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rbd: support for exclusive-lock feature

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Add basic support for RBD_FEATURE_EXCLUSIVE_LOCK feature.  Maintenance
operations (resize, snapshot create, etc) are offloaded to librbd via
returning -EOPNOTSUPP - librbd should request the lock and execute the
operation.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Tested-by: Mike Christie <mchristi@redhat.com>
This commit is contained in:
Ilya Dryomov
2016-08-12 16:40:02 +02:00
parent 99d1694310
commit ed95b21a4b
3 changed files with 812 additions and 20 deletions
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1
net/ceph/ceph_strings.c
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@ -15,6 +15,7 @@ const char *ceph_entity_type_name(int type)
default: return "unknown";
}
}
EXPORT_SYMBOL(ceph_entity_type_name);
const char *ceph_osd_op_name(int op)
{