Re: [PATCH 0/8] kernel/fork: Move thread stack free otu of the scheduler path.

From: Sebastian Andrzej Siewior
Date: Thu Nov 18 2021 - 09:38:56 EST

+ tglx.

It starts at

On 2021-11-18 15:34:44 [+0100], To linux-kernel@xxxxxxxxxxxxxxx wrote:
> This is a follup-up on the patch
> sched: Delay task stack freeing on RT
> It addresses the review feedback:
> - Decouple stack accounting from its free invocation. The accounting
> happens in do_exit(), the final free call happens later.
> - Add put_task_stack_sched() to finish_task_switch(). Here the VMAP
> stack is cached only. If it fails, or in the !VMAP case then the final
> free happens in delayed_put_task_struct(). This is also an oportunity
> to cache the stack.