Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

[linux-2.6-block.git] / drivers / scsi / sd.c

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3cea17dd5dbac5b80619e9ee7a34732401ee586d..0c63947d8a9d8fce2b4fa6240d9847036289f3b2 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -58,8 +58,8 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_ioctl.h>
 #include <scsi/scsicam.h>
-#include <scsi/sd.h>
 
+#include "sd.h"
 #include "scsi_logging.h"
 
 MODULE_AUTHOR("Eric Youngdale");
@@ -295,11 +295,6 @@ static int sd_major(int major_idx)
        }
 }
 
-static inline struct scsi_disk *scsi_disk(struct gendisk *disk)
-{
-       return container_of(disk->private_data, struct scsi_disk, driver);
-}
-
 static struct scsi_disk *__scsi_disk_get(struct gendisk *disk)
 {
        struct scsi_disk *sdkp = NULL;
@@ -860,7 +855,6 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 
 static void sd_prepare_flush(struct request_queue *q, struct request *rq)
 {
-       memset(rq->cmd, 0, sizeof(rq->cmd));
        rq->cmd_type = REQ_TYPE_BLOCK_PC;
        rq->timeout = SD_TIMEOUT;
        rq->cmd[0] = SYNCHRONIZE_CACHE;
@@ -1125,6 +1119,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
                                cmd[1] = 1;     /* Return immediately */
                                memset((void *) &cmd[2], 0, 8);
                                cmd[4] = 1;     /* Start spin cycle */
+                               if (sdkp->device->start_stop_pwr_cond)
+                                       cmd[4] |= 1 << 4;
                                scsi_execute_req(sdkp->device, cmd, DMA_NONE,
                                                 NULL, 0, &sshdr,
                                                 SD_TIMEOUT, SD_MAX_RETRIES);
@@ -1791,6 +1787,9 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
        if (start)
                cmd[4] |= 1;    /* START */
 
+       if (sdp->start_stop_pwr_cond)
+               cmd[4] |= start ? 1 << 4 : 3 << 4;      /* Active or Standby */
+
        if (!scsi_device_online(sdp))
                return -ENODEV;