When performing an async scan, make sure the kthread doing scanning
doesn't start before the scsi host is fully initialized.
Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ipr.c | 9 +++++++++
drivers/scsi/ipr.h | 1 +
2 files changed, 10 insertions(+)
diff -puN drivers/scsi/ipr.c~ipr_async_scan_fixup drivers/scsi/ipr.c
--- linux-2.6.git/drivers/scsi/ipr.c~ipr_async_scan_fixup 2016-06-01 21:04:14.088698640 -0500
+++ linux-2.6.git-bjking1/drivers/scsi/ipr.c 2016-06-10 15:35:56.738201739 -0500
@@ -3287,6 +3287,11 @@ static void ipr_worker_thread(struct wor
return;
}
+ if (!ioa_cfg->scan_enabled) {
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return;
+ }
+
restart:
do {
did_work = 0;
@@ -10360,6 +10365,7 @@ static void ipr_remove(struct pci_dev *p
static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
{
struct ipr_ioa_cfg *ioa_cfg;
+ unsigned long flags;
int rc, i;
rc = ipr_probe_ioa(pdev, dev_id);
@@ -10412,7 +10418,10 @@ static int ipr_probe(struct pci_dev *pde
}
}
+ spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
+ ioa_cfg->scan_enabled = 1;
schedule_work(&ioa_cfg->work_q);
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
return 0;
}
diff -puN drivers/scsi/ipr.h~ipr_async_scan_fixup drivers/scsi/ipr.h
--- linux-2.6.git/drivers/scsi/ipr.h~ipr_async_scan_fixup 2016-06-01 21:04:17.186678232 -0500
+++ linux-2.6.git-bjking1/drivers/scsi/ipr.h 2016-06-10 15:35:56.739201727 -0500
@@ -1475,6 +1475,7 @@ struct ipr_ioa_cfg {
u8 in_ioa_bringdown:1;
u8 ioa_unit_checked:1;
u8 dump_taken:1;
+ u8 scan_enabled:1;
u8 scan_done:1;
u8 needs_hard_reset:1;
u8 dual_raid:1;
_
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