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SCSI fixes on 20170816

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A couple of minor fixes (st, ses) and some bigger driver fixes for
 qla2xxx (crash triggered by fw dump) and ipr (lockdep problems with
 mq).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A couple of minor fixes (st, ses) and some bigger driver fixes for
  qla2xxx (crash triggered by fw dump) and ipr (lockdep problems with
  mq)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ses: Fix wrong page error
  scsi: ipr: Fix scsi-mq lockdep issue
  scsi: st: fix blk_get_queue usage
  scsi: qla2xxx: Fix system crash while triggering FW dump
This commit is contained in:
Linus Torvalds 2017-08-16 17:21:20 -07:00
commit ac9a40905a
5 changed files with 24 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/scsi/ipr.c
View File

@ -3351,6 +3351,16 @@ static void ipr_worker_thread(struct work_struct *work)
return;
}
if (ioa_cfg->scsi_unblock) {
ioa_cfg->scsi_unblock = 0;
ioa_cfg->scsi_blocked = 0;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
scsi_unblock_requests(ioa_cfg->host);
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
if (ioa_cfg->scsi_blocked)
scsi_block_requests(ioa_cfg->host);
}
if (!ioa_cfg->scan_enabled) {
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return;
@ -7211,9 +7221,8 @@ static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
ENTER;
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
ipr_trace;
spin_unlock_irq(ioa_cfg->host->host_lock);
scsi_unblock_requests(ioa_cfg->host);
spin_lock_irq(ioa_cfg->host->host_lock);
ioa_cfg->scsi_unblock = 1;
schedule_work(&ioa_cfg->work_q);
}
ioa_cfg->in_reset_reload = 0;
@ -7287,13 +7296,7 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
wake_up_all(&ioa_cfg->reset_wait_q);
spin_unlock(ioa_cfg->host->host_lock);
scsi_unblock_requests(ioa_cfg->host);
spin_lock(ioa_cfg->host->host_lock);
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
scsi_block_requests(ioa_cfg->host);
ioa_cfg->scsi_unblock = 1;
schedule_work(&ioa_cfg->work_q);
LEAVE;
return IPR_RC_JOB_RETURN;
@ -9249,8 +9252,11 @@ static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
spin_unlock(&ioa_cfg->hrrq[i]._lock);
}
wmb();
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
ioa_cfg->scsi_unblock = 0;
ioa_cfg->scsi_blocked = 1;
scsi_block_requests(ioa_cfg->host);
}
ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
ioa_cfg->reset_cmd = ipr_cmd;
@ -9306,9 +9312,8 @@ static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
wake_up_all(&ioa_cfg->reset_wait_q);
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
spin_unlock_irq(ioa_cfg->host->host_lock);
scsi_unblock_requests(ioa_cfg->host);
spin_lock_irq(ioa_cfg->host->host_lock);
ioa_cfg->scsi_unblock = 1;
schedule_work(&ioa_cfg->work_q);
}
return;
} else {

2
drivers/scsi/ipr.h
View File

@ -1488,6 +1488,8 @@ struct ipr_ioa_cfg {
u8 cfg_locked:1;
u8 clear_isr:1;
u8 probe_done:1;
u8 scsi_unblock:1;
u8 scsi_blocked:1;
u8 revid;

12
drivers/scsi/qla2xxx/qla_tmpl.c
View File

@ -401,9 +401,6 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_host *vha,
for (i = 0; i < vha->hw->max_req_queues; i++) {
struct req_que *req = vha->hw->req_q_map[i];
if (!test_bit(i, vha->hw->req_qid_map))
continue;
if (req || !buf) {
length = req ?
req->length : REQUEST_ENTRY_CNT_24XX;
@ -418,9 +415,6 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_host *vha,
for (i = 0; i < vha->hw->max_rsp_queues; i++) {
struct rsp_que *rsp = vha->hw->rsp_q_map[i];
if (!test_bit(i, vha->hw->rsp_qid_map))
continue;
if (rsp || !buf) {
length = rsp ?
rsp->length : RESPONSE_ENTRY_CNT_MQ;
@ -660,9 +654,6 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_host *vha,
for (i = 0; i < vha->hw->max_req_queues; i++) {
struct req_que *req = vha->hw->req_q_map[i];
if (!test_bit(i, vha->hw->req_qid_map))
continue;
if (req || !buf) {
qla27xx_insert16(i, buf, len);
qla27xx_insert16(1, buf, len);
@ -675,9 +666,6 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_host *vha,
for (i = 0; i < vha->hw->max_rsp_queues; i++) {
struct rsp_que *rsp = vha->hw->rsp_q_map[i];
if (!test_bit(i, vha->hw->rsp_qid_map))
continue;
if (rsp || !buf) {
qla27xx_insert16(i, buf, len);
qla27xx_insert16(1, buf, len);

2
drivers/scsi/ses.c
View File

@ -99,7 +99,7 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
NULL, SES_TIMEOUT, SES_RETRIES, NULL);
if (unlikely(!ret))
if (unlikely(ret))
return ret;
recv_page_code = ((unsigned char *)buf)[0];

4
drivers/scsi/st.c
View File

@ -4299,11 +4299,11 @@ static int st_probe(struct device *dev)
kref_init(&tpnt->kref);
tpnt->disk = disk;
disk->private_data = &tpnt->driver;
disk->queue = SDp->request_queue;
/* SCSI tape doesn't register this gendisk via add_disk(). Manually
* take queue reference that release_disk() expects. */
if (!blk_get_queue(disk->queue))
if (!blk_get_queue(SDp->request_queue))
goto out_put_disk;
disk->queue = SDp->request_queue;
tpnt->driver = &st_template;
tpnt->device = SDp;