xfs/libxfs/xfs_bmap.c

125 	cur->bc_rec.b.br_blockcount = 0;
522 		ASSERT(mval[i].br_blockcount > 0);
525 			ASSERT(mval[i].br_blockcount <= len);
526 			ASSERT(mval[i].br_startoff + mval[i].br_blockcount <=
530 			ASSERT(mval[i].br_startoff + mval[i].br_blockcount >
534 		       mval[i - 1].br_startoff + mval[i - 1].br_blockcount ==
865 	rec.br_blockcount = 1;
1140 		irec->br_startoff, irec->br_startblock, irec->br_blockcount,
1292 		lastaddr = got.br_startoff + got.br_blockcount;
1397 	bma->aeof = bma->offset >= rec.br_startoff + rec.br_blockcount ||
1433 	*last_block = rec.br_startoff + rec.br_blockcount;
1479 	new_endoff = new->br_startoff + new->br_blockcount;
1482 	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
1493 	if (PREV.br_startoff + PREV.br_blockcount == new_endoff)
1507 	    LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&
1508 	    LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&
1510 	    LEFT.br_blockcount + new->br_blockcount <= XFS_MAX_BMBT_EXTLEN)
1526 	    new->br_startblock + new->br_blockcount == RIGHT.br_startblock &&
1528 	    new->br_blockcount + RIGHT.br_blockcount <= XFS_MAX_BMBT_EXTLEN &&
1533 	     LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount
1549 		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
1597 		LEFT.br_blockcount += PREV.br_blockcount;
1629 		PREV.br_blockcount += RIGHT.br_blockcount;
1695 		temp = PREV.br_blockcount - new->br_blockcount;
1699 		LEFT.br_blockcount += new->br_blockcount;
1701 		PREV.br_blockcount = temp;
1702 		PREV.br_startoff += new->br_blockcount;
1765 		temp = PREV.br_blockcount - new->br_blockcount;
1771 		PREV.br_blockcount = temp;
1786 		RIGHT.br_blockcount += new->br_blockcount;
1805 		temp = PREV.br_blockcount - new->br_blockcount;
1809 		PREV.br_blockcount = temp;
1855 		temp = PREV.br_blockcount - new->br_blockcount;
1861 		PREV.br_blockcount = temp;
1895 		RIGHT.br_blockcount =
1896 			PREV.br_startoff + PREV.br_blockcount - new_endoff;
1899 					RIGHT.br_blockcount));
1902 		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;
1905 					PREV.br_blockcount));
2046 	new_endoff = new->br_startoff + new->br_blockcount;
2048 	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
2056 	if (PREV.br_startoff + PREV.br_blockcount == new_endoff)
2070 	    LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&
2071 	    LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&
2073 	    LEFT.br_blockcount + new->br_blockcount <= XFS_MAX_BMBT_EXTLEN)
2089 	    new->br_startblock + new->br_blockcount == RIGHT.br_startblock &&
2091 	    new->br_blockcount + RIGHT.br_blockcount <= XFS_MAX_BMBT_EXTLEN &&
2096 	     LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount
2111 		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
2169 		LEFT.br_blockcount += PREV.br_blockcount;
2212 		PREV.br_blockcount += RIGHT.br_blockcount;
2285 		LEFT.br_blockcount += new->br_blockcount;
2288 		PREV.br_startoff += new->br_blockcount;
2289 		PREV.br_startblock += new->br_blockcount;
2290 		PREV.br_blockcount -= new->br_blockcount;
2326 		PREV.br_startoff += new->br_blockcount;
2327 		PREV.br_startblock += new->br_blockcount;
2328 		PREV.br_blockcount -= new->br_blockcount;
2366 		PREV.br_blockcount -= new->br_blockcount;
2370 		RIGHT.br_blockcount += new->br_blockcount;
2406 		PREV.br_blockcount -= new->br_blockcount;
2453 		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;
2457 		r[1].br_blockcount =
2458 			old.br_startoff + old.br_blockcount - new_endoff;
2459 		r[1].br_startblock = new->br_startblock + new->br_blockcount;
2605 	    left.br_startoff + left.br_blockcount == new->br_startoff &&
