pc_blkatoff
error = pc_blkatoff(pcp, lfn_offset, &bp, &ep);
error = pc_blkatoff(pcp, offset, &bp, &ep);
error = pc_blkatoff(dp, offset, &bp, &ep);
error = pc_blkatoff(dp, offset, &bp, &ep);
error = pc_blkatoff(dp, offset, &bp, &ep);
if (error = pc_blkatoff(pcp, offset, &bp, &ep)) {
error = pc_blkatoff(tdp, offset, &bp, &ep);
error = pc_blkatoff(dp, (offset_t)0, &bp, &ep);
error = pc_blkatoff(dp, offset, &slotp->sl_bp, &ep);
error = pc_blkatoff(pcp, offset, &bp, &ep);
error = pc_blkatoff(pcp, *offset, bp, &ep);
error = pc_blkatoff(pcp, *offset, bp, &ep);
extern int pc_blkatoff(struct pcnode *, offset_t, struct buf **,