4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hannes Reinecke <h...@suse.de>
[ Upstream commit 864449eea7c600596e305ffdc4a6a846414b222c ]
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.re...@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subram...@broadcom.com>
Acked-by: Sreekanth Reddy <sreekanth.re...@broadcom.com>
Signed-off-by: Hannes Reinecke <h...@suse.com>
Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -8853,7 +8853,7 @@ _scsih_probe(struct pci_dev *pdev, const
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__);
