Re: [PATCH 2/2] Btrfs: don't change inode flag of the dest clone file

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On Wed, Sep 14, 2011 at 01:25:36PM +0800, Li Zefan wrote:
> 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.

Good catch! (I did not find any further direct assignment of two inode
flags.)

> 
> Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxx>

IMNSHO should go to stable.


david

> ---
>  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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