From a431c527dc92cd4ada35957692f6a9f23a840b1d Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 16 Mar 2010 10:53:45 -0700
Subject: [PATCH] filestore: fix CLONE_RANGE detection

---
 src/os/FileStore.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/os/FileStore.cc b/src/os/FileStore.cc
index 2aa37e2d841d9..33c4ca0da02b9 100644
--- a/src/os/FileStore.cc
+++ b/src/os/FileStore.cc
@@ -425,11 +425,12 @@ int FileStore::_detect_fs()
     btrfs = true;
 
     // clone_range?
+    btrfs_clone_range = true;
     int r = _do_clone_range(fsid_fd, -1, 0, 1);
     if (r == -EBADF) {
       dout(0) << "mount btrfs CLONE_RANGE ioctl is supported" << dendl;
-      btrfs_clone_range = true;
     } else {
+      btrfs_clone_range = false;
       dout(0) << "mount btrfs CLONE_RANGE ioctl is NOT supported: " << strerror_r(-r, buf, sizeof(buf)) << dendl;
     }
   } else {
-- 
2.39.5