xfs/libxfs/xfs_alloc.c

442 	xfs_extlen_t	rlen;
445 	rlen = args->len;
446 	ASSERT(rlen >= args->minlen);
447 	ASSERT(rlen <= args->maxlen);
448 	if (args->prod <= 1 || rlen < args->mod || rlen == args->maxlen ||
449 	    (args->mod == 0 && rlen < args->prod))
451 	k = rlen % args->prod;
455 		rlen = rlen - (k - args->mod);
457 		rlen = rlen - args->prod + (args->mod - k);
459 	if ((int)rlen < (int)args->minlen)
461 	ASSERT(rlen >= args->minlen && rlen <= args->maxlen);
462 	ASSERT(rlen % args->prod == args->mod);
464 		rlen + args->minleft);
465 	args->len = rlen;
470  * starting at rbno, rlen blocks.  The extent is contained within the
482 	xfs_extlen_t	rlen,		/* length of returned extent */
564 	if (rbno == fbno && rlen == flen)
567 		nfbno1 = rbno + rlen;
568 		nflen1 = flen - rlen;
570 	} else if (rbno + rlen == fbno + flen) {
572 		nflen1 = flen - rlen;
577 		nfbno2 = rbno + rlen;
1701 	xfs_extlen_t		rlen;		/* length of returned extent */
1743 				&rlen, &busy_gen);
1759 					&rbno, &rlen, &busy_gen);
1761 			if (rlen >= args->maxlen)
1795 	rlen = XFS_EXTLEN_MIN(args->maxlen, rlen);
1797 			   rlen != 0 &&
1798 			   (rlen > flen ||
1799 			    rbno + rlen > fbno + flen))) {
1804 	if (rlen < args->maxlen) {
1810 		bestrlen = rlen;
1830 					&rbno, &rlen, &busy_gen);
1831 			rlen = XFS_EXTLEN_MIN(args->maxlen, rlen);
1833 					   rlen != 0 &&
1834 					   (rlen > flen ||
1835 					    rbno + rlen > fbno + flen))) {
1840 			if (rlen > bestrlen) {
1841 				bestrlen = rlen;
1845 				if (rlen == args->maxlen)
1857 		rlen = bestrlen;
1866 	args->len = rlen;
1867 	if (rlen < args->minlen) {
1890 	rlen = args->len;
1891 	if (XFS_IS_CORRUPT(args->mp, rlen > flen)) {
1902 			rbno, rlen, XFSA_FIXUP_CNT_OK)))
1907 	args->len = rlen;