37  * nfs4_shrink_slot_table - free retired slots from the slot table
49 		struct nfs4_slot *slot = *p;  in nfs4_shrink_slot_table()  local
51 		*p = slot->next;  in nfs4_shrink_slot_table()
52 		kfree(slot);  in nfs4_shrink_slot_table()
59  * @tbl: controlling slot table
69  * nfs4_free_slot - free a slot and efficiently update slot table.
71  * freeing a slot is trivially done by clearing its respective bit
74  * so that the server would be able to size down the slot table if needed,
83 void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot)  in nfs4_free_slot()  argument
85 	u32 slotid = slot->slot_nr;  in nfs4_free_slot()
107 	struct nfs4_slot *slot;  in nfs4_new_slot()  local
109 	slot = kzalloc(sizeof(*slot), gfp_mask);  in nfs4_new_slot()
110 	if (slot) {  in nfs4_new_slot()
111 		slot->table = tbl;  in nfs4_new_slot()
112 		slot->slot_nr = slotid;  in nfs4_new_slot()
113 		slot->seq_nr = seq_init;  in nfs4_new_slot()
114 		slot->seq_nr_highest_sent = seq_init;  in nfs4_new_slot()
115 		slot->seq_nr_last_acked = seq_init - 1;  in nfs4_new_slot()
117 	return slot;  in nfs4_new_slot()
123 	struct nfs4_slot **p, *slot;  in nfs4_find_or_create_slot()  local
134 		slot = *p;  in nfs4_find_or_create_slot()
135 		if (slot->slot_nr == slotid)  in nfs4_find_or_create_slot()
136 			return slot;  in nfs4_find_or_create_slot()
137 		p = &slot->next;  in nfs4_find_or_create_slot()
143 		struct nfs4_slot *slot)  in nfs4_lock_slot()  argument
145 	u32 slotid = slot->slot_nr;  in nfs4_lock_slot()
151 	slot->generation = tbl->generation;  in nfs4_lock_slot()
155  * nfs4_try_to_lock_slot - Given a slot try to allocate it
159 bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot)  in nfs4_try_to_lock_slot()  argument
161 	if (nfs4_test_locked_slot(tbl, slot->slot_nr))  in nfs4_try_to_lock_slot()
163 	nfs4_lock_slot(tbl, slot);  in nfs4_try_to_lock_slot()
168  * nfs4_lookup_slot - Find a slot but don't allocate it
183 	struct nfs4_slot *slot;  in nfs4_slot_get_seqid()  local
186 	slot = nfs4_lookup_slot(tbl, slotid);  in nfs4_slot_get_seqid()
187 	ret = PTR_ERR_OR_ZERO(slot);  in nfs4_slot_get_seqid()
189 		*seq_nr = slot->seq_nr;  in nfs4_slot_get_seqid()
195  * nfs4_slot_seqid_in_use - test if a slot sequence id is still in use
197  * Given a slot table, slot id and sequence number, determine if the
216  * nfs4_slot_wait_on_seqid - wait until a slot sequence id is complete
218  * Given a slot table, slot id and sequence number, wait until the
234  * nfs4_alloc_slot - efficiently look for a free slot
237  * If found, we mark the slot as used, update the highest_used_slotid,
295  * (re)Initialise a slot table
324  * nfs4_release_slot_table - release all slot table entries
332  * nfs4_shutdown_slot_table - release resources attached to a slot table
333  * @tbl: slot table to shut down
343  * nfs4_setup_slot_table - prepare a stand-alone slot table for use
344  * @tbl: slot table to set up
361 	struct nfs4_slot *slot = pslot;  in nfs41_assign_slot()  local
362 	struct nfs4_slot_table *tbl = slot->table;  in nfs41_assign_slot()
366 	slot->generation = tbl->generation;  in nfs41_assign_slot()
367 	args->sa_slot = slot;  in nfs41_assign_slot()
369 	res->sr_slot = slot;  in nfs41_assign_slot()
376 		struct nfs4_slot *slot)  in __nfs41_wake_and_assign_slot()  argument
378 	if (rpc_wake_up_first(&tbl->slot_tbl_waitq, nfs41_assign_slot, slot))  in __nfs41_wake_and_assign_slot()
384 		struct nfs4_slot *slot)  in nfs41_wake_and_assign_slot()  argument
386 	if (slot->slot_nr > tbl->max_slotid)  in nfs41_wake_and_assign_slot()
388 	return __nfs41_wake_and_assign_slot(tbl, slot);  in nfs41_wake_and_assign_slot()
393 	struct nfs4_slot *slot = nfs4_alloc_slot(tbl);  in nfs41_try_wake_next_slot_table_entry()  local
394 	if (!IS_ERR(slot)) {  in nfs41_try_wake_next_slot_table_entry()
395 		bool ret = __nfs41_wake_and_assign_slot(tbl, slot);  in nfs41_try_wake_next_slot_table_entry()
398 		nfs4_free_slot(tbl, slot);  in nfs41_try_wake_next_slot_table_entry()
511 		struct nfs4_slot *slot,  in nfs41_update_target_slotid()  argument
521 	if (tbl->generation == slot->generation)  in nfs41_update_target_slotid()
554 		 * both slot tables or neither */  in nfs4_setup_session_slot_tables()
567 	nfs4_init_slot_table(&session->fc_slot_table, "ForeChannel Slot table");  in nfs4_alloc_session()
568 	nfs4_init_slot_table(&session->bc_slot_table, "BackChannel Slot table");  in nfs4_alloc_session()