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[130.117.225.111]) by mx.google.com with ESMTPS id 5b1f17b1804b1-4b2a9419064si66990245e9.19.2026.11.03.12.24.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 12:24:18 -0800 (PST) Received-SPF: pass (google.com: domain of vladimir.riabchun@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=CEzOFkNg; spf=pass (google.com: domain of vladimir.riabchun@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=vladimir.riabchun@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=MIME-Version:Message-ID:Date:Subject:From: Content-Type; bh=Id0y1WOLDrRrxKGkbjIJDKMit0efQhn/axP8/b0NeN0=; b=CEzOFkNgJE7J t0FBbYwCufkkBqe6IfzYPSn5FW0YWoa30ScazxK63VewbaK94OmLRzzUiXMISJ5alZpluiABTrA3M 1rQvSgJyptRAIpNbPtfy8XjA19at/vIfgwb4ma7bxuDYQvSYpvdmGLp3Pk8nvKyEksAx2BhAeHkrK DEVunHXHEuZ0SdR2kPjfr/5KpSl05BAkhFN6/muUekH+BU/TmSaZcasCYTZM4lk3OAMkEAGZbo8kp Gr2eLiYubUyf9drUzcdDo+JH5sX+6gGOE04nS9oypAbJwqyG9qxDsNDTXLevgNpgNhP/TbZ9sWnM2 fg9z1wSKAfoCzkFJh4l5hQ==; Received: from ch-demo-asa.virtuozzo.com ([130.117.225.8] helo=192.168.1.87) by relay.virtuozzo.com with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1xOKzN-008IHM-2x; Tue, 03 Nov 2026 21:24:07 +0100 From: Vladimir Riabchun To: devel@openvz.org Date: Tue, 3 Nov 2026 21:24:07 +0100 Message-ID: <20261103202407.738340-1-vladimir.riabchun@virtuozzo.com> X-Mailer: git-send-email 2.52.0 MIME-Version: 1.0 X-OZ-Fwd: true Subject: [Devel] [PATCH RK VZ9/VZ10] kpatch: pin current livepatch module 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 We want to avoid module unload without disabling unpatch functionality. Do this by grabbing one extra reference to livepatch module. RK_BUG: VSTOR-151484 RK_CHANGELOG: Pin livepatch module to prevent unloading Signed-off-by: Vladimir Riabchun --- kernel/time/namespace.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c index e85f947d4063..bf57ce079d15 100644 --- a/kernel/time/namespace.c +++ b/kernel/time/namespace.c @@ -485,3 +485,14 @@ struct time_namespace init_time_ns = { .ns.ops = &timens_operations, .frozen_offsets = true, }; + +#include + +static void kpatch_pin_self(struct klp_object *obj) +{ + struct module *mod = container_of(obj->kobj.parent, struct klp_patch, kobj)->mod; + + __module_get(mod); + pr_warn("Livepatch module %s is pinned and cannot be unloaded\n", module_name(mod)); +} +KLP_POST_PATCH_CALLBACK(kpatch_pin_self); -- 2.52.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel