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-rw-r--r--include/scsi/scsi_cmnd.h2
-rw-r--r--include/scsi/scsi_device.h3
-rw-r--r--include/scsi/scsi_host.h7
-rw-r--r--include/scsi/scsi_status.h12
4 files changed, 11 insertions, 13 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index bac55decf900..7d3622db38ed 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -201,7 +201,7 @@ static inline unsigned int scsi_get_resid(struct scsi_cmnd *cmd)
for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,
- void *buf, int buflen)
+ const void *buf, int buflen)
{
return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
buf, buflen);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 3113471ca375..c36656d8ac6c 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -231,6 +231,7 @@ struct scsi_device {
atomic_t iorequest_cnt;
atomic_t iodone_cnt;
atomic_t ioerr_cnt;
+ atomic_t iotmo_cnt;
struct device sdev_gendev,
sdev_dev;
@@ -309,8 +310,6 @@ struct scsi_target {
struct list_head devices;
struct device dev;
struct kref reap_ref; /* last put renders target invisible */
- atomic_t sdev_count;
- wait_queue_head_t sdev_wq;
unsigned int channel;
unsigned int id; /* target id ... replace
* scsi_device.id eventually */
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index aa7b7496c93a..fcf25f1642a3 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -276,7 +276,7 @@ struct scsi_host_template {
*
* Status: OPTIONAL
*/
- int (* map_queues)(struct Scsi_Host *shost);
+ void (* map_queues)(struct Scsi_Host *shost);
/*
* SCSI interface of blk_poll - poll for IO completions.
@@ -557,6 +557,8 @@ struct Scsi_Host {
struct scsi_host_template *hostt;
struct scsi_transport_template *transportt;
+ struct kref tagset_refcnt;
+ struct completion tagset_freed;
/* Area to keep a shared tag map */
struct blk_mq_tag_set tag_set;
@@ -690,9 +692,6 @@ struct Scsi_Host {
/* ldm bits */
struct device shost_gendev, shost_dev;
- atomic_t target_count;
- wait_queue_head_t targets_wq;
-
/*
* Points to the transport data (if any) which is allocated
* separately
diff --git a/include/scsi/scsi_status.h b/include/scsi/scsi_status.h
index 31d30cee1869..9cb85262de64 100644
--- a/include/scsi/scsi_status.h
+++ b/include/scsi/scsi_status.h
@@ -62,12 +62,12 @@ enum scsi_host_status {
* recover the link. Transport class will
* retry or fail IO */
DID_TRANSPORT_FAILFAST = 0x0f, /* Transport class fastfailed the io */
- DID_TARGET_FAILURE = 0x10, /* Permanent target failure, do not retry on
- * other paths */
- DID_NEXUS_FAILURE = 0x11, /* Permanent nexus failure, retry on other
- * paths might yield different results */
- DID_ALLOC_FAILURE = 0x12, /* Space allocation on the device failed */
- DID_MEDIUM_ERROR = 0x13, /* Medium error */
+ /*
+ * We used to have DID_TARGET_FAILURE, DID_NEXUS_FAILURE,
+ * DID_ALLOC_FAILURE and DID_MEDIUM_ERROR at 0x10 - 0x13. For compat
+ * with userspace apps that parse the host byte for SG IO, we leave
+ * that block of codes unused and start at 0x14 below.
+ */
DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */
};