2606 	    left.br_blockcount + new->br_blockcount <= XFS_MAX_BMBT_EXTLEN)
2610 	    new->br_startoff + new->br_blockcount == right.br_startoff &&
2611 	    new->br_blockcount + right.br_blockcount <= XFS_MAX_BMBT_EXTLEN &&
2613 	     (left.br_blockcount + new->br_blockcount +
2614 	      right.br_blockcount <= XFS_MAX_BMBT_EXTLEN)))
2627 		temp = left.br_blockcount + new->br_blockcount +
2628 			right.br_blockcount;
2636 		left.br_blockcount = temp;
2649 		temp = left.br_blockcount + new->br_blockcount;
2655 		left.br_blockcount = temp;
2668 		temp = new->br_blockcount + right.br_blockcount;
2675 		right.br_blockcount = temp;
2754 	    left.br_startoff + left.br_blockcount == new->br_startoff &&
2755 	    left.br_startblock + left.br_blockcount == new->br_startblock &&
2757 	    left.br_blockcount + new->br_blockcount <= XFS_MAX_BMBT_EXTLEN)
2761 	    new->br_startoff + new->br_blockcount == right.br_startoff &&
2762 	    new->br_startblock + new->br_blockcount == right.br_startblock &&
2764 	    new->br_blockcount + right.br_blockcount <= XFS_MAX_BMBT_EXTLEN &&
2766 	     left.br_blockcount + new->br_blockcount +
2767 	     right.br_blockcount <= XFS_MAX_BMBT_EXTLEN))
2781 		left.br_blockcount += new->br_blockcount + right.br_blockcount;
2829 		left.br_blockcount += new->br_blockcount;
2862 		right.br_blockcount += new->br_blockcount;
2985 	    (orig_end <= gotp->br_startoff + gotp->br_blockcount)) {
3027 			prevo = prevp->br_startoff + prevp->br_blockcount;
3043 			nexto = gotp->br_startoff + gotp->br_blockcount;
3116 		ASSERT(align_off >= prevp->br_startoff + prevp->br_blockcount);
3151 	    ISVALID(ap->prev.br_startblock + ap->prev.br_blockcount,
3153 		ap->blkno = ap->prev.br_startblock + ap->prev.br_blockcount;
3158 			(ap->prev.br_startoff + ap->prev.br_blockcount);
3182 			       ap->prev.br_blockcount) &&
3189 				 ap->prev.br_blockcount);
3832 	if (irec->br_startoff + irec->br_blockcount <= bno ||
3834 		irec->br_blockcount = 0;
3846 		irec->br_blockcount -= distance;
3849 	if (end < irec->br_startoff + irec->br_blockcount) {
3850 		distance = irec->br_startoff + irec->br_blockcount - end;
3851 		irec->br_blockcount -= distance;
3870 	    got->br_startoff + got->br_blockcount <= obno) {
3894 	mval->br_blockcount = XFS_FILBLKS_MIN(end - *bno,
3895 			got->br_blockcount - (*bno - got->br_startoff));
3897 	ASSERT(mval->br_blockcount <= len);
3917 	       ((mval->br_startoff + mval->br_blockcount) <= end));
3918 	ASSERT((flags & XFS_BMAPI_ENTIRE) || (mval->br_blockcount <= *len) ||
3921 	*bno = mval->br_startoff + mval->br_blockcount;
3926 		ASSERT(mval->br_blockcount > mval[-1].br_blockcount);
3928 		mval[-1].br_blockcount = mval->br_blockcount;
3934 					  mval[-1].br_blockcount &&
3937 		       mval[-1].br_startoff + mval[-1].br_blockcount);
3938 		mval[-1].br_blockcount += mval->br_blockcount;
3943 		   mval[-1].br_startoff + mval[-1].br_blockcount) {
3944 		mval[-1].br_blockcount += mval->br_blockcount;
3947 		     ((mval->br_startoff + mval->br_blockcount) <=
4015 			mval->br_blockcount =
4018 			bno += mval->br_blockcount;
4019 			len -= mval->br_blockcount;
4125 	got->br_blockcount = alen;
4204 		bma->length = (xfs_extlen_t)bma->got.br_blockcount;
4251 	bma->got.br_blockcount = bma->length;
4276 	ASSERT(bma->got.br_startoff + bma->got.br_blockcount >=
4309 	ASSERT(mval->br_blockcount <= len);
4323 					mval->br_blockcount);
4357 	if (mval->br_blockcount < len)
4668 	bma.length = max_t(xfs_filblks_t, bma.got.br_blockcount,
4787 	got.br_blockcount = len;
4919 	del_endoff = del->br_startoff + del->br_blockcount;
