On Thu, 2016-06-02 at 13:03 +0800, Pan Xinhui wrote: > change from v3: > a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support > pv-qspinlock > no other patch changed. > and the patch cover letter tilte has changed as only pseries may need > use pv-qspinlock, not all powerpc. > > 1) __pv_wait will not return until *ptr != val as Waiman gives me a tip. > 2) support lock holder serching by storing cpu number into a hash > table(implemented as an array) > This is because lock_stealing hit too much, up to 10%~20% of all the > successful lock(), and avoid > vcpu slices bounce.
You sent v4 last night, why did you resend again? RESEND usually means "I sent this a while ago and got no response so here it is again". cheers
