127 		    struct hfs_bnode *src_node, int src, int len)  in hfs_bnode_copy()  argument
133 	hfs_dbg(BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);  in hfs_bnode_copy()
137 	src += src_node->page_offset;  in hfs_bnode_copy()
139 	src_page = src_node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_copy()
140 	src &= ~PAGE_CACHE_MASK;  in hfs_bnode_copy()
144 	if (src == dst) {  in hfs_bnode_copy()
145 		l = min_t(int, len, PAGE_CACHE_SIZE - src);  in hfs_bnode_copy()
146 		memcpy(kmap(*dst_page) + src, kmap(*src_page) + src, l);  in hfs_bnode_copy()
162 			src_ptr = kmap(*src_page) + src;  in hfs_bnode_copy()
164 			if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {  in hfs_bnode_copy()
165 				l = PAGE_CACHE_SIZE - src;  in hfs_bnode_copy()
166 				src = 0;  in hfs_bnode_copy()
170 				src += l;  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()
194 	src += node->page_offset;  in hfs_bnode_move()
196 	if (dst > src) {  in hfs_bnode_move()
197 		src += len - 1;  in hfs_bnode_move()
198 		src_page = node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
199 		src = (src & ~PAGE_CACHE_MASK) + 1;  in hfs_bnode_move()
204 		if (src == dst) {  in hfs_bnode_move()
205 			while (src < len) {  in hfs_bnode_move()
206 				memmove(kmap(*dst_page), kmap(*src_page), src);  in hfs_bnode_move()
210 				len -= src;  in hfs_bnode_move()
211 				src = PAGE_CACHE_SIZE;  in hfs_bnode_move()
215 			src -= len;  in hfs_bnode_move()
216 			memmove(kmap(*dst_page) + src,  in hfs_bnode_move()
217 				kmap(*src_page) + src, len);  in hfs_bnode_move()
225 				src_ptr = kmap(*src_page) + src;  in hfs_bnode_move()
227 				if (src < dst) {  in hfs_bnode_move()
228 					l = src;  in hfs_bnode_move()
229 					src = PAGE_CACHE_SIZE;  in hfs_bnode_move()
233 					src -= l;  in hfs_bnode_move()
248 		src_page = node->page + (src >> PAGE_CACHE_SHIFT);  in hfs_bnode_move()
249 		src &= ~PAGE_CACHE_MASK;  in hfs_bnode_move()
253 		if (src == dst) {  in hfs_bnode_move()
254 			l = min_t(int, len, PAGE_CACHE_SIZE - src);  in hfs_bnode_move()
255 			memmove(kmap(*dst_page) + src,  in hfs_bnode_move()
256 				kmap(*src_page) + src, l);  in hfs_bnode_move()
273 				src_ptr = kmap(*src_page) + src;  in hfs_bnode_move()
275 				if (PAGE_CACHE_SIZE - src <  in hfs_bnode_move()
277 					l = PAGE_CACHE_SIZE - src;  in hfs_bnode_move()
278 					src = 0;  in hfs_bnode_move()
282 					src += l;  in hfs_bnode_move()