From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.openvz.org (mail.openvz.org [69.168.225.77]) by lore.virtuozzo.com (Postfix) with ESMTPS id 31EB78017D for ; Mon, 9 Nov 2026 19:37:32 +0000 (UTC) Received: from mail.openvz.org (localhost [127.0.0.1]) by mail.openvz.org (8.14.4/8.14.4) with ESMTP id 6A9JaIEI003192; Mon, 9 Nov 2026 22:36:19 +0300 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.openvz.org 6A9JaIEI003192 Authentication-Results: mail.openvz.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=virtuozzo.com header.i=@virtuozzo.com header.b="pgqEAZnT" Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) by mail.openvz.org (8.14.4/8.14.4) with ESMTP id 6A9Ja9Nq003156 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=FAIL) for ; Mon, 9 Nov 2026 22:36:09 +0300 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.openvz.org 6A9Ja9Nq003156 Received: by mail-wm1-f72.google.com with SMTP id 5b1f17b1804b1-4a2063be141so11942765e9.1 for ; Mon, 09 Nov 2026 11:36:09 -0800 (PST) X-Forwarded-Encrypted: i=2; AL+hErGfdV6BtQMUKe4xoMDbNUAU3CCS+sVPtc7lCF1NpjW7LADVGUNBqgHHWQKm1q98L6Ikd8XPjA==@openvz.org X-Gm-Message-State: APuU4Z/K+amO1lGvAgTKqRyV52EknQqvF0zXNupMcmbKGceo31ePMkAc c/H1ky5GkFuLoVYJs0ItSP6FNHYGNvBKZH8yaKFEwXy4CZYMgSS+HmCOo9OmYcOP0OyCAQydQqz saBgHgKRs6mMvGtMhikp8bLyP0IvrlZMUuJxSlwAT8gAuxLtH4bhLOw== X-Gm-Gg: AYBFou2IQJkLwupjvY0trOG2faCQBDS9cGpk7IHTh7WPIvHzLx9RRPKuDDC6RLM1fKP HFrvCRyrfj8vvebIFmnB1kB7PUy5uG47qXO8GPEcNZlps/kmA6fPFfnK8CekAaIrbn5tW9jRof7 i4AourcCg/+LM0/oZ560nF/OkT9n3mwMVujhGqYSVqLkjxrOV0JfLEwvnikc6L1oryTN1j/78jr FkYwEo1518n/cg/qZD/OU0GO4UBfLDzWBs+UzIaGz9pw5cp6n4Np/5VBPdsY+SPomhzTuSTx2LI yxdtLLjEuw797K9k7Ay6nbpTu6sXVQb8TbAv3egUjMIDlS+QfL8toFvb7CP1NxUbKcd5wRmsMJM vKhCHnD8zGbYkdcE8GexjQAwAFrtI X-Received: by 2002:a05:600c:4695:b0:4b7:6c16:7b43 with SMTP id 5b1f17b1804b1-4ba023413bfmr4697275e9.10.1794252968836; Mon, 09 Nov 2026 11:36:08 -0800 (PST) X-Received: by 2002:a05:600c:4695:b0:4b7:6c16:7b43 with SMTP id 5b1f17b1804b1-4ba023413bfmr4697055e9.10.1794252968441; Mon, 09 Nov 2026 11:36:08 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1794252968; cv=none; d=google.com; s=arc-20260327; b=Q6SziBQON1Q8G/FbBW7eJPGAhi7GOlQrEF9YqPulfDTvKSpoBr3uYe1o/ohA3OTDD/ /IRpIrSzqb/2IvE9UAY+7aKEzeT85u7t9VRF64iO2Tpe03k5r6q/5bj6tB/C0JZdD9Qw ynI+/fzg02VD0E3yNGgl0Fl8yDyxthLsf5OermsFYKcMPk+YivMsdAOWRIOBOoiNx7tl hsdXTmUq2RSHr2Ws8vVSEzobW5flBnP2sKUTDFvzuuQM+w4pIzL03KZolEUqbL9NMKPd +jfuIXgCRsbMtYKfiv3yT0oiBk4SBbSOAPQ64W7VuWxgzDxoogLvrAf0Zpt09AwGl0wu kiyg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20260327; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:dkim-signature; bh=5LdLnAgdnqX7I3+697uDpZp65KOhtYlTYg8eZRV/OZY=; fh=5hQRK+XZF8m8FADH0g5yAiDkSoTAVGTSxnnvVVATGZQ=; b=XFk+k8ILMfap3u9rsMcD7fPgj1xU3fT+cnaHCyF54EJ2ksLfal4sCeb9qwPui/7X2U VZlvrkUQAknQGKZQekyRV5eH3E7S/U+e38Mkx9RKF+CppyVvjEB6Pk6Hm+2peoBHzT00 ysbI2Wwc89sRcw9i2Rt6aShLc8OatzfRw5GW7McU+7UHzVLtXP2tBjVF9P0EMXp/8MI4 