linux-stable/drivers/media
Hans Verkuil 879aa24d63 [media] V4L: improve the BKL replacement heuristic
The BKL replacement mutex had some serious performance side-effects on
V4L drivers. It is replaced by a better heuristic that works around the
worst of the side-effects.

Read the v4l2-dev.c comments for the whole sorry story. This is a
temporary measure only until we can convert all v4l drivers to use
unlocked_ioctl.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-01 20:10:19 -02:00
..
common i2c: Drivers shouldn't include <linux/i2c-id.h> 2010-11-15 22:40:38 +01:00
dvb [media] BZ#22292: dibx000_common: Restore i2c algo pointer 2010-11-08 22:32:09 -02:00
IR Input: ir-keytable - fix uninitialized variable warning 2010-10-31 21:05:43 -04:00
radio [media] radio-timb: convert to unlocked_ioctl 2010-12-01 20:10:15 -02:00
video [media] V4L: improve the BKL replacement heuristic 2010-12-01 20:10:19 -02:00
Kconfig [media] v4l: kill the BKL 2010-11-08 22:35:57 -02:00
Makefile V4L/DVB (13612): IR: Move common IR code to drivers/media/IR 2009-12-16 00:18:42 -02:00