BUF_TIMELOCK
error = BUF_TIMELOCK(bp, lkflags, "getblk", slptimeo);
error = BUF_TIMELOCK(bp, info->lkflags,
if (BUF_TIMELOCK(bp, LK_EXCLUSIVE, "bflst2", hz / 10)) {
if (BUF_TIMELOCK(bp, LK_EXCLUSIVE, "bflst3", hz * 10)) {
error = BUF_TIMELOCK(bp, lkflags, "nfsfsync",