Re: [PATCH 3/8] btrfs: uapi/linux/btrfs.h migration, document subvol flags

[Liu Bo <bo.li.liu@oracle.com>]

On Fri, Apr 01, 2016 at 04:14:25PM -0400, Jeff Mahoney wrote:
> Signed-off-by: Jeff Mahoney <jeffm@suse.com>

Looks good to me.

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>

Thanks,

-liubo

> ---
>  include/uapi/linux/btrfs.h | 17 ++++++++++++++---
>  1 file changed, 14 insertions(+), 3 deletions(-)
> 
> diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
> index 9651af3..0316e23 100644
> --- a/include/uapi/linux/btrfs.h
> +++ b/include/uapi/linux/btrfs.h
> @@ -34,9 +34,6 @@ struct btrfs_ioctl_vol_args {
>  
>  #define BTRFS_DEVICE_PATH_NAME_MAX 1024
>  
> -#define BTRFS_SUBVOL_CREATE_ASYNC	(1ULL << 0)
> -#define BTRFS_SUBVOL_RDONLY		(1ULL << 1)
> -#define BTRFS_SUBVOL_QGROUP_INHERIT	(1ULL << 2)
>  #define BTRFS_FSID_SIZE 16
>  #define BTRFS_UUID_SIZE 16
>  #define BTRFS_UUID_UNPARSED_SIZE	37
> @@ -85,6 +82,20 @@ struct btrfs_ioctl_qgroup_limit_args {
>  	struct btrfs_qgroup_limit lim;
>  };
>  
> +/*
> + * flags for subvolumes
> + *
> + * Used by:
> + * struct btrfs_ioctl_vol_args_v2.flags
> + *
> + * BTRFS_SUBVOL_RDONLY is also provided/consumed by the following ioctls:
> + * - BTRFS_IOC_SUBVOL_GETFLAGS
> + * - BTRFS_IOC_SUBVOL_SETFLAGS
> + */
> +#define BTRFS_SUBVOL_CREATE_ASYNC	(1ULL << 0)
> +#define BTRFS_SUBVOL_RDONLY		(1ULL << 1)
> +#define BTRFS_SUBVOL_QGROUP_INHERIT	(1ULL << 2)
> +
>  #define BTRFS_SUBVOL_NAME_MAX 4039
>  struct btrfs_ioctl_vol_args_v2 {
>  	__s64 fd;
> -- 
> 2.7.1
> 
> --
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