From: Mykola Golub <mgolub@mirantis.com>
Date: Thu, 3 Nov 2016 14:05:23 +0000 (+0200)
Subject: librbd: snap_get_limit compatibility check
X-Git-Tag: v11.1.0~399^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F11766%2Fhead;p=ceph.git

librbd: snap_get_limit compatibility check

Signed-off-by: Mykola Golub <mgolub@mirantis.com>
---

diff --git a/src/librbd/internal.cc b/src/librbd/internal.cc
index 13dc586c4dc6..21188895c277 100644
--- a/src/librbd/internal.cc
+++ b/src/librbd/internal.cc
@@ -1774,8 +1774,13 @@ int mirror_image_disable_internal(ImageCtx *ictx, bool force,
 
   int snap_get_limit(ImageCtx *ictx, uint64_t *limit)
   {
-    return cls_client::snapshot_get_limit(&ictx->md_ctx, ictx->header_oid,
-					  limit);
+    int r = cls_client::snapshot_get_limit(&ictx->md_ctx, ictx->header_oid,
+                                           limit);
+    if (r == -EOPNOTSUPP) {
+      *limit = UINT64_MAX;
+      r = 0;
+    }
+    return r;
   }
 
   int snap_set_limit(ImageCtx *ictx, uint64_t limit)