From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:34759 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751296AbcIINlS (ORCPT ); Fri, 9 Sep 2016 09:41:18 -0400 Subject: Patch "[PATCH 065/135] megaraid_sas: Add an i/o barrier" has been added to the 4.4-stable tree To: thenzl@redhat.com, alexander.levin@verizon.com, gregkh@linuxfoundation.org, kashyap.desai@broadcom.com, martin.petersen@oracle.com Cc: , From: Date: Fri, 09 Sep 2016 15:38:14 +0200 Message-ID: <147342829450240@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled [PATCH 065/135] megaraid_sas: Add an i/o barrier to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: 0065-megaraid_sas-Add-an-i-o-barrier.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From adc397ce2b832fc83021f4a3adaa8e0b0ee0b8ea Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Mon, 1 Feb 2016 15:12:04 +0100 Subject: [PATCH 065/135] megaraid_sas: Add an i/o barrier [ Upstream commit b99dbe56d511eb07de33bfa1b99ac5a6ff76ae08 ] A barrier should be added to ensure proper ordering of memory mapped writes. Signed-off-by: Tomas Henzl Reviewed-by: Kashyap Desai Acked-by: Kashyap Desai Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/megaraid/megaraid_sas_base.c | 1 + drivers/scsi/megaraid/megaraid_sas_fusion.c | 1 + 2 files changed, 2 insertions(+) --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -735,6 +735,7 @@ megasas_fire_cmd_skinny(struct megasas_i &(regs)->inbound_high_queue_port); writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, &(regs)->inbound_low_queue_port); + mmiowb(); spin_unlock_irqrestore(&instance->hba_lock, flags); } --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -201,6 +201,7 @@ megasas_fire_cmd_fusion(struct megasas_i &instance->reg_set->inbound_low_queue_port); writel(le32_to_cpu(req_desc->u.high), &instance->reg_set->inbound_high_queue_port); + mmiowb(); spin_unlock_irqrestore(&instance->hba_lock, flags); #endif } Patches currently in stable-queue which might be from thenzl@redhat.com are queue-4.4/0065-megaraid_sas-Add-an-i-o-barrier.patch queue-4.4/0096-arcmsr-fixes-not-release-allocated-resource.patch queue-4.4/0073-mpt3sas-Fix-for-Asynchronous-completion-of-timedout-.patch queue-4.4/0063-megaraid_sas-Do-not-allow-PCI-access-during-OCR.patch queue-4.4/0072-mpt3sas-A-correction-in-unmap_resources.patch queue-4.4/0064-megaraid_sas-Fix-SMAP-issue.patch