Soeren Moch 9e416faea8 media: dvb_ringbuffer: Add memory barriers ...

commit ca6e6126db upstream.

Implement memory barriers according to Documentation/circular-buffers.txt:
- use smp_store_release() to update ringbuffer read/write pointers
- use smp_load_acquire() to load write pointer on reader side
- use ACCESS_ONCE() to load read pointer on writer side

This fixes data stream corruptions observed e.g. on an ARM Cortex-A9
quad core system with different types (PCI, USB) of DVB tuners.

Signed-off-by: Soeren Moch <smoch@web.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-08-20 18:09:18 +02:00

..

demux.h

[media] demux.h: Convert MPEG-TS demux caps to an enum

2015-10-10 10:29:08 -03:00

dmxdev.c

[media] dvb: get rid of enum dmx_success

2015-10-06 19:53:02 -03:00

dmxdev.h

[media] remove include/linux/dvb/dmx.h

2012-10-19 07:29:17 -03:00

dvb_ca_en50221.c

[media] DocBook: add dvb_ca_en50221.h to documentation

2015-08-22 07:09:29 -03:00

dvb_ca_en50221.h

[media] dvb_ca_en50221.h: Make checkpatch.pl happy

2015-10-06 18:40:01 -03:00

dvb_demux.c

[media] dvb: get rid of enum dmx_success

2015-10-06 19:53:02 -03:00

dvb_demux.h

[media] demux.h: Remove duplicated enum

2013-04-08 06:53:15 -03:00

dvb_filter.c

[media] dvb: move the dvb core one level up

2012-08-13 23:08:14 -03:00

dvb_filter.h

[media] dvb: move the dvb core one level up

2012-08-13 23:08:14 -03:00

dvb_frontend.c

media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode

2016-03-03 15:07:13 -08:00

dvb_frontend.h

[media] dvb_frontend.h: document the struct dvb_frontend

2015-08-22 14:52:59 -03:00

dvb_math.c

[media] dvb: move the dvb core one level up

2012-08-13 23:08:14 -03:00

dvb_math.h

[media] DocBook: add dvb_math.h to documentation

2015-08-22 09:05:40 -03:00

dvb_net.c

[media] dvb: get rid of enum dmx_success

2015-10-06 19:53:02 -03:00

dvb_net.h

[media] dvb: push down ioctl lock in dvb_usercopy

2012-12-27 15:44:21 -02:00

dvb_ringbuffer.c

media: dvb_ringbuffer: Add memory barriers

2016-08-20 18:09:18 +02:00

dvb_ringbuffer.h

[media] DocBook: add dvb_ringbuffer.h to documentation

2015-08-22 09:05:45 -03:00

dvb-usb-ids.h

[media] Add Terratec H7 Revision 4 to DVBSky driver

2015-10-03 11:08:12 -03:00

dvbdev.c

[media] dvbdev: use adapter arg for dvb_create_media_graph()

2015-03-02 11:25:38 -03:00

dvbdev.h

[media] dvbdev: Remove two cut-and-paste errors

2015-10-01 09:18:09 -03:00

Kconfig

[media] dvb: move the dvb core one level up

2012-08-13 23:08:14 -03:00

Makefile

[media] dvb: move the dvb core one level up

2012-08-13 23:08:14 -03:00