diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2022-09-07 23:58:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-09 09:30:18 +0200 |
| commit | 9b91a65230784a9ef644b8bdbb82a79ba4ae9456 (patch) | |
| tree | 3eea9295f4086b0435701f94a8f72d9b36eb4160 /drivers/usb/gadget/function/uvc_v4l2.c | |
| parent | d818320ea200b02f2fea693b2be204f1990bb7e9 (diff) | |
usb: gadget: uvc: increase worker prio to WQ_HIGHPRI
This patch is changing the simple workqueue in the gadget driver to be
allocated as async_wq with a higher priority. The pump worker, that is
filling the usb requests, will have a higher priority and will not be
scheduled away so often while the video stream is handled. This will
lead to fewer streaming underruns.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220907215818.2670097-1-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/function/uvc_v4l2.c')
| -rw-r--r-- | drivers/usb/gadget/function/uvc_v4l2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index 511f106f9843..d6dbf9b763b2 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -170,7 +170,7 @@ uvc_v4l2_qbuf(struct file *file, void *fh, struct v4l2_buffer *b) return ret; if (uvc->state == UVC_STATE_STREAMING) - schedule_work(&video->pump); + queue_work(video->async_wq, &video->pump); return ret; } |