linux-kernel - Re: [RFC 06/14] fork: zero vmap stack using clear

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Message-ID: <7e5d6e69-5f65-4b70-8220-6d98457ed17a@wanadoo.fr>
Date: Sun, 17 Mar 2024 15:48:26 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Pasha Tatashin <pasha.tatashin@...een.com>, linux-kernel@...r.kernel.org,
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Subject: Re: [RFC 06/14] fork: zero vmap stack using clear_page() instead of
 memset()

Le 11/03/2024 à 17:46, Pasha Tatashin a écrit :
> In preporation for dynamic kernel stacks do not zero the whole span of

Nit: preparation

> the stack, but instead only the pages that are part of the vm_area.
> 
> This is because with dynamic stacks we might have only partially
> populated stacks.
> 
> Signed-off-by: Pasha Tatashin <pasha.tatashin@...een.com>
> ---
>   kernel/fork.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)

..