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Commit a13ce7c6 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4.1: Clean up nfs41_sequence_done 



Move the test for res->sr_slot == NULL out of the nfs41_sequence_free_slot
helper and into the main function for efficiency.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent cab92c19

fs/nfs/nfs4proc.c

+8 −11
Original line number Diff line number Diff line
@@ -559,15 +559,10 @@ static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res) 
{

	struct nfs4_session *session;

	struct nfs4_slot_table *tbl;

	struct nfs4_slot *slot = res->sr_slot;

	bool send_new_highest_used_slotid = false;



	if (!res->sr_slot) {

		/* just wake up the next guy waiting since

		 * we may have not consumed a slot after all */

		dprintk("%s: No slot\n", __func__);

		return;

	}

	tbl = res->sr_slot->table;

	tbl = slot->table;

	session = tbl->session;



	spin_lock(&tbl->slot_tbl_lock);
@@ -577,11 +572,11 @@ static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res) 
	if (tbl->highest_used_slotid > tbl->target_highest_slotid)

		send_new_highest_used_slotid = true;



	if (nfs41_wake_and_assign_slot(tbl, res->sr_slot)) {

	if (nfs41_wake_and_assign_slot(tbl, slot)) {

		send_new_highest_used_slotid = false;

		goto out_unlock;

	}

	nfs4_free_slot(tbl, res->sr_slot);

	nfs4_free_slot(tbl, slot);



	if (tbl->highest_used_slotid != NFS4_NO_SLOT)

		send_new_highest_used_slotid = false;
@@ -595,16 +590,17 @@ out_unlock: 
int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)

{

	struct nfs4_session *session;

	struct nfs4_slot *slot;

	struct nfs4_slot *slot = res->sr_slot;

	struct nfs_client *clp;

	bool interrupted = false;

	int ret = 1;



	if (slot == NULL)

		goto out_noaction;

	/* don't increment the sequence number if the task wasn't sent */

	if (!RPC_WAS_SENT(task))

		goto out;



	slot = res->sr_slot;

	session = slot->table->session;



	if (slot->interrupted) {
@@ -679,6 +675,7 @@ out: 
	/* The session may be reset by one of the error handlers. */

	dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);

	nfs41_sequence_free_slot(res);

out_noaction:

	return ret;

retry_nowait:

	if (rpc_restart_call_prepare(task)) {