LO_FLAGS_READ_ONLY
lo->lo_flags |= LO_FLAGS_READ_ONLY;
set_disk_ro(lo->lo_disk, (lo->lo_flags & LO_FLAGS_READ_ONLY) != 0);
if (write && (lo->lo_flags & LO_FLAGS_READ_ONLY)) {
if (!(lo->lo_flags & LO_FLAGS_READ_ONLY))
if (file->f_op->fsync && !(lo->lo_flags & LO_FLAGS_READ_ONLY))
#define LOOP_CONFIGURE_SETTABLE_FLAGS (LO_FLAGS_READ_ONLY | LO_FLAGS_AUTOCLEAR \