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Commit 78472fe3 authored by Bart Van Assche's avatar Bart Van Assche Committed by Greg Kroah-Hartman
Browse files

scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout" 

commit 76261ada16dcc3be610396a46d35acc3efbda682 upstream.

Since commit 04060db41178 introduces soft lockups when toggling network
interfaces, revert it.

Link: https://marc.info/?l=target-devel&m=158157054906196


Cc: Rahul Kundu <rahul.kundu@chelsio.com>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Reported-by: default avatarDakshaja Uppalapati <dakshaja@chelsio.com>
Fixes: 04060db41178 ("scsi: RDMA/isert: Fix a recently introduced regression related to logout")
Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 90bed5a2

drivers/infiniband/ulp/isert/ib_isert.c

+12 −0
Original line number Diff line number Diff line
@@ -2555,6 +2555,17 @@ isert_wait4logout(struct isert_conn *isert_conn) 
	}

}



static void

isert_wait4cmds(struct iscsi_conn *conn)

{

	isert_info("iscsi_conn %p\n", conn);



	if (conn->sess) {

		target_sess_cmd_list_set_waiting(conn->sess->se_sess);

		target_wait_for_sess_cmds(conn->sess->se_sess);

	}

}



/**

 * isert_put_unsol_pending_cmds() - Drop commands waiting for

 *     unsolicitate dataout
@@ -2602,6 +2613,7 @@ static void isert_wait_conn(struct iscsi_conn *conn) 


	ib_drain_qp(isert_conn->qp);

	isert_put_unsol_pending_cmds(conn);

	isert_wait4cmds(conn);

	isert_wait4logout(isert_conn);



	queue_work(isert_release_wq, &isert_conn->release_work);

drivers/target/iscsi/iscsi_target.c

+3 −3
Original line number Diff line number Diff line
@@ -4162,6 +4162,9 @@ int iscsit_close_connection( 
	iscsit_stop_nopin_response_timer(conn);

	iscsit_stop_nopin_timer(conn);



	if (conn->conn_transport->iscsit_wait_conn)

		conn->conn_transport->iscsit_wait_conn(conn);



	/*

	 * During Connection recovery drop unacknowledged out of order

	 * commands for this connection, and prepare the other commands
@@ -4247,9 +4250,6 @@ int iscsit_close_connection( 
	target_sess_cmd_list_set_waiting(sess->se_sess);

	target_wait_for_sess_cmds(sess->se_sess);



	if (conn->conn_transport->iscsit_wait_conn)

		conn->conn_transport->iscsit_wait_conn(conn);



	ahash_request_free(conn->conn_tx_hash);

	if (conn->conn_rx_hash) {

		struct crypto_ahash *tfm;