On Fri, Sep 23, 2005 at 12:02:18PM +0200, Eric Dumazet wrote:
> Hi all
>
> Now that RCU applied on 'struct file' seems stable, we can place f_rcuhead
> in a memory location that is not anymore used at call_rcu(&f->f_rcuhead,
> file_free_rcu) time, to reduce the size of this critical kernel object.
>
> The trick I used is to move f_rcuhead and f_list in an union and defining
> macros to access f_list and f_rcuhead
>
> Unfortunatly f_list was also used in IPVS so I had to change
> include/net/ip_vs.h and net/ipv4/ipvs/ip_vs_ctl.c, changing their f_list to
> ipvs_f_list to avoid name clash.
>
> (This is why I send this mail to IPVS maintainers)
Please just change all callers to use the union, there's not very many
of them.
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