507 	unsigned	seq, m_seq;  member
515 		unsigned seq;  member
625 			    struct path *path, unsigned seq)  in legitimize_path()  argument
638 	return !read_seqcount_retry(&path->dentry->d_seq, seq);  in legitimize_path()
646 		if (unlikely(!legitimize_path(nd, &last->link, last->seq))) {  in legitimize_links()
694 	if (unlikely(!legitimize_path(nd, &nd->path, nd->seq)))  in unlazy_walk()
723 static int unlazy_child(struct nameidata *nd, struct dentry *dentry, unsigned seq)  in unlazy_child()  argument
744 	if (unlikely(read_seqcount_retry(&dentry->d_seq, seq)))  in unlazy_child()
900 		unsigned seq;  in set_root()  local
903 			seq = read_seqcount_begin(&fs->seq);  in set_root()
906 		} while (read_seqcount_retry(&fs->seq, seq));  in set_root()
939 		nd->seq = nd->root_seq;  in nd_jump_root()
940 		if (unlikely(read_seqcount_retry(&d->d_seq, nd->seq)))  in nd_jump_root()
1448 			unsigned seq;  in follow_dotdot_rcu()  local
1451 			seq = read_seqcount_begin(&parent->d_seq);  in follow_dotdot_rcu()
1452 			if (unlikely(read_seqcount_retry(&old->d_seq, nd->seq)))  in follow_dotdot_rcu()
1455 			nd->seq = seq;  in follow_dotdot_rcu()
1464 			unsigned seq = read_seqcount_begin(&mountpoint->d_seq);  in follow_dotdot_rcu()  local
1473 			nd->seq = seq;  in follow_dotdot_rcu()
1486 		nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);  in follow_dotdot_rcu()
1656 		unsigned seq;  in lookup_fast()  local
1658 		dentry = __d_lookup_rcu(parent, &nd->last, &seq);  in lookup_fast()
1671 		if (unlikely(read_seqcount_retry(&dentry->d_seq, seq)))  in lookup_fast()
1681 		if (unlikely(__read_seqcount_retry(&parent->d_seq, nd->seq)))  in lookup_fast()
1684 		*seqp = seq;  in lookup_fast()
1698 		if (unlazy_child(nd, dentry, seq))  in lookup_fast()
1806 		     struct inode *inode, unsigned seq)  in pick_link()  argument
1821 			if (unlikely(!legitimize_path(nd, link, seq))) {  in pick_link()
1841 	last->seq = seq;  in pick_link()
1854 			    int flags, struct inode *inode, unsigned seq)  in step_into()  argument
1863 		nd->seq = seq;  in step_into()
1868 		if (read_seqcount_retry(&path->dentry->d_seq, seq))  in step_into()
1871 	return pick_link(nd, path, inode, seq);  in step_into()
1878 	unsigned seq;  in walk_component()  local
1891 	err = lookup_fast(nd, &path, &inode, &seq);  in walk_component()
1910 		seq = 0;	/* we are already out of RCU mode */  in walk_component()
1914 	return step_into(nd, &path, flags, inode, seq);  in walk_component()
2277 			nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);  in path_init()
2278 			nd->root_seq = nd->seq;  in path_init()
2299 			unsigned seq;  in path_init()  local
2302 				seq = read_seqcount_begin(&fs->seq);  in path_init()
2305 				nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);  in path_init()
2306 			} while (read_seqcount_retry(&fs->seq, seq));  in path_init()
2330 			nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);  in path_init()
2365 	unsigned seq = nd->seq;  in handle_lookup_down()  local
2374 		if (unlikely(!__follow_mount_rcu(nd, &path, &inode, &seq)))  in handle_lookup_down()
2382 		seq = 0;  in handle_lookup_down()
2386 	nd->seq = seq;  in handle_lookup_down()
3375 	unsigned seq;  in do_last()  local
3394 		error = lookup_fast(nd, &path, &inode, &seq);  in do_last()
3490 	seq = 0;	/* out of RCU mode, so the value doesn't matter */  in do_last()
3493 	error = step_into(nd, &path, 0, inode, seq);  in do_last()