pybind/rbd: new OperationNotSupported exception

This will help catch errors where the backing OSDs do not support
a given RBD feature.

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 97c1a120b7e7d934dd5d2456fd1fb4c1d0e891ec)

diff --git a/src/pybind/rbd/rbd.pyx b/src/pybind/rbd/rbd.pyx
index 5af51ee84546960b9fdce819a3b5809f95c54d69..fa9f997492716a6afcd4cd5f1cdfae26c6a6674e 100644 (file)
--- a/src/pybind/rbd/rbd.pyx
+++ b/src/pybind/rbd/rbd.pyx
@@ -787,45 +787,52 @@ class Timeout(OSError):
 class DiskQuotaExceeded(OSError):
     pass
 
+class OperationNotSupported(OSError):
+    def __init__(self, message, errno=None):
+        super(OperationNotSupported, self).__init__(
+                "RBD operation not supported (%s)" % message, errno)
+
 class OperationCanceled(OSError):
     def __init__(self, message, errno=None):
         super(OperationCanceled, self).__init__(
                 "RBD operation canceled (%s)" % message, errno)
 
 cdef errno_to_exception = {
-    errno.EPERM     : PermissionError,
-    errno.ENOENT    : ImageNotFound,
-    errno.EIO       : IOError,
-    errno.ENOSPC    : NoSpace,
-    errno.EEXIST    : ImageExists,
-    errno.EINVAL    : InvalidArgument,
-    errno.EROFS     : ReadOnlyImage,
-    errno.EBUSY     : ImageBusy,
-    errno.ENOTEMPTY : ImageHasSnapshots,
-    errno.ENOSYS    : FunctionNotSupported,
-    errno.EDOM      : ArgumentOutOfRange,
-    errno.ESHUTDOWN : ConnectionShutdown,
-    errno.ETIMEDOUT : Timeout,
-    errno.EDQUOT    : DiskQuotaExceeded,
-    ECANCELED       : OperationCanceled,
+    errno.EPERM      : PermissionError,
+    errno.ENOENT     : ImageNotFound,
+    errno.EIO        : IOError,
+    errno.ENOSPC     : NoSpace,
+    errno.EEXIST     : ImageExists,
+    errno.EINVAL     : InvalidArgument,
+    errno.EROFS      : ReadOnlyImage,
+    errno.EBUSY      : ImageBusy,
+    errno.ENOTEMPTY  : ImageHasSnapshots,
+    errno.ENOSYS     : FunctionNotSupported,
+    errno.EDOM       : ArgumentOutOfRange,
+    errno.ESHUTDOWN  : ConnectionShutdown,
+    errno.ETIMEDOUT  : Timeout,
+    errno.EDQUOT     : DiskQuotaExceeded,
+    errno.EOPNOTSUPP : OperationNotSupported,
+    ECANCELED        : OperationCanceled,
 }
 
 cdef group_errno_to_exception = {
-    errno.EPERM     : PermissionError,
-    errno.ENOENT    : ObjectNotFound,
-    errno.EIO       : IOError,
-    errno.ENOSPC    : NoSpace,
-    errno.EEXIST    : ObjectExists,
-    errno.EINVAL    : InvalidArgument,
-    errno.EROFS     : ReadOnlyImage,
-    errno.EBUSY     : ImageBusy,
-    errno.ENOTEMPTY : ImageHasSnapshots,
-    errno.ENOSYS    : FunctionNotSupported,
-    errno.EDOM      : ArgumentOutOfRange,
-    errno.ESHUTDOWN : ConnectionShutdown,
-    errno.ETIMEDOUT : Timeout,
-    errno.EDQUOT    : DiskQuotaExceeded,
-    ECANCELED       : OperationCanceled,
+    errno.EPERM      : PermissionError,
+    errno.ENOENT     : ObjectNotFound,
+    errno.EIO        : IOError,
+    errno.ENOSPC     : NoSpace,
+    errno.EEXIST     : ObjectExists,
+    errno.EINVAL     : InvalidArgument,
+    errno.EROFS      : ReadOnlyImage,
+    errno.EBUSY      : ImageBusy,
+    errno.ENOTEMPTY  : ImageHasSnapshots,
+    errno.ENOSYS     : FunctionNotSupported,
+    errno.EDOM       : ArgumentOutOfRange,
+    errno.ESHUTDOWN  : ConnectionShutdown,
+    errno.ETIMEDOUT  : Timeout,
+    errno.EDQUOT     : DiskQuotaExceeded,
+    errno.EOPNOTSUPP : OperationNotSupported,
+    ECANCELED        : OperationCanceled,
 }
 
 cdef make_ex(ret, msg, exception_map=errno_to_exception):