Re: [kernel-hardening] [PATCH v2 2/2] fork: make number of cached stacks (vmapped) configurable using Kbuild

[Eric Biggers]

On Thu, Feb 09, 2017 at 01:03:47PM +0900, Hoeun Ryu wrote:
> +config NR_VMAP_STACK_CACHE
> +	int "Number of cached stacks"
> +	default "2"
> +	depends on VMAP_STACK
> +	help
> +	  This determines how many stacks can be cached for virtually
> +	  mapped kernel stacks.
> +

Can you explain in the help text under what circumstances someone should change
this, and to what value?  As-is, it seems like somewhat of a useless config
option which no one will ever change.

- Eric