diff options
| author | Fabrice Gasnier <[email protected]> | 2014-11-04 17:08:05 +0100 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-11-05 16:22:56 -0500 |
| commit | 16ee817e4365cdfe665ae8d6f6bc8f09befa1272 (patch) | |
| tree | 32e8e721051138198ae714cdcbcb3cacc6bbe444 /tools/perf/scripts/python/futex-contention.py | |
| parent | b994ca6b67ade73c2d69c00a449ad7006cd4546e (diff) | |
stmmac: fix stmmac_tx_avail should be called with TX locked
stmmac_tx_avail() may lie if used unprotected. It's using cur_tx
and dirty_tx index. These index may be already in use by tx_clean
when entering xmit routine. So, this should be called locked.
This can cause transmit queue to be stuck, with following message:
NETDEV WATCHDOG: eth0 (stmmaceth): transmit queue 0 timed out
Signed-off-by: Fabrice Gasnier <[email protected]>
Acked-by: Giuseppe Cavallaro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions