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authorEric Dumazet <edumazet@google.com>2018-09-27 09:31:53 -0700
committerDavid S. Miller <davem@davemloft.net>2018-09-28 11:12:28 -0700
commit226a2dd62c5d789088fcf7804fbe5613887870a5 (patch)
treeadfbcbfccb4b9b33bc5b540e3a48fa0a516ea647 /tools/perf/scripts/python/call-graph-from-sql.py
parente71fb423e0dea3c9f98f0101e965426edfe849cd (diff)
ehea: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ehea uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Douglas Miller <dougmill@linux.vnet.ibm.com> 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