16 static void free_cached_dir(struct cached_fid *cfid);
30 	struct cached_fid *cfid;  in find_or_create_cached_dir()  local
33 	list_for_each_entry(cfid, &cfids->entries, entry) {  in find_or_create_cached_dir()
34 		if (!strcmp(cfid->path, path)) {  in find_or_create_cached_dir()
40 			if (!cfid->time || !cfid->has_lease) {  in find_or_create_cached_dir()
44 			kref_get(&cfid->refcount);  in find_or_create_cached_dir()
46 			return cfid;  in find_or_create_cached_dir()
57 	cfid = init_cached_dir(path);  in find_or_create_cached_dir()
58 	if (cfid == NULL) {  in find_or_create_cached_dir()
62 	cfid->cfids = cfids;  in find_or_create_cached_dir()
64 	list_add(&cfid->entry, &cfids->entries);  in find_or_create_cached_dir()
65 	cfid->on_list = true;  in find_or_create_cached_dir()
66 	kref_get(&cfid->refcount);  in find_or_create_cached_dir()
75 	cfid->has_lease = true;  in find_or_create_cached_dir()
78 	return cfid;  in find_or_create_cached_dir()
160 	struct cached_fid *cfid;  in open_cached_dir()  local
190 	cfid = find_or_create_cached_dir(cfids, path, lookup_only, tcon->max_cached_dirs);  in open_cached_dir()
191 	if (cfid == NULL) {  in open_cached_dir()
201 	if (cfid->has_lease && cfid->time) {  in open_cached_dir()
203 		*ret_cfid = cfid;  in open_cached_dir()
231 	cfid->dentry = dentry;  in open_cached_dir()
232 	cfid->tcon = tcon;  in open_cached_dir()
244 	pfid = &cfid->fid;  in open_cached_dir()
304 	cfid->is_open = true;  in open_cached_dir()
345 				(char *)&cfid->file_all_info))  in open_cached_dir()
346 		cfid->file_all_info_is_valid = true;  in open_cached_dir()
348 	cfid->time = jiffies;  in open_cached_dir()
361 		if (cfid->on_list) {  in open_cached_dir()
362 			list_del(&cfid->entry);  in open_cached_dir()
363 			cfid->on_list = false;  in open_cached_dir()
366 		if (cfid->has_lease) {  in open_cached_dir()
372 			cfid->has_lease = false;  in open_cached_dir()
373 			kref_put(&cfid->refcount, smb2_close_cached_fid);  in open_cached_dir()
377 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in open_cached_dir()
379 		*ret_cfid = cfid;  in open_cached_dir()
395 	struct cached_fid *cfid;  in open_cached_dir_by_dentry()  local
402 	list_for_each_entry(cfid, &cfids->entries, entry) {  in open_cached_dir_by_dentry()
403 		if (dentry && cfid->dentry == dentry) {  in open_cached_dir_by_dentry()
405 			kref_get(&cfid->refcount);  in open_cached_dir_by_dentry()
406 			*ret_cfid = cfid;  in open_cached_dir_by_dentry()
418 	struct cached_fid *cfid = container_of(ref, struct cached_fid,  in smb2_close_cached_fid()  local
422 	spin_lock(&cfid->cfids->cfid_list_lock);  in smb2_close_cached_fid()
423 	if (cfid->on_list) {  in smb2_close_cached_fid()
424 		list_del(&cfid->entry);  in smb2_close_cached_fid()
425 		cfid->on_list = false;  in smb2_close_cached_fid()
426 		cfid->cfids->num_entries--;  in smb2_close_cached_fid()
428 	spin_unlock(&cfid->cfids->cfid_list_lock);  in smb2_close_cached_fid()
430 	dput(cfid->dentry);  in smb2_close_cached_fid()
431 	cfid->dentry = NULL;  in smb2_close_cached_fid()
433 	if (cfid->is_open) {  in smb2_close_cached_fid()
434 		rc = SMB2_close(0, cfid->tcon, cfid->fid.persistent_fid,  in smb2_close_cached_fid()
435 			   cfid->fid.volatile_fid);  in smb2_close_cached_fid()
440 	free_cached_dir(cfid);  in smb2_close_cached_fid()
446 	struct cached_fid *cfid = NULL;  in drop_cached_dir_by_name()  local
