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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2018-05-11 03:17:20 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-05-25 22:17:19 +0300 |
| commit | 24dd8d996f3b1d5adf86a3ea1b60e735853a6bbe (patch) | |
| tree | dc3ef9340ab33c62a6368d333a59c30d5f4ad214 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 8ed8bba70b4355b1ba029b151ade84475dd12991 (diff) | |
| download | linux-24dd8d996f3b1d5adf86a3ea1b60e735853a6bbe.tar.xz | |
media: usbtv: Implement wait_prepare and wait_finish
This driver is currently specifying a vb2_queue lock,
which means it straightforward to implement wait_prepare
and wait_finish.
Having these callbacks releases the queue lock while blocking,
which improves latency by allowing for example streamoff
or qbuf operations while waiting in dqbuf.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions