From: no-reply@sashiko.virtuozzo.com
To: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>,
Vasileios Almpanis <vasileios.almpanis@virtuozzo.com>,
Konstantin Khorenko <khorenko@virtuozzo.com>
Cc: devel@openvz.org
Subject: Re: [Devel] [PATCH hci-8.1 v2 3/4] shmem: reject the mpol= mount option in VE
Date: Fri, 6 Nov 2026 14:05:53 +0000 [thread overview]
Message-ID: <010701a1b12e236c-6011e357-67bb-4d4b-a569-9830c90a4041-000000@eu-central-1.amazonses.com> (raw)
In-Reply-To: <20261106-b4-prep-khorenko-vstor-153679-mbind-ve-v2-3-6327b23a2d93@virtuozzo.com>
> A CT is meant to see a kernel without NUMA support, so the NUMA API
> syscalls return -ENOSYS in a non-super VE. The tmpfs mpol= mount option
> still lets a CT set a NUMA memory policy for all files of a tmpfs
> mount.
>
> Reject mpol= in a non-super VE the way a kernel built without
> CONFIG_NUMA does: the mount fails with -EINVAL and "Unsupported
> parameter 'mpol'".
>
> https://virtuozzo.atlassian.net/browse/VSTOR-153679
>
> Feature: mm: prohibit NUMA API inside CT
> Signed-off-by: Konstantin Khorenko <khorenko@virtuozzo.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.vzint.dev/#/patchset/20261106-b4-prep-khorenko-vstor-153679-mbind-ve-v2-0-6327b23a2d93@virtuozzo.com?part=3
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next prev parent reply other threads:[~2026-11-06 14:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 14:01 [Devel] [PATCH hci-8.1 v2 0/4] mempolicy: prohibit mbind and set_mempolicy_home_node " Konstantin Khorenko
2026-11-06 14:01 ` [Devel] [PATCH hci-8.1 v2 1/4] " Konstantin Khorenko
2026-11-06 14:05 ` no-reply
2026-11-06 14:01 ` [Devel] [PATCH hci-8.1 v2 2/4] selftests/ve: check that the NUMA API syscalls return ENOSYS in a VE Konstantin Khorenko
2026-11-06 14:06 ` no-reply
2026-11-06 14:01 ` [Devel] [PATCH hci-8.1 v2 3/4] shmem: reject the mpol= mount option in VE Konstantin Khorenko
2026-11-06 14:05 ` no-reply [this message]
2026-11-06 14:01 ` [Devel] [PATCH hci-8.1 v2 4/4] selftests/ve: check that tmpfs rejects mpol= in a VE Konstantin Khorenko
2026-11-06 14:07 ` no-reply
2026-11-06 14:19 ` [Devel] [PATCH hci-8.1 v2 0/4] mempolicy: prohibit mbind and set_mempolicy_home_node in VE Vasileios Almpanis
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