4920 	got_endoff = got->br_startoff + got->br_blockcount;
4924 	ASSERT(del->br_blockcount > 0);
4929 		xfs_mod_frextents(mp, xfs_rtb_to_rtx(mp, del->br_blockcount));
4937 	error = xfs_quota_unreserve_blkres(ip, del->br_blockcount);
4940 	ip->i_delayed_blks -= del->br_blockcount;
4960 		got->br_blockcount -= del->br_blockcount;
4962 				got->br_blockcount), da_old);
4970 		got->br_blockcount = got->br_blockcount - del->br_blockcount;
4972 				got->br_blockcount), da_old);
4986 		got->br_blockcount = del->br_startoff - got->br_startoff;
4987 		got_indlen = xfs_bmap_worst_indlen(ip, got->br_blockcount);
4989 		new.br_blockcount = got_endoff - del_endoff;
4990 		new_indlen = xfs_bmap_worst_indlen(ip, new.br_blockcount);
4994 						       del->br_blockcount);
5007 		del->br_blockcount -= stolen;
5014 		da_diff += del->br_blockcount;
5037 	del_endoff = del->br_startoff + del->br_blockcount;
5038 	got_endoff = got->br_startoff + got->br_blockcount;
5040 	ASSERT(del->br_blockcount > 0);
5063 		got->br_blockcount -= del->br_blockcount;
5064 		got->br_startblock = del->br_startblock + del->br_blockcount;
5071 		got->br_blockcount -= del->br_blockcount;
5078 		got->br_blockcount = del->br_startoff - got->br_startoff;
5081 		new.br_blockcount = got_endoff - del_endoff;
5083 		new.br_startblock = del->br_startblock + del->br_blockcount;
5090 	ip->i_delayed_blks -= del->br_blockcount;
5130 	ASSERT(del->br_blockcount > 0);
5133 	del_endoff = del->br_startoff + del->br_blockcount;
5134 	got_endoff = got.br_startoff + got.br_blockcount;
5157 					del->br_blockcount);
5168 	nblks = del->br_blockcount;
5170 	del_endblock = del->br_startblock + del->br_blockcount;
5213 		got.br_blockcount -= del->br_blockcount;
5227 		got.br_blockcount -= del->br_blockcount;
5244 		got.br_blockcount = del->br_startoff - got.br_startoff;
5248 		new.br_blockcount = got_endoff - del_endoff;
5320 					del->br_blockcount, NULL,
5444 			got.br_startoff + got.br_blockcount - 1);
5456 			del.br_blockcount -= start - got.br_startoff;
5460 		if (del.br_startoff + del.br_blockcount > end + 1)
5461 			del.br_blockcount = end + 1 - del.br_startoff;
5467 				del.br_startblock + del.br_blockcount);
5482 				end -= mod > del.br_blockcount ?
5483 					del.br_blockcount : mod;
5501 			if (del.br_blockcount > mod) {
5502 				del.br_startoff += del.br_blockcount - mod;
5503 				del.br_startblock += del.br_blockcount - mod;
5504 				del.br_blockcount = mod;
5524 			if (del.br_blockcount > off) {
5525 				del.br_blockcount -= off;
5535 				ASSERT(end >= del.br_blockcount);
5536 				end -= del.br_blockcount;
5558 				       prev.br_startblock + prev.br_blockcount);
5565 				prev.br_blockcount -= mod;
5693 	if ((left->br_startoff + left->br_blockcount != startoff) ||
5694 	    (left->br_startblock + left->br_blockcount != got->br_startblock) ||
5696 	    (left->br_blockcount + got->br_blockcount > XFS_MAX_BMBT_EXTLEN))
5729 	blockcount = left->br_blockcount + got->br_blockcount;
5735 	new.br_blockcount = blockcount;
5792 	new.br_startoff = left->br_startoff + left->br_blockcount;
5889 		if (new_startoff < prev.br_startoff + prev.br_blockcount) {
6019 		if (new_startoff + got.br_blockcount > next.br_startoff) {
6040 	    stop_fsb >= got.br_startoff + got.br_blockcount) {
6102 	new.br_blockcount = got.br_blockcount - gotblkcnt;
6117 	got.br_blockcount = gotblkcnt;
6252 				bmap->br_blockcount, bmap->br_startblock,
6254 		bmap->br_blockcount = 0;
6258 				&bmap->br_blockcount, flags | XFS_BMAPI_REMAP,
6278 	if (!xfs_verify_fileext(mp, irec->br_startoff, irec->br_blockcount))
6283 					   irec->br_blockcount))
6287 					   irec->br_blockcount))