On 06/16/2015 01:37 AM, Sreekanth Reddy wrote:
> Created a thread using alloc_ordered_workqueue() API in order to process
> the works from firmware Work-queue sequentially instead of
> create_singlethread_workqueue() API.
>
> Changes in v1:
> No need to check for backport compatibility in the upstream kernel.
> so removing the else section where driver use
> create_singlethread_workqueue() API if alloc_ordered_workqueue() API is
> not defined, This else section is not required since in the latest upstream
> kernel this alloc_ordered_workqueue() API is always defined.
>
> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxxxxxxxx>
> ---
> drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> index b848458..7e5926c 100644
> --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> @@ -8085,8 +8085,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> /* event thread */
> snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
> "fw_event%d", ioc->id);
> - ioc->firmware_event_thread = create_singlethread_workqueue(
> - ioc->firmware_event_name);
> + ioc->firmware_event_thread = alloc_ordered_workqueue(
> + ioc->firmware_event_name, WQ_MEM_RECLAIM);
> if (!ioc->firmware_event_thread) {
> pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
> ioc->name, __FILE__, __LINE__, __func__);
>
Hi Sreekanth,
Is this change still needed after e09c2c2954684 workqueue: apply
__WQ_ORDERED to create_singlethread_workqueue() ? (3.17+)
In upstream, this change looks cosmetic (unless Tejun has a preference
for one over the other), but maybe converting to alloc_ordered_workqueue
keeps your in house version in closer sync?
Thanks,
-- Joe
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