On 04/27/23 07:53, Juri Lelli wrote: > Hi, > > On 27/04/23 10:58, Xuewen Yan wrote: > > HI Juri, > > > > Would this patch be merged tobe stable-rc? In kernel5.15, we also find > > that the rwsem would be blocked for a long time, when we change the > > task's cpuset cgroup. > > And when we revert to the mutex, the delay would disappear. > > Honestly, I'm not sure. This change is mostly improving performance, but > it is also true that it's fixing some priority inheritance corner cases. > So, I'm not sure it qualifies for stable, but it would be probably good to > have it there. I'm under the impression we need the whole lot back to stable, no? I'm not sure if we can decouple this patch from the rest. FWIW, I did my testing on 5.15 - so we can definitely help with the backport and testing for 5.15 and 5.10. Thanks! -- Qais Yousef
