scsi: mpt3sas: Do not mark fw_event workqueue as WQ_MEM_RECLAIM

[ Upstream commit 864449ee ]

The firmware event workqueue should not be marked as WQ_MEM_RECLAIM
as it's doesn't need to make forward progress under memory pressure.
In the current state it will result in a deadlock if the device had been
forcefully removed.

Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/scsi/mpt3sas/mpt3sas_scsih.c

@@ -8853,7 +8853,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
 	    "fw_event_%s%d", ioc->driver_name, ioc->id);
 	ioc->firmware_event_thread = alloc_ordered_workqueue(
-	    ioc->firmware_event_name, WQ_MEM_RECLAIM);
+	    ioc->firmware_event_name, 0);
 	if (!ioc->firmware_event_thread) {
 		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
 		    ioc->name, __FILE__, __LINE__, __func__);