.. option:: --aio=AIO
- Set the asynchronous I/O mode between ``threads`` (the default)
- and ``native`` (Linux only).
+ Set the asynchronous I/O mode between ``threads`` (the default),
+ ``native`` (Linux only), and ``io_uring`` (Linux 5.1+).
.. option:: --discard=DISCARD
" '[ID_OR_NAME]'\n"
" -n, --nocache disable host cache\n"
" --cache=MODE set cache mode (none, writeback, ...)\n"
-" --aio=MODE set AIO mode (native or threads)\n"
+" --aio=MODE set AIO mode (native, io_uring or threads)\n"
" --discard=MODE set discard mode (ignore, unmap)\n"
" --detect-zeroes=MODE set detect-zeroes mode (off, on, unmap)\n"
" --image-opts treat FILE as a full set of image options\n"
exit(EXIT_FAILURE);
}
seen_aio = true;
- if (!strcmp(optarg, "native")) {
- flags |= BDRV_O_NATIVE_AIO;
- } else if (!strcmp(optarg, "threads")) {
- /* this is the default */
- } else {
- error_report("invalid aio mode `%s'", optarg);
- exit(EXIT_FAILURE);
+ if (bdrv_parse_aio(optarg, &flags) < 0) {
+ error_report("Invalid aio mode '%s'", optarg);
+ exit(EXIT_FAILURE);
}
break;
case QEMU_NBD_OPT_DISCARD: