAYOUT_INVALID_STID
if (!lo || test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) ||
clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
lo->plh_flags |= 1 << NFS_LAYOUT_INVALID_STID;
if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) {
if (!test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags))
if (test_and_set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags))
set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) ||
return test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) == 0;