6O7ZAjKmtyDVBTnGev9X6hE3MVGre/0umPkGXhdYKuKQsv5PKzFLCC9N02G+yM+lNHEM KZibeX26ZR0cjCtb/25nGrq7bZkTH68RHQhOKgY9ci6iHCf/ZnFDhSfqXxivohy36oHK iNcA==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b=pgqEAZnT; 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 Received: from relay.virtuozzo.com (relay.virtuozzo.com. [130.117.225.111]) by mx.google.com with ESMTPS id 5b1f17b1804b1-4ba01fdbb7fsi7098545e9.0.2026.11.09.11.36.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2026 11:36:08 -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=pgqEAZnT; 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=Message-Id:Content-Type:MIME-Version:Subject:Date :From; bh=5LdLnAgdnqX7I3+697uDpZp65KOhtYlTYg8eZRV/OZY=; b=pgqEAZnTBNvUFegWJTM CHb0MRHD1TFO7JOaGmB6nMe9HiVmHIOuOl0UejW6r2Jy/wMb5RZidjOnTbQDGvKE4WBjdKxsOa8OS pK/ZsoLRcg6ROC6V42BK1c5VNPo0gFyHAQ4IZ89grgNwFkWH+5uXZgCgDKc/n+KbNvPlk9xsLrASh PRsoXg8sa2zga8XNrkvUyOhzbVZ/Ohv63aBlOgvwAu177/6sDNAxo4ur6DQ7PbISam1kdKhQfA/cE BKeTMEoHjTlvDNWMKfBqdxC+dAcVVJONIWfaSEambsGjadSfP84rpA6fxpFiCujX6x8/FV9U0R+RT t9w6Ll/Azsv1MSA==; 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 1xQV5v-00CGp3-15; Mon, 09 Nov 2026 20:35:59 +0100 From: Vladimir Riabchun Date: Mon, 09 Nov 2026 20:36:01 +0100 MIME-Version: 1.0 Message-Id: <20261109-ovl-use-orig-ve-v4-3-88e65484dc5b@virtuozzo.com> References: <20261109-ovl-use-orig-ve-v4-0-88e65484dc5b@virtuozzo.com> In-Reply-To: <20261109-ovl-use-orig-ve-v4-0-88e65484dc5b@virtuozzo.com> To: ptikhomirov@virtuozzo.com, Konstantin Khorenko X-Mailer: b4 0.16.0 X-OZ-Fwd: true Cc: devel@openvz.org Subject: [Devel] [PATCH hci-8.1 v4 3/5] ve: Defer ve context drop until ve is completely destroyed 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 may have a case, when VE is dead, but there are some users of it, overlayfs superblock for example. This user may want to use VE creds, so we need to keep ve->init_cred alive. Drop creds in ve_destroy. We need to drop ve_nsproxy early because ploop waits for refcount going to zero, dropping ve_nsproxy in destroy causes CT suspend/resume hangs. https://virtuozzo.atlassian.net/browse/VSTOR-142405 Signed-off-by: Vladimir Riabchun --- kernel/ve/ve.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/ve/ve.c b/kernel/ve/ve.c index b3988a8d590f..1e0c092f080e 100644 --- a/kernel/ve/ve.c +++ b/kernel/ve/ve.c @@ -378,7 +378,10 @@ static void ve_drop_context(struct ve_struct *ve) rcu_assign_pointer(ve->ve_nsproxy, NULL); synchronize_rcu(); put_nsproxy(ve_nsproxy); +} +static void ve_drop_cred(struct ve_struct *ve) +{ put_cred(ve->init_cred); ve->init_cred = NULL; } @@ -929,6 +932,7 @@ static void ve_destroy(struct cgroup_subsys_state *css) { struct ve_struct *ve = css_to_ve(css); + ve_drop_cred(ve); free_ve_devmnts(ve); kmapset_unlink(&ve->sysfs_perms_key, &sysfs_ve_perms_set); -- 2.52.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel