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| author | Fam Zheng <famz@redhat.com> | 2014-05-06 21:08:43 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-05-09 13:32:16 +0200 |
| commit | 85f49cad879adfb5c3cbdc47ca3c3b50eb8f40bc (patch) | |
| tree | 1600d9060ee2ffebfa8b95af4f4338aaf1896fc1 /include/block | |
| parent | ec209aca8340be1c81afe13fbe0ba135e5d3b9f4 (diff) | |
| download | qemu-85f49cad879adfb5c3cbdc47ca3c3b50eb8f40bc.tar.gz | |
qemu-img: Convert by cluster size if target is compressed
If target block driver forces compression, qemu-img convert needs to
write by cluster size as well as "-c" option.
Particularly, this applies for converting to VMDK streamOptimized
format.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index 467fb2ba0a..27d8598eec 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -34,6 +34,10 @@ typedef struct BlockDriverInfo { * opened with BDRV_O_UNMAP flag for this to work. */ bool can_write_zeroes_with_unmap; + /* + * True if this block driver only supports compressed writes + */ + bool needs_compressed_writes; } BlockDriverInfo; typedef struct BlockFragInfo { |