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Tsirkin" , Jason Wang , Stefan Hajnoczi , Stefano Garzarella , Germano Veit Michel , Raphael Norwitz Subject: [PATCH v1 13/15] libvhost-user: Factor out vq usability check Date: Fri, 2 Feb 2024 22:53:30 +0100 Message-ID: <20240202215332.118728-14-david@redhat.com> In-Reply-To: <20240202215332.118728-1-david@redhat.com> References: <20240202215332.118728-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 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=170.10.133.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.276, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1706910968274100005 Content-Type: text/plain; charset="utf-8" Let's factor it out to prepare for further changes. Signed-off-by: David Hildenbrand Reviewed-by: Raphael Norwitz --- subprojects/libvhost-user/libvhost-user.c | 24 +++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvho= st-user/libvhost-user.c index 7d8293dc84..febeb2eb89 100644 --- a/subprojects/libvhost-user/libvhost-user.c +++ b/subprojects/libvhost-user/libvhost-user.c @@ -283,6 +283,12 @@ vu_remove_all_mem_regs(VuDev *dev) dev->nregions =3D 0; } =20 +static bool +vu_is_vq_usable(VuDev *dev, VuVirtq *vq) +{ + return likely(!dev->broken) && likely(vq->vring.avail); +} + static size_t get_fd_pagesize(int fd) { @@ -2378,8 +2384,7 @@ vu_queue_get_avail_bytes(VuDev *dev, VuVirtq *vq, uns= igned int *in_bytes, idx =3D vq->last_avail_idx; =20 total_bufs =3D in_total =3D out_total =3D 0; - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { goto done; } =20 @@ -2494,8 +2499,7 @@ vu_queue_avail_bytes(VuDev *dev, VuVirtq *vq, unsigne= d int in_bytes, bool vu_queue_empty(VuDev *dev, VuVirtq *vq) { - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { return true; } =20 @@ -2534,8 +2538,7 @@ vring_notify(VuDev *dev, VuVirtq *vq) =20 static void _vu_queue_notify(VuDev *dev, VuVirtq *vq, bool sync) { - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { return; } =20 @@ -2860,8 +2863,7 @@ vu_queue_pop(VuDev *dev, VuVirtq *vq, size_t sz) unsigned int head; VuVirtqElement *elem; =20 - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { return NULL; } =20 @@ -3018,8 +3020,7 @@ vu_queue_fill(VuDev *dev, VuVirtq *vq, { struct vring_used_elem uelem; =20 - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { return; } =20 @@ -3048,8 +3049,7 @@ vu_queue_flush(VuDev *dev, VuVirtq *vq, unsigned int = count) { uint16_t old, new; =20 - if (unlikely(dev->broken) || - unlikely(!vq->vring.avail)) { + if (!vu_is_vq_usable(dev, vq)) { return; } =20 --=20 2.43.0