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| author | Kevin Wolf <kwolf@redhat.com> | 2018-03-20 15:08:00 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-03-26 12:16:12 +0200 |
| commit | 61fa64871dcd823633aac129762d424a8a19e6ee (patch) | |
| tree | 91aeaca09122048e2901fbe93026018b8ddba8c9 | |
| parent | abf754fe406ecaf5b5018a6f34b2eba569352673 (diff) | |
| download | qemu-61fa64871dcd823633aac129762d424a8a19e6ee.zip qemu-61fa64871dcd823633aac129762d424a8a19e6ee.tar.gz qemu-61fa64871dcd823633aac129762d424a8a19e6ee.tar.bz2 | |
vdi: Change 'static' create option to 'preallocation' in QMP
What static=on really does is what we call metadata preallocation for
other block drivers. While we can still change the QMP interface, make
it more consistent by using 'preallocation' for VDI, too.
This doesn't implement any new functionality, so the only supported
preallocation modes are 'off' and 'metadata' for now.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
| -rw-r--r-- | block/vdi.c | 24 | ||||
| -rw-r--r-- | qapi/block-core.json | 7 |
2 files changed, 25 insertions, 6 deletions
diff --git a/block/vdi.c b/block/vdi.c index d939b03..73c059e 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -728,7 +728,7 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options, int ret = 0; uint64_t bytes = 0; uint32_t blocks; - uint32_t image_type = VDI_TYPE_DYNAMIC; + uint32_t image_type; VdiHeader header; size_t i; size_t bmap_size; @@ -744,9 +744,22 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options, /* Validate options and set default values */ bytes = vdi_opts->size; - if (vdi_opts->q_static) { + + if (!vdi_opts->has_preallocation) { + vdi_opts->preallocation = PREALLOC_MODE_OFF; + } + switch (vdi_opts->preallocation) { + case PREALLOC_MODE_OFF: + image_type = VDI_TYPE_DYNAMIC; + break; + case PREALLOC_MODE_METADATA: image_type = VDI_TYPE_STATIC; + break; + default: + error_setg(errp, "Preallocation mode not supported for vdi"); + return -EINVAL; } + #ifndef CONFIG_VDI_STATIC_IMAGE if (image_type == VDI_TYPE_STATIC) { ret = -ENOTSUP; @@ -874,6 +887,7 @@ static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts, BlockdevCreateOptions *create_options = NULL; BlockDriverState *bs_file = NULL; uint64_t block_size = DEFAULT_CLUSTER_SIZE; + bool is_static = false; Visitor *v; Error *local_err = NULL; int ret; @@ -895,6 +909,9 @@ static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts, goto done; } #endif + if (qemu_opt_get_bool_del(opts, BLOCK_OPT_STATIC, false)) { + is_static = true; + } qdict = qemu_opts_to_qdict_filtered(opts, NULL, &vdi_create_opts, true); @@ -913,6 +930,9 @@ static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts, qdict_put_str(qdict, "driver", "vdi"); qdict_put_str(qdict, "file", bs_file->node_name); + if (is_static) { + qdict_put_str(qdict, "preallocation", "metadata"); + } /* Get the QAPI object */ v = qobject_input_visitor_new_keyval(QOBJECT(qdict)); diff --git a/qapi/block-core.json b/qapi/block-core.json index 1088ab0..c50517b 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -3943,16 +3943,15 @@ # # @file Node to create the image format on # @size Size of the virtual disk in bytes -# @static Whether to create a statically (true) or -# dynamically (false) allocated image -# (default: false, i.e. dynamic) +# @preallocation Preallocation mode for the new image (allowed values: off, +# metadata; default: off) # # Since: 2.12 ## { 'struct': 'BlockdevCreateOptionsVdi', 'data': { 'file': 'BlockdevRef', 'size': 'size', - '*static': 'bool' } } + '*preallocation': 'PreallocMode' } } ## # @BlockdevVhdxSubformat: |