The dst file will have the same inode flags with dst file after
file clone, and I think it's unexpected.

For example, the dst file will suddenly become immutable after
getting some share of data with src file, if the src is immutable.

Signed-off-by: Li Zefan <l...@cn.fujitsu.com>
---
 fs/btrfs/ioctl.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index dc82bbb..a401514 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2434,7 +2434,6 @@ static noinline long btrfs_ioctl_clone(struct file *file, 
unsigned long srcfd,
                        if (endoff > inode->i_size)
                                btrfs_i_size_write(inode, endoff);
 
-                       BTRFS_I(inode)->flags = BTRFS_I(src)->flags;
                        ret = btrfs_update_inode(trans, root, inode);
                        BUG_ON(ret);
                        btrfs_end_transaction(trans, root);
-- 1.7.3.1 
--
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