123 	struct nfsd_file *nf = container_of(rcu, struct nfsd_file, nf_rcu);  in nfsd_file_slab_free()  local
125 	put_cred(nf->nf_cred);  in nfsd_file_slab_free()
126 	kmem_cache_free(nfsd_file_slab, nf);  in nfsd_file_slab_free()
214 	struct nfsd_file *nf;  in nfsd_file_alloc()  local
216 	nf = kmem_cache_alloc(nfsd_file_slab, GFP_KERNEL);  in nfsd_file_alloc()
217 	if (unlikely(!nf))  in nfsd_file_alloc()
221 	INIT_LIST_HEAD(&nf->nf_lru);  in nfsd_file_alloc()
222 	INIT_LIST_HEAD(&nf->nf_gc);  in nfsd_file_alloc()
223 	nf->nf_birthtime = ktime_get();  in nfsd_file_alloc()
224 	nf->nf_file = NULL;  in nfsd_file_alloc()
225 	nf->nf_cred = get_current_cred();  in nfsd_file_alloc()
226 	nf->nf_net = net;  in nfsd_file_alloc()
227 	nf->nf_flags = want_gc ?  in nfsd_file_alloc()
230 	nf->nf_inode = inode;  in nfsd_file_alloc()
231 	refcount_set(&nf->nf_ref, 1);  in nfsd_file_alloc()
232 	nf->nf_may = need;  in nfsd_file_alloc()
233 	nf->nf_mark = NULL;  in nfsd_file_alloc()
234 	return nf;  in nfsd_file_alloc()
245 nfsd_file_check_write_error(struct nfsd_file *nf)  in nfsd_file_check_write_error()  argument
247 	struct file *file = nf->nf_file;  in nfsd_file_check_write_error()
251 		nfsd_reset_write_verifier(net_generic(nf->nf_net, nfsd_net_id));  in nfsd_file_check_write_error()
255 nfsd_file_hash_remove(struct nfsd_file *nf)  in nfsd_file_hash_remove()  argument
257 	trace_nfsd_file_unhash(nf);  in nfsd_file_hash_remove()
258 	rhltable_remove(&nfsd_file_rhltable, &nf->nf_rlist,  in nfsd_file_hash_remove()
263 nfsd_file_unhash(struct nfsd_file *nf)  in nfsd_file_unhash()  argument
265 	if (test_and_clear_bit(NFSD_FILE_HASHED, &nf->nf_flags)) {  in nfsd_file_unhash()
266 		nfsd_file_hash_remove(nf);  in nfsd_file_unhash()
273 nfsd_file_free(struct nfsd_file *nf)  in nfsd_file_free()  argument
275 	s64 age = ktime_to_ms(ktime_sub(ktime_get(), nf->nf_birthtime));  in nfsd_file_free()
277 	trace_nfsd_file_free(nf);  in nfsd_file_free()
282 	nfsd_file_unhash(nf);  in nfsd_file_free()
283 	if (nf->nf_mark)  in nfsd_file_free()
284 		nfsd_file_mark_put(nf->nf_mark);  in nfsd_file_free()
285 	if (nf->nf_file) {  in nfsd_file_free()
286 		nfsd_file_check_write_error(nf);  in nfsd_file_free()
287 		nfsd_filp_close(nf->nf_file);  in nfsd_file_free()
294 	if (WARN_ON_ONCE(!list_empty(&nf->nf_lru)))  in nfsd_file_free()
297 	call_rcu(&nf->nf_rcu, nfsd_file_slab_free);  in nfsd_file_free()
301 nfsd_file_check_writeback(struct nfsd_file *nf)  in nfsd_file_check_writeback()  argument
303 	struct file *file = nf->nf_file;  in nfsd_file_check_writeback()
322 static void nfsd_file_lru_add(struct nfsd_file *nf)  in nfsd_file_lru_add()  argument
324 	refcount_inc(&nf->nf_ref);  in nfsd_file_lru_add()
325 	if (list_lru_add_obj(&nfsd_file_lru, &nf->nf_lru))  in nfsd_file_lru_add()
326 		trace_nfsd_file_lru_add(nf);  in nfsd_file_lru_add()
332 static bool nfsd_file_lru_remove(struct nfsd_file *nf)  in nfsd_file_lru_remove()  argument
334 	if (list_lru_del_obj(&nfsd_file_lru, &nf->nf_lru)) {  in nfsd_file_lru_remove()
335 		trace_nfsd_file_lru_del(nf);  in nfsd_file_lru_remove()
342 nfsd_file_get(struct nfsd_file *nf)  in nfsd_file_get()  argument
344 	if (nf && refcount_inc_not_zero(&nf->nf_ref))  in nfsd_file_get()
345 		return nf;  in nfsd_file_get()
358 nfsd_file_put(struct nfsd_file *nf)  in nfsd_file_put()  argument
361 	trace_nfsd_file_put(nf);  in nfsd_file_put()
363 	if (test_bit(NFSD_FILE_GC, &nf->nf_flags) &&  in nfsd_file_put()
