Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754099Ab0K3QMQ (ORCPT ); Tue, 30 Nov 2010 11:12:16 -0500 Received: from mx1.redhat.com ([209.132.183.28]:28651 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751297Ab0K3QMO (ORCPT ); Tue, 30 Nov 2010 11:12:14 -0500 Message-ID: <4CF5221E.8080603@redhat.com> Date: Tue, 30 Nov 2010 17:11:10 +0100 From: Tomas Henzl User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 MIME-Version: 1.0 To: "Yang, Bo" CC: "'James.Bottomley@HansenPartnership.com'" , "'linux-scsi@vger.kernel.org'" , "'akpm@osdl.org'" , "'linux-kernel@vger.kernel.org'" Subject: Re: [PATCH 7/9] scsi: megaraid_sas - Driver created the self work queue for OCR References: <4B6A08C587958942AA3002690DD4F8C3D0804533@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C3DBD67F68@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A961BD@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A961D6@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A961E4@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A961F2@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A96213@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A96218@cosmail02.lsi.com> <4B6A08C587958942AA3002690DD4F8C30106A9621E@cosmail02.lsi.com> In-Reply-To: <4B6A08C587958942AA3002690DD4F8C30106A9621E@cosmail02.lsi.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2264 Lines: 45 On 11/19/2010 06:37 PM, Yang, Bo wrote: > Driver created the owner work queue (don't use global work queue). This queue will be used for online controller reset routine. > > Signed-off-by Bo Yang > > --- > drivers/scsi/megaraid/megaraid_sas.c | 13 ++++++++++++- > 1 file changed, 12 insertions(+), 1 deletion(-) > > diff -rupN old/drivers/scsi/megaraid/megaraid_sas.c > new/drivers/scsi/megaraid/megaraid_sas.c --- > old/drivers/scsi/megaraid/megaraid_sas.c 2010-11-17 13:46:11.000000000 > -0500 +++ new/drivers/scsi/megaraid/megaraid_sas.c 2010-11-17 > 13:47:46.000000000 -0500 @@ -108,6 +108,7 @@ static struct > megasas_mgmt_info megasas_ static struct fasync_struct > *megasas_async_queue; static DEFINE_MUTEX(megasas_async_queue_mutex); > +static struct workqueue_struct *megasas_ocr_wq; static int > megasas_poll_wait_aen; static > DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); static u32 > support_poll_for_event; @@ -2435,7 +2436,7 @@ > megasas_deplete_reply_queue(struct megas printk(KERN_NOTICE "megasas: > fwState=%x, stage:%d\n", fw_state, instance->adprecovery); - > schedule_work(&instance->work_init); + queue_work(megasas_ocr_wq, > &instance->work_init); return IRQ_HANDLED; } else { @@ -5157,6 > +5158,11 @@ static int __init megasas_init(void) goto err_pcidrv; } + > megasas_ocr_wq = create_workqueue("megasas_ocr"); + + if ( > !megasas_ocr_wq ) + printk(KERN_DEBUG "megasas: Failed to create > workqueue.\n"); + What happens later, when you pass the null pointer to the queue_work ? I'm not sure this will work. > rval = driver_create_file(&megasas_pci_driver.driver, > &driver_attr_version); if (rval) @@ -5228,6 +5234,11 @@ static void > __exit megasas_exit(void) &driver_attr_release_date); > driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); > + if (megasas_ocr_wq) { + destroy_workqueue(megasas_ocr_wq); + > megasas_ocr_wq = NULL; + } + > pci_unregister_driver(&megasas_pci_driver); > unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/