sys/kern/vfs_bio.c

373 	dp->bq_bytes += bp->b_bufsize;
385 	dp->bq_bytes += bp->b_bufsize;
400 	KASSERT(dp->bq_bytes >= bp->b_bufsize);
402 	dp->bq_bytes -= bp->b_bufsize;
1080 	if ((bp->b_bufsize <= 0) || ISSET(bp->b_cflags, BC_INVAL)) {
1108 		if (bp->b_bufsize <= 0)
1150 	if (bp->b_bufsize <= 0) {
1256 		KASSERT(bp->b_bufsize >= size);
1319 	oldsize = bp->b_bufsize;
1341 	bp->b_bufsize = desired_size;
1454 	if (bp->b_bufsize <= 0)
1569 	size = bp->b_bufsize;
1573 		bp->b_bcount = bp->b_bufsize = 0;
1755 	o->b_bufsize = i->b_bufsize;
2017 			counts[bp->b_bufsize / PAGE_SIZE]++;
2070 	KASSERT(bp->b_bcount <= bp->b_bufsize);
2075 	    (bp->b_bcount < bp->b_bufsize || bp->b_resid > 0)) {
2083 	donebytes = bp->b_bufsize;
2113 	bp->b_bufsize = bp->b_bcount;