+/* Calculate totlen from surrounding nodes or eraseblock */
+static inline uint32_t __ref_totlen(struct jffs2_sb_info *c,
+ struct jffs2_eraseblock *jeb,
+ struct jffs2_raw_node_ref *ref)
+{
+ uint32_t ref_end;
+
+ if (ref->next_phys)
+ ref_end = ref_offset(ref->next_phys);
+ else {
+ if (!jeb)
+ jeb = &c->blocks[ref->flash_offset / c->sector_size];
+
+ /* Last node in block. Use free_space */
+ BUG_ON(ref != jeb->last_node);
+ ref_end = jeb->offset + c->sector_size - jeb->free_size;
+ }
+ return ref_end - ref_offset(ref);
+}
+
+static inline uint32_t ref_totlen(struct jffs2_sb_info *c,
+ struct jffs2_eraseblock *jeb,
+ struct jffs2_raw_node_ref *ref)
+{
+ uint32_t ret;
+
+ D1(if (jeb && jeb != &c->blocks[ref->flash_offset / c->sector_size]) {
+ printk(KERN_CRIT "ref_totlen called with wrong block -- at 0x%08x instead of 0x%08x; ref 0x%08x\n",
+ jeb->offset, c->blocks[ref->flash_offset / c->sector_size].offset, ref_offset(ref));
+ BUG();
+ })
+
+#if 1
+ ret = ref->__totlen;
+#else
+ /* This doesn't actually work yet */
+ ret = __ref_totlen(c, jeb, ref);
+ if (ret != ref->__totlen) {
+ printk(KERN_CRIT "Totlen for ref at %p (0x%08x-0x%08x) miscalculated as 0x%x instead of %x\n",
+ ref, ref_offset(ref), ref_offset(ref)+ref->__totlen,
+ ret, ref->__totlen);
+ if (!jeb)
+ jeb = &c->blocks[ref->flash_offset / c->sector_size];
+ paranoia_failed_dump(jeb);
+ BUG();
+ }
+#endif
+ return ret;
+}
+
+