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[PATCHv2,0/1] Fix deadlock problem and make performance better

Message ID 1567322773-5183-1-git-send-email-yanjun.zhu@oracle.com
Headers show
Series Fix deadlock problem and make performance better | expand

Message

Zhu Yanjun Sept. 1, 2019, 7:26 a.m. UTC 
When running with about 1Gbit/ses for very long time, running ifconfig
and netstat causes dead lock. These symptoms are similar to the
commit 5f6b4e14cada ("net: dsa: User per-cpu 64-bit statistics"). After
replacing network devices statistics with per-cpu 64-bit statistics,
the dead locks disappear even after very long time running with 1Gbit/sec.

Based on Eric's advice, "If the loops are ever restarted, the
storage->fields will have been modified multiple times.".

A similar change in the commit 5f6b4e14cada ("net: dsa: User per-cpu
64-bit statistics") is borrowed to fix the above problem.

Zhu Yanjun (1):
  forcedeth: use per cpu to collect xmit/recv statistics

 drivers/net/ethernet/nvidia/forcedeth.c | 143 ++++++++++++++++++++++----------
 1 file changed, 99 insertions(+), 44 deletions(-)