364 	    test_bit(NFSD_FILE_HASHED, &nf->nf_flags)) {  in nfsd_file_put()
365 		set_bit(NFSD_FILE_REFERENCED, &nf->nf_flags);  in nfsd_file_put()
366 		set_bit(NFSD_FILE_RECENT, &nf->nf_flags);  in nfsd_file_put()
369 	if (refcount_dec_and_test(&nf->nf_ref))  in nfsd_file_put()
370 		nfsd_file_free(nf);  in nfsd_file_put()
381 nfsd_file_put_local(struct nfsd_file *nf)  in nfsd_file_put_local()  argument
383 	struct net *net = nf->nf_net;  in nfsd_file_put_local()
385 	nfsd_file_put(nf);  in nfsd_file_put_local()
396 nfsd_file_file(struct nfsd_file *nf)  in nfsd_file_file()  argument
398 	return nf->nf_file;  in nfsd_file_file()
404 	struct nfsd_file *nf;  in nfsd_file_dispose_list()  local
407 		nf = list_first_entry(dispose, struct nfsd_file, nf_gc);  in nfsd_file_dispose_list()
408 		list_del_init(&nf->nf_gc);  in nfsd_file_dispose_list()
409 		nfsd_file_free(nf);  in nfsd_file_dispose_list()
424 		struct nfsd_file *nf = list_first_entry(dispose,  in nfsd_file_dispose_list_delayed()  local
426 		struct nfsd_net *nn = net_generic(nf->nf_net, nfsd_net_id);  in nfsd_file_dispose_list_delayed()
431 		list_move_tail(&nf->nf_gc, &l->freeme);  in nfsd_file_dispose_list_delayed()
491 	struct nfsd_file *nf = list_entry(item, struct nfsd_file, nf_lru);  in nfsd_file_lru_cb()  local
494 	WARN_ON_ONCE(!test_bit(NFSD_FILE_GC, &nf->nf_flags));  in nfsd_file_lru_cb()
500 	if (nfsd_file_check_writeback(nf)) {  in nfsd_file_lru_cb()
501 		trace_nfsd_file_gc_writeback(nf);  in nfsd_file_lru_cb()
506 	if (test_and_clear_bit(NFSD_FILE_REFERENCED, &nf->nf_flags)) {  in nfsd_file_lru_cb()
507 		trace_nfsd_file_gc_referenced(nf);  in nfsd_file_lru_cb()
515 	if (!refcount_dec_if_one(&nf->nf_ref)) {  in nfsd_file_lru_cb()
516 		trace_nfsd_file_gc_in_use(nf);  in nfsd_file_lru_cb()
521 	nfsd_file_unhash(nf);  in nfsd_file_lru_cb()
522 	list_lru_isolate(lru, &nf->nf_lru);  in nfsd_file_lru_cb()
523 	list_add(&nf->nf_gc, head);  in nfsd_file_lru_cb()
525 	trace_nfsd_file_gc_disposed(nf);  in nfsd_file_lru_cb()
533 	struct nfsd_file *nf = list_entry(item, struct nfsd_file, nf_lru);  in nfsd_file_gc_cb()  local
535 	if (test_and_clear_bit(NFSD_FILE_RECENT, &nf->nf_flags)) {  in nfsd_file_gc_cb()
540 		clear_bit(NFSD_FILE_REFERENCED, &nf->nf_flags);  in nfsd_file_gc_cb()
541 		trace_nfsd_file_gc_aged(nf);  in nfsd_file_gc_cb()
623 nfsd_file_cond_queue(struct nfsd_file *nf, struct list_head *dispose)  in nfsd_file_cond_queue()  argument
629 	if (!nfsd_file_unhash(nf))  in nfsd_file_cond_queue()
633 	if (!nfsd_file_get(nf))  in nfsd_file_cond_queue()
637 	if (nfsd_file_lru_remove(nf))  in nfsd_file_cond_queue()
641 	if (refcount_sub_and_test(decrement, &nf->nf_ref)) {  in nfsd_file_cond_queue()
642 		list_add(&nf->nf_gc, dispose);  in nfsd_file_cond_queue()
643 		trace_nfsd_file_closing(nf);  in nfsd_file_cond_queue()
667 	struct nfsd_file *nf;  in nfsd_file_queue_for_close()  local
672 	rhl_for_each_entry_rcu(nf, tmp, list, nf_rlist) {  in nfsd_file_queue_for_close()
673 		if (!test_bit(NFSD_FILE_GC, &nf->nf_flags))  in nfsd_file_queue_for_close()
675 		nfsd_file_cond_queue(nf, dispose);  in nfsd_file_queue_for_close()
860 	struct nfsd_file *nf;  in __nfsd_file_cache_purge()  local
875 		nf = rhashtable_walk_next(&iter);  in __nfsd_file_cache_purge()
876 		while (!IS_ERR_OR_NULL(nf)) {  in __nfsd_file_cache_purge()
877 			if (!net || nf->nf_net == net)  in __nfsd_file_cache_purge()
