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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,
 linux-mm@...ck.org, akpm@...ux-foundation.org, x86@...nel.org, bp@...en8.de,
 brauner@...nel.org, bristot@...hat.com, bsegall@...gle.com,
 dave.hansen@...ux.intel.com, dianders@...omium.org,
 dietmar.eggemann@....com, eric.devolder@...cle.com, hca@...ux.ibm.com,
 hch@...radead.org, hpa@...or.com, jacob.jun.pan@...ux.intel.com,
 jgg@...pe.ca, jpoimboe@...nel.org, jroedel@...e.de, juri.lelli@...hat.com,
 kent.overstreet@...ux.dev, kinseyho@...gle.com,
 kirill.shutemov@...ux.intel.com, lstoakes@...il.com, luto@...nel.org,
 mgorman@...e.de, mic@...ikod.net, michael.christie@...cle.com,
 mingo@...hat.com, mjguzik@...il.com, mst@...hat.com, npiggin@...il.com,
 peterz@...radead.org, pmladek@...e.com, rick.p.edgecombe@...el.com,
 rostedt@...dmis.org, surenb@...gle.com, tglx@...utronix.de,
 urezki@...il.com, vincent.guittot@...aro.org
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(-)

..


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