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| author | Alan Stern <stern@rowland.harvard.edu> | 2010-06-16 22:52:17 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 18:07:50 +0400 |
| commit | 478a8a0543021172220feeb0b39bb1b3e43c988f (patch) | |
| tree | c80eb31436487294a43d23ad3869576a620fe1d3 /drivers/s390/scsi/zfcp_erp.c | |
| parent | bc4f24014de58f045f169742701a6598884d93db (diff) | |
| download | linux-478a8a0543021172220feeb0b39bb1b3e43c988f.tar.xz | |
[SCSI] sd: add support for runtime PM
This patch (as1399) adds runtime-PM support to the sd driver. The
support is unsophisticated: If a SCSI disk device is mounted, or if
its device file is held open, then the device will not be
runtime-suspended; otherwise it will (provided userspace gives
permission by writing "auto" to the sysfs power/control attribute).
In order to make this work, a dev_set_drvdata() call had to be moved
from sd_probe_async() to sd_probe(). Also, a few lines of code were
changed to use a local variable instead of recalculating the address
of an embedded struct device.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_erp.c')
0 files changed, 0 insertions, 0 deletions