16 static void free_cached_dir(struct cached_fid *cfid);
25 	struct cached_fid *cfid;  in find_or_create_cached_dir()  local
28 	list_for_each_entry(cfid, &cfids->entries, entry) {  in find_or_create_cached_dir()
29 		if (!strcmp(cfid->path, path)) {  in find_or_create_cached_dir()
35 			if (!cfid->has_lease) {  in find_or_create_cached_dir()
39 			kref_get(&cfid->refcount);  in find_or_create_cached_dir()
41 			return cfid;  in find_or_create_cached_dir()
52 	cfid = init_cached_dir(path);  in find_or_create_cached_dir()
53 	if (cfid == NULL) {  in find_or_create_cached_dir()
57 	cfid->cfids = cfids;  in find_or_create_cached_dir()
59 	list_add(&cfid->entry, &cfids->entries);  in find_or_create_cached_dir()
60 	cfid->on_list = true;  in find_or_create_cached_dir()
61 	kref_get(&cfid->refcount);  in find_or_create_cached_dir()
63 	return cfid;  in find_or_create_cached_dir()
145 	struct cached_fid *cfid;  in open_cached_dir()  local
167 	cfid = find_or_create_cached_dir(cfids, path, lookup_only, tcon->max_cached_dirs);  in open_cached_dir()
168 	if (cfid == NULL) {  in open_cached_dir()
178 	if (cfid->has_lease) {  in open_cached_dir()
180 		*ret_cfid = cfid;  in open_cached_dir()
210 	pfid = &cfid->fid;  in open_cached_dir()
263 	cfid->tcon = tcon;  in open_cached_dir()
264 	cfid->is_open = true;  in open_cached_dir()
289 				(char *)&cfid->file_all_info))  in open_cached_dir()
290 		cfid->file_all_info_is_valid = true;  in open_cached_dir()
302 	cfid->dentry = dentry;  in open_cached_dir()
303 	cfid->time = jiffies;  in open_cached_dir()
304 	cfid->has_lease = true;  in open_cached_dir()
314 	if (!cfid->has_lease) {  in open_cached_dir()
316 			if (cfid->on_list) {  in open_cached_dir()
317 				list_del(&cfid->entry);  in open_cached_dir()
318 				cfid->on_list = false;  in open_cached_dir()
331 			kref_put(&cfid->refcount, smb2_close_cached_fid);  in open_cached_dir()
337 		if (cfid->is_open)  in open_cached_dir()
338 			SMB2_close(0, cfid->tcon, cfid->fid.persistent_fid,  in open_cached_dir()
339 				   cfid->fid.volatile_fid);  in open_cached_dir()
340 		free_cached_dir(cfid);  in open_cached_dir()
341 		cfid = NULL;  in open_cached_dir()
345 		*ret_cfid = cfid;  in open_cached_dir()
356 	struct cached_fid *cfid;  in open_cached_dir_by_dentry()  local
363 	list_for_each_entry(cfid, &cfids->entries, entry) {  in open_cached_dir_by_dentry()
364 		if (dentry && cfid->dentry == dentry) {  in open_cached_dir_by_dentry()
366 			kref_get(&cfid->refcount);  in open_cached_dir_by_dentry()
367 			*ret_cfid = cfid;  in open_cached_dir_by_dentry()
379 	struct cached_fid *cfid = container_of(ref, struct cached_fid,  in smb2_close_cached_fid()  local
382 	spin_lock(&cfid->cfids->cfid_list_lock);  in smb2_close_cached_fid()
383 	if (cfid->on_list) {  in smb2_close_cached_fid()
384 		list_del(&cfid->entry);  in smb2_close_cached_fid()
385 		cfid->on_list = false;  in smb2_close_cached_fid()
386 		cfid->cfids->num_entries--;  in smb2_close_cached_fid()
388 	spin_unlock(&cfid->cfids->cfid_list_lock);  in smb2_close_cached_fid()
390 	dput(cfid->dentry);  in smb2_close_cached_fid()
391 	cfid->dentry = NULL;  in smb2_close_cached_fid()
393 	if (cfid->is_open) {  in smb2_close_cached_fid()
394 		SMB2_close(0, cfid->tcon, cfid->fid.persistent_fid,  in smb2_close_cached_fid()
395 			   cfid->fid.volatile_fid);  in smb2_close_cached_fid()
396 		atomic_dec(&cfid->tcon->num_remote_opens);  in smb2_close_cached_fid()
399 	free_cached_dir(cfid);  in smb2_close_cached_fid()
405 	struct cached_fid *cfid = NULL;  in drop_cached_dir_by_name()  local
408 	rc = open_cached_dir(xid, tcon, name, cifs_sb, true, &cfid);  in drop_cached_dir_by_name()
413 	spin_lock(&cfid->cfids->cfid_list_lock);  in drop_cached_dir_by_name()
414 	if (cfid->has_lease) {  in drop_cached_dir_by_name()
415 		cfid->has_lease = false;  in drop_cached_dir_by_name()
416 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in drop_cached_dir_by_name()
418 	spin_unlock(&cfid->cfids->cfid_list_lock);  in drop_cached_dir_by_name()
419 	close_cached_dir(cfid);  in drop_cached_dir_by_name()
423 void close_cached_dir(struct cached_fid *cfid)  in close_cached_dir()  argument
425 	kref_put(&cfid->refcount, smb2_close_cached_fid);  in close_cached_dir()
435 	struct cached_fid *cfid;  in close_all_cached_dirs()  local
448 		list_for_each_entry(cfid, &cfids->entries, entry) {  in close_all_cached_dirs()
449 			dput(cfid->dentry);  in close_all_cached_dirs()
450 			cfid->dentry = NULL;  in close_all_cached_dirs()
