netdev - Re: [PATCH net-next-2.6] net: sk_dst

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Date:	Wed, 14 Apr 2010 01:04:05 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH net-next-2.6] net: sk_dst_cache RCUification

Le mardi 13 avril 2010 à 01:52 -0700, David Miller a écrit :

> Applied, thanks for doing this work Eric.

Thanks David :)

I am now working on sk_callback_lock case, to speedup
sock_def_readable(), sock_def_write_space() in typical cases
(SOCK_FASYNC not set)

Instead of using rcu on whole "struct socket", my plan is to use a small
structure :

struct wait_queue_head_rcu {
	wait_queue_head_t wait;
	struct rcu_head	  rcu;
} ____cacheline_aligned_in_smp;

and make sk->sk_sleep points to this 'wait' field.


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