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luminous: bluestore: asyn cdeferred_try_submit deadlock #17494

Merged
merged 1 commit into from Sep 8, 2017
Merged

luminous: bluestore: asyn cdeferred_try_submit deadlock #17494

merged 1 commit into from Sep 8, 2017

Commits on Sep 5, 2017

  1. os/bluestore: separate finisher for deferred_try_submit 

    Reusing finishers[0], which is used for completions back into the OSD,
is deadlock-prone: the OSD code might block trying to submit new IO or
while waiting for some other bluestore work to complete.

Fixes: http://tracker.ceph.com/issues/21207
Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit 2b6a9d1)
    @liewegas @smithfarm
    liewegas authored and smithfarm committed Sep 5, 2017
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