• Eric Blake's avatar
    qemu-io: Switch 'map' output to byte-based reporting · 6f3c90af
    Eric Blake authored
    Mixing byte offset and sector allocation counts is a bit
    confusing.  Also, reporting n/m sectors, where m decreases
    according to the remaining size of the file, isn't really
    adding any useful information; and reporting an offset at
    both the front and end of the line, with large amounts of
    whitespace, is pointless.  Update the output to use byte
    counts and shorter lines, then adjust the affected tests
    (./check -qcow2 102, ./check -vpc 146).
    
    Note that 'qemu-io map' is MUCH weaker than 'qemu-img map';
    the former only shows which regions of the active layer are
    allocated, without regards to where the allocation comes from
    or whether the allocated portion is known to read as zero
    (because it is using the weaker bdrv_is_allocated()); while the
    latter (especially in --output=json mode) reports more details
    from bdrv_get_block_status().
    Signed-off-by: 's avatarEric Blake <eblake@redhat.com>
    Message-id: 20170429191419.30051-4-eblake@redhat.com
    Reviewed-by: 's avatarMax Reitz <mreitz@redhat.com>
    Signed-off-by: 's avatarMax Reitz <mreitz@redhat.com>
    6f3c90af
qemu-io-cmds.c 59.2 KB