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From: Aaron Lu <aaron.lu@amd.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Alan Stern <stern@rowland.harvard.edu>
Cc: Jeff Garzik <jgarzik@pobox.com>, Lin Ming <minggr@gmail.com>,
	Jeff Wu <jeff.wu@amd.com>,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org,
	Aaron Lu <aaron.lwe@gmail.com>, Aaron Lu <aaron.lu@amd.com>
Subject: [PATCH v3 2/7] scsi: pm: use autosuspend if device supports it
Date: Thu, 26 Jul 2012 18:05:24 +0800	[thread overview]
Message-ID: <1343297129-28174-3-git-send-email-aaron.lu@amd.com> (raw)
In-Reply-To: <1343297129-28174-1-git-send-email-aaron.lu@amd.com>

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 <aaron.lu@amd.com>
---
 drivers/scsi/scsi_pm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index dc0ad85..7c93723 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -197,7 +197,13 @@ 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



WARNING: multiple messages have this Message-ID (diff)
From: Aaron Lu <aaron.lu@amd.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Alan Stern <stern@rowland.harvard.edu>
Cc: Jeff Garzik <jgarzik@pobox.com>, Lin Ming <minggr@gmail.com>,
	Jeff Wu <jeff.wu@amd.com>, <linux-kernel@vger.kernel.org>,
	<linux-pm@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
	<linux-ide@vger.kernel.org>, Aaron Lu <aaron.lwe@gmail.com>,
	Aaron Lu <aaron.lu@amd.com>
Subject: [PATCH v3 2/7] scsi: pm: use autosuspend if device supports it
Date: Thu, 26 Jul 2012 18:05:24 +0800	[thread overview]
Message-ID: <1343297129-28174-3-git-send-email-aaron.lu@amd.com> (raw)
In-Reply-To: <1343297129-28174-1-git-send-email-aaron.lu@amd.com>

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 <aaron.lu@amd.com>
---
 drivers/scsi/scsi_pm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index dc0ad85..7c93723 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -197,7 +197,13 @@ 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



  parent reply	other threads:[~2012-07-26 10:06 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26 10:05 [PATCH v3 0/7] ZPODD patches for scsi tree Aaron Lu
2012-07-26 10:05 ` Aaron Lu
2012-07-26 10:05 ` [PATCH v3 1/7] scsi: sr: check support for device busy class events Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 10:05 ` Aaron Lu [this message]
2012-07-26 10:05   ` [PATCH v3 2/7] scsi: pm: use autosuspend if device supports it Aaron Lu
2012-07-26 10:44   ` Oliver Neukum
2012-07-26 12:43     ` Aaron Lu
2012-07-26 13:01       ` Oliver Neukum
2012-07-26 10:05 ` [PATCH v3 3/7] scsi: sr: support zero power ODD(ZPODD) Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 10:05 ` [PATCH v3 4/7] scsi: sr: block events when runtime suspended Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 10:05 ` [PATCH v3 5/7] scsi: pm: use runtime resume callback if available Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 10:05 ` [PATCH v3 6/7] scsi: sr: balance sr disk events block depth Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 10:54   ` Sergei Shtylyov
2012-07-26 12:47     ` Aaron Lu
2012-07-26 10:05 ` [PATCH v3 7/7] block: genhd: add an interface to set disk's poll interval Aaron Lu
2012-07-26 10:05   ` Aaron Lu
2012-07-26 13:43 ` [PATCH v3 0/7] ZPODD patches for scsi tree Jeff Garzik
2012-07-26 14:41   ` Aaron Lu
2012-07-26 18:04     ` Jeff Garzik

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