Re: [PATCH v2 03/10] x86/mm: Give each mm TLB flush generation a unique ID

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On 06/13/2017 09:56 PM, Andy Lutomirski wrote:
>  typedef struct {
> +	/*
> +	 * ctx_id uniquely identifies this mm_struct.  A ctx_id will never
> +	 * be reused, and zero is not a valid ctx_id.
> +	 */
> +	u64 ctx_id;

Ahh, and you need this because an mm itself might get reused by being
freed and reallocated?

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