diff options
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/block-core.json | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json index e9364a4a29..e6edd641f1 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -4212,13 +4212,17 @@ # # @file Node to create the image format on # @size Size of the virtual disk in bytes +# @preallocation Preallocation mode for the new image +# (since: 4.2) +# (default: off; allowed values: off, metadata, falloc, full) # # Since: 2.12 ## { 'struct': 'BlockdevCreateOptionsLUKS', 'base': 'QCryptoBlockCreateOptionsLUKS', 'data': { 'file': 'BlockdevRef', - 'size': 'size' } } + 'size': 'size', + '*preallocation': 'PreallocMode' } } ## # @BlockdevCreateOptionsNfs: @@ -5174,10 +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 ## |