| Message ID | 20160604135901.GA29897@Karyakshetra (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | f9f905b00b878243e1e3cbe32b920f86a8aaa68e |
| Delegated to: | Kalle Valo |
| Headers | show |
Bhaktipriya Shridhar <bhaktipriya96@gmail.com> writes: > alloc_workqueue replaces deprecated create_workqueue(). > > In if_sdio.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_sdio_host_to_card_worker. > The workitem is involved in sending packets to firmware. > Forward progress under memory pressure is a requirement here. > > In if_spi.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_spi_host_to_card_worker. > The workitem is involved in sending command packets from the host. > Forward progress under memory pressure is a requirement here. > > Dedicated workqueues have been used in both cases since the workitems > on the workqueues are involved in normal device operation with > WQ_MEM_RECLAIM set to gurantee forward progress under memory pressure. > Since there are only a fixed number of work items, explicit concurrency > limit is unnecessary. > > flush_workqueue is unnecessary since destroy_workqueue() itself calls > drain_workqueue() which flushes repeatedly till the workqueue > becomes empty. Hence the calls to flush_workqueue() before > destroy_workqueue() have been dropped. > > Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> "libertas:" as a prefix is enough, no need to put the full path to the title. I can fix that this time. You can actually check yourself what prefix is commonly used in a particular file or directory: $ git log --oneline --no-merges -10 drivers/net/wireless/marvell/libertas/ 57fbcce37be7 cfg80211: remove enum ieee80211_band 3691ac4a9c95 libertas: fix an error code in probe 143e49458424 libertas: add an cfg80211 interface for powersaving 0b8802dc5f59 libertas: fix ps-mode related removal problems fada24a54770 libertas: go back to ps mode without commands pending 57954b94cad7 libertas: do not confirm sleep if commands are pending fae4f9f78ab1 libertas: check whether bus can do more than polling 0a7701b4defc libertas: fix pointer bugs for PS_MODE commands 6d91ff7acc90 libertas: cleanup a variable name 0a38c8e1b592 libertas: check for NULL before use $
On Sat, Jun 4, 2016 at 7:59 PM, Kalle Valo <kvalo@codeaurora.org> wrote: > > $ git log --oneline --no-merges -10 Sure. Will keep that in mind. Thanks, Bhaktipriya -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Sat, Jun 04, 2016 at 07:29:01PM +0530, Bhaktipriya Shridhar wrote: > alloc_workqueue replaces deprecated create_workqueue(). > > In if_sdio.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_sdio_host_to_card_worker. > The workitem is involved in sending packets to firmware. > Forward progress under memory pressure is a requirement here. > > In if_spi.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_spi_host_to_card_worker. > The workitem is involved in sending command packets from the host. > Forward progress under memory pressure is a requirement here. > > Dedicated workqueues have been used in both cases since the workitems > on the workqueues are involved in normal device operation with > WQ_MEM_RECLAIM set to gurantee forward progress under memory pressure. > Since there are only a fixed number of work items, explicit concurrency > limit is unnecessary. > > flush_workqueue is unnecessary since destroy_workqueue() itself calls > drain_workqueue() which flushes repeatedly till the workqueue > becomes empty. Hence the calls to flush_workqueue() before > destroy_workqueue() have been dropped. > > Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Thanks.
