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Tsirkin" Subject: [PATCH v5 4/4] vhost-user: refactor send_resp code Date: Wed, 2 Aug 2023 11:08:24 +0200 Message-Id: <20230802090824.91688-5-aesteve@redhat.com> In-Reply-To: <20230802090824.91688-1-aesteve@redhat.com> References: <20230802090824.91688-1-aesteve@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=aesteve@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H4=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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Refactor code to send response message so that all common parts both for the common REPLY_ACK case, and other data responses, can call it and avoid code repetition. Signed-off-by: Albert Esteve --- hw/virtio/vhost-user.c | 36 +++++++++--------------------------- 1 file changed, 9 insertions(+), 27 deletions(-) diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 104a56a48d..28fa0ace42 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -1632,29 +1632,23 @@ vhost_user_backend_handle_shared_object_remove(VhostUserShared *object) return virtio_remove_resource(&uuid); } -static bool -vhost_user_backend_send_dmabuf_fd(QIOChannel *ioc, VhostUserHeader *hdr, - VhostUserPayload *payload) +static bool vhost_user_send_resp(QIOChannel *ioc, VhostUserHeader *hdr, + VhostUserPayload *payload) { Error *local_err = NULL; - struct iovec iov[2]; + struct iovec iov[] = { + { .iov_base = hdr, .iov_len = VHOST_USER_HDR_SIZE }, + { .iov_base = payload, .iov_len = hdr->size }, + }; - if (hdr->flags & VHOST_USER_NEED_REPLY_MASK) { - hdr->flags &= ~VHOST_USER_NEED_REPLY_MASK; - } + hdr->flags &= ~VHOST_USER_NEED_REPLY_MASK; hdr->flags |= VHOST_USER_REPLY_MASK; - hdr->size = sizeof(payload->u64); - - iov[0].iov_base = hdr; - iov[0].iov_len = VHOST_USER_HDR_SIZE; - iov[1].iov_base = payload; - iov[1].iov_len = hdr->size; - if (qio_channel_writev_all(ioc, iov, ARRAY_SIZE(iov), &local_err)) { error_report_err(local_err); return false; } + return true; } @@ -1834,22 +1828,10 @@ static gboolean backend_read(QIOChannel *ioc, GIOCondition condition, * directly in their request handlers. */ if (hdr.flags & VHOST_USER_NEED_REPLY_MASK) { - struct iovec iovec[2]; - - - hdr.flags &= ~VHOST_USER_NEED_REPLY_MASK; - hdr.flags |= VHOST_USER_REPLY_MASK; - payload.u64 = !!ret; hdr.size = sizeof(payload.u64); - iovec[0].iov_base = &hdr; - iovec[0].iov_len = VHOST_USER_HDR_SIZE; - iovec[1].iov_base = &payload; - iovec[1].iov_len = hdr.size; - - if (qio_channel_writev_all(ioc, iovec, ARRAY_SIZE(iovec), &local_err)) { - error_report_err(local_err); + if (!vhost_user_send_resp(ioc, &hdr, &payload)) { goto err; } }