On Tue 09-12-14 13:22:25, Li Xi wrote:
> This patch adds a new internal field of ext4 inode to save project
> identifier. Also a new flag EXT4_INODE_PROJINHERIT is added for
> inheriting project ID from parent directory.
I have noticed one thing you apparently changed in v7 of the patch set.
See below.
> Signed-off-by: Li Xi <lixi@xxxxxxx>
> Reviewed-by: Jan Kara <jack@xxxxxxx>
> ---
> fs/ext4/ext4.h | 21 +++++++++++++++++----
> fs/ext4/ialloc.c | 6 ++++++
> fs/ext4/inode.c | 29 +++++++++++++++++++++++++++++
> fs/ext4/namei.c | 17 +++++++++++++++++
> fs/ext4/super.c | 1 +
> include/uapi/linux/fs.h | 1 +
> 6 files changed, 71 insertions(+), 4 deletions(-)
>
> diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
> index 29c43e7..8bd1da9 100644
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@ -377,16 +377,18 @@ struct flex_groups {
> #define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
> #define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
> #define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
> +#define EXT4_PROJINHERIT_FL FS_PROJINHERIT_FL /* Create with parents projid */
How did FS_PROJINHERIT_FL get here? There used to be 0x20000000 in older
version of the patch set which is correct - this definition is defining
ext4 on-disk format. As such it is an ext4 specific flag and should be
definined to a fixed constant independed of any other filesystem. It seems
you are somewhat mixing what is an on-disk format flag value and what is a
flag value passed from userspace. These two may be different things and you
need to convert between the values when getting / setting flags...
Honza
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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