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author | Bhaktipriya Shridhar <bhaktipriya96@gmail.com> | 2016-07-02 13:55:40 +0530 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2016-08-11 17:54:55 +0300 |
commit | b59ac9a3dbcf22c38b0bb958a62bf6b787a449a8 (patch) | |
tree | 9f43d9f4835305b19c4b2d3fe948eeb4ca9dc629 /drivers/video/fbdev/arkfb.c | |
parent | 7d4a8088f69eac7e3391da6905e817d52cbbc79c (diff) |
omapfb: panel-dsi-cm: Remove deprecated create_singlethread_workqueue
The workqueue "workqueue" has only a single workitem(&ddata->ulps_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.
dsicm_remove() calls dsicm_cancel_ulps_work which uses
cancel_delayed_work() 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: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/fbdev/arkfb.c')
0 files changed, 0 insertions, 0 deletions