126 void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,  in hfs_bnode_copy()  argument
133 	hfs_dbg(BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);  in hfs_bnode_copy()
138 	dst += dst_node->page_offset;  in hfs_bnode_copy()
141 	dst_page = dst_node->page + (dst >> PAGE_CACHE_SHIFT);  in hfs_bnode_copy()
142 	dst &= ~PAGE_CACHE_MASK;  in hfs_bnode_copy()
144 	if (src == dst) {  in hfs_bnode_copy()
163 			dst_ptr = kmap(*dst_page) + dst;  in hfs_bnode_copy()
164 			if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {  in hfs_bnode_copy()
167 				dst += l;  in hfs_bnode_copy()
169 				l = PAGE_CACHE_SIZE - dst;  in hfs_bnode_copy()
171 				dst = 0;  in hfs_bnode_copy()
178 			if (!dst)  in hfs_bnode_copy()
186 void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)  in hfs_bnode_move()  argument
191 	hfs_dbg(BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);  in hfs_bnode_move()
195 	dst += node->page_offset;  in hfs_bnode_move()
196 	if (dst > src) {  in hfs_bnode_move()
200 		dst += len - 1;  in hfs_bnode_move()
201 		dst_page = node->page + (dst >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
202 		dst = (dst & ~PAGE_CACHE_MASK) + 1;  in hfs_bnode_move()
204 		if (src == dst) {  in hfs_bnode_move()
226 				dst_ptr = kmap(*dst_page) + dst;  in hfs_bnode_move()
227 				if (src < dst) {  in hfs_bnode_move()
230 					dst -= l;  in hfs_bnode_move()
232 					l = dst;  in hfs_bnode_move()
234 					dst = PAGE_CACHE_SIZE;  in hfs_bnode_move()
241 				if (dst == PAGE_CACHE_SIZE)  in hfs_bnode_move()
250 		dst_page = node->page + (dst >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
251 		dst &= ~PAGE_CACHE_MASK;  in hfs_bnode_move()
253 		if (src == dst) {  in hfs_bnode_move()
274 				dst_ptr = kmap(*dst_page) + dst;  in hfs_bnode_move()
276 						PAGE_CACHE_SIZE - dst) {  in hfs_bnode_move()
279 					dst += l;  in hfs_bnode_move()
281 					l = PAGE_CACHE_SIZE - dst;  in hfs_bnode_move()
283 					dst = 0;  in hfs_bnode_move()
290 				if (!dst)  in hfs_bnode_move()