Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[mv-sheeva.git] / drivers / scsi / scsi.c

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index b6e03074cb8f9bff620f47b8838e0345d16f1c2c..a60da55555778822a3d96a5571646c865775f9ea 100644 (file)
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -241,10 +241,7 @@ scsi_host_alloc_command(struct Scsi_Host *shost, gfp_t gfp_mask)
  */
 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;
@@ -258,9 +255,15 @@ struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask)
                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;
                }
        }
 
@@ -937,10 +940,16 @@ EXPORT_SYMBOL(scsi_adjust_queue_depth);
  */
 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;