netdev - Re: [PATCH net 1/3] flex_array: make FLEX_ARRAY_BASE_SIZE the same value of FLEX_ARRAY_PART

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Date:   Wed, 05 Dec 2018 20:38:36 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
        marcelo.leitner@...il.com, nhorman@...driver.com,
        dave@...ux.vnet.ibm.com, khorenko@...tuozzo.com
Subject: Re: [PATCH net 1/3] flex_array: make FLEX_ARRAY_BASE_SIZE the same
 value of FLEX_ARRAY_PART_SIZE

From: Xin Long <lucien.xin@...il.com>
Date: Wed,  5 Dec 2018 14:49:40 +0800

> This patch is to separate the base data memory from struct flex_array and
> save it into a page. With this change, total_nr_elements of a flex_array
> can grow or shrink without having the old element's memory changed when
> the new size of the flex_arry crosses FLEX_ARRAY_BASE_SIZE, which will
> be added in the next patch.
> 
> Suggested-by: Neil Horman <nhorman@...driver.com>
> Signed-off-by: Xin Long <lucien.xin@...il.com>

This needs to be reviewed by the flex array hackers and lkml.

It can't just get reviewed on netdev alone.