netdev - Re: [RFC PATCH net-next v2 1/2] net: Remove expired routes with separated timers.

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Date: Wed, 17 May 2023 21:36:24 -0600
From: David Ahern <dsahern@...nel.org>
To: Kui-Feng Lee <thinker.li@...il.com>, netdev@...r.kernel.org,
 ast@...nel.org, martin.lau@...ux.dev, kernel-team@...a.com,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc: Kui-Feng Lee <kuifeng@...a.com>
Subject: Re: [RFC PATCH net-next v2 1/2] net: Remove expired routes with
 separated timers.

On 5/17/23 12:33 PM, Kui-Feng Lee wrote:
> @@ -179,6 +181,7 @@ struct fib6_info {
>  
>  	refcount_t			fib6_ref;
>  	unsigned long			expires;
> +	struct fib6_info_timer		*timer;

if this solution moves forward as a separate timer per route with an
expiration, the timer related info can be added inline. Current
fib6_info with a single nexthop is 264B so it is already rounded up to
512B on the allocation.