os/bluestore: clone overlay data #7860
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majianpeng
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Don't forget copy overlay data when do _clone. Because bluestore_overlay_max_length & bluestore_overmay_max maybe changed. So the data of source object maybe not write into overlay for dest object. For this case, we don't share the extent. For simple, we don't care whether can write data into overlay. Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
liewegas
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liewegas
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Mar 17, 2016
os/bluestore: clone overlay data Reviewed-by: Sage Weil <sage@redhat.com>
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Make BlueStore::_clone work when source-object has overlay data.