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-rw-r--r--fs/xfs/xfs_ioctl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index c65d9eacf54d..8b9f31c54c1e 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1038,6 +1038,10 @@ xfs_ioctl_setattr_xflags(
if ((fa->fsx_xflags & FS_XFLAG_REALTIME) && xfs_is_reflink_inode(ip))
return -EINVAL;
+ /* Don't allow us to set DAX mode for a reflinked file for now. */
+ if ((fa->fsx_xflags & FS_XFLAG_DAX) && xfs_is_reflink_inode(ip))
+ return -EINVAL;
+
/*
* Can't modify an immutable/append-only file unless
* we have appropriate permission.