462 	struct cached_fid *cfid, *q;  in invalidate_all_cached_dirs()  local
469 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in invalidate_all_cached_dirs()
470 		list_move(&cfid->entry, &entry);  in invalidate_all_cached_dirs()
472 		cfid->is_open = false;  in invalidate_all_cached_dirs()
473 		cfid->on_list = false;  in invalidate_all_cached_dirs()
475 		kref_get(&cfid->refcount);  in invalidate_all_cached_dirs()
479 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in invalidate_all_cached_dirs()
480 		list_del(&cfid->entry);  in invalidate_all_cached_dirs()
481 		cancel_work_sync(&cfid->lease_break);  in invalidate_all_cached_dirs()
482 		if (cfid->has_lease) {  in invalidate_all_cached_dirs()
488 			cfid->has_lease = false;  in invalidate_all_cached_dirs()
490 			kref_put(&cfid->refcount, smb2_close_cached_fid);  in invalidate_all_cached_dirs()
493 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in invalidate_all_cached_dirs()
500 	struct cached_fid *cfid = container_of(work,  in smb2_cached_lease_break()  local
503 	spin_lock(&cfid->cfids->cfid_list_lock);  in smb2_cached_lease_break()
504 	cfid->has_lease = false;  in smb2_cached_lease_break()
505 	spin_unlock(&cfid->cfids->cfid_list_lock);  in smb2_cached_lease_break()
506 	kref_put(&cfid->refcount, smb2_close_cached_fid);  in smb2_cached_lease_break()
512 	struct cached_fid *cfid;  in cached_dir_lease_break()  local
518 	list_for_each_entry(cfid, &cfids->entries, entry) {  in cached_dir_lease_break()
519 		if (cfid->has_lease &&  in cached_dir_lease_break()
521 			    cfid->fid.lease_key,  in cached_dir_lease_break()
523 			cfid->time = 0;  in cached_dir_lease_break()
528 			list_del(&cfid->entry);  in cached_dir_lease_break()
529 			cfid->on_list = false;  in cached_dir_lease_break()
533 				   &cfid->lease_break);  in cached_dir_lease_break()
544 	struct cached_fid *cfid;  in init_cached_dir()  local
546 	cfid = kzalloc(sizeof(*cfid), GFP_ATOMIC);  in init_cached_dir()
547 	if (!cfid)  in init_cached_dir()
549 	cfid->path = kstrdup(path, GFP_ATOMIC);  in init_cached_dir()
550 	if (!cfid->path) {  in init_cached_dir()
551 		kfree(cfid);  in init_cached_dir()
555 	INIT_WORK(&cfid->lease_break, smb2_cached_lease_break);  in init_cached_dir()
556 	INIT_LIST_HEAD(&cfid->entry);  in init_cached_dir()
557 	INIT_LIST_HEAD(&cfid->dirents.entries);  in init_cached_dir()
558 	mutex_init(&cfid->dirents.de_mutex);  in init_cached_dir()
559 	spin_lock_init(&cfid->fid_lock);  in init_cached_dir()
560 	kref_init(&cfid->refcount);  in init_cached_dir()
561 	return cfid;  in init_cached_dir()
564 static void free_cached_dir(struct cached_fid *cfid)  in free_cached_dir()  argument
568 	dput(cfid->dentry);  in free_cached_dir()
569 	cfid->dentry = NULL;  in free_cached_dir()
574 	list_for_each_entry_safe(dirent, q, &cfid->dirents.entries, entry) {  in free_cached_dir()
580 	kfree(cfid->path);  in free_cached_dir()
581 	cfid->path = NULL;  in free_cached_dir()
582 	kfree(cfid);  in free_cached_dir()
588 	struct cached_fid *cfid, *q;  in cfids_laundromat_worker()  local
594 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in cfids_laundromat_worker()
595 		if (cfid->time &&  in cfids_laundromat_worker()
596 		    time_after(jiffies, cfid->time + HZ * dir_cache_timeout)) {  in cfids_laundromat_worker()
597 			cfid->on_list = false;  in cfids_laundromat_worker()
598 			list_move(&cfid->entry, &entry);  in cfids_laundromat_worker()
601 			kref_get(&cfid->refcount);  in cfids_laundromat_worker()
606 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in cfids_laundromat_worker()
607 		list_del(&cfid->entry);  in cfids_laundromat_worker()
612 		cancel_work_sync(&cfid->lease_break);  in cfids_laundromat_worker()
613 		if (cfid->has_lease) {  in cfids_laundromat_worker()
619 			cfid->has_lease = false;  in cfids_laundromat_worker()
621 			kref_put(&cfid->refcount, smb2_close_cached_fid);  in cfids_laundromat_worker()
624 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in cfids_laundromat_worker()
653 	struct cached_fid *cfid, *q;  in free_cached_dirs()  local
662 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in free_cached_dirs()
663 		cfid->on_list = false;  in free_cached_dirs()
664 		cfid->is_open = false;  in free_cached_dirs()
665 		list_move(&cfid->entry, &entry);  in free_cached_dirs()
669 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in free_cached_dirs()
670 		list_del(&cfid->entry);  in free_cached_dirs()
671 		free_cached_dir(cfid);  in free_cached_dirs()