diff options
| -rw-r--r-- | docs/tools/qemu-nbd.rst | 4 | ||||
| -rw-r--r-- | qemu-nbd.c | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/docs/tools/qemu-nbd.rst b/docs/tools/qemu-nbd.rst index fe41336dc5..ee862fa0bc 100644 --- a/docs/tools/qemu-nbd.rst +++ b/docs/tools/qemu-nbd.rst @@ -136,8 +136,8 @@ driver options if ``--image-opts`` is specified. .. option:: -e, --shared=NUM Allow up to *NUM* clients to share the device (default - ``1``). Safe for readers, but for now, consistency is not - guaranteed between multiple writers. + ``1``), 0 for unlimited. Safe for readers, but for now, + consistency is not guaranteed between multiple writers. .. option:: -t, --persistent diff --git a/qemu-nbd.c b/qemu-nbd.c index 1a340ea485..b1b9430a8f 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -328,7 +328,7 @@ static void *nbd_client_thread(void *arg) static int nbd_can_accept(void) { - return state == RUNNING && nb_fds < shared; + return state == RUNNING && (shared == 0 || nb_fds < shared); } static void nbd_update_server_watch(void); @@ -707,7 +707,7 @@ int main(int argc, char **argv) break; case 'e': if (qemu_strtoi(optarg, NULL, 0, &shared) < 0 || - shared < 1) { + shared < 0) { error_report("Invalid shared device number '%s'", optarg); exit(EXIT_FAILURE); } @@ -966,7 +966,7 @@ int main(int argc, char **argv) if (socket_activation == 0) { int backlog; - if (persistent) { + if (persistent || shared == 0) { backlog = SOMAXCONN; } else { backlog = MIN(shared, SOMAXCONN); |