diff options
| -rw-r--r-- | block/sheepdog.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/block/sheepdog.c b/block/sheepdog.c index a2679c2..60a4853 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -545,6 +545,7 @@ static SheepdogAIOCB *sd_aio_setup(BlockDriverState *bs, QEMUIOVector *qiov, return acb; } +/* Return -EIO in case of error, file descriptor on success */ static int connect_to_sdog(BDRVSheepdogState *s, Error **errp) { int fd; @@ -564,11 +565,14 @@ static int connect_to_sdog(BDRVSheepdogState *s, Error **errp) if (fd >= 0) { qemu_set_nonblock(fd); + } else { + fd = -EIO; } return fd; } +/* Return 0 on success and -errno in case of error */ static coroutine_fn int send_co_req(int sockfd, SheepdogReq *hdr, void *data, unsigned int *wlen) { @@ -577,11 +581,13 @@ static coroutine_fn int send_co_req(int sockfd, SheepdogReq *hdr, void *data, ret = qemu_co_send(sockfd, hdr, sizeof(*hdr)); if (ret != sizeof(*hdr)) { error_report("failed to send a req, %s", strerror(errno)); + ret = -socket_error(); return ret; } ret = qemu_co_send(sockfd, data, *wlen); if (ret != *wlen) { + ret = -socket_error(); error_report("failed to send a req, %s", strerror(errno)); } @@ -656,6 +662,11 @@ out: srco->finished = true; } +/* + * Send the request to the sheep in a synchronous manner. + * + * Return 0 on success, -errno in case of error. + */ static int do_req(int sockfd, AioContext *aio_context, SheepdogReq *hdr, void *data, unsigned int *wlen, unsigned int *rlen) { |