449 	rc = open_cached_dir(xid, tcon, name, cifs_sb, true, &cfid);  in drop_cached_dir_by_name()
454 	spin_lock(&cfid->cfids->cfid_list_lock);  in drop_cached_dir_by_name()
455 	if (cfid->has_lease) {  in drop_cached_dir_by_name()
456 		cfid->has_lease = false;  in drop_cached_dir_by_name()
457 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in drop_cached_dir_by_name()
459 	spin_unlock(&cfid->cfids->cfid_list_lock);  in drop_cached_dir_by_name()
460 	close_cached_dir(cfid);  in drop_cached_dir_by_name()
464 void close_cached_dir(struct cached_fid *cfid)  in close_cached_dir()  argument
466 	kref_put(&cfid->refcount, smb2_close_cached_fid);  in close_cached_dir()
476 	struct cached_fid *cfid;  in close_all_cached_dirs()  local
493 		list_for_each_entry(cfid, &cfids->entries, entry) {  in close_all_cached_dirs()
497 			spin_lock(&cfid->fid_lock);  in close_all_cached_dirs()
498 			tmp_list->dentry = cfid->dentry;  in close_all_cached_dirs()
499 			cfid->dentry = NULL;  in close_all_cached_dirs()
500 			spin_unlock(&cfid->fid_lock);  in close_all_cached_dirs()
525 	struct cached_fid *cfid, *q;  in invalidate_all_cached_dirs()  local
536 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in invalidate_all_cached_dirs()
537 		list_move(&cfid->entry, &cfids->dying);  in invalidate_all_cached_dirs()
539 		cfid->is_open = false;  in invalidate_all_cached_dirs()
540 		cfid->on_list = false;  in invalidate_all_cached_dirs()
541 		if (cfid->has_lease) {  in invalidate_all_cached_dirs()
546 			cfid->has_lease = false;  in invalidate_all_cached_dirs()
548 			kref_get(&cfid->refcount);  in invalidate_all_cached_dirs()
561 	struct cached_fid *cfid = container_of(work,  in cached_dir_offload_close()  local
563 	struct cifs_tcon *tcon = cfid->tcon;  in cached_dir_offload_close()
565 	WARN_ON(cfid->on_list);  in cached_dir_offload_close()
567 	kref_put(&cfid->refcount, smb2_close_cached_fid);  in cached_dir_offload_close()
580 	struct cached_fid *cfid = container_of(work, struct cached_fid,  in cached_dir_put_work()  local
584 	spin_lock(&cfid->fid_lock);  in cached_dir_put_work()
585 	dentry = cfid->dentry;  in cached_dir_put_work()
586 	cfid->dentry = NULL;  in cached_dir_put_work()
587 	spin_unlock(&cfid->fid_lock);  in cached_dir_put_work()
590 	queue_work(serverclose_wq, &cfid->close_work);  in cached_dir_put_work()
596 	struct cached_fid *cfid;  in cached_dir_lease_break()  local
602 	list_for_each_entry(cfid, &cfids->entries, entry) {  in cached_dir_lease_break()
603 		if (cfid->has_lease &&  in cached_dir_lease_break()
605 			    cfid->fid.lease_key,  in cached_dir_lease_break()
607 			cfid->has_lease = false;  in cached_dir_lease_break()
608 			cfid->time = 0;  in cached_dir_lease_break()
613 			list_del(&cfid->entry);  in cached_dir_lease_break()
614 			cfid->on_list = false;  in cached_dir_lease_break()
620 			queue_work(cfid_put_wq, &cfid->put_work);  in cached_dir_lease_break()
631 	struct cached_fid *cfid;  in init_cached_dir()  local
633 	cfid = kzalloc(sizeof(*cfid), GFP_ATOMIC);  in init_cached_dir()
634 	if (!cfid)  in init_cached_dir()
636 	cfid->path = kstrdup(path, GFP_ATOMIC);  in init_cached_dir()
637 	if (!cfid->path) {  in init_cached_dir()
638 		kfree(cfid);  in init_cached_dir()
642 	INIT_WORK(&cfid->close_work, cached_dir_offload_close);  in init_cached_dir()
643 	INIT_WORK(&cfid->put_work, cached_dir_put_work);  in init_cached_dir()
