[libvirt] [PATCH v3 11/18] blockcopy: split out virsh implementation
Peter Krempa
pkrempa at redhat.com
Fri Sep 5 09:30:58 UTC 2014
On 09/05/14 11:29, Peter Krempa wrote:
> On 08/31/14 06:02, Eric Blake wrote:
>> I'm about to extend the capabilities of blockcopy. Hiding a few
>> common lines of implementation gets in the way of the new required
>> logic, and putting the new logic in the common implementation won't
>> benefit any of the other blockjob operations. Therefore, it is
>> simpler to just do the work inline. There should be no semantic
>> change in this patch.
>>
>> * tools/virsh-domain.c (blockJobImpl): Drop unused variable. Move
>> block copy guts...
>> (cmdBlockCopy): ...into their lone caller.
>>
>> Signed-off-by: Eric Blake <eblake at redhat.com>
>> ---
>> tools/virsh-domain.c | 45 ++++++++++++++++++++++++++-------------------
>> 1 file changed, 26 insertions(+), 19 deletions(-)
>>
>> diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
>> index 813d8e0..b92b2eb 100644
>> --- a/tools/virsh-domain.c
>> +++ b/tools/virsh-domain.c
>
>
>> @@ -1907,6 +1894,9 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd)
>> bool quit = false;
>> int abort_flags = 0;
>>
>> + if (vshCommandOptStringReq(ctl, cmd, "path", &path) < 0)
>> + return false;
>> +
>> blocking |= vshCommandOptBool(cmd, "timeout") || pivot || finish;
>> if (blocking) {
>> if (pivot && finish) {
>
> ...
>
>> @@ -1935,7 +1923,26 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd)
>> return false;
>> }
>>
>> - if (!blockJobImpl(ctl, cmd, VSH_CMD_BLOCK_JOB_COPY, &dom))
>> + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
>> + goto cleanup;
>> +
>> + if (vshCommandOptULWrap(cmd, "bandwidth", &bandwidth) < 0) {
>> + vshError(ctl, "%s", _("bandwidth must be a number"));
>> + goto cleanup;
>> + }
>> +
>> + if (vshCommandOptBool(cmd, "shallow"))
>> + flags |= VIR_DOMAIN_BLOCK_REBASE_SHALLOW;
>> + if (vshCommandOptBool(cmd, "reuse-external"))
>> + flags |= VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT;
>> + if (vshCommandOptBool(cmd, "raw"))
>> + flags |= VIR_DOMAIN_BLOCK_REBASE_COPY_RAW;
>> + if (vshCommandOptBool(cmd, "blockdev"))
>> + flags |= VIR_DOMAIN_BLOCK_REBASE_COPY_DEV;
>> + if (vshCommandOptStringReq(ctl, cmd, "dest", &dest) < 0)
>> + goto cleanup;
>> +
>
> You could extract the flags and string at the top where you extract
> @path to be consistent, but that's more bikeshedding than useful.
>
Hmmm, next patch is moving it to the destination I've suggested. It'd be
better to move it to the correct position right away then ...
>> + if (virDomainBlockRebase(dom, path, dest, bandwidth, flags) < 0)
>> goto cleanup;
>>
>> if (!blocking) {
>>
>
> ACK as-is.
>
> Peter
>
>
>
> --
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> libvir-list at redhat.com
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>
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