This patch prepares for the subsequent patches. Signed-off-by: Hu Tao <hu...@cn.fujitsu.com> --- block/qcow2.c | 8 ++++---- qapi-schema.json | 12 ++++++++++++ 2 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c index 99a1ad1..30e36bc 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1452,7 +1452,7 @@ static int preallocate(BlockDriverState *bs) static int qcow2_create2(const char *filename, int64_t total_size, const char *backing_file, const char *backing_format, - int flags, size_t cluster_size, int prealloc, + int flags, size_t cluster_size, PreallocMode prealloc, QEMUOptionParameter *options, int version, Error **errp) { @@ -1622,7 +1622,7 @@ static int qcow2_create(const char *filename, QEMUOptionParameter *options, uint64_t sectors = 0; int flags = 0; size_t cluster_size = DEFAULT_CLUSTER_SIZE; - int prealloc = 0; + PreallocMode prealloc = PREALLOC_MODE_OFF; int version = 3; Error *local_err = NULL; int ret; @@ -1643,9 +1643,9 @@ static int qcow2_create(const char *filename, QEMUOptionParameter *options, } } else if (!strcmp(options->name, BLOCK_OPT_PREALLOC)) { if (!options->value.s || !strcmp(options->value.s, "off")) { - prealloc = 0; + prealloc = PREALLOC_MODE_OFF; } else if (!strcmp(options->value.s, "metadata")) { - prealloc = 1; + prealloc = PREALLOC_MODE_METADATA; } else { error_setg(errp, "Invalid preallocation mode: '%s'", options->value.s); diff --git a/qapi-schema.json b/qapi-schema.json index 05ced9d..f86068c 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -4419,3 +4419,15 @@ # Since: 1.7 ## { 'command': 'blockdev-add', 'data': { 'options': 'BlockdevOptions' } } + +## +# @PreallocMode +# +# Preallocation mode of QEMU image file +# +# @off: no preallocation +# @metadata: preallocate only for metadata +# @full: preallocate all data, including metadata +## +{ 'enum': 'PreallocMode', + 'data': [ 'off', 'metadata', 'full' ] } -- 1.8.0