Re: [Qemu-devel] [PATCH v5 09/14] block: Add block job transactions

[Eric Blake]

On 09/07/2015 01:34 AM, Fam Zheng wrote:
> Sometimes block jobs must execute as a transaction group.  Finishing
> jobs wait until all other jobs are ready to complete successfully.
> Failure or cancellation of one job cancels the other jobs in the group.
> 
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> [Rewrite the implementation which is now contained in block_job_completed.
> --Fam]
> Signed-off-by: Fam Zheng <address@hidden>
> ---
>  blockjob.c               | 134 
> ++++++++++++++++++++++++++++++++++++++++++++++-
>  include/block/block.h    |   1 +
>  include/block/blockjob.h |  38 ++++++++++++++
>  3 files changed, 171 insertions(+), 2 deletions(-)

> +static void block_job_completed_txn_success(BlockJob *job)
> +{
> +    AioContext *ctx;
> +    BlockJobTxn *txn = job->txn;
> +    BlockJob *other_job, *next;
> +    /*
> +     * Successful completion, see if there are other running jobs in this
> +     * txn.
> +     **/

Unusual **/


-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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