Bhaktipriya Shridhar <bhaktipriya96@gmail.com> wrote: > alloc_workqueue replaces deprecated create_workqueue(). > > In if_sdio.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_sdio_host_to_card_worker. > The workitem is involved in sending packets to firmware. > Forward progress under memory pressure is a requirement here. > > In if_spi.c, the workqueue card->workqueue has workitem > &card->packet_worker, which is mapped to if_spi_host_to_card_worker. > The workitem is involved in sending command packets from the host. > Forward progress under memory pressure is a requirement here. > > Dedicated workqueues have been used in both cases since the workitems > on the workqueues are involved in normal device operation with > WQ_MEM_RECLAIM set to gurantee forward progress under memory pressure. > Since there are only a fixed number of work items, explicit concurrency > limit is unnecessary. > > flush_workqueue is unnecessary since destroy_workqueue() itself calls > drain_workqueue() which flushes repeatedly till the workqueue > becomes empty. Hence the calls to flush_workqueue() before > destroy_workqueue() have been dropped. > > Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> > Acked-by: Tejun Heo <tj@kernel.org> Thanks, 1 patch applied to wireless-drivers-next.git: f9f905b00b87 libertas: Remove create_workqueue
diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.c b/drivers/net/wireless/marvell/libertas/if_sdio.c index 13eae9f..47f4a14 100644 --- a/drivers/net/wireless/marvell/libertas/if_sdio.c +++ b/drivers/net/wireless/marvell/libertas/if_sdio.c @@ -1228,7 +1228,7 @@ static int if_sdio_probe(struct sdio_func *func, } spin_lock_init(&card->lock); - card->workqueue = create_workqueue("libertas_sdio"); + card->workqueue = alloc_workqueue("libertas_sdio", WQ_MEM_RECLAIM, 0); INIT_WORK(&card->packet_worker, if_sdio_host_to_card_worker); init_waitqueue_head(&card->pwron_waitq); @@ -1326,7 +1326,6 @@ static void if_sdio_remove(struct sdio_func *func) lbs_stop_card(card->priv); lbs_remove_card(card->priv); - flush_workqueue(card->workqueue); destroy_workqueue(card->workqueue); while (card->packets) { diff --git a/drivers/net/wireless/marvell/libertas/if_spi.c b/drivers/net/wireless/marvell/libertas/if_spi.c index 82c0796..c3a53cd 100644 --- a/drivers/net/wireless/marvell/libertas/if_spi.c +++ b/drivers/net/wireless/marvell/libertas/if_spi.c @@ -1180,7 +1180,7 @@ static int if_spi_probe(struct spi_device *spi) priv->fw_ready = 1; /* Initialize interrupt handling stuff. */ - card->workqueue = create_workqueue("libertas_spi"); + card->workqueue = alloc_workqueue("libertas_spi", WQ_MEM_RECLAIM, 0); INIT_WORK(&card->packet_work, if_spi_host_to_card_worker); INIT_WORK(&card->resume_work, if_spi_resume_worker); @@ -1208,7 +1208,6 @@ static int if_spi_probe(struct spi_device *spi) release_irq: free_irq(spi->irq, card); terminate_workqueue: - flush_workqueue(card->workqueue); destroy_workqueue(card->workqueue); lbs_remove_card(priv); /* will call free_netdev */ free_card: @@ -1235,7 +1234,6 @@ static int libertas_spi_remove(struct spi_device *spi) lbs_remove_card(priv); /* will call free_netdev */ free_irq(spi->irq, card); - flush_workqueue(card->workqueue); destroy_workqueue(card->workqueue); if (card->pdata->teardown) card->pdata->teardown(spi);
alloc_workqueue replaces deprecated create_workqueue(). In if_sdio.c, the workqueue card->workqueue has workitem &card->packet_worker, which is mapped to if_sdio_host_to_card_worker. The workitem is involved in sending packets to firmware. Forward progress under memory pressure is a requirement here. In if_spi.c, the workqueue card->workqueue has workitem &card->packet_worker, which is mapped to if_spi_host_to_card_worker. The workitem is involved in sending command packets from the host. Forward progress under memory pressure is a requirement here. Dedicated workqueues have been used in both cases since the workitems on the workqueues are involved in normal device operation with WQ_MEM_RECLAIM set to gurantee forward progress under memory pressure. Since there are only a fixed number of work items, explicit concurrency limit is unnecessary. flush_workqueue is unnecessary since destroy_workqueue() itself calls drain_workqueue() which flushes repeatedly till the workqueue becomes empty. Hence the calls to flush_workqueue() before destroy_workqueue() have been dropped. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> --- drivers/net/wireless/marvell/libertas/if_sdio.c | 3 +-- drivers/net/wireless/marvell/libertas/if_spi.c | 4 +--- 2 files changed, 2 insertions(+), 5 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html