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  /src/sys/miscfs/specfs/
spec_vnops.c 1093 int i, nra; local
1145 nra = uimax(16 * MAXPHYS / bsize - 1, 511);
1146 rablks = kmem_alloc(nra * sizeof(*rablks), KM_SLEEP);
1147 rasizes = kmem_alloc(nra * sizeof(*rasizes), KM_SLEEP);
1157 nrablks = uimin((lastbn - bn) / bscale, nra);
1180 kmem_free(rablks, nra * sizeof(*rablks));
1181 kmem_free(rasizes, nra * sizeof(*rasizes));
  /src/sys/fs/nfs/client/
nfs_clbio.c 414 int nra, error = 0, n = 0, on = 0; local
470 for (nra = 0; nra < nmp->nm_readahead && nra < seqcount &&
471 (off_t)(lbn + 1 + nra) * biosize < nsize; nra++) {
472 rabn = lbn + 1 + nra;
  /src/sys/dev/
vnd.c 896 int off, nra; local
898 nra = 0;
900 error = VOP_BMAP(vnd->sc_vp, bn / bsize, &vp, &nbn, &nra);
922 nra = 0;
926 sz = MIN(((off_t)1 + nra) * bsize - off, resid);
  /src/sys/uvm/
uvm_swap.c 1578 int off, nra, error, sz, resid; local
1597 * nra = num blocks we can read-ahead (excludes requested
1600 nra = 0;
1602 &devvp, &nbn, &nra);
1624 sz = (1 + nra) * sdp->swd_bsize - off;

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