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envelope-from=sgarzare@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=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The way the virtio-blk driver is implemented in libblkio, it's much easier to use blkio_set_int() instead of blkio_get_int() and have it fail right away to see if `fd` is supported by the transport. See https://gitlab.com/libblkio/libblkio/-/merge_requests/208 Signed-off-by: Stefano Garzarella --- block/blkio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/block/blkio.c b/block/blkio.c index ca1149042a..719b19324b 100644 --- a/block/blkio.c +++ b/block/blkio.c @@ -665,7 +665,7 @@ static int blkio_virtio_blk_common_open(BlockDriverState *bs, const char *blkio_driver = bs->drv->protocol_name; BDRVBlkioState *s = bs->opaque; bool fd_supported = false; - int fd, ret; + int ret; if (!path) { error_setg(errp, "missing 'path' option"); @@ -678,7 +678,7 @@ static int blkio_virtio_blk_common_open(BlockDriverState *bs, } if (strcmp(blkio_driver, "virtio-blk-vhost-vdpa") == 0 && - blkio_get_int(s->blkio, "fd", &fd) == 0) { + blkio_set_int(s->blkio, "fd", -1) == 0) { fd_supported = true; } @@ -688,7 +688,7 @@ static int blkio_virtio_blk_common_open(BlockDriverState *bs, * layer through the "/dev/fdset/N" special path. */ if (fd_supported) { - int open_flags; + int open_flags, fd; if (flags & BDRV_O_RDWR) { open_flags = O_RDWR;