From nobody Sun Feb 8 17:21:41 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1550880409599120.21968712511637; Fri, 22 Feb 2019 16:06:49 -0800 (PST) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D5E6937E8F; Sat, 23 Feb 2019 00:06:47 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9B9AE6017E; Sat, 23 Feb 2019 00:06:47 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 59B02181A00A; Sat, 23 Feb 2019 00:06:47 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id x1N06jax001700 for ; Fri, 22 Feb 2019 19:06:45 -0500 Received: by smtp.corp.redhat.com (Postfix) id 336D160BF4; Sat, 23 Feb 2019 00:06:45 +0000 (UTC) Received: from probe.bos.redhat.com (dhcp-17-206.bos.redhat.com [10.18.17.206]) by smtp.corp.redhat.com (Postfix) with ESMTP id 61A8E60BE0; Sat, 23 Feb 2019 00:06:31 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Fri, 22 Feb 2019 19:06:09 -0500 Message-Id: <20190223000614.13894-6-jsnow@redhat.com> In-Reply-To: <20190223000614.13894-1-jsnow@redhat.com> References: <20190223000614.13894-1-jsnow@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: Kevin Wolf , Fam Zheng , vsementsov@virtuozzo.com, Juan Quintela , libvir-list@redhat.com, John Snow , Max Reitz , Stefan Hajnoczi , "Dr. David Alan Gilbert" Subject: [libvirt] [PATCH v3 05/10] nbd: change error checking order for bitmaps X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Sat, 23 Feb 2019 00:06:48 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Check that the bitmap is not in use prior to it checking if it is not enabled/recording guest writes. The bitmap being busy was likely at the behest of the user, so this error has a greater chance of being understood by the user. Signed-off-by: John Snow Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy --- nbd/server.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/nbd/server.c b/nbd/server.c index 0910d09a6d..de21c64ce3 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -1510,6 +1510,11 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint= 64_t dev_offset, goto fail; } =20 + if (bdrv_dirty_bitmap_user_locked(bm)) { + error_setg(errp, "Bitmap '%s' is in use", bitmap); + goto fail; + } + if ((nbdflags & NBD_FLAG_READ_ONLY) && bdrv_is_writable(bs) && bdrv_dirty_bitmap_enabled(bm)) { error_setg(errp, @@ -1518,11 +1523,6 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint= 64_t dev_offset, goto fail; } =20 - if (bdrv_dirty_bitmap_user_locked(bm)) { - error_setg(errp, "Bitmap '%s' is in use", bitmap); - goto fail; - } - bdrv_dirty_bitmap_set_qmp_locked(bm, true); exp->export_bitmap =3D bm; exp->export_bitmap_context =3D g_strdup_printf("qemu:dirty-bitmap:= %s", --=20 2.17.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list