hammer: librbd: possible QEMU deadlock after creating image snapshots#8011
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hammer: librbd: possible QEMU deadlock after creating image snapshots#80112 commits merged intoceph:hammerfrom
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March 9, 2016 18:11
Refs: ceph#14988 Signed-off-by: Jason Dillaman <dillaman@redhat.com> (cherry picked from commit 16b6efd) (cherry picked from commit 7ffbe40)
If a snapshot is created out-of-band, the next IO will result in the cache being flushed. If pending writeback data performs a copy-on-write, the read from the parent will be blocked. Fixes: ceph#15032 Signed-off-by: Jason Dillaman <dillaman@redhat.com> (cherry picked from commit f9e5ae8)
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…r creating image snapshots Reviewed-by: Loic Dachary <ldachary@redhat.com>
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@dillaman is the double cherry-pick -x on 621e3ae intentional ? |
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@dachary Just guessing since this was a month ago, but I'd think was cherry-picked from the infernalis branch just so that it applied cleanly (thus it picked up the chain). |
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@dillaman that's fine :-) |
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http://tracker.ceph.com/issues/15033