Excerpts from liubo's message of 2011-03-03 03:35:42 -0500:
>
> For datacow control, the corresponding inode flags are needed.
> This is for the following patch.
>
> Signed-off-by: Liu Bo <liubo2...@cn.fujitsu.com>
> ---
> include/linux/fs.h | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 63d069b..bef47ff 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -353,6 +353,8 @@ struct inodes_stat_t {
> #define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
> #define FS_EXTENT_FL 0x00080000 /* Extents */
> #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
> +#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
> +#define FS_COW_FL 0x01000000 /* Cow file */
> #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
>
> #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
Hi everyone,
I'd like to go ahead and include these for btrfs to use. Are there
objections or a different preferred interface?
-chris
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