From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753592Ab2GXJlK (ORCPT ); Tue, 24 Jul 2012 05:41:10 -0400 Received: from va3ehsobe001.messaging.microsoft.com ([216.32.180.11]:19934 "EHLO va3outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753339Ab2GXJjt (ORCPT ); Tue, 24 Jul 2012 05:39:49 -0400 X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-SpamScore: 0 X-BigFish: VPS0(zzzz1202hzz8275bhz2dh668h839hd24he5bhf0ah107ah) X-WSS-ID: 0M7NS66-02-1NO-02 X-M-MSG: From: Aaron Lu To: Jeff Garzik , Alan Stern , Lin Ming , James Bottomley , Jeff Wu CC: , , , , Aaron Lu , Aaron Lu Subject: [PATCH v2 2/7] scsi: pm: use autosuspend if device supports it Date: Tue, 24 Jul 2012 17:37:40 +0800 Message-ID: <1343122665-18711-3-git-send-email-aaron.lu@amd.com> X-Mailer: git-send-email 1.7.11.3 In-Reply-To: <1343122665-18711-1-git-send-email-aaron.lu@amd.com> References: <1343122665-18711-1-git-send-email-aaron.lu@amd.com> X-OriginalArrivalTime: 24 Jul 2012 09:39:30.0617 (UTC) FILETIME=[39915A90:01CD6980] MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the device is using autosuspend, when scsi_autopm_put_device is called for it, use autosuspend runtime pm calls instead of the sync call. Signed-off-by: Aaron Lu --- drivers/scsi/scsi_pm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index d4201de..a002fbf 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -196,7 +196,12 @@ EXPORT_SYMBOL_GPL(scsi_autopm_get_device); void scsi_autopm_put_device(struct scsi_device *sdev) { - pm_runtime_put_sync(&sdev->sdev_gendev); + if (sdev->sdev_gendev.power.use_autosuspend) { + pm_runtime_mark_last_busy(&sdev->sdev_gendev); + pm_runtime_put_autosuspend(&sdev->sdev_gendev); + } else { + pm_runtime_put_sync(&sdev->sdev_gendev); + } } EXPORT_SYMBOL_GPL(scsi_autopm_put_device); -- 1.7.11.3