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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62482C3B18D for ; Thu, 13 Feb 2020 14:05:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 376532073C for ; Thu, 13 Feb 2020 14:05:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730191AbgBMOFb (ORCPT ); Thu, 13 Feb 2020 09:05:31 -0500 Received: from mx2.suse.de ([195.135.220.15]:46304 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730172AbgBMOFa (ORCPT ); Thu, 13 Feb 2020 09:05:30 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 8E4CCAFAC; Thu, 13 Feb 2020 14:05:27 +0000 (UTC) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 11/13] aacraid: use scsi_host_busy_iter() to wait for outstanding commands Date: Thu, 13 Feb 2020 15:04:20 +0100 Message-Id: <20200213140422.128382-12-hare@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20200213140422.128382-1-hare@suse.de> References: <20200213140422.128382-1-hare@suse.de> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Instead of traversing the list of possible commands by hands we should be using scsi_host_busy_iter() to figure out if there are outstanding commands. Signed-off-by: Hannes Reinecke Acked-by: Balsundar P < Balsundar.P@microchip.com> --- drivers/scsi/aacraid/comminit.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index f75878d773cf..355b16f0b145 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -272,36 +272,35 @@ static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, q->entries = qsize; } +static bool wait_for_io_iter(struct scsi_cmnd *cmd, void *data, bool rsvd) +{ + int *active = data; + + if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) + *active = *active + 1; + return true; +} static void aac_wait_for_io_completion(struct aac_dev *aac) { - unsigned long flagv = 0; - int i = 0; + int i = 0, active; for (i = 60; i; --i) { - struct scsi_device *dev; - struct scsi_cmnd *command; - int active = 0; - - __shost_for_each_device(dev, aac->scsi_host_ptr) { - spin_lock_irqsave(&dev->list_lock, flagv); - list_for_each_entry(command, &dev->cmd_list, list) { - if (command->SCp.phase == AAC_OWNER_FIRMWARE) { - active++; - break; - } - } - spin_unlock_irqrestore(&dev->list_lock, flagv); - if (active) - break; - } + active = 0; + scsi_host_busy_iter(aac->scsi_host_ptr, + wait_for_io_iter, &active); /* * We can exit If all the commands are complete */ if (active == 0) break; + dev_info(&aac->pdev->dev, + "Wait for %d commands to complete\n", active); ssleep(1); } + if (active) + dev_err(&aac->pdev->dev, + "%d outstanding commands during shutdown\n", active); } /** -- 2.16.4