Yes, Eelco, this is the last revision and no further comments for
revision came in
eddy
On 2023/2/6 19:21, Eelco Chaudron wrote:
On 5 Feb 2023, at 2:35, Eddy Tao wrote:
Use actual CPU number instead of hardcoded value to decide the size
of 'cpu_used_mask' in 'struct sw_flow'. Below is the reason.
'struct cpumask cpu_used_mask' is embedded in struct sw_flow.
Its size is hardcoded to CONFIG_NR_CPUS bits, which can be
8192 by default, it costs memory and slows down ovs_flow_alloc.
To address this:
Redefine cpu_used_mask to pointer.
Append cpumask_size() bytes after 'stat' to hold cpumask.
Initialization cpu_used_mask right after stats_last_writer.
APIs like cpumask_next and cpumask_set_cpu never access bits
beyond cpu count, cpumask_size() bytes of memory is enough.
Signed-off-by: Eddy Tao <[email protected]>
The changes look good to me. Hopefully this is the last revision ;)
Acked-by: Eelco Chaudron <[email protected]>
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