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Commit aacd5537 authored by Andy Adamson's avatar Andy Adamson Committed by Trond Myklebust
Browse files

NFSv4.1: cleanup init and reset of session slot tables 



We are either initializing or resetting a session. Initialize or reset
the session slot tables accordingly.

Signed-off-by: default avatarAndy Adamson <andros@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 61f2e510

fs/nfs/nfs4proc.c

+22 −37
Original line number Diff line number Diff line
@@ -5021,23 +5021,6 @@ static int nfs4_reset_slot_table(struct nfs4_slot_table *tbl, u32 max_reqs, 
	return ret;

}



/*

 * Reset the forechannel and backchannel slot tables

 */

static int nfs4_reset_slot_tables(struct nfs4_session *session)

{

	int status;



	status = nfs4_reset_slot_table(&session->fc_slot_table,

			session->fc_attrs.max_reqs, 1);

	if (status)

		return status;



	status = nfs4_reset_slot_table(&session->bc_slot_table,

			session->bc_attrs.max_reqs, 0);

	return status;

}



/* Destroy the slot table */

static void nfs4_destroy_slot_tables(struct nfs4_session *session)

{
@@ -5083,29 +5066,35 @@ static int nfs4_init_slot_table(struct nfs4_slot_table *tbl, 
}



/*

 * Initialize the forechannel and backchannel tables

 * Initialize or reset the forechannel and backchannel tables

 */

static int nfs4_init_slot_tables(struct nfs4_session *session)

static int nfs4_setup_session_slot_tables(struct nfs4_session *ses)

{

	struct nfs4_slot_table *tbl;

	int status = 0;

	int status;



	tbl = &session->fc_slot_table;

	dprintk("--> %s\n", __func__);

	/* Fore channel */

	tbl = &ses->fc_slot_table;

	if (tbl->slots == NULL) {

		status = nfs4_init_slot_table(tbl,

				session->fc_attrs.max_reqs, 1);

		status = nfs4_init_slot_table(tbl, ses->fc_attrs.max_reqs, 1);

		if (status) /* -ENOMEM */

			return status;

	} else {

		status = nfs4_reset_slot_table(tbl, ses->fc_attrs.max_reqs, 1);

		if (status)

			return status;

	}



	tbl = &session->bc_slot_table;

	/* Back channel */

	tbl = &ses->bc_slot_table;

	if (tbl->slots == NULL) {

		status = nfs4_init_slot_table(tbl,

				session->bc_attrs.max_reqs, 0);

		status = nfs4_init_slot_table(tbl, ses->bc_attrs.max_reqs, 0);

		if (status)

			nfs4_destroy_slot_tables(session);

	}



			/* Fore and back channel share a connection so get

			 * both slot tables or neither */

			nfs4_destroy_slot_tables(ses);

	} else

		status = nfs4_reset_slot_table(tbl, ses->bc_attrs.max_reqs, 0);

	return status;

}
@@ -5293,13 +5282,9 @@ int nfs4_proc_create_session(struct nfs_client *clp) 
	if (status)

		goto out;



	/* Init and reset the fore channel */

	status = nfs4_init_slot_tables(session);

	dprintk("slot table initialization returned %d\n", status);

	if (status)

		goto out;

	status = nfs4_reset_slot_tables(session);

	dprintk("slot table reset returned %d\n", status);

	/* Init or reset the session slot tables */

	status = nfs4_setup_session_slot_tables(session);

	dprintk("slot table setup returned %d\n", status);

	if (status)

		goto out;