*/
struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask)
{
- struct scsi_cmnd *cmd;
- unsigned char *buf;
-
- cmd = scsi_host_alloc_command(shost, gfp_mask);
+ struct scsi_cmnd *cmd = scsi_host_alloc_command(shost, gfp_mask);
if (unlikely(!cmd)) {
unsigned long flags;
spin_unlock_irqrestore(&shost->free_list_lock, flags);
if (cmd) {
+ void *buf, *prot;
+
buf = cmd->sense_buffer;
+ prot = cmd->prot_sdb;
+
memset(cmd, 0, sizeof(*cmd));
+
cmd->sense_buffer = buf;
+ cmd->prot_sdb = prot;
}
}
*/
int scsi_track_queue_full(struct scsi_device *sdev, int depth)
{
- if ((jiffies >> 4) == sdev->last_queue_full_time)
+
+ /*
+ * Don't let QUEUE_FULLs on the same
+ * jiffies count, they could all be from
+ * same event.
+ */
+ if ((jiffies >> 4) == (sdev->last_queue_full_time >> 4))
return 0;
- sdev->last_queue_full_time = (jiffies >> 4);
+ sdev->last_queue_full_time = jiffies;
if (sdev->last_queue_full_depth != depth) {
sdev->last_queue_full_count = 1;
sdev->last_queue_full_depth = depth;