878 				nfsd_file_cond_queue(nf, &dispose);  in __nfsd_file_cache_purge()
879 			nf = rhashtable_walk_next(&iter);  in __nfsd_file_cache_purge()
883 	} while (nf == ERR_PTR(-EAGAIN));  in __nfsd_file_cache_purge()
991 	struct nfsd_file *nf;  in nfsd_file_lookup_locked()  local
995 	rhl_for_each_entry_rcu(nf, tmp, list, nf_rlist) {  in nfsd_file_lookup_locked()
996 		if (nf->nf_may != need)  in nfsd_file_lookup_locked()
998 		if (nf->nf_net != net)  in nfsd_file_lookup_locked()
1000 		if (!nfsd_match_cred(nf->nf_cred, cred))  in nfsd_file_lookup_locked()
1002 		if (test_bit(NFSD_FILE_GC, &nf->nf_flags) != want_gc)  in nfsd_file_lookup_locked()
1004 		if (test_bit(NFSD_FILE_HASHED, &nf->nf_flags) == 0)  in nfsd_file_lookup_locked()
1007 		if (!nfsd_file_get(nf))  in nfsd_file_lookup_locked()
1009 		return nf;  in nfsd_file_lookup_locked()
1029 	struct nfsd_file *nf;  in nfsd_file_is_cached()  local
1035 	rhl_for_each_entry_rcu(nf, tmp, list, nf_rlist)  in nfsd_file_is_cached()
1036 		if (test_bit(NFSD_FILE_GC, &nf->nf_flags)) {  in nfsd_file_is_cached()
1055 	struct nfsd_file *new, *nf;  in nfsd_file_do_acquire()  local
1075 	nf = nfsd_file_lookup_locked(net, current_cred(), inode, need, want_gc);  in nfsd_file_do_acquire()
1078 	if (nf)  in nfsd_file_do_acquire()
1089 	nf = nfsd_file_lookup_locked(net, current_cred(), inode, need, want_gc);  in nfsd_file_do_acquire()
1090 	if (unlikely(nf)) {  in nfsd_file_do_acquire()
1096 	nf = new;  in nfsd_file_do_acquire()
1097 	ret = rhltable_insert(&nfsd_file_rhltable, &nf->nf_rlist,  in nfsd_file_do_acquire()
1109 	wait_on_bit(&nf->nf_flags, NFSD_FILE_PENDING, TASK_UNINTERRUPTIBLE);  in nfsd_file_do_acquire()
1112 	if (!test_bit(NFSD_FILE_HASHED, &nf->nf_flags)) {  in nfsd_file_do_acquire()
1113 		trace_nfsd_file_cons_err(rqstp, inode, may_flags, nf);  in nfsd_file_do_acquire()
1118 		nfsd_file_put(nf);  in nfsd_file_do_acquire()
1125 	status = nfserrno(nfsd_open_break_lease(file_inode(nf->nf_file), may_flags));  in nfsd_file_do_acquire()
1127 		nfsd_file_put(nf);  in nfsd_file_do_acquire()
1128 		nf = NULL;  in nfsd_file_do_acquire()
1134 		nfsd_file_check_write_error(nf);  in nfsd_file_do_acquire()
1135 		*pnf = nf;  in nfsd_file_do_acquire()
1137 	trace_nfsd_file_acquire(rqstp, inode, may_flags, nf, status);  in nfsd_file_do_acquire()
1141 	trace_nfsd_file_alloc(nf);  in nfsd_file_do_acquire()
1142 	nf->nf_mark = nfsd_file_mark_find_or_create(inode);  in nfsd_file_do_acquire()
1143 	if (nf->nf_mark) {  in nfsd_file_do_acquire()
1146 			nf->nf_file = file;  in nfsd_file_do_acquire()
1148 			trace_nfsd_file_opened(nf, status);  in nfsd_file_do_acquire()
1150 			ret = nfsd_open_verified(fhp, may_flags, &nf->nf_file);  in nfsd_file_do_acquire()
1153 				nfsd_file_unhash(nf);  in nfsd_file_do_acquire()
1155 						      &nf->nf_flags);  in nfsd_file_do_acquire()
1156 				if (refcount_dec_and_test(&nf->nf_ref))  in nfsd_file_do_acquire()
1157 					nfsd_file_free(nf);  in nfsd_file_do_acquire()
1158 				nf = NULL;  in nfsd_file_do_acquire()
1163 			trace_nfsd_file_open(nf, status);  in nfsd_file_do_acquire()
1172 		nfsd_file_unhash(nf);  in nfsd_file_do_acquire()
1174 		nfsd_file_lru_add(nf);  in nfsd_file_do_acquire()
1176 	clear_and_wake_up_bit(NFSD_FILE_PENDING, &nf->nf_flags);  in nfsd_file_do_acquire()
1181 	if (refcount_dec_and_test(&nf->nf_ref))  in nfsd_file_do_acquire()
1182 		nfsd_file_free(nf);  in nfsd_file_do_acquire()
1183 	nf = NULL;  in nfsd_file_do_acquire()