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| author | Andrew Lunn <andrew@lunn.ch> | 2018-02-15 14:38:35 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-16 15:37:09 -0500 |
| commit | a61e54063423e9e8d604ea54e6664433946fe6af (patch) | |
| tree | bbd95defbeab98303a0b443ed7e1cb7420a33986 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 377cda13a25513f714ea5b5a765408292ca4627a (diff) | |
net: dsa: mv88e6xxx: Release mutex between each ATU read
The PTP code needs low latency access to the PTP hardware timestamps.
Reading all the ATU entries in one go adds a lot of latency to the PTP
code. So take and release the reg_lock mutex for each individual MAC
address in the ATU, allowing the PTP thread jump in between.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions