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129134e541
The patch partially reverts some of the UAPI bits of the buffer cache management hints. Namely, the queue consistency (memory coherency) user-space hint because, as it turned out, the kernel implementation of this feature was misusing DMA_ATTR_NON_CONSISTENT. The patch reverts both kernel and user space parts: removes the DMA consistency attr functions, rolls back changes to v4l2_requestbuffers, v4l2_create_buffers structures and corresponding UAPI functions (plus compat32 layer) and cleans up the documentation. [hverkuil: fixed a few typos in the commit log] [hverkuil: fixed vb2_core_reqbufs call in drivers/media/dvb-core/dvb_vb2.c] [mchehab: fixed a typo in the commit log: revers->reverts] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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| .. | ||
| cec | ||
| drivers | ||
| dvb | ||
| mediactl | ||
| rc | ||
| v4l | ||
| audio.h.rst.exceptions | ||
| ca.h.rst.exceptions | ||
| cec.h.rst.exceptions | ||
| conf_nitpick.py | ||
| dmx.h.rst.exceptions | ||
| fdl-appendix.rst | ||
| frontend.h.rst.exceptions | ||
| gen-errors.rst | ||
| index.rst | ||
| intro.rst | ||
| lirc.h.rst.exceptions | ||
| Makefile | ||
| media.h.rst.exceptions | ||
| net.h.rst.exceptions | ||
| typical_media_device.svg | ||
| video.h.rst.exceptions | ||
| videodev2.h.rst.exceptions | ||
