+struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
+{
+ struct inode *inode = NULL;
+
+ /* NOTE: we depend on atomic igrab() -bzzz */
+ lock_res_and_lock(lock);
+ if (lock->l_resource->lr_lvb_inode) {
+ struct ll_inode_info * lli;
+ lli = ll_i2info(lock->l_resource->lr_lvb_inode);
+ if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
+ inode = igrab(lock->l_resource->lr_lvb_inode);
+ } else {
+ inode = lock->l_resource->lr_lvb_inode;
+ LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
+ D_WARNING, lock, "lr_lvb_inode %p is "
+ "bogus: magic %08x",
+ lock->l_resource->lr_lvb_inode,
+ lli->lli_inode_magic);
+ inode = NULL;
+ }
+ }
+ unlock_res_and_lock(lock);
+ return inode;
+}
+