Re: [PATCH rcu 0/4] Refactor TASKS_RCU for lazy preemption

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Feb 22, 2024 at 04:26:18PM -0800, Paul E. McKenney wrote:
> Hello!

Hi!

> This series refactors the NEED_TASKS_RCU option so that the conditional
> processing is in one place in kernel/rcu/Kconfig.  This makes it easier
> to make sure that Tasks RCU is enabled in PREEMPT_AUTO kernels, given
> that such kernels are preemptible, even if only lazily so.  After all,
> it takes only one lazy preemption from a trampoline to significantly
> degrade your kernel's actuarial statistics.
> 
> 1.	Create NEED_TASKS_RCU to factor out enablement logic.
> 
> 2.	Select new NEED_TASKS_RCU Kconfig option.
> 
> 3.	Select new NEED_TASKS_RCU Kconfig option.
> 
> 4.	Select new NEED_TASKS_RCU Kconfig option.

For the series:

Acked-by: Mark Rutland <mark.rutland@xxxxxxx>

Mark.




[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux