linux/drivers/media/usb
Bhaktipriya Shridhar edf096be83 [media] sn9c20x: Remove deprecated create_singlethread_workqueue
The workqueue "work_thread" is involved in JPEG quality update.
It has a single work item(&sd->work) and hence doesn't require ordering.
Also, it is not being used on a memory reclaim path. Hence, the
singlethreaded workqueue has been replaced with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been flushed in sd_stop0() to ensure that there are no
pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 14:59:17 -03:00
..
airspy [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
as102 [media] drivers/media/usb/as102: constify as102_priv_ops_t structure 2016-02-01 07:31:48 -02:00
au0828 [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
b2c2 [media] media: change email address 2016-01-25 12:01:08 -02:00
cpia2 [media] usb/cpia2_core: clean up a min_t() cast 2016-02-19 08:10:32 -02:00
cx231xx Merge branch 'i2c/for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-05-19 17:48:12 -07:00
dvb-usb scripts/spelling.txt: add "fimware" misspelling 2016-05-19 19:12:14 -07:00
dvb-usb-v2 [media] af9035: fix logging 2016-06-09 08:47:48 -03:00
em28xx [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
go7007 [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
gspca [media] sn9c20x: Remove deprecated create_singlethread_workqueue 2016-07-08 14:59:17 -03:00
hackrf [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
hdpvr [media] hdpvr: hide unused variable 2016-02-01 13:14:27 -02:00
msi2500 [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
pvrusb2 [media] pvrusb2: fix smatch errors 2016-04-20 15:48:29 -03:00
pwc [media] pwc: hide unused label 2016-07-08 14:56:22 -03:00
s2255 [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
siano [media] media_device: move allocation out of media_device_*_init 2016-02-23 07:19:39 -03:00
stk1160 [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
stkwebcam [media] stk-webcam: Delete an unnecessary check before the function call "vfree" 2015-03-02 14:53:27 -03:00
tm6000 [media] include/media: split I2C headers from V4L2 core 2015-11-17 06:57:11 -02:00
ttusb-budget [media] dvb: Get rid of typedev usage for enums 2015-06-09 17:47:35 -03:00
ttusb-dec [media] ttusb-dec: constify ttusbdecfe_config structure 2015-11-19 11:22:15 -02:00
usbtv [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
usbvision usbvision: remove some unused vars 2016-06-24 08:30:15 -03:00
uvc [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
zr364xx [media] usb drivers: use BUG_ON() instead of if () BUG 2015-06-09 18:30:09 -03:00
Kconfig [media] tlg2300: move to staging in preparation for removal 2014-12-16 23:21:43 -02:00
Makefile [media] tlg2300: move to staging in preparation for removal 2014-12-16 23:21:43 -02:00