Merge tag 'mmc-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

[cascardo/linux.git] / fs / xfs / xfs_pnfs.c

diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index 0f14b2e..93a7aaf 100644 (file)
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -113,6 +113,13 @@ xfs_fs_map_blocks(
        if (XFS_IS_REALTIME_INODE(ip))
                return -ENXIO;
 
+       /*
+        * The pNFS block layout spec actually supports reflink like
+        * functionality, but the Linux pNFS server doesn't implement it yet.
+        */
+       if (xfs_is_reflink_inode(ip))
+               return -ENXIO;
+
        /*
         * Lock out any other I/O before we flush and invalidate the pagecache,
         * and then hand out a layout to the remote system.  This is very