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From: Aaron Lu <aaron.lu@amd.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Jeff Garzik <jgarzik@pobox.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	Sergei Shtylyov <sshtylyov@mvista.com>,
	Oliver Neukum <oneukum@suse.de>
Cc: Jeff Wu <jeff.wu@amd.com>, Lin Ming <minggr@gmail.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 v4 2/7] scsi: pm: add interface to autosuspend scsi device
Date: Fri, 27 Jul 2012 17:00:45 +0800	[thread overview]
Message-ID: <1343379650-2867-3-git-send-email-aaron.lu@amd.com> (raw)
In-Reply-To: <1343379650-2867-1-git-send-email-aaron.lu@amd.com>

Add a new interface scsi_autopm_put_device_autosuspend to mark
last busy for the device and then put autosuspend the device.

Signed-off-by: Aaron Lu <aaron.lu@amd.com>
---
 drivers/scsi/scsi_pm.c     | 7 +++++++
 include/scsi/scsi_device.h | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index dc0ad85..83edb93 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -201,6 +201,13 @@ void scsi_autopm_put_device(struct scsi_device *sdev)
 }
 EXPORT_SYMBOL_GPL(scsi_autopm_put_device);
 
+void scsi_autopm_put_device_autosuspend(struct scsi_device *sdev)
+{
+	pm_runtime_mark_last_busy(&sdev->sdev_gendev);
+	pm_runtime_put_autosuspend(&sdev->sdev_gendev);
+}
+EXPORT_SYMBOL_GPL(scsi_autopm_put_device_autosuspend);
+
 void scsi_autopm_get_target(struct scsi_target *starget)
 {
 	pm_runtime_get_sync(&starget->dev);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 9895f69..3636146 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -395,9 +395,11 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
 #ifdef CONFIG_PM_RUNTIME
 extern int scsi_autopm_get_device(struct scsi_device *);
 extern void scsi_autopm_put_device(struct scsi_device *);
+extern void scsi_autopm_put_device_autosuspend(struct scsi_device *);
 #else
 static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; }
 static inline void scsi_autopm_put_device(struct scsi_device *d) {}
+static inline void scsi_autopm_put_device_autosuspend(struct scsi_device *d) {}
 #endif /* CONFIG_PM_RUNTIME */
 
 static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
-- 
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>,
	Jeff Garzik <jgarzik@pobox.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	Sergei Shtylyov <sshtylyov@mvista.com>,
	Oliver Neukum <oneukum@suse.de>
Cc: Jeff Wu <jeff.wu@amd.com>, Lin Ming <minggr@gmail.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 v4 2/7] scsi: pm: add interface to autosuspend scsi device
Date: Fri, 27 Jul 2012 17:00:45 +0800	[thread overview]
Message-ID: <1343379650-2867-3-git-send-email-aaron.lu@amd.com> (raw)
In-Reply-To: <1343379650-2867-1-git-send-email-aaron.lu@amd.com>

Add a new interface scsi_autopm_put_device_autosuspend to mark
last busy for the device and then put autosuspend the device.

Signed-off-by: Aaron Lu <aaron.lu@amd.com>
---
 drivers/scsi/scsi_pm.c     | 7 +++++++
 include/scsi/scsi_device.h | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index dc0ad85..83edb93 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -201,6 +201,13 @@ void scsi_autopm_put_device(struct scsi_device *sdev)
 }
 EXPORT_SYMBOL_GPL(scsi_autopm_put_device);
 
+void scsi_autopm_put_device_autosuspend(struct scsi_device *sdev)
+{
+	pm_runtime_mark_last_busy(&sdev->sdev_gendev);
+	pm_runtime_put_autosuspend(&sdev->sdev_gendev);
+}
+EXPORT_SYMBOL_GPL(scsi_autopm_put_device_autosuspend);
+
 void scsi_autopm_get_target(struct scsi_target *starget)
 {
 	pm_runtime_get_sync(&starget->dev);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 9895f69..3636146 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -395,9 +395,11 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
 #ifdef CONFIG_PM_RUNTIME
 extern int scsi_autopm_get_device(struct scsi_device *);
 extern void scsi_autopm_put_device(struct scsi_device *);
+extern void scsi_autopm_put_device_autosuspend(struct scsi_device *);
 #else
 static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; }
 static inline void scsi_autopm_put_device(struct scsi_device *d) {}
+static inline void scsi_autopm_put_device_autosuspend(struct scsi_device *d) {}
 #endif /* CONFIG_PM_RUNTIME */
 
 static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
-- 
1.7.11.3



  parent reply	other threads:[~2012-07-27  9:00 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-27  9:00 [PATCH v4 0/7] ZPODD patches Aaron Lu
2012-07-27  9:00 ` Aaron Lu
2012-07-27  9:00 ` [PATCH v4 1/7] scsi: sr: check support for device busy class events Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-07-27  9:00 ` Aaron Lu [this message]
2012-07-27  9:00   ` [PATCH v4 2/7] scsi: pm: add interface to autosuspend scsi device Aaron Lu
2012-07-27  9:00 ` [PATCH v4 3/7] scsi: sr: support zero power ODD(ZPODD) Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-07-27  9:00 ` [PATCH v4 4/7] scsi: sr: block events when runtime suspended Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-08-03  9:50   ` Aaron Lu
2012-08-03  9:50     ` Aaron Lu
2012-08-03 14:52     ` Jeff Garzik
2012-08-07  6:18       ` Aaron Lu
2012-08-07  6:18         ` Aaron Lu
2012-07-27  9:00 ` [PATCH v4 5/7] scsi: pm: use runtime resume callback if available Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-07-27  9:00 ` [PATCH v4 6/7] scsi: sr: balance sr disk events block depth Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-07-27  9:00 ` [PATCH v4 7/7] block: genhd: add an interface to set disk's poll interval Aaron Lu
2012-07-27  9:00   ` Aaron Lu
2012-07-31  2:40 ` [PATCH v4 0/7] ZPODD patches Aaron Lu
2012-07-31  2:40   ` Aaron Lu
2012-07-31  8:39   ` James Bottomley

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