Re: [PATCH v5 1/2] fs/proc: optimize register ctl_tables

[Meng Tang]

On 2023/3/2 09:12, Luis Chamberlain wrote:

> That would solve the first part -- the fragile odd checks to bail out
> early.  But not the odd accounting we have to do at times. So it begs
> the question if we can instead deprecate register_sysctl_table() and
> then have a counter for us at all times. Also maybe an even simpler
> alternative may just be to see to have the nr_entries be inferred with
> ARRAY_SIZE() if count_subheaders() == 1? I haven't looked into that yet.
>
>    Luis
The current difficulty is to get the ARRAY_SIZE() of table->child table.

It would be great if have a better way to solve this problem.

     Meng