diff options
author | Neil Horman <[email protected]> | 2012-03-09 14:50:24 -0800 |
---|---|---|
committer | James Bottomley <[email protected]> | 2012-03-28 09:31:44 +0100 |
commit | 20dc3811a2adfac65d5974e3b022a85fdbb9e205 (patch) | |
tree | cfabd1f2ebe09711cb45f550d754cca7e125bd89 /tools/perf/util/scripting-engines/trace-event-python.c | |
parent | dd060e74fb4c2513420d8af7371cda2f3eea4fa9 (diff) |
[SCSI] fcoe: reduce contention for fcoe_rx_list lock [v2]
There is potentially lots of contention for the rx_list_lock. On a cpu that is
receiving lots of fcoe traffic, the softirq context has to add and release the
lock for every frame it receives, as does the receiving per-cpu thread. We can
reduce this contention somewhat by altering the per-cpu threads loop such that
when traffic is detected on the fcoe_rx_list, we splice it to a temporary list.
In this way, we can process multiple skbs while only having to acquire and
release the fcoe_rx_list lock once.
[ Braces around single statement while loop removed by Robert Love
to satisfy checkpath.pl. ]
Signed-off-by: Neil Horman <[email protected]>
Acked-by: Vasu Dev <[email protected]>
Signed-off-by: Robert Love <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions