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bh=UHLGpi1rVoXagqCHAByg9QF6iRSu84rymFCriCx8HmA=; b=KWgbKVfQlrwCeS1kZ3U4f33MnuFKpI7PuP3v/bP529K8KxdWssyvakDguUxtrL5smfKHyK HYI+/AudU/nBIh1nr13WZTIrgI4hnFHkbmd8Z0/O051yP4Zh6d8GDzFKZ6l2qNu4jstQfw 59tsjHRwnkqmk7VBU5LA8YD2kotnaNc= X-MC-Unique: ESk-HH-0NhWX8-NB7pXC3A-1 From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 2/3] virtio-balloon: fix free page hinting check on unrealize Date: Mon, 18 May 2020 10:37:03 +0200 Message-Id: <20200518083704.52646-3-david@redhat.com> In-Reply-To: <20200518083704.52646-1-david@redhat.com> References: <20200518083704.52646-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; envelope-from=david@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/17 23:32:08 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Wei Wang , "Michael S . Tsirkin" , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Alexander Duyck , David Hildenbrand Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Checking against guest features is wrong. We allocated data structures based on host features. We can rely on "free_page_bh" as an indicator whether to un-do stuff instead. Fixes: c13c4153f76d ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT") Cc: Wei Wang Cc: Michael S. Tsirkin Cc: Philippe Mathieu-Daud=C3=A9 Cc: Alexander Duyck Signed-off-by: David Hildenbrand Reviewed-by: Alexander Duyck Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/virtio/virtio-balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index dc3b1067ab..a4fcf2d777 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -818,7 +818,7 @@ static void virtio_balloon_device_unrealize(DeviceState= *dev) VirtIODevice *vdev =3D VIRTIO_DEVICE(dev); VirtIOBalloon *s =3D VIRTIO_BALLOON(dev); =20 - if (virtio_balloon_free_page_support(s)) { + if (s->free_page_bh) { qemu_bh_delete(s->free_page_bh); virtio_balloon_free_page_stop(s); precopy_remove_notifier(&s->free_page_report_notify); --=20 2.25.4