sys/kern/vfs_bio.c

673 	diff = bufsize - bp->b_bufsize;
683 	bp->b_bufsize = bufsize;
871 	diff = bufsize - bp->b_bufsize;
876 	bp->b_bufsize = bufsize;
1688 	KASSERT(bp->b_bufsize == 0, ("bp: %p still has bufspace\n", bp));
2287 	bp->b_runningbufspace = bp->b_bufsize;
2697 	    (bp->b_ioflags & BIO_ERROR) || (bp->b_bufsize <= 0)) {
2769 	if (bp->b_bufsize == 0 || (bp->b_ioflags & BIO_ERROR) != 0 ||
2782 	if (bp->b_bufsize == 0) {
2980 	resid = bp->b_bufsize;
3155 	if (bpa->b_bufsize != size)
3232 	 * XXX returns b_bufsize instead of b_bcount for nwritten?
3234 	nwritten = bp->b_bufsize;
3683  * just go ahead and clean through to b_bufsize.
3692 	if ((bp->b_flags & B_VMIO) == 0 || bp->b_bufsize == 0)
3704 		if (eoff > bp->b_offset + bp->b_bufsize)
3705 			eoff = bp->b_offset + bp->b_bufsize;
4232 	if (bp->b_bufsize == 0 && newbsize <= PAGE_SIZE/2 &&
4249 		origbufsize = bp->b_bufsize;
4255 	vm_hold_load_pages(bp, (vm_offset_t) bp->b_data + bp->b_bufsize,
4297 		if (newbsize < bp->b_bufsize)
4299 		else if (newbsize > bp->b_bufsize)
4313 		if (size == 0 || bp->b_bufsize == 0)
4316 		if (newbsize < bp->b_bufsize)
4318 		/* XXX This looks as if it should be newbsize > b_bufsize */
4673 	if (bp->b_bufsize != 0)
4766  *	we go ahead and clear through b_bufsize.
4783 		slide = imin(slide + PAGE_SIZE, bp->b_offset + bp->b_bufsize);
4939  * Notice that we use b_bufsize for the size of the buffer
4963 	bp->b_bufsize = len;
5355 	    "b_error = %d, b_bufsize = %ld, b_bcount = %ld, b_resid = %ld\n"
5358 	    bp->b_error, bp->b_bufsize, bp->b_bcount, bp->b_resid,
5426 			total += bp->b_bufsize;
5431 			total += bp->b_bufsize;
5446 				total += bp->b_bufsize;
5456 				total += bp->b_bufsize;