29 Sep
2021
29 Sep
'21
5:54 p.m.
On Tue, Sep 28, 2021, Dongli Zhang wrote:
On 9/27/21 12:22 PM, Sean Christopherson wrote: Perhaps a linked list is more suitable to here (when there are 1024 cpus and the task is bound to both 1 and 1022) ... to pre-save the possible cpus in a list and to only move to next cpu in the list for each iteration.
However, I think min_cpu/max_cpu is good enough for selttests case.
Yeah, it's annoying that there's no CPU_SET_FOR_EACH so that x86 could optimize it to use BSF :-/
Would you please let me know if you would like to send above with my Reported-by, or if you would like me to send with your Suggested-by.
If you don't mind, I'll send a patch, I want to fiddle with the migration loop to see if I can make it less magical/ugly.