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Commit 5a5d9c70 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Greg Kroah-Hartman
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scsi: mpt3sas: Do not mark fw_event workqueue as WQ_MEM_RECLAIM 



[ 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.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Acked-by: default avatarSreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Signed-off-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8f2f418e

drivers/scsi/mpt3sas/mpt3sas_scsih.c

+1 −1
Original line number Diff line number Diff line
@@ -8637,7 +8637,7 @@ _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__);