linux-kernel - Re: [PATCH v3] Hugetlb pages should not be reserved by shmat() if SHM

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Message-Id: <20240207180108.6a181d9fa5b404f78c0b4b22@linux-foundation.org>
Date: Wed, 7 Feb 2024 18:01:08 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Muchun Song <muchun.song@...ux.dev>
Cc: Prakash Sangappa <prakash.sangappa@...cle.com>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, mike.kravetz@...cle.com
Subject: Re: [PATCH v3] Hugetlb pages should not be reserved by shmat() if
 SHM_NORESERVE

On Wed, 24 Jan 2024 15:03:15 +0800 Muchun Song <muchun.song@...ux.dev> wrote:

> > Fix is to ensure that hugetlb pages are not reserved for SHM_HUGETLB shared
> > memory in the shmat() call.
> > Signed-off-by: Prakash Sangappa <prakash.sangappa@...cle.com>
> 
> BTW, it is better to add a Fixes tag to specify which commit
> that this commit aims to fix.

s/better/essential/

However this issue appears to pass the "been there forever" test, so
I'll send it to Linus as-is.