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Date:   Thu, 21 Jan 2021 16:19:22 -0800
From:   Minchan Kim <>
Subject: Re: [PATCH v5 1/2] lib: stackdepot: Add support to configure

On Mon, Jan 18, 2021 at 03:26:41PM +0530, wrote:
> From: Yogesh Lal <>
> Aim is to have configurable value for  STACK_HASH_SIZE,
> so depend on use case one can configure it.
> One example is of Page Owner, default value of
> STACK_HASH_SIZE lead stack depot to consume 8MB of static memory.
> Making it configurable and use lower value helps to enable features like
> CONFIG_PAGE_OWNER without any significant overhead.

The description could be improved to prevent confusing.
CONFIG_PAGE_OWNER works only if page_owner=on via kernel parameter
on CONFIG_PAGE_OWNER configured system.
Thus, unless admin enable it via command line option, the stackdepot
will just waste 8M memory without any customer.

> Signed-off-by: Yogesh Lal <>
> Signed-off-by: Vinayak Menon <>
> Signed-off-by: Vijayanand Jitta <>
Reviewed-by: Minchan Kim <>

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