ufs/ufs/ufs_bmap.c

106 ufs_bmaparray(vp, bn, bnp, nbp, runp, runb)
108 	ufs2_daddr_t bn;
141 	error = ufs_getlbns(vp, bn, ap, nump);
147 		if (bn >= 0 && bn < NDADDR) {
148 			*bnp = blkptrtodb(ump, DIP(ip, i_db[bn]));
149 		} else if (bn < 0 && bn >= -NXADDR) {
150 			*bnp = blkptrtodb(ump, ip->i_din2->di_extb[-1 - bn]);
168 		if ((ip->i_flags & SF_SNAPSHOT) && DIP(ip, i_db[bn]) > 0 &&
169 		    DIP(ip, i_db[bn]) < ump->um_seqinc) {
173 				*bnp = blkptrtodb(ump, bn * ump->um_seqinc);
177 			ufs2_daddr_t bnb = bn;
178 			for (++bn; bn < NDADDR && *runp < maxrun &&
179 			    is_sequential(ump, DIP(ip, i_db[bn - 1]),
180 			    DIP(ip, i_db[bn]));
181 			    ++bn, ++*runp);
182 			bn = bnb;
183 			if (runb && (bn > 0)) {
184 				for (--bn; (bn >= 0) && (*runb < maxrun) &&
185 					is_sequential(ump, DIP(ip, i_db[bn]),
186 						DIP(ip, i_db[bn+1]));
187 						--bn, ++*runb);
205 		if ((daddr == 0 && !incore(&vp->v_bufobj, metalbn)) || metalbn == bn)
245 				for (bn = ap->in_off + 1;
246 				    bn < MNINDIR(ump) && *runp < maxrun &&
248 				    ((ufs1_daddr_t *)bp->b_data)[bn - 1],
249 				    ((ufs1_daddr_t *)bp->b_data)[bn]);
250 				    ++bn, ++*runp);
251 				bn = ap->in_off;
252 				if (runb && bn) {
253 					for (--bn; bn >= 0 && *runb < maxrun &&
255 					    ((ufs1_daddr_t *)bp->b_data)[bn],
256 					    ((ufs1_daddr_t *)bp->b_data)[bn+1]);
257 					    --bn, ++*runb);
264 			for (bn = ap->in_off + 1;
265 			    bn < MNINDIR(ump) && *runp < maxrun &&
267 			    ((ufs2_daddr_t *)bp->b_data)[bn - 1],
268 			    ((ufs2_daddr_t *)bp->b_data)[bn]);
269 			    ++bn, ++*runp);
270 			bn = ap->in_off;
271 			if (runb && bn) {
272 				for (--bn; bn >= 0 && *runb < maxrun &&
274 				    ((ufs2_daddr_t *)bp->b_data)[bn],
275 				    ((ufs2_daddr_t *)bp->b_data)[bn + 1]);
276 				    --bn, ++*runb);
297 			*bnp = blkptrtodb(ump, bn * ump->um_seqinc);
314 ufs_getlbns(vp, bn, ap, nump)
316 	ufs2_daddr_t bn;
329 	realbn = bn;
330 	if (bn < 0)
331 		bn = -bn;
334 	if (bn < NDADDR)
343 	for (blockcnt = 1, i = NIADDR, bn -= NDADDR;; i--, bn -= blockcnt) {
347 		if (bn < blockcnt)
353 		metalbn = -(realbn - bn + NIADDR - i);
355 		metalbn = -(-realbn - bn + NIADDR - i);
372 		off = (bn / blockcnt) % MNINDIR(ump);