644 	INIT_LIST_HEAD(&cfid->entry);  in init_cached_dir()
645 	INIT_LIST_HEAD(&cfid->dirents.entries);  in init_cached_dir()
646 	mutex_init(&cfid->dirents.de_mutex);  in init_cached_dir()
647 	spin_lock_init(&cfid->fid_lock);  in init_cached_dir()
648 	kref_init(&cfid->refcount);  in init_cached_dir()
649 	return cfid;  in init_cached_dir()
652 static void free_cached_dir(struct cached_fid *cfid)  in free_cached_dir()  argument
656 	WARN_ON(work_pending(&cfid->close_work));  in free_cached_dir()
657 	WARN_ON(work_pending(&cfid->put_work));  in free_cached_dir()
659 	dput(cfid->dentry);  in free_cached_dir()
660 	cfid->dentry = NULL;  in free_cached_dir()
665 	list_for_each_entry_safe(dirent, q, &cfid->dirents.entries, entry) {  in free_cached_dir()
671 	kfree(cfid->path);  in free_cached_dir()
672 	cfid->path = NULL;  in free_cached_dir()
673 	kfree(cfid);  in free_cached_dir()
680 	struct cached_fid *cfid, *q;  in cfids_invalidation_worker()  local
688 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in cfids_invalidation_worker()
689 		list_del(&cfid->entry);  in cfids_invalidation_worker()
691 		kref_put(&cfid->refcount, smb2_close_cached_fid);  in cfids_invalidation_worker()
698 	struct cached_fid *cfid, *q;  in cfids_laundromat_worker()  local
705 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in cfids_laundromat_worker()
706 		if (cfid->time &&  in cfids_laundromat_worker()
707 		    time_after(jiffies, cfid->time + HZ * dir_cache_timeout)) {  in cfids_laundromat_worker()
708 			cfid->on_list = false;  in cfids_laundromat_worker()
709 			list_move(&cfid->entry, &entry);  in cfids_laundromat_worker()
711 			if (cfid->has_lease) {  in cfids_laundromat_worker()
716 				cfid->has_lease = false;  in cfids_laundromat_worker()
718 				kref_get(&cfid->refcount);  in cfids_laundromat_worker()
723 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in cfids_laundromat_worker()
724 		list_del(&cfid->entry);  in cfids_laundromat_worker()
726 		spin_lock(&cfid->fid_lock);  in cfids_laundromat_worker()
727 		dentry = cfid->dentry;  in cfids_laundromat_worker()
728 		cfid->dentry = NULL;  in cfids_laundromat_worker()
729 		spin_unlock(&cfid->fid_lock);  in cfids_laundromat_worker()
732 		if (cfid->is_open) {  in cfids_laundromat_worker()
734 			++cfid->tcon->tc_count;  in cfids_laundromat_worker()
735 			trace_smb3_tcon_ref(cfid->tcon->debug_id, cfid->tcon->tc_count,  in cfids_laundromat_worker()
738 			queue_work(serverclose_wq, &cfid->close_work);  in cfids_laundromat_worker()
744 			kref_put(&cfid->refcount, smb2_close_cached_fid);  in cfids_laundromat_worker()
775 	struct cached_fid *cfid, *q;  in free_cached_dirs()  local
785 	list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {  in free_cached_dirs()
786 		cfid->on_list = false;  in free_cached_dirs()
787 		cfid->is_open = false;  in free_cached_dirs()
788 		list_move(&cfid->entry, &entry);  in free_cached_dirs()
790 	list_for_each_entry_safe(cfid, q, &cfids->dying, entry) {  in free_cached_dirs()
791 		cfid->on_list = false;  in free_cached_dirs()
792 		cfid->is_open = false;  in free_cached_dirs()
793 		list_move(&cfid->entry, &entry);  in free_cached_dirs()
797 	list_for_each_entry_safe(cfid, q, &entry, entry) {  in free_cached_dirs()
798 		list_del(&cfid->entry);  in free_cached_dirs()
799 		free_cached_dir(cfid);  in free_cached_dirs()