Re: [PATCH 0/2] vtime: Remove pair of seqcount on context switch

[Ingo Molnar]

* Frederic Weisbecker <frederic@xxxxxxxxxx> wrote:

> Extracted from a larger queue that fixes kcpustat on nohz_full, these
> two patches have value on their own as they remove two write barriers
> on nohz_full context switch.
> 
> Frederic Weisbecker (2):
>   vtime: Rename vtime_account_system() to vtime_account_kernel()
>   vtime: Spare a seqcount lock/unlock cycle on context switch
> 
>  arch/ia64/kernel/time.c          |  4 +--
>  arch/powerpc/kernel/time.c       |  6 ++--
>  arch/s390/kernel/vtime.c         |  4 +--
>  include/linux/context_tracking.h |  4 +--
>  include/linux/vtime.h            | 38 ++++++++++++------------
>  kernel/sched/cputime.c           | 50 ++++++++++++++++++--------------
>  6 files changed, 57 insertions(+), 49 deletions(-)

Which tree is this against? Doesn't apply cleanly to v5.4-rc2 nor v5.3. 
Does it have any prereqs perhaps?

Thanks,

	Ingo