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[130.117.225.111]) by mx.google.com with ESMTPS id 5b1f17b1804b1-4b73ba74320si4571125e9.0.2026.11.06.06.01.43 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Nov 2026 06:01:43 -0800 (PST) Received-SPF: pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) client-ip=130.117.225.111; Authentication-Results: mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b=DnrD8ahj; spf=pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=khorenko@virtuozzo.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=virtuozzo.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Message-Id:Content-Type:MIME-Version:Subject:Date :From; bh=PFDRDDqwqaUU4fow9nUZK8CUhJF6JBBoq6Ly4tR69S4=; b=DnrD8ahjSFrwE5FOpP+ ajJJjk4aXvcRXPRa7ZJsFbzSRJwIwykrRE+8a9ZfuVnRhNFJXIJSTVENUKvD6Jn9PUmVhbmcfFuld 6Hj50nKVX/Y7thNMlwC+sVJhemTmYKF2eQR7lvWTJXtDaNmEa68MDf3dbOVNMRmROWhuCl7egeOHg iS2O3CDO2R24+DuvGnmVruUOrF0fLEGXkYNDB7bV8zuFDgEEe/um0IS3cv5ZYLUYqp9/ig+ytgMAD ViJtobTQRtJS4OwiIoIgjE4y4cwoyL8tj0RxEkoudxiPy6cvYisq7sTIqGIUOGtXiGXdt3lBeUvPZ Io7M0XbfyrkQMDA==; Received: from ch-demo-asa.virtuozzo.com ([130.117.225.8] helo=f0.sw.ru) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1xPKRj-00BceL-1V; Fri, 06 Nov 2026 15:01:39 +0100 From: Konstantin Khorenko Date: Fri, 06 Nov 2026 15:01:34 +0100 MIME-Version: 1.0 Message-Id: <20261106-b4-prep-khorenko-vstor-153679-mbind-ve-v2-3-6327b23a2d93@virtuozzo.com> References: <20261106-b4-prep-khorenko-vstor-153679-mbind-ve-v2-0-6327b23a2d93@virtuozzo.com> In-Reply-To: <20261106-b4-prep-khorenko-vstor-153679-mbind-ve-v2-0-6327b23a2d93@virtuozzo.com> To: Pavel Tikhomirov , Vasileios Almpanis X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1100; i=khorenko@virtuozzo.com; h=from:subject:message-id; bh=6TmQkpjnBIaU4+g4x5B3mUfCMhzPmMBZds0QPr1+2mY=; b=owEBbQKS/ZANAwAKAVGWCkf5YVwqAcsmYgBq7d3FbnESGRM6yDkpvMdvDD2ex3V6Dim1xlpMV BVt/82R1b+JAjMEAAEKAB0WIQRWD23IPcXT0GO9CCxRlgpH+WFcKgUCau3dxQAKCRBRlgpH+WFc KmSPEAC9bJBiFTPgDdsXjd42rMvCHZNfNm55NtRvTlo2RfuE2agxUugYYMmyh9l4WJC7rsW8+9L tCvVaoUVAZv//uDh3/ySlEAIklAe/CLTvO1uzEyFEzmmoIAlx+2a1tH0/ieVG5WkGNwphxWWWa5 3hVNknyxY50bNGezZepUiOzR5BawJjf1vP6NBX8OD6FAEeaAdd7utaeSll6W+q9JbM1JmZs8rZm jA1yE6YJicEZl0A9iJtVkRZr8Oks/jipXiq8QMMIc0Pw0AyStGt7JcEY52R0F5XWYaOe9yNB9nn 5ADwyBnlybwQi0NvwZYylCw9bRUyvLhTeEu0pFkXM/wwBPIPOrrgpBI0A3TUXb2THwCmuZwmVwz 3YL8AOdQeWTmkzQXSd2uJxy8D5zH7C2i5BDBMfmurgRe/zf3lBvOS/nNvxczIJ5EoNRAfFnsDhJ 83l5Stf/x2YrBEkCGsl54pWnJotNG2w3Cu1NTdArEhebh0F05CNQGtrMEA6p248yWdT7YouiFE3 QOmMALgaQZuxeCmCKbO77vI5nbKo627yb24gJnu1hKpBC2cj9ipmn/6CwjQGhywaCrPz+g5L7AW ldsNZ6nvLWVFedHrCgT5v7+dT4y6DQYTTfvV+lEzTAJSuPXxQ8EPjtc1vA7heEJ7ih4bCy6CsOf nVoGQ3XTDe20/Mw== X-Developer-Key: i=khorenko@virtuozzo.com; a=openpgp; fpr=560F6DC83DC5D3D063BD082C51960A47F9615C2A X-OZ-Fwd: true Cc: devel@openvz.org Subject: [Devel] [PATCH hci-8.1 v2 3/4] shmem: reject the mpol= mount option in VE X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org 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 --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index f8cea7e5de88d..8862723003fb0 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -4378,7 +4378,7 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param) ctx->seen |= SHMEM_SEEN_HUGE; break; case Opt_mpol: - if (IS_ENABLED(CONFIG_NUMA)) { + if (IS_ENABLED(CONFIG_NUMA) && ve_is_super(get_exec_env())) { mpol_put(ctx->mpol); ctx->mpol = NULL; if (mpol_parse_str(param->string, &ctx->mpol)) -- 2.43.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel