[PATCH v2 3/4] scsi: sd: set ready_to_power_off for scsi disk

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The ready_to_power_off flag is used to give indication to ATA layer
if this device's power can be removed after runtime suspended from the
perspective of scsi driver.

It is introduced to support zero power ODD. When ODD is runtime
suspended, it may not be OK to remove its power.

But for disk, there doesn't exist a scenario that when the disk is
runtime suspended, it can't be powered off.

Signed-off-by: Aaron Lu <aaron.lu@xxxxxxxxx>
---
 drivers/scsi/sd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 7b0f07a..009d30c 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2638,6 +2638,7 @@ static void sd_probe_async(void *data, async_cookie_t cookie)
 
 	sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
 		  sdp->removable ? "removable " : "");
+	sdp->ready_to_power_off = 1;
 	scsi_autopm_put_device(sdp);
 	put_device(&sdkp->dev);
 }
-- 
1.7.12.21.g871e293

--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux