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block: introduce block job error
The following behaviors are possible:
'report': The behavior is the same as in 1.1. An I/O error,respectively during a read or a write, will complete the job immediatelywith an error code.
'ignore': An I/O error, respectively during a read or a write, will be...
block: add block_job_query
Extract it out of the implementation of info block-jobs.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>Reviewed-by: Eric Blake <eblake@redhat.com>Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block: add support for job pause/resume
Job pausing reuses the existing support for cancellable sleeps. A pausehappens at the next sleeping point and lasts until the coroutine isre-entered explicitly. Cancellation was already doing a forced resume,so implement it explicitly in terms of resume....
block: move job APIs to separate files