diff options
| -rw-r--r-- | block/file-win32.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/block/file-win32.c b/block/file-win32.c index ab69bd811a..e2900c3a51 100644 --- a/block/file-win32.c +++ b/block/file-win32.c @@ -299,6 +299,11 @@ static QemuOptsList raw_runtime_opts = { .type = QEMU_OPT_STRING, .help = "host AIO implementation (threads, native)", }, + { + .name = "locking", + .type = QEMU_OPT_STRING, + .help = "file locking mode (on/off/auto, default: auto)", + }, { /* end of list */ } }, }; @@ -333,6 +338,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, Error *local_err = NULL; const char *filename; bool use_aio; + OnOffAuto locking; int ret; s->type = FTYPE_FILE; @@ -343,10 +349,24 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - if (qdict_get_try_bool(options, "locking", false)) { + locking = qapi_enum_parse(&OnOffAuto_lookup, + qemu_opt_get(opts, "locking"), + ON_OFF_AUTO_AUTO, &local_err); + if (local_err) { + error_propagate(errp, local_err); + ret = -EINVAL; + goto fail; + } + switch (locking) { + case ON_OFF_AUTO_ON: error_setg(errp, "locking=on is not supported on Windows"); ret = -EINVAL; goto fail; + case ON_OFF_AUTO_OFF: + case ON_OFF_AUTO_AUTO: + break; + default: + g_assert_not_reached(); } filename = qemu_opt_get(opts, "filename"); |