66 static struct dentry *__ovl_dentry_lower(struct ovl_entry *oe)  in __ovl_dentry_lower()  argument
68 	return oe->numlower ? oe->lowerstack[0].dentry : NULL;  in __ovl_dentry_lower()
73 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_path_type()  local
76 	if (oe->__upperdentry) {  in ovl_path_type()
83 		if (oe->numlower && S_ISDIR(dentry->d_inode->i_mode))  in ovl_path_type()
85 		else if (!oe->opaque)  in ovl_path_type()
88 		if (oe->numlower > 1)  in ovl_path_type()
94 static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe)  in ovl_upperdentry_dereference()  argument
96 	return lockless_dereference(oe->__upperdentry);  in ovl_upperdentry_dereference()
102 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_path_upper()  local
105 	path->dentry = ovl_upperdentry_dereference(oe);  in ovl_path_upper()
122 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_upper()  local
124 	return ovl_upperdentry_dereference(oe);  in ovl_dentry_upper()
129 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_lower()  local
131 	return __ovl_dentry_lower(oe);  in ovl_dentry_lower()
136 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_real()  local
139 	realdentry = ovl_upperdentry_dereference(oe);  in ovl_dentry_real()
141 		realdentry = __ovl_dentry_lower(oe);  in ovl_dentry_real()
146 struct dentry *ovl_entry_real(struct ovl_entry *oe, bool *is_upper)  in ovl_entry_real()  argument
150 	realdentry = ovl_upperdentry_dereference(oe);  in ovl_entry_real()
154 		realdentry = __ovl_dentry_lower(oe);  in ovl_entry_real()
162 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dir_cache()  local
164 	return oe->cache;  in ovl_dir_cache()
169 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_set_dir_cache()  local
171 	oe->cache = cache;  in ovl_set_dir_cache()
176 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_path_lower()  local
178 	*path = oe->numlower ? oe->lowerstack[0] : (struct path) { NULL, NULL };  in ovl_path_lower()
201 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_is_opaque()  local
202 	return oe->opaque;  in ovl_dentry_is_opaque()
207 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_set_opaque()  local
208 	oe->opaque = opaque;  in ovl_dentry_set_opaque()
213 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_update()  local
216 	WARN_ON(oe->__upperdentry);  in ovl_dentry_update()
223 	oe->__upperdentry = upperdentry;  in ovl_dentry_update()
228 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_version_inc()  local
231 	oe->version++;  in ovl_dentry_version_inc()
236 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_version_get()  local
239 	return oe->version;  in ovl_dentry_version_get()
267 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_release()  local
269 	if (oe) {  in ovl_dentry_release()
272 		dput(oe->__upperdentry);  in ovl_dentry_release()
273 		for (i = 0; i < oe->numlower; i++)  in ovl_dentry_release()
274 			dput(oe->lowerstack[i].dentry);  in ovl_dentry_release()
275 		kfree_rcu(oe, rcu);  in ovl_dentry_release()
312 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_revalidate()  local
316 	for (i = 0; i < oe->numlower; i++) {  in ovl_dentry_revalidate()
317 		struct dentry *d = oe->lowerstack[i].dentry;  in ovl_dentry_revalidate()
335 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_dentry_weak_revalidate()  local
339 	for (i = 0; i < oe->numlower; i++) {  in ovl_dentry_weak_revalidate()
340 		struct dentry *d = oe->lowerstack[i].dentry;  in ovl_dentry_weak_revalidate()
368 	struct ovl_entry *oe = kzalloc(size, GFP_KERNEL);  in ovl_alloc_entry()  local
370 	if (oe)  in ovl_alloc_entry()
371 		oe->numlower = numlower;  in ovl_alloc_entry()
373 	return oe;  in ovl_alloc_entry()
419 	struct ovl_entry *oe = dentry->d_fsdata;  in ovl_path_next()  local
425 			return oe->numlower ? 1 : -1;  in ovl_path_next()
428 	BUG_ON(idx > oe->numlower);  in ovl_path_next()
429 	*path = oe->lowerstack[idx - 1];  in ovl_path_next()
431 	return (idx < oe->numlower) ? idx + 1 : -1;  in ovl_path_next()
437 	struct ovl_entry *oe;  in ovl_lookup()  local
531 	oe = ovl_alloc_entry(ctr);  in ovl_lookup()
533 	if (!oe)  in ovl_lookup()
543 				      oe);  in ovl_lookup()
549 	oe->opaque = upperopaque;  in ovl_lookup()
550 	oe->__upperdentry = upperdentry;  in ovl_lookup()
551 	memcpy(oe->lowerstack, stack, sizeof(struct path) * ctr);  in ovl_lookup()
553 	dentry->d_fsdata = oe;  in ovl_lookup()
559 	kfree(oe);  in ovl_lookup()
923 	struct ovl_entry *oe;  in ovl_fill_super()  local
1071 	oe = ovl_alloc_entry(numlower);  in ovl_fill_super()
1072 	if (!oe)  in ovl_fill_super()
1075 	root_dentry = d_make_root(ovl_new_inode(sb, S_IFDIR, oe));  in ovl_fill_super()
1085 	oe->__upperdentry = upperpath.dentry;  in ovl_fill_super()
1087 		oe->lowerstack[i].dentry = stack[i].dentry;  in ovl_fill_super()
1088 		oe->lowerstack[i].mnt = ufs->lower_mnt[i];  in ovl_fill_super()
1092 	root_dentry->d_fsdata = oe;  in ovl_fill_super()
1105 	kfree(oe);  in ovl_fill_super()