From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB115C77B7D for ; Mon, 15 May 2023 16:42:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242272AbjEOQmF (ORCPT ); Mon, 15 May 2023 12:42:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242612AbjEOQmE (ORCPT ); Mon, 15 May 2023 12:42:04 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBA9F44BE for ; Mon, 15 May 2023 09:42:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 689E96289C for ; Mon, 15 May 2023 16:42:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 620F4C433D2; Mon, 15 May 2023 16:42:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684168921; bh=7d2QRqwq1SzFZRmBVYbxz9gYBoj1JEiV7lYWBs8fBS0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qey3WnU1f29LLADWfepgIAyio+6RQQLxC+YnreFkFsLk+vAdd5RGgazhogss59UKY 6Q4wrmYxUOO64Qy7n3rqCAckMWYeqqR8QGFs3zlvoRDpC27pMKFUf34XT45+6LdOUS RT2XcsIqCEwTrPLZ05ifdVKZeAJoaFVgM92rTg/0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mike Christie , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.19 057/191] scsi: target: iscsit: Fix TAS handling during conn cleanup Date: Mon, 15 May 2023 18:24:54 +0200 Message-Id: <20230515161709.283519994@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161707.203549282@linuxfoundation.org> References: <20230515161707.203549282@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mike Christie [ Upstream commit cc79da306ebb2edb700c3816b90219223182ac3c ] Fix a bug added in commit f36199355c64 ("scsi: target: iscsi: Fix cmd abort fabric stop race"). If CMD_T_TAS is set on the se_cmd we must call iscsit_free_cmd() to do the last put on the cmd and free it, because the connection is down and we will not up sending the response and doing the put from the normal I/O path. Add a check for CMD_T_TAS in iscsit_release_commands_from_conn() so we now detect this case and run iscsit_free_cmd(). Fixes: f36199355c64 ("scsi: target: iscsi: Fix cmd abort fabric stop race") Signed-off-by: Mike Christie Link: https://lore.kernel.org/r/20230319015620.96006-9-michael.christie@oracle.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/target/iscsi/iscsi_target.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 58ccded1be857..7738e249c4a24 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4056,9 +4056,12 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) list_for_each_entry_safe(cmd, cmd_tmp, &tmp_list, i_conn_node) { struct se_cmd *se_cmd = &cmd->se_cmd; - if (se_cmd->se_tfo != NULL) { - spin_lock_irq(&se_cmd->t_state_lock); - if (se_cmd->transport_state & CMD_T_ABORTED) { + if (!se_cmd->se_tfo) + continue; + + spin_lock_irq(&se_cmd->t_state_lock); + if (se_cmd->transport_state & CMD_T_ABORTED) { + if (!(se_cmd->transport_state & CMD_T_TAS)) /* * LIO's abort path owns the cleanup for this, * so put it back on the list and let @@ -4066,11 +4069,10 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) */ list_move_tail(&cmd->i_conn_node, &conn->conn_cmd_list); - } else { - se_cmd->transport_state |= CMD_T_FABRIC_STOP; - } - spin_unlock_irq(&se_cmd->t_state_lock); + } else { + se_cmd->transport_state |= CMD_T_FABRIC_STOP; } + spin_unlock_irq(&se_cmd->t_state_lock); } spin_unlock_bh(&conn->cmd_lock); -- 2.39.2