B_SYNC
if (flags & B_SYNC)
if (flags & B_SYNC) {
if (flags & B_SYNC) {
if (flags & B_SYNC) {
aflags |= B_SYNC;
if (aflags & B_SYNC)
aflags |= B_SYNC;
if (aflags & B_SYNC)
flags |= B_SYNC;
flags |= B_SYNC;