Signed-off-by: Yonggang Luo <luoyongg...@gmail.com> --- block/file-win32.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/block/file-win32.c b/block/file-win32.c index ab69bd811a..14e5f5c3b5 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 */ } }, }; @@ -334,6 +339,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, const char *filename; bool use_aio; int ret; + OnOffAuto locking; s->type = FTYPE_FILE; @@ -342,11 +348,24 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, ret = -EINVAL; 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"); -- 2.28.0.windows.1