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[SCSI] sd: use REQ_PM in sd's runtime suspend operation

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With the introduction of REQ_PM, modify sd's runtime suspend operation
functions to use that flag so that the operations to put the device into
runtime suspended state(i.e. sync cache and stop device) will not affect
its runtime PM status.

Signed-off-by: Lin Ming <[email protected]>
Signed-off-by: Aaron Lu <[email protected]>
Acked-by: Alan Stern <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Lin Ming 2013-03-23 11:42:25 +08:00 • committed by James Bottomley
commit 9b21493c45
3 changed files with 21 additions and 13 deletions
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16
include/scsi/scsi_device.h
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@ -394,10 +394,18 @@ extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries,
int flag, int *resid);
extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
struct scsi_sense_hdr *, int timeout, int retries,
int *resid);
extern int scsi_execute_req_flags(struct scsi_device *sdev,
const unsigned char *cmd, int data_direction, void *buffer,
unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout,
int retries, int *resid, int flags);
static inline int scsi_execute_req(struct scsi_device *sdev,
const unsigned char *cmd, int data_direction, void *buffer,
unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout,
int retries, int *resid)
{
return scsi_execute_req_flags(sdev, cmd, data_direction, buffer,
bufflen, sshdr, timeout, retries, resid, 0);
}
extern void sdev_disable_disk_events(struct scsi_device *sdev);
extern void sdev_enable_disk_events(struct scsi_device *sdev);