diff options
Diffstat (limited to 'qapi/block-core.json')
| -rw-r--r-- | qapi/block-core.json | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json index a5ab38db99..e6edd641f1 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -5178,10 +5178,11 @@ # @off: no preallocation # @metadata: preallocate only for metadata # @falloc: like @full preallocation but allocate disk space by -# posix_fallocate() rather than writing zeros. -# @full: preallocate all data by writing zeros to device to ensure disk -# space is really available. @full preallocation also sets up -# metadata correctly. +# posix_fallocate() rather than writing data. +# @full: preallocate all data by writing it to the device to ensure +# disk space is really available. This data may or may not be +# zero, depending on the image format and storage. +# @full preallocation also sets up metadata correctly. # # Since: 2.2 ## |