diff options
Diffstat (limited to 'block/null.c')
| -rw-r--r-- | block/null.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/block/null.c b/block/null.c index 396500babd..b511010ba5 100644 --- a/block/null.c +++ b/block/null.c @@ -12,6 +12,8 @@ #include "qemu/osdep.h" #include "qapi/error.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qstring.h" #include "block/block_int.h" #define NULL_OPT_LATENCY "latency-ns" @@ -223,6 +225,20 @@ static int64_t coroutine_fn null_co_get_block_status(BlockDriverState *bs, } } +static void null_refresh_filename(BlockDriverState *bs, QDict *opts) +{ + QINCREF(opts); + qdict_del(opts, "filename"); + + if (!qdict_size(opts)) { + snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s://", + bs->drv->format_name); + } + + qdict_put(opts, "driver", qstring_from_str(bs->drv->format_name)); + bs->full_open_options = opts; +} + static BlockDriver bdrv_null_co = { .format_name = "null-co", .protocol_name = "null-co", @@ -238,6 +254,8 @@ static BlockDriver bdrv_null_co = { .bdrv_reopen_prepare = null_reopen_prepare, .bdrv_co_get_block_status = null_co_get_block_status, + + .bdrv_refresh_filename = null_refresh_filename, }; static BlockDriver bdrv_null_aio = { @@ -255,6 +273,8 @@ static BlockDriver bdrv_null_aio = { .bdrv_reopen_prepare = null_reopen_prepare, .bdrv_co_get_block_status = null_co_get_block_status, + + .bdrv_refresh_filename = null_refresh_filename, }; static void bdrv_null_init(void) |