diff options
| author |   Lin Ming <ming.m.lin@intel.com> | 2013-03-23 11:42:28 +0800 |
|---|---|---|
| committer |   James Bottomley <JBottomley@Parallels.com> | 2013-05-06 12:48:31 -0700 |
| commit | 6df339a51e3bf18b868384bdeb31e49a4fbaa3d8 (patch) | |
| tree | a66fc02f26c5a9bf3aaacf9ad24f686a87043e0d /drivers/scsi/sd.c | |
| parent | [SCSI] sd: use REQ_PM in sd's runtime suspend operation (diff) | |
| download | linux-dev-6df339a51e3bf18b868384bdeb31e49a4fbaa3d8.tar.xz linux-dev-6df339a51e3bf18b868384bdeb31e49a4fbaa3d8.zip | |
[SCSI] sd: change to auto suspend mode
Uses block layer runtime pm helper functions in
scsi_runtime_suspend/resume for devices that take advantage of it.
Remove scsi_autopm_* from sd open/release path and check_events path.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index c6e2b34a1036..5000bec71686 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1121,10 +1121,6 @@ static int sd_open(struct block_device *bdev, fmode_t mode) sdev = sdkp->device; - retval = scsi_autopm_get_device(sdev); - if (retval) - goto error_autopm; - /* * If the device is in error recovery, wait until it is done. * If the device is offline, then disallow any access to it. @@ -1169,8 +1165,6 @@ static int sd_open(struct block_device *bdev, fmode_t mode) return 0; error_out: - scsi_autopm_put_device(sdev); -error_autopm: scsi_disk_put(sdkp); return retval; } @@ -1205,7 +1199,6 @@ static int sd_release(struct gendisk *disk, fmode_t mode) * XXX is followed by a "rmmod sd_mod"? */ - scsi_autopm_put_device(sdev); scsi_disk_put(sdkp); return 0; } @@ -1367,14 +1360,9 @@ static unsigned int sd_check_events(struct gendisk *disk, unsigned int clearing) retval = -ENODEV; if (scsi_block_when_processing_errors(sdp)) { - retval = scsi_autopm_get_device(sdp); - if (retval) - goto out; - sshdr = kzalloc(sizeof(*sshdr), GFP_KERNEL); retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES, sshdr); - scsi_autopm_put_device(sdp); } /* failed to execute TUR, assume media not present */ @@ -2839,6 +2827,7 @@ static void sd_probe_async(void *data, async_cookie_t cookie) sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n", sdp->removable ? "removable " : ""); + blk_pm_runtime_init(sdp->request_queue, dev); scsi_autopm_put_device(sdp); put_device(&sdkp->dev); } |