Re: [GIT PULL] SCSI fixes for 3.18-rc2

From: James Bottomley
Date: Sun Nov 02 2014 - 16:51:00 EST


On Sun, 2014-11-02 at 15:47 -0600, James Bottomley wrote:
> With full diff below.

For those of you paying attention, I managed to generate a reverse diff.
The actual forward diff is below.

James

---

diff --git a/MAINTAINERS b/MAINTAINERS
index dab92a7..82d4ad2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4312,8 +4312,10 @@ F: Documentation/blockdev/cpqarray.txt
F: drivers/block/cpqarray.*

HEWLETT-PACKARD SMART ARRAY RAID DRIVER (hpsa)
-M: "Stephen M. Cameron" <scameron@xxxxxxxxxxxxxxxxxx>
+M: Don Brace <don.brace@xxxxxxxx>
L: iss_storagedev@xxxxxx
+L: storagedev@xxxxxxxx
+L: linux-scsi@xxxxxxxxxxxxxxx
S: Supported
F: Documentation/scsi/hpsa.txt
F: drivers/scsi/hpsa*.[ch]
@@ -4321,8 +4323,10 @@ F: include/linux/cciss*.h
F: include/uapi/linux/cciss*.h

HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss)
-M: Mike Miller <mike.miller@xxxxxx>
+M: Don Brace <don.brace@xxxxxxxx>
L: iss_storagedev@xxxxxx
+L: storagedev@xxxxxxxx
+L: linux-scsi@xxxxxxxxxxxxxxx
S: Supported
F: Documentation/blockdev/cciss.txt
F: drivers/block/cciss*
@@ -9606,7 +9610,6 @@ F: drivers/staging/unisys/

UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER
M: Vinayak Holikatti <vinholikatti@xxxxxxxxx>
-M: Santosh Y <santoshsy@xxxxxxxxx>
L: linux-scsi@xxxxxxxxxxxxxxx
S: Supported
F: Documentation/scsi/ufs.txt
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 54fa6e0..674d498 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -399,6 +399,35 @@ EXPORT_SYMBOL_GPL(cxgbi_hbas_add);
* If the source port is outside our allocation range, the caller is
* responsible for keeping track of their port usage.
*/
+
+static struct cxgbi_sock *find_sock_on_port(struct cxgbi_device *cdev,
+ unsigned char port_id)
+{
+ struct cxgbi_ports_map *pmap = &cdev->pmap;
+ unsigned int i;
+ unsigned int used;
+
+ if (!pmap->max_connect || !pmap->used)
+ return NULL;
+
+ spin_lock_bh(&pmap->lock);
+ used = pmap->used;
+ for (i = 0; used && i < pmap->max_connect; i++) {
+ struct cxgbi_sock *csk = pmap->port_csk[i];
+
+ if (csk) {
+ if (csk->port_id == port_id) {
+ spin_unlock_bh(&pmap->lock);
+ return csk;
+ }
+ used--;
+ }
+ }
+ spin_unlock_bh(&pmap->lock);
+
+ return NULL;
+}
+
static int sock_get_port(struct cxgbi_sock *csk)
{
struct cxgbi_device *cdev = csk->cdev;
@@ -749,6 +778,7 @@ static struct cxgbi_sock *cxgbi_check_route6(struct sockaddr *dst_addr)
csk->daddr6.sin6_addr = daddr6->sin6_addr;
csk->daddr6.sin6_port = daddr6->sin6_port;
csk->daddr6.sin6_family = daddr6->sin6_family;
+ csk->saddr6.sin6_family = daddr6->sin6_family;
csk->saddr6.sin6_addr = pref_saddr;

neigh_release(n);
@@ -2647,12 +2677,14 @@ int cxgbi_get_host_param(struct Scsi_Host *shost, enum iscsi_host_param param,
break;
case ISCSI_HOST_PARAM_IPADDRESS:
{
- __be32 addr;
-
- addr = cxgbi_get_iscsi_ipv4(chba);
- len = sprintf(buf, "%pI4", &addr);
+ struct cxgbi_sock *csk = find_sock_on_port(chba->cdev,
+ chba->port_id);
+ if (csk) {
+ len = sprintf(buf, "%pIS",
+ (struct sockaddr *)&csk->saddr);
+ }
log_debug(1 << CXGBI_DBG_ISCSI,
- "hba %s, ipv4 %pI4.\n", chba->ndev->name, &addr);
+ "hba %s, addr %s.\n", chba->ndev->name, buf);
break;
}
default:
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 1d98fad..2c7cb1c 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -700,11 +700,6 @@ static inline void cxgbi_set_iscsi_ipv4(struct cxgbi_hba *chba, __be32 ipaddr)
chba->ndev->name);
}

-static inline __be32 cxgbi_get_iscsi_ipv4(struct cxgbi_hba *chba)
-{
- return chba->ipv4addr;
-}
-
struct cxgbi_device *cxgbi_device_register(unsigned int, unsigned int);
void cxgbi_device_unregister(struct cxgbi_device *);
void cxgbi_device_unregister_all(unsigned int flag);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 9eff8a3..50a6e1a 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1893,6 +1893,11 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req,
blk_mq_start_request(req);
}

+ if (blk_queue_tagged(q))
+ req->cmd_flags |= REQ_QUEUED;
+ else
+ req->cmd_flags &= ~REQ_QUEUED;
+
scsi_init_cmd_errh(cmd);
cmd->scsi_done = scsi_mq_done;

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0207a78..51d0dc2 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1136,8 +1136,7 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
/*
* tag stuff
*/
-#define blk_rq_tagged(rq) \
- ((rq)->mq_ctx || ((rq)->cmd_flags & REQ_QUEUED))
+#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED)
extern int blk_queue_start_tag(struct request_queue *, struct request *);
extern struct request *blk_queue_find_tag(struct request_queue *, int);
extern void blk_queue_end_tag(struct request_queue *, struct request *);
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index e645835..56ed843 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -67,8 +67,9 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
if (!sdev->tagged_supported)
return;

- if (!shost_use_blk_mq(sdev->host) &&
- !blk_queue_tagged(sdev->request_queue))
+ if (shost_use_blk_mq(sdev->host))
+ queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, sdev->request_queue);
+ else if (!blk_queue_tagged(sdev->request_queue))
blk_queue_init_tags(sdev->request_queue, depth,
sdev->host->bqt);

@@ -81,8 +82,7 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
**/
static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
{
- if (!shost_use_blk_mq(sdev->host) &&
- blk_queue_tagged(sdev->request_queue))
+ if (blk_queue_tagged(sdev->request_queue))
blk_queue_free_tags(sdev->request_queue);
scsi_adjust_queue_depth(sdev, 0, depth);
}
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 9cdf62f..c9f2e8c 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -203,10 +203,10 @@ void __sg_free_table(struct sg_table *table, unsigned int max_ents,
}

table->orig_nents -= sg_size;
- if (!skip_first_chunk) {
- free_fn(sgl, alloc_size);
+ if (skip_first_chunk)
skip_first_chunk = false;
- }
+ else
+ free_fn(sgl, alloc_size);
sgl = next;
}



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