From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753846AbbIOJIF (ORCPT ); Tue, 15 Sep 2015 05:08:05 -0400 Received: from mail.kernel.org ([198.145.29.136]:52075 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753827AbbIOJIC (ORCPT ); Tue, 15 Sep 2015 05:08:02 -0400 From: lizf@kernel.org To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Christoph Hellwig , Christoph Hellwig , James Bottomley , Zefan Li Subject: [PATCH 3.4 048/146] megaraid_sas: use raw_smp_processor_id() Date: Tue, 15 Sep 2015 17:02:43 +0800 Message-Id: <1442307861-32031-48-git-send-email-lizf@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1442307787-31952-1-git-send-email-lizf@kernel.org> References: <1442307787-31952-1-git-send-email-lizf@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christoph Hellwig 3.4.109-rc1 review patch. If anyone has any objections, please let me know. ------------------ commit 16b8528d20607925899b1df93bfd8fbab98d267c upstream. We only want to steer the I/O completion towards a queue, but don't actually access any per-CPU data, so the raw_ version is fine to use and avoids the warnings when using smp_processor_id(). Signed-off-by: Christoph Hellwig Reported-by: Andy Lutomirski Tested-by: Andy Lutomirski Acked-by: Sumit Saxena Signed-off-by: James Bottomley [lizf: Backported to 3.4: drop the changes to megasas_build_dcdb_fusion()] Signed-off-by: Zefan Li --- drivers/scsi/megaraid/megaraid_sas_fusion.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index bfd87fa..3e0f71c 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1426,11 +1426,11 @@ megasas_build_ldio_fusion(struct megasas_instance *instance, fp_possible = io_info.fpOkForIo; } - /* Use smp_processor_id() for now until cmd->request->cpu is CPU + /* Use raw_smp_processor_id() for now until cmd->request->cpu is CPU id by default, not CPU group id, otherwise all MSI-X queues won't be utilized */ cmd->request_desc->SCSIIO.MSIxIndex = instance->msix_vectors ? - smp_processor_id() % instance->msix_vectors : 0; + raw_smp_processor_id() % instance->msix_vectors : 0; if (fp_possible) { megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp, -- 1.9.1