126 		    struct hfs_bnode *src_node, int src, int len)  in hfs_bnode_copy()  argument
132 	dprint(DBG_BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);  in hfs_bnode_copy()
136 	src += src_node->page_offset;  in hfs_bnode_copy()
138 	src_page = src_node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_copy()
139 	src &= ~PAGE_CACHE_MASK;  in hfs_bnode_copy()
143 	if (src == dst) {  in hfs_bnode_copy()
144 		l = min(len, (int)PAGE_CACHE_SIZE - src);  in hfs_bnode_copy()
145 		memcpy(kmap(*dst_page) + src, kmap(*src_page) + src, l);  in hfs_bnode_copy()
161 			src_ptr = kmap(*src_page) + src;  in hfs_bnode_copy()
163 			if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {  in hfs_bnode_copy()
164 				l = PAGE_CACHE_SIZE - src;  in hfs_bnode_copy()
165 				src = 0;  in hfs_bnode_copy()
169 				src += l;  in hfs_bnode_copy()
185 void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)  in hfs_bnode_move()  argument
190 	dprint(DBG_BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);  in hfs_bnode_move()
193 	src += node->page_offset;  in hfs_bnode_move()
195 	if (dst > src) {  in hfs_bnode_move()
196 		src += len - 1;  in hfs_bnode_move()
197 		src_page = node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
198 		src = (src & ~PAGE_CACHE_MASK) + 1;  in hfs_bnode_move()
203 		if (src == dst) {  in hfs_bnode_move()
204 			while (src < len) {  in hfs_bnode_move()
205 				memmove(kmap(*dst_page), kmap(*src_page), src);  in hfs_bnode_move()
209 				len -= src;  in hfs_bnode_move()
210 				src = PAGE_CACHE_SIZE;  in hfs_bnode_move()
214 			src -= len;  in hfs_bnode_move()
215 			memmove(kmap(*dst_page) + src, kmap(*src_page) + src, len);  in hfs_bnode_move()
223 				src_ptr = kmap(*src_page) + src;  in hfs_bnode_move()
225 				if (src < dst) {  in hfs_bnode_move()
226 					l = src;  in hfs_bnode_move()
227 					src = PAGE_CACHE_SIZE;  in hfs_bnode_move()
231 					src -= l;  in hfs_bnode_move()
246 		src_page = node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
247 		src &= ~PAGE_CACHE_MASK;  in hfs_bnode_move()
251 		if (src == dst) {  in hfs_bnode_move()
252 			l = min(len, (int)PAGE_CACHE_SIZE - src);  in hfs_bnode_move()
253 			memmove(kmap(*dst_page) + src, kmap(*src_page) + src, l);  in hfs_bnode_move()
269 				src_ptr = kmap(*src_page) + src;  in hfs_bnode_move()
271 				if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {  in hfs_bnode_move()
272 					l = PAGE_CACHE_SIZE - src;  in hfs_bnode_move()
273 					src = 0;  in hfs_bnode_move()
277 					src += l;  in hfs_bnode_move()