From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MIME_BASE64_TEXT,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D28C8C433DF for ; Wed, 22 Jul 2020 13:03:46 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9CA9E20729 for ; Wed, 22 Jul 2020 13:03:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ejaobmaA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9CA9E20729 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jyEPR-0001Gw-UT for qemu-devel@archiver.kernel.org; Wed, 22 Jul 2020 09:03:45 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59904) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jyEOi-0008SS-BP for qemu-devel@nongnu.org; Wed, 22 Jul 2020 09:03:00 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:22794 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jyEOe-00063D-NF for qemu-devel@nongnu.org; Wed, 22 Jul 2020 09:03:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595422975; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JtaU6XyqFP8NrLJA88HkSXJMVAjAdcRT0OOcexGICOs=; b=ejaobmaAlIKEmzGAihgNplVWwZK2PX6s/rf7/rqevWlmNvpP5q+lx7V0zxoKM0/2Jv3tay 1FohM9EdPSm6FtXKWBvip8Ml9C5ZJ6Da6Hg2vgAXntuq6g97Nz0scwi7FJq58G5sAikBK3 5TBb+gX6PmUAwFE6sSVlPvzUhry+AoA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-123-G4rBlAc3O-CIqbpyd23T0g-1; Wed, 22 Jul 2020 09:02:39 -0400 X-MC-Unique: G4rBlAc3O-CIqbpyd23T0g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 480B559; Wed, 22 Jul 2020 13:02:38 +0000 (UTC) Received: from localhost (ovpn-114-42.ams2.redhat.com [10.36.114.42]) by smtp.corp.redhat.com (Postfix) with ESMTP id B29EC619B5; Wed, 22 Jul 2020 13:02:30 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH for-5.1 3/3] virtiofsd: probe unshare(CLONE_FS) and print an error Date: Wed, 22 Jul 2020 14:02:06 +0100 Message-Id: <20200722130206.224898-4-stefanha@redhat.com> In-Reply-To: <20200722130206.224898-1-stefanha@redhat.com> References: <20200722130206.224898-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 Received-SPF: pass client-ip=207.211.31.81; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/21 23:34:34 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vromanso@redhat.com, Misono Tomohiro , "Dr. David Alan Gilbert" , virtio-fs@redhat.com, Stefan Hajnoczi , rmohr@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" QW4gYXNzZXJ0aW9uIGZhaWx1cmUgaXMgcmFpc2VkIGR1cmluZyByZXF1ZXN0IHByb2Nlc3Npbmcg aWYKdW5zaGFyZShDTE9ORV9GUykgZmFpbHMuIEltcGxlbWVudCBhIHByb2JlIGF0IHN0YXJ0dXAg c28gdGhlIHByb2JsZW0gY2FuCmJlIGRldGVjdGVkIHJpZ2h0IGF3YXkuCgpVbmZvcnR1bmF0ZWx5 IERvY2tlci9Nb2J5IGRvZXMgbm90IGluY2x1ZGUgdW5zaGFyZSBpbiB0aGUgc2VjY29tcC5qc29u Cmxpc3QgdW5sZXNzIENBUF9TWVNfQURNSU4gaXMgZ2l2ZW4uIE90aGVyIHNlY2NvbXAuanNvbiBs aXN0cyBhbHdheXMKaW5jbHVkZSB1bnNoYXJlIChlLmcuIHBvZG1hbiBpcyB1bmFmZmVjdGVkKToK aHR0cHM6Ly9yYXcuZ2l0aHVidXNlcmNvbnRlbnQuY29tL3NlY2NvbXAvY29udGFpbmVycy1nb2xh bmcvbWFzdGVyL3NlY2NvbXAuanNvbgoKVXNlICJkb2NrZXIgcnVuIC0tc2VjdXJpdHktb3B0IHNl Y2NvbXA9cGF0aC90by9zZWNjb21wLmpzb24gLi4uIiBpZiB0aGUKZGVmYXVsdCBzZWNjb21wLmpz b24gaXMgbWlzc2luZyB1bnNoYXJlLgoKQ2M6IE1pc29ubyBUb21vaGlybyA8bWlzb25vLnRvbW9o aXJvQGpwLmZ1aml0c3UuY29tPgpTaWduZWQtb2ZmLWJ5OiBTdGVmYW4gSGFqbm9jemkgPHN0ZWZh bmhhQHJlZGhhdC5jb20+Ci0tLQogdG9vbHMvdmlydGlvZnNkL2Z1c2VfdmlydGlvLmMgfCAxMyAr KysrKysrKysrKysrCiAxIGZpbGUgY2hhbmdlZCwgMTMgaW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdp dCBhL3Rvb2xzL3ZpcnRpb2ZzZC9mdXNlX3ZpcnRpby5jIGIvdG9vbHMvdmlydGlvZnNkL2Z1c2Vf dmlydGlvLmMKaW5kZXggM2I2ZDE2YTA0MS4uZWJlYjM1MjUxNCAxMDA2NDQKLS0tIGEvdG9vbHMv dmlydGlvZnNkL2Z1c2VfdmlydGlvLmMKKysrIGIvdG9vbHMvdmlydGlvZnNkL2Z1c2VfdmlydGlv LmMKQEAgLTk0OSw2ICs5NDksMTkgQEAgaW50IHZpcnRpb19zZXNzaW9uX21vdW50KHN0cnVjdCBm dXNlX3Nlc3Npb24gKnNlKQogewogICAgIGludCByZXQ7CiAKKyAgICAvKgorICAgICAqIFRlc3Qg dGhhdCB1bnNoYXJlKENMT05FX0ZTKSB3b3Jrcy4gZnZfcXVldWVfd29ya2VyKCkgd2lsbCBuZWVk IGl0LiBJdCdzCisgICAgICogYW4gdW5wcml2aWxlZ2VkIHN5c3RlbSBjYWxsIGJ1dCBzb21lIERv Y2tlci9Nb2J5IHZlcnNpb25zIGFyZSBrbm93biB0bworICAgICAqIHJlamVjdCBpdCB2aWEgc2Vj Y29tcCB3aGVuIENBUF9TWVNfQURNSU4gaXMgbm90IGdpdmVuLgorICAgICAqLworICAgIHJldCA9 IHVuc2hhcmUoQ0xPTkVfRlMpOworICAgIGlmIChyZXQgPT0gLTEgJiYgZXJybm8gPT0gRVBFUk0p IHsKKyAgICAgICAgZnVzZV9sb2coRlVTRV9MT0dfRVJSLCAidW5zaGFyZShDTE9ORV9GUykgZmFp bGVkIHdpdGggRVBFUk0uIElmICIKKyAgICAgICAgICAgICAgICAicnVubmluZyBpbiBhIGNvbnRh aW5lciBwbGVhc2UgY2hlY2sgdGhhdCB0aGUgY29udGFpbmVyICIKKyAgICAgICAgICAgICAgICAi cnVudGltZSBzZWNjb21wIHBvbGljeSBhbGxvd3MgdW5zaGFyZS5cbiIpOworICAgICAgICByZXR1 cm4gLTE7CisgICAgfQorCiAgICAgcmV0ID0gZnZfY3JlYXRlX2xpc3Rlbl9zb2NrZXQoc2UpOwog ICAgIGlmIChyZXQgPCAwKSB7CiAgICAgICAgIHJldHVybiByZXQ7Ci0tIAoyLjI2LjIKCg==