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librbd: Asynchronous (v2) image creation #9585

Merged
merged 15 commits into from Aug 10, 2016
Merged

librbd: Asynchronous (v2) image creation #9585

merged 15 commits into from Aug 10, 2016

Commits on Aug 7, 2016

  1. librbd / ImageCtx: singleton thread pool instance helper 

    Introduce static member function in ImageCtx to fetch (and
initialize) singleton thread pool.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  2. librbd / ImageCtx: singleton safetimer instance helper 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  3. journaler: asynchronous JournalTrimmer::remove_objects() 

    Asynchronous removal of journal objects for a given rbd image.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  4. journaler: implement asynchronous exists() 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  5. journaler: implement asynchronous remove() 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  6. librbd / journal: async journal removal state machine 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  7. journaler: async journal object creation 

    Introduce asynchronous journal object creation. This is
a prerequisite for asynchronous creation of rbd image
journals.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  8. librbd / journal: async journal creation state machine 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  9. librbd: asynchronous image creation state machine 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  10. librbd: helper to generate unique image id 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  11. cls / librbd: use asynchronous image creation state machine 

    ... plus changes in rbd class library to use helpers methods.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  12. librbd: minor refactor in create_v1() 

    create_v2() uses util::generate_image_id() therefore not
requiring 'bid' to be passed in as parameter. This makes
bid generation in create() unnecessary -- hence move this
call to create_v1().

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  13. rbd-mirror: asynchronously create mirror images 

    Use the newly instroduced asynchronous image creation state
machine (CreateRequest) to create mirrored images.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  14. test: fix CreateImageRequest unit test case 

    Signed-off-by: Venky Shankar <vshankar@redhat.com>
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  15. journaler: remove ununsed synchronous API routines 

    Synchronous callers now call the asynchronous version wrapped
around C_SaferCond. Also take care of mocked methods.

Fixes: http://tracker.ceph.com/issues/15321
Signed-off-by: Venky Shankar <vshankar